Installation and
Configurat ion Guide
HP J3245A
HP AdvanceStack Switch 800T
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HP Customer Support Services
How t o get t he lat est soft ware/agent firmwar e
You can download from the World Wide Web, HP FTP Library Service, CompuServe,
and HP BBS a compressed file (j3245a.exe) containing the latest version of the HP
Switch 800T software and proprietary MIB, the HP J3108A FDDI Module software, and
a software download utility file (update.exe). After you download the file, extr act the
file by typing filename
[Enter]. For example, j3245a [Enter].
World Wide Web
http://www.hp.com/go/network_city
Select the “Support” section.
From this web site, you can also download information on the HP networking prod-
ucts. If you have a growing network, download the Designing HP AdvanceStack
Workgroup Networks Guide or call 1-800-752-0900 in the U.S. to receive a copy through
the mail.
HP FTP Library Service
1. FTP to Internet IP Address — ftp ftp.hp.com.
2. Log in as anonymous and press [Return] at the password prompt.
3. Enter bin to set the transfer type.
4. Enter cd /pub/networking/software.
5. Enter get filename to transfer the file to your computer, then quit.
CompuSer ve
1. Login to CompuServe.
2. Go to the “hp” service.
3. Select “HP Systems, Disks, Tapes, etc.”
4. Select “Networking Products” library.
5.
filename and then quit.
HP BBS
Set your modem to no parity, eight bits, 1 stop bit, set speed up to 14400 bps, and with
your telecommunication program (e.g., Windows Terminal) dial (208) 344-1691 in the
U.S. to get the latest software for your HP networking product. For other countries,
see http://www.hp.com/cposupport/eschome.html.
✂
(over for more services)
Obtain the latest console code (j3245a.exe) from
HP FTP Library: ftp ftp-boi.external.hp.com
World Wide Web: http://www.hp.com/go/network_city
HP BBS:
(over)
(208) 344-1691
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HP FIRST Fax Ret rieval Service
HP FIRST is an automated fax retrieval service that is available 24 hours a day, seven
days a week. HP FIRST provides information on the following topics:
■
■
■
■
Product information
Troubleshooting instructions
Technical reviews and articles
Configuration information
To access HP FIRST, dial one of the following phone numbers:
Location
Phone Number
U.S. and Canada Only
Dial1(800)333-1917withyour fax machine or touch-tone phone
and press 1.
Outside the U.S. and Canada
Dial 1 (208) 344-4809 from your fax machine and press 9.
To receive a list of currently available documents, enter document number 19941. The information
you requested will be sent to you by return fax. For other countries, see http://www.hp.com/
cposupport/eschome.html.
Addit ional HP Support Services
In addition to the above services, you can purchase various HP telephone support
services which provide you expert HP technical assistance:
■
■
Network Phone-In Support provides you support at an hourly rate. In the U.S.,
call 1-800-790-5544. In other countries, please contact your local HP Response
Center to see if this service is available in your country.
HP SupportPack Comprehensive Network Support provides complete prob-
lem resolution for medium to large interconnected local and wide area
networks. Contact your HP Authorized Reseller or the nearest HP Sales and
Support Office for more information.
HP offers other hardware support services. Please contact your reseller for more
information.
✂
CompuServe:
Go hpsys
Lib 7.
Download asfw.exe
Network Phone-In
Support (hourly):
1-800-790-5544
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HP AdvanceStack Switch 800T
Installation and Configuration Guide
HP J3245A
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© Copyright 1997 Hewlett-Packard Company
All Rights Reserved.
Disclaimer
The information contained in this document is subject to
change without notice.
This document contains information which is protected by
copyright. Reproduction, adaptation, or translation without
prior permission is prohibited, except as allowed under the
copyright laws.
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or use of this material.
Publicat ion Number
J3245-90001
March 1997
Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Applicable Product
HP J3245A
Warrant y
A copy of the specific warranty terms applicable to your
Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service Office or
authorized dealer.
Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5551
Roseville, California 95747-5551
http://www.hp.com/go/network_city
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Preface
Preface
Use of This Guide and Other Switch 800T
Documentation
This guide describes how to install the Switch 800T (HP J3245A) in your
network and use the console interface for the HP AdvanceStack Switch 800T
(hereafter referred to as the “Switch 800T”).
Impor tant ! Before installing or removing a transceiver module, refer to the
specific transceiver module documentation describing these procedures.
■
If you need information on specific parameters in the console interface,
refer to the online help provided in the interface.
■
If you need further information on Hewlett-Packard switch technology,
refer to the HP AdvanceStack Products CD shipped with your Switch
800T.
iii
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Preface
Overview of Console Applications
Example of the HP AdvanceStack Switch 800T with Four 100Base-TX Transceivers
installed
When powered-up in the factory default configuration, the Switch 800T-
automatically operates as a multiport learning bridge with the following
configuration:
■
■
All ports are enabled and are members of a single broadcast domain
Spanning tree protocol (STP) disabled
The console interface provides the following capabilities for use when you
want to move beyond this basic level of operation:
■
■
Monitoring system performance and status
Customizing the system configuration for improved performance and
unique system requirements
■
■
■
■
Enabling network management (SNMP) access
Setting passwords to help protect system security
Downloading system software updates
Troubleshooting
iv
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Contents
Contents
1: Inst allat ion
Inst allation Summar y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1. Install Add-In Transceiver s (Optiona l) . . . . . . . . . . . . . . . . . . . . . . . 1-3
2. Verify the Switch’s Operat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3. Mount the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4. Connect a Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5. Complet e t he Net wor k Connect ions t o t he Switch . . . . . . . . . . 1-19
6. Connect a Console Device ( Optiona l) . . . . . . . . . . . . . . . . . . . . . . 1-21
Where To Go from Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
2: Using the Console Interface
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
St art ing and Ending a Console Session . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Main Menu Feat ures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Screen St ruct ur e and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Using Password Secur it y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Reboot ing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Reset t ing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
3: Configuring t he Swit ch
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Configurable Feat ures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
IPX Service Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Internet (IP) Service Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Virtual LAN (VLAN) Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
IP Multicast (IGMP) Service Features—Multimedia Traffic Control 3-12
v
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Contents
SNMP Communities Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Trap Receivers Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Serial Link Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Console Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Network Monitoring Port Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Spanning Tree Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Traffic/Security Filter Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Automatic Broadcast Control (ABC) Features—Layer 3 Switching 3-23
4: Monit oring and Analyzing Switch Operation from the
Console
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
St at us and Counters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Port Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Port Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Spanning Tree (STP) Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
IP Multicast (IGMP) Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Automatic Broadcast Control (ABC) Information . . . . . . . . . . . . . . . 4-14
Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
5: Using SNMP To Monit or and Manage t he Switch
SNMP Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
SNMP Configuration Pr ocess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
6: Using the Advanced Commands
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
vi
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Contents
7: Advanced Concept s
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Spanning Tree Pr ot ocol ( STP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Por t Trunking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Filt ers and Secur it y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Virt ual LANs ( VLANs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Effect of VLANs on Other Switch Features . . . . . . . . . . . . . . . . . . . . . 7-15
How To Configure a VLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17
VLAN Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21
IP Mult icast ( IGMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
How IGMP Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23
How To Configure IGMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Aut omat ic Broadcast Cont rol ( ABC) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
How ABC Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
How To Configure ABC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32
8: File Transfers
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Downloading an Operat ing Syst em . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Using TFTP To Download the OS File . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Switch-to-Switch Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Tr oubleshooting TFTP Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Tr ansferring Swit ch 800T Configurat ions . . . . . . . . . . . . . . . . . . . . . . . 8-8
9: Troubleshooting
Tr oubleshooting Approaches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Diagnosing wit h t he LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Inst allation Pr oblems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Incorrect Hardware Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Console RS-232 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Cabling Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Unusual Net work Act ivit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
vii
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Contents
Diagnost ic Test s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Testing End-to-End Network Communications . . . . . . . . . . . . . . . . . . 9-8
Cust omer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
A: Cables and Connectors
Recommended Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Twisted-Pair Cable/Connect or Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . A-3
Twisted-Pair Cable Pin Assignment s . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
RS-232 Connect or and Cable Pin-Out s . . . . . . . . . . . . . . . . . . . . . . . . . A-6
RS-232-C “Null Modem” Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Minimum Cable Pin-out for Direct Console Connection . . . . . . . . . . A-7
RS-232 Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
B: Specifications
Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Electromagnetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
C: Sample Console Configurations
Windows 3.1 Terminal Applicat ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Procomm Plus V2.01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Ot her Terminal Emulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
D: Swit ch Reference
Front of Swit ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
Back of t he Swit ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1
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Contents
E: BOOTP Operation
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
The Boot p Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
Boot p Database Recor d Ent ries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2
Configuring Boot p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3
F: MAC Address Management
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1
Swit ch ( Default) MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2
VLAN MAC Addr esses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-3
MAC Addr esses ( for Spanning Tree Operat ion) . . . . . . . . . . . . . . . . . F-4
Safet y and Regulatory St atements
Index
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1
Installation
Installation Summary
This chapter describes the installation procedures for the HP J3245A
AdvanceStack Switch 800T (hereafter referred to as the Switch 800T).
The following is a summary of those procedures:
1. Sit e Preparat ion. Ensure that the cabling infrastructure meets the
network specifications for your intended use of the Switch 800T.
•
For 100Base-TX transceivers used in the Switch 800T, use category 5,
four-pair, 100 ohm UTP (unshielded twisted-pair) cables. Cable
lengths can be up to 100 meters. For a connection to an end node, use
straight-through cable. For a connection to a hub or a switch, use a
crossover cable.
•
For 100Base-FX transceivers used in the Switch 800T, use fiber
optical cables that:
–
–
Are fitted with type SC connectors
Conform to ISO/IEC 793-2 type B1 and ITU-T G.652 standards
Ca u ti o n
Ensure that the power source circuits are adequate and properly
grounded. That is, ensure that any Switch 800T installation , together with
any other devices, does not overload the power circuits, wiring, and over-
current protection. To determine the possibility of overloading the supply
circuits, add together the ampere ratings from the nameplates of all
devices installed on the same circuits and compare the total with the
rating limits for the supply circuits. For additional information, refer to
appendix B, “Specifications”.
1-1
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Installation
Installation Summary
2. Inst all tr ansceivers ( opt ional) . The Switch 800T is shipped with four
HP J3192B AdvanceStack 100Base-TX Twisted-Pair Transceiver Modules
(referred to in this manual as “transceivers”) already installed.
Ca u ti o n
Because t he Swit ch 800T can be damaged by installing or removing a
tr ansceiver while powered-up, t he ONLY t ime t o inst all addit ional
tr ansceivers is before powering up t he swit ch or wit h the power
disconnected dur ing scheduled down t imes.
The J3192A twisted-pair transceiver is not supported in the Switch 800T.
Always use the “B” version (J3192B) or any later J3192 transceiver(s).
3. Verify t he switch’s operat ion. This is a simple process of applying
power to the Switch 800T and ensuring that the LEDs on the switch’s front
panel respond properly.
4. Mount t he switch in a rack, on a wall, or on a t ablet op.
Hewlett-Packard sells 19-inch free-standing equipment racks. To order a
rack, contact your HP-authorized LAN dealer.
5. ( Optional) Connect t he J 2962A HP AdvanceSt ack Redundant
Power Supply ( RPS) inst ead of using the swit ch’s own power
supply. This optional power supply can be used instead of the switch’s
main power supply to provide both primary and backup (redundant)
power to keep the switch operating in the event of a failure in either a
power circuit or a power supply unit.
6. Connect t he Switch 800T to a net wor k and connect comput er s and/
or ot her devices t o the swit ch’s port s.
7. Configure t he Swit ch 800T. The Switch 800T, in its factory default
configuration, operates as a multiport transparent bridge. You will need
to use the console interface utility to configure the switch for additional
functionality. Initially, this requires one of the following:
•
A PC with a terminal emulator connected to the Console RS-232 port
on the switch either directly or via a modem
•
An actual terminal directly connected to the Console RS-232 port on
the switch
(For examples of terminal emulator configurations, refer to appendix C,
“Sample Console Configurations”.)
After configuring a minimal IP or IPX configuration through one of the
above options, you can also access the console interface via Telnet or use
a network management tool, such as Hewlett-Packard’s AdvanceStack
Assistant, for some configuration and monitoring functions.
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Installation
1. Install Add-In Transceivers (Optional)
1. Install Add-In Transceivers (Optional)
The Switch 800T is shipped with four HP J3192B AdvanceStack 100Base-TX
Twisted-Pair Transceiver Modules already installed. (The switch does not
support use of the “A” version—HP J3192A—of this transceiver.) Additional
twisted-pair (UTP) or fiber transceivers must be purchased separately. (You
need a minimum of one transceiver installed to connect the switch to your
network, and one additional transceiver installed for each connection to a
server, hub, switch, or other device.) The Switch 800T is designed to operate
with either of the following two transceivers:
■
■
HP J3192B AdvanceStack 100Base-TX Twisted-Pair Transceiver Module
HP J3193B AdvanceStack 100Base-FX Fiber-Optic Transceiver Module
Ca u ti o n
To avoid damage to circuit ry in the Switch 800T and t ransceiver s,
always have t he power to t he Swit ch 800T turned off while a t rans-
ceiver is being inst alled or r emoved.
For proper cooling and for reduction of electromagnetic emissions, ensure
that a slot cover (provided with your Switch 800T) is installed on any unused
transceiver slot.
Slot Covers on Unused
Transceiver Slots
Factory-Installed
100Base-TX (UTP)
Transceivers
Figure 1-1. Switch 800T with Factory-Installed HP J3192B 100Base-TX (UTP)
Transceivers
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Installation
1. Install Add-In Transceivers (Optional)
It may be more convenient to install additional transceivers before installing
the Switch 800T into a rack or other location. Inspect your installation site and
determine whether the switch’s module slots will be accessible.
For a description of currently available transceivers, contact your
HP-authorized LAN dealer or check Hewlett-Packard’s World Wide Web site
listed on the card at the front of this manual.
To Inst all a Tr ansceiver int o the Switch 800T: This procedure
describes the general installation of a transceiver. For information on the
specific transceiver you are installing, plus specific connection and trouble-
shooting information, refer to the HP 100Base-T Transceiver Modules
Installation Guide you received with the transceiver.
1. Unplug the Switch 800T from the AC power source.
Ca u ti o n
To avoid damage to circuit ry in the Switch 800T and t ransceiver s,
always have t he power to t he Swit ch 800T turned off while a
tr ansceiver is being installed or removed.
2. Use a flat-bladed or Torx T-10 screwdriver to unscrew the two retaining
screws from the cover plate on the slot in which you want to install the
transceiver. For example, to install an HP J3192B AdvanceStack 100Base-
TX Twisted-Pair Transceiver Module for port 5:
Loosen These Screws
Figure 1-2. Remove the Cover Plate from the Transceiver Slot
Retain the cover plate for future use. If you remove a transceiver in the
future without replacing it, cover the unused slot with one of these cover
plates.
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Installation
1. Install Add-In Transceivers (Optional)
Ca u ti o n
For proper cooling and reduction of electromagnetic emissions, ensure
that the slot covers (provided with your Switch 800T) are installed on any
unused slots.
3. While constantly touching a metal part of the Switch 800T to discharge
any static electric difference between your body and the switch, carefully
remove the transceiver from its protective anti-static packaging. Hold the
transceiver by its edges, taking care not to touch any of its metal connec-
tors.
4. Slide the transceiver firmly into the open slot as far as it will go. The
transceiver’s faceplate should touch the face of the device.
No te
Ensure that the transceiver you are installing has a blue color bar with the
word “100T” printed on it ([ 100T ]). (See figure 1-3, below.) Any transceiver
that does not have this bar will not operate with the Switch 800T and will cause
a fault condition.
Blue “100T” Color Bar Indicating a
Correct Transceiver for the Switch 800T
5. Tighten the retaining screws on the transceiver until they are snug. Be
careful that you do not overtighten the screws.
6. To install another transceiver, return to step 2. Otherwise, go on to the
next procedure (page 1-6).
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Installation
2. Verify the Switch’s Operation
2. Verify the Switch’s Operation
This process verifies that the Switch 800T is operating properly.
Verify the Switch Hardware
1. Connect the supplied power cord to the switch’s power receptacle.
Power Receptacle on
the Back of the Switch
Figure 1-4. Back Panel of the Switch 800T
2. Plug the power cord into a properly grounded electrical outlet.
No te
The Switch 800T does not have a power switch. It is powered on when the
switch’s power cord is connected to the switch and to a power source.
If your installation requires a different power cord than the one supplied with
the switch, be sure to use a power cord displaying the mark of the safety
agency that defines the regulations for power cords in your country. The mark
is your assurance that the power cord can be used safely with the switch.
3. Check the LEDs on the switch’s front panel.
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Installation
2. Verify the Switch’s Operation
Power LED
Fault LED
RPS LED
Self-test LED
Security LED
Figure 1-5. The Switch 800T System LEDs
When the switch is powered on, it performs a self-diagnostic test. During
the test, the following occurs:
•
•
•
•
All LEDs turn on momentarily.
The Power LED remains on.
The RPS LED turns on if an RPS is connected and supplying power.
The Self-test and Fault LEDs remain on for less than one minute.
When the self-test completes successfully, the following events occur:
•
•
The power LED and, if an RPS is connected, the RPS LED, remain on.
The self-test and Fault LEDs turn off.
No te
No te
If any Fault LED is flashing, the Switch 800T has encountered a problem. Refer
to chapter 9, “Troubleshooting”.
4. After the switch has passed its self-test, turn to “3. Mount the Switch”, on
the next page.
If the switch’s permanent location makes it difficult to access the Console
RS-232 port from a terminal or PC running a terminal emulator, you may want
to temporarily connect a terminal device now and configure the switch
minimally for Telnet access. If you want to do this, refer to “Connect a Console
Device” on page 1-21 before continuing here.
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Installation
3. Mount the Switch
3. Mount the Switch
A Switch 800T can be mounted in two ways:
■
■
■
In a rack or cabinet
On a table
On a wall
The hardware for mounting the switch is included in the accessory kit
(5063-8544) packed with the switch.
Hewlett-Packard sells 19-inch free-standing equipment racks. For more
information, contact your HP authorized LAN dealer.
Mou n t in g
Before mounting the switch, read and follow these mounting precautions:
P r e c a u t io n s
■
Plan the switch’s location and orientation relative to other devices and
equipment. Also consider the cabling that will be attached to the switch
and ports that will be used. In the front of the switch, leave 3 inches
(7.6 cm) of space for twisted-pair cables. In the back of the switch, leave
1-1/2 inches (3.8 cm) of space for the power cord.
■
Ensure that any installation of a Switch 800T, together with any other
devices, does not overload the power circuits, wiring, and over-current
protection. To determine the possibility ofoverloadingthe supplycircuits,
add together the ampere ratings from the nameplates of all devices
installed on the same circuits and compare the total with the rating limits
for the supply circuits.
■
Make sure that the power source circuits are properly grounded, then use
the supplied power cord to connect the Switch 800T to the circuit. Refer
to the Safety and Regulatory Statements that follow the appendixes at the
back of this manual.
■
■
■
Do not install the Switch 800T in an environment where the operating
ambient temperature might exceed 55°C (131°F).
For proper cooling, make sure the air flow around the sides and back of
the switch is not restricted.
If an HP J2962A AdvanceStack Switch 800T Redundant Power Supply is
installed, make sure the air flow around the fan area of the RPS is not
restricted.
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Installation
3. Mount the Switch
Rack or Cabinet Mounting
Wa r n i ng
The rack or cabinet should be adequat ely secured to prevent it from
becoming unst able and/or falling over .
Inst all the Switch 800T only on a tablet op or an equipment r ack or
cabinet designed for t his product. The Swit ch 800T weighs 9.5 lbs ( 4.3
kilos) with four tr ansceivers inst alled. Devices inst alled in a rack or
cabinet should be as low as possible, wit h the heaviest device at t he
bot t om and progressively light er devices inst alled above.
1. If you will be using the optional HP J2962A HP AdvanceStack Redundant
Power Supply (RPS) with the Switch 800T, refer to the Installation and
Reference Guide shipped with the RPS for instructions on how to install
it in a position from which it can be used with the Switch 800T.
2. As shown below, partially install one of the 5/8-inch number 12-24 screws
in each rack upright. Install the screw in the upper hole of a close pair.
(Some cabinets require number 10-32 screws instead, which are not
included in the accessory kit.)
Ca u ti o n
Make sure you have screws that fit your cabinet or rack before mounting the
switch.
Insert a screwintothe
tophole ofa close pair
(0.5-inch)—like one of
these—one ineachof
the rack uprights.
One upright ofanEIA
19-inch telco rack
Figure 1-6. Installing the Mounting Screws
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Installation
3. Mount the Switch
3. Using a Phillips cross-head screwdriver, attach the L-shaped mounting
brackets to each side of the switch with four 10-mm M4 screws (included
in the accessory kit).
Align Top of
Bracket with
Top of Switch
10-mmM4
Screws
Figure 1-7. Attach the Mounting Brackets
4. Place the switch in the rack and lower it so the notches in the bottom of
the bracket slide onto the screws you installed in step 1. Tighten these
screws—be careful not to overtighten. (Refer to figures 1-8 and 1-10.)
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Installation
3. Mount the Switch
Figure 1-8. Position the Switch for Rack Mounting
Figure 1-9. Seat the Switch in the Rack
5. Install the other two 5/8-inch 12-24 screws into the upper hole in each
bracket. Include the cable-tie bracket on the side on which you want to
lead your network cables. (For example, see below.) Tighten these
screws—be careful not to overtighten.
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Installation
3. Mount the Switch
Notice that for the first AdvanceStack device mounted in a rack, the
bottom notch and the top hole in the bracket are used. For the next
AdvanceStack device above, the bottom hole and the top notch are used.
(Refer to figure 1-11, below.) Continue to alternate “notch and hole, hole
and notch” for all AdvanceStack devices to be consecutively installed.
Figure 1-11. Correct Rack Mounting for Multiple AdvanceStack Devices
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Installation
3. Mount the Switch
Mounting the Switch on a Wall
Ca u ti o n
The Switch 800T should be mounted only to a wall or wood surface that is
constructed of a minimum of 1/2-inch plywood or its equivalent.
1. Using a Phillips (cross-head) screwdriver, attach the mounting brackets
to the switch in one of the positions shown in the following two illustra-
tions. Use the 10-mm M4 screws included in the mounting kit.
2. Attach the switch to the wall or wood surface with 5/8-inch number 12
wood screws (not included).
Bracket Mounting
Position on a Wall
for Connectors
Facing Upward
10-mm M4
screws
Bracket
Mounting
Positionona Wall
for Connectors
Plug the power
cord into the
switch’s power
receptacle
Facing Outward
before mounting
the switch.There
may not be
enough room to
do so after the
switch is
mounted.
10-mm M4
screws
Figure 1-12. Bracket Positions for Wall-Mount Options
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Installation
3. Mount the Switch
Table Mounting
Place the switch on a table or other horizontal surface. (No special tools are
necessary.)
Be certain to pick a sturdy table in an uncluttered area. You may want to secure
the switch’s cables to the leg of the table to help prevent people from tripping
over them.
Ca u ti o n
Make sure the air flow around the sides and back ofthe switch is not restricted.
Also, if an HP J2962A AdvanceStack Redundant Power Supply is installed,
make sure the air flow around the fan area of the RPS is not restricted.
Route the power cord(s) and data cables so that they will not create a tripping
hazard for people walking in the area of the switch installation.
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Installation
4. Connect a Power Supply
4. Connect a Power Supply
The Switch 800T does not have a power switch. It is powered-on when the
power cord is plugged in. The switch’s power supply automatically adjusts to
any AC power source between 100-127 volts and 200-240 volts. There are no
voltage range settings to configure.
You can use one of the following to provide power to the Switch 800T:
■
The power cord provided with the Switch 800T.
OR
■
To Use the Power Cord Provided with the Switch 800T:
Ca u ti o n
If you use a power cor d t hat plugs int o the power cord recept acle
( figur e 1-13) , do not use t he optional r edundant power supply ( RPS) .
If your installat ion requires a differ ent power cord t han t he one
mar k of t he safet y agency that defines t he regulat ions for power cor ds
in your countr y. The mar k is your assurance t hat t he power cord can
be used safely wit h t he swit ch.
1. Ensure that the switch is properly mounted. (Refer to “3. Mount the
Switch” on page 1-8.)
2. Plug the power cord into the switch’s power cord receptacle and into an
AC power source.
Power Cord Receptacle
on the Back of the Switch
Figure 1-13. Plugging in the Power Cord
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Installation
4. Connect a Power Supply
To Use the (Optional) HP J2962A AdvanceStack Redundant
Power Supply (RPS):
Ca u ti o n
Remove t he power cord fr om the Switch 800T before connecting t he
( opt ional) r edundant power supply ( RPS) .
You can use the optional HP J2962A AdvanceStack Redundant Power Supply
(RPS) instead of the Switch 800T’s built-in power supply. This can help ensure
continuous switch operation in the event of a power failure on an individual
power supply circuit. It also eliminates reliance on a single device power
supply. To connect the RPS to the Switch 800T, it is necessary to first turn
off power to the switch by removing the switch’s own power cord. Thus, if
you are using the RPS, Hewlett-Packard recommends that you connect the
RPS to the Switch 800T before connecting the switch to your network. Other-
wise, you must schedule downtime to connect the RPS. When the RPS is
connected to a Switch 800T and power is applied to the RPS, the RPS LED on
the Switch 800T’s front panel is lit.
No te
For important information on how to install and connect the (optional) HP
J2962A AdvanceStack Switch 800T Redundant Power Supply (RPS) for use
with the Switch 800T, refer to the documentation provided with the RPS.
RPS LED
Figure 1-14. RPS LED on the Switch 800T’s Front Panel
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Installation
4. Connect a Power Supply
RPS Connector
Note: Do Not Use the Power Cord Receptacle If You Plan To Use the RPS with the Switch.
Figure 1-15. Location of the RPS Connector
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Installation
5. Complete the Network Connections to the Switch
5. Complete the Network Connections
to the Switch
Connect the switch to the power source. With the switch mounted, you are
now ready to connect it to your network. Typical switch connections are:
■
■
■
■
Switch-to-networked devices (i.e. servers, and printers).
Switch-to-hub
Switch-to-switch
Switch-to-router
No te
Refer to the HP AdvanceStack Switch 800T Connectivity Quick Reference that
is shipped with the Switch 800T for examples of Switch 800T connections to
other devices.
For other network design guidelines, refer to An Introduction to Ethernet
LAN Switches and Designing Switched Networks, both of which are included
on the CD shipped with the Switch 800T. For physical topology guidelines,
refer to Designing HP AdvanceStack Workgroup Networks, available from
HP authorized LAN dealers and also on the CD shipped with your Switch 800T.
Network connections to the Switch 800T are through ports on the optional
transceivers installed in the switch.
Figure 1-16. Network Connections
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Installation
5. Complete the Network Connections to the Switch
For connections to these ports, see the documentation you received with the
specific transceiver, and to the Connectivity Quick Reference mentioned in
the preceding note.
Cable Management.
The mounting brackets designed for the Switch 800T provide help for the
problem of managing your network cables. Each bracket has a series of holes
for attaching a cable tie to bundle network cables away from the switch.
Hole for Cable
Tie to Bundle
Network Cables
Figure 1-17. Cable Management
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Installation
6. Connect a Console Device (Optional)
6. Connect a Console Device (Optional)
The Switch 800T console interface enables you to use a PC or a terminal to do
the following:
■
■
■
Control password security
Monitor switch and port statistics
Modify the switch’s configuration, or provide a minimal configuration for
Telnet or network management products (used for in-band access to the
switch) such as Hewlett-Packard’s AdvanceStack Assistant (ASA)
■
■
Use the switch’s event log and command line to help in troubleshooting
Download new version of switch software (OS)
No te
The Switch 800T is shipped with a factory default configuration that enables
operation as a multiport transparent bridge (switch) when installed in a
network. For this operation, connecting a console device is unnecessary.
However, for some of the other uses listed above, you will need to have
console access.
You can use either of the following methods for console access:
■
Console RS-232 using either a direct or modem connection to a PC
terminal emulator program, or a direct connection to an actual terminal
■
In-Band using Telnet from a network management workstation. (To
enable Telnet—or network management access—it is necessary to first
use a direct-connect or modem-connect console device to configure an IP
address and subnet mask for the switch.)
The Switch 800T can simultaneously support one console session via the
Console RS-232 port and one console session via Telnet.
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Installation
6. Connect a Console Device (Optional)
Direct Console Management, Using A Serial Cable and a
Terminal or PC Terminal Emulator
You can use either a PC emulating an ASCII terminal (such as the terminal
application included with Microsoft Windows 3.1, Windows 95, or Windows
NT) or an ASCII terminal.
To directly connect a PC or terminal to a Switch 800T, follow these steps:
1. Connect the PC or terminal to the switch’s Console RS-232 port using an
RS-232-C console cable (included). (If you need information on pin-outs
and recommended cables, see appendix A, “Cables and Connectors”)
Console RS-232 Port
Figure 1-18. Connecting a PC or Terminal to the Console RS-232 Port
2. Turn on the terminal or PC’s power (and, if using a PC, start the PC
terminalemulation program). For recommended parameter settings,refer
to appendix C, “Sample Console Configurations”.
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Installation
6. Connect a Console Device (Optional)
3. When you see this message:
Waiting for speed sense. Press enter to continue.
Press [Enter]. You will then see the Switch 800T’s Main Menu.
No te
If the terminal emulator you are using is not set to 9600 Bps, you will see
a series of meaningless characters. Press [Enter] to synchronize the switch
serial port speed with the terminal speed. The switch’s serial port can use
one of several speeds between 300 Bps and 38400 Bps. In most cases, the
switch’s Serial Link Baud Rate should be left at the (default) Speed
Sensesetting. At this setting, it will automatically sense terminal speeds
in the above-mentioned range.
Figure 1-19. The Main Menu
4. If you want to continue with direct console management at this time, refer
to chapter 2, “Using the Console Interface”.
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Installation
6. Connect a Console Device (Optional)
Remote Console Management Usinga Modem and a Terminal
or PC Terminal Emulator
No te
For remote console management use a full-duplex, asynchronous (character-
mode) modem.
1. At the Switch 800T site:
a. Connect the modem to the Switch 800T’s console port using an
RS-232-C modem cable. (For pin-outs and recommended cables refer
to appendix A, “Cables and Connectors”.)
b. If necessary, configure the modem to operate with the current con-
figuration of the Switch 800T. (The modem’s default configuration
may be sufficient.)
2. At the remote site, connect the terminal (or PC emulating a terminal) to
a modem using a modem cable. Make sure the terminal and modems are
functioning properly, then use the modem instructions to establish the
link between the terminal’s modem and the Switch 800T’s modem.
3. Refer to “Starting and Ending a Console Session” on page 2-2.
“Straight-Through
Modem Cable
RJ-11 Telephone
Cable
Switch 800T
External “Remote” Modem
“Straight-Through” Modem
PC Running a
Terminal
Telephone
Company
or Telco
Program
RJ-11 Telephone
Cable
External “Local” Modem. (You can
also use an internal modem.)
Figure 1-20. Example of Remote Access via a Modem
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Installation
Where To Go from Here
Where To Go from Here
Chapter
2 and 3
Topics
To use the console and to configure switch features
4
5
To monitor and analyze switch operation from the console
To prepare the switch for SNMP management and to learn
which MIBs are supported by the switch
6
To use the “Advanced Commands” functions
7
To find further information on the following features and to
configure them:
•
•
•
•
•
•
Spanning Tree Protocol
Port Trunking
Filters and Security
Virtual LANs
Internet Group Management Protocol (IGMP)
Automatic Broadcast Control (ABC)
8
To download a new operating system or transfer a switch
configuration
9
Troubleshooting information
Appendix
Topic
A
B
C
D
E
F
Cable and connector information
Switch specifications
Sample console configurations
LED reference
Bootp information
MAC address management
Safety and Regulatory information
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2
Using the Console Interface
Overview
■
■
■
■
■
■
The Main Menu (page 2-4)
Screen structure and navigation (page 2-5)
Using password security (page 2-7)
Rebooting the switch (page 2-10)
Resetting the switch (page 2-12)
About t he Console Inter face. The console interface enables you to recon-
figure the switch and to monitor the switch status and performance. It consists
of a series of management screens accessed through a menu-driven screen
structure that begins at the Main Menu, and is organized as described in this
section.
The Switch 800T offers two methods of access to the console interface:
■
Console RS-232 (out-of-band) access:
•
Directly connected to the Console RS-232 port, using a serial cable
and a PC running a terminal emulator or an actual terminal
•
Remotely connected to the Console RS-232 port, using modems and
a PC running a terminal emulator or an actual terminal
Refer to chapter 1, “Installation”, for information on making RS-232
hardware connections.
■
In-Band access using Telnet from a PC or UNIX station on the network.
This method requires that you first configure an IP address and subnet
mask by using either out-of-band console access or Bootp. The Switch
800T allows one outbound and one inbound Telnet session to be running
simultaneously.
Console access can be limited by setting Manager-level and Operator-level
passwords.
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Using the Console Interface
Starting and Ending a Console Session
Starting and Ending a Console Session
No te
This manual assumes that either a terminal device is already configured and
connected to your Switch 800T (as described in chapter 1, “Installation”) or
that you have already enabled Telnet access to the switch. (To enable Telnet
access, refer to “Console Features” on page 3-17.)
How To Star t a Console Session:
1. Start your PC terminal emulator, terminal, or Telnet session on a remote
terminal device.
2. Do one of the following:
•
•
If you are using Telnet, go to the next step.
If you are using a PC terminal emulator or a terminal, you should then
see the following prompt:
Waiting for speed sense. Press <enter> to continue.
Note: If the console displays a series of random and/or unread-
able characters instead of the above prompt, the Baud Rate
setting for the terminal may be different from that of the console
interface. The switch’s autosensing feature remedies this prob-
lem when you press a key.
Press [Enter] and go to the next step.
3. The display then briefly displays a message indicating the baud rate at
which the serial interface (Console RS-232 port) is operating, followed by
the copyright screen. Do one of the following:
•
If a password has been set, the Password prompt appears. Type the
password and press [Enter] to display the Main Menu (figure 2-1).
•
If no password has been set, you will see this prompt:
Press any key to continue.
Press [Enter] to display the Main Menu (figure 2-1).
If there is any system-down information to report, the switch displays it
in this step and in the Event Log.
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Using the Console Interface
Starting and Ending a Console Session
Figure 2-1. The Main Menu
page 2-4.
How To End a Console Session:
1. If you have not made configuration changes in the current session, go to
step 3.
2. Configuration changes requiring a reboot of the switch are indicated by
an asterisk (*) next to the configured item in the Configuration menu. (See
“Rebooting To Activate Configuration Changes” on page 2-11) If you have
made configuration changes that require a reboot of the switch in order
to take effect:
a. Return to the Main Menu.
b. Use the arrow keys ( [<], [>] , [v], and [^] ) to highlight Reboot Switch
in the Main Menu and press [Enter] to reboot.
3. Do one of the following:
•
If you have accessed the switch through a direct connection from a
terminal device, exit from the terminal application.
•
If you have accessed the switch through Telnet or a modem connec-
tion:
i. Return to the Main Menu.
ii. Highlight LOGOUT in the Main Menu and press [Enter].
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Using the Console Interface
Main Menu Features
Main Menu Features
The Main Menu (figure 2-1 on page 2-3) gives you access to these console
interface features:
• Status and Counters: Displays information on the switch,
individual ports, the address tables, protocols and spanning tree.
(Refer to chapter 4, “Monitoring and Analyzing Switch Operation from
the Console”.)
• Event Log: Enables you to read progress and error messages that
are useful for checking and troubleshooting switch operation. A
listing of Event Log messages is included on the CD shipped with your
switch. (Refer to “Event Log” on page 4-15.)
• Configuration: Enables you to display the current configuration
settings and to reconfigure individual parameters. (Refer to chapter
3, “Configuring the Switch”.)
• LOGOUT: Disconnects Telnet or modem access to the switch. (Refer
to “How To End a Console Session” on page 2-3.)
• Advanced Commands: Provides access to a set of system manage-
ment, monitoring, and troubleshooting commands. (Refer to chapter
6, “Using the Advanced Commands”.)
• Set Passwords: Enables you to set Operator and Manager pass-
words to help restrict who has access to the console interface. (Refer
to “Using Password Security” on page 2-7.)
• Download OS: Enables you to download a new software version to
t h e s w i t c h . ( R e f e r t o c h a p t e r 8 , “ F i l e T r a n s f e r s ” . )
• Reboot Switch: Performs a software reboot, which is required (in
some cases) to activate configuration changes that have been made.
(Refer to “Rebooting To Activate Configuration Changes” on page
2-11.)
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Using the Console Interface
Screen Structure and Navigation
Screen Structure and Navigation
Console screens include these three elements:
■
■
■
Parameter fields and/or read-only information such as statistics
Navigation and configuration actions, such as Save, Edit, and Cancel
Help banner to describe navigation options and individual parameters.
For example, in the System configuration screen:
SystemName
Parameter Fields
Actions Line
Help Describing Each of the
Items in the Parameter Menu
Help Banner
Describing the
Selected Action
(inthis Case, the
Cancel Option)
Navigation Instructions
Figure 2-2. Elements of Screen Structure
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Using the Console Interface
Screen Structure and Navigation
Table 2-1. How To Navigate in the Console
Task:
Actions:
Execute an action from an
Use either of the following methods:
“Actions-[>] menu:
■
Use the arrow keys ( [<] , [>] , [v] , or [^] ) to
highlight the action you want to execute, then
press [Enter].
■
Press the key corresponding to the capital letter
in the action name. For example, in a configura-
tion menu, press [E] to begin editing parameter
values.
Reconfigure (edit) a parameter 1. Select a configuration area, such as System. (See
setting or a field:
figure 2-2.)
2. Press [E] (for Edit on the Actions line).
3. Use [Tab] or the arrow keys ([<],[>], [^], or [v])to highlight
the item or field.
4. Do one of the following:
•
If the parameter has preconfigured values, use the
Space bar to select a new option
•
If there are no preconfigured values, type in a value.
5. Ifyou want tochange another parametervalue, return to
step 3.
6. If you're finished editing parameters in the displayed
screen, press [Enter] and do one of the following:
•
Tosave anyconfigurationchanges youhave made (or
ifyou have made no changes), press [S] (for the Save
action).
•
To exit from the screen without saving any changes
that you have made, press [C] (for Cancel).
Note: Some parameter changes are activated when you
execute Save, and it is therefore not necessarytoreboot
the switchafter making these changes. But ifan asterisk
appears next to any menu item you reconfigure, it is
necessaryto reboot the switch toimplement the change.
In this case, rebooting should be done after you have
made all desired changes and then returned to the Main
Menu.
7. When you are finished editing parameters, return to the
Main Menu.
8. If necessary, reboot the switch by highlighting Reboot
Switch and pressing [Enter]. (Refer to the Note, above.)
Exit from a read-only screen.
Press [B] (for the Backaction).
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Using the Console Interface
Using Password Security
Using Password Security
There are two levels of console access: Manager and Operator. For security,
you can set a password on each of these levels.
Level
Actions Permitted
Manager: Access to all console interface areas. This is the default level. (That is, if a
Manager password has not been set prior to starting the current console
session, then anyone having access to the console can access any area of
the console interface.)
Operator:
Access to the Status and Counters, Event Log, and minimal Configuration
areas for display only.
Use of the LOGOUT command.
On the Operator level, the Command Prompt, Set Passwords, Download OS,
and Reboot options are not available in the Main menu.
To use password security:
1. Set a Manager password (and an Operator password, if applicable for your
system).
2. Exit from the current console session. A Manager password will now be
needed for full access to the console.
If you do steps 1 and 2, above, then the next time a console session is started,
the console interface will prompt for a password. Assuming that both a
Manager password and an Operator password have been set, the level of
access to the console interface will be determined by which password is
entered in response to the prompt.
If you set a Manager password, you may also want to configure the
Connection Inactivity Timeparameter in the Serial Link configuration
screen (page 3-16). This causes the console session to end after the specified
period of inactivity, thus giving you added security against unauthorized
console access. (Once a Manager password is set and the console session is
ended, access to the full console interface for any subsequent sessions
requires the Manager password to be entered.)
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Using the Console Interface
Using Password Security
No te
If there is only a Manager password set (with no Operator password), and the
Manager password is not entered correctly when the console session begins,
the switch operates on the Operator level.
If there are both a Manager password and an Operator password, but neither
is entered correctly, access to the console will be denied.
If a Manager password is not set, anyone having access to the console
interface can operate the console with full manager privileges, regardless of
whether an Operator password is set.
Passwords are case-sensitive.
The rest of this section covers how to:
■
Set a Password
■
■
Delete a Password
Recover from a Lost Password
To set Manager and Operat or passwords:.
1. From the Main menu select Set Passwords. This screen appears:
Figure 2-3. The Set Password Screen
2. To set a new password:
a. Select Set Manager Password or Set Operator Password.
You will then be prompted with Enter new password.
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Using the Console Interface
Using Password Security
b. Type a password of up to 16 characters and press [Enter]. (Remember
that passwords are case-sensitive.)
c. When prompted with Enter new password again, retype the
new password and press [Enter].
d. To set another password, return to step 2a. Otherwise, go to step 3.
3. Select Return to Main Menu to exit from the Set Password screen.
After a password is set, if you use LOGOUT or reboot or reset the Switch 800T,
you will be prompted to enter the password to start a new console session.
To Delete Password Protect ion ( Including Recovery from a Lost
Password) : This procedure deletes both passwords (Manager and Opera-
tor). If you have physical access to the switch, press the Config Clear button
earlier in this chapter. If you do not have physical access to the switch, you
will need the Manager password:
1. Enter the console at the Manager level.
2. From the Main menu select Set Passwords. You will then see the screen
shown in figure 2-3.
3. Select Delete Password Protection. You will then see the following
prompt:
Continue Deletion of password protection? No
4. Press the Space bar or press [Y] to select Yes, then press [Enter].
5. Press [Enter] to clear the Password protection message.
6. Select Return to Main Menu to exit from the Set Password screen.
To Recover from a Lost Manager Password:
If you cannot start a console session at the manager level because of a lost
Manager password, you can clear the password by getting physical access to
the switch and pressing and holding the Config Clear button for at least one
second.
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Using the Console Interface
Rebooting the Switch
Rebooting the Switch
Rebooting the switch terminates the current console session and performs a
reset of the operating system. Some of the reasons for performing a reboot
include:
■
Activating certain configuration changes that require a reboot
Resetting statistical counters to zero
■
To Reboot the switch, use the Reboot Switchoption in the Main menu. (If
a Manager password has been previously set, Reboot Switchappears only
if this password is entered at the beginning of the console session.)
The Reboot Switch Option
Figure 2-4. The Reboot Switch Option in the Main Menu
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Using the Console Interface
Rebooting the Switch
Reboot ing To Activate Configur at ion Changes. Configuration changes
for some parameters become effective as soon as you save them. However,
you must reboot the switch in order to implement any changes to any
parameters in the following areas:
■
■
■
■
■
■
IPX Service
Internet (IP) Service
Serial Link
Console Parameters
New VLAN Names
System Parameters
If configuration changes requiring a reboot have been made, the switch
displays an asterisk next to the configuration menu item in which the change
has been made. For example, if you change and save parameter values for the
switch’s IP configuration, the need for rebooting the switch would be
indicated by an asterisk appearing in the following screen:
Asterisk indicates a
configuration change
that requires a reboot
in order to take effect.
Reminder to reboot the switch to
activate configuration changes.
Figure 2-5. Example of a Configuration Change Requiring a Reboot
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Using the Console Interface
Resetting the Switch
Resetting the Switch
Resetting requires physical access to the front of the Switch 800T. There are
two levels of reset:
■
Har dware reset : Momentarily interrupts switch operation, performs a
complete hardware self-test. This also clears the Event Log.
■
Configurat ion reset : This is a drastic action that interrupts switch
operation, clears any passwords, clears the event log, performs a com-
plete self-test, and reboots the switch in its factory default configuration.
You should consider performing a configuration reset only if you want all
configurable parameters reset to the factory default values.
To perform a har dware or configurat ion reset: Refer to the table on page
D-5 in appendix D, “Switch Reference”.
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3
Configuring the Switch
Overview
This chapter provides an overview of the Switch 800T configuration features.
In its factory default configuration, the Switch 800T automatically operates as
a multiport learning bridge with network connectivity provided by the
particular modules that you have installed. However, to “fine-tune” your
switch for the specific performance and security needs in your network, you
the console user interface.
■
■
■
■
■
■
■
■
■
■
■
■
■
■
System (page 3-5)
Ports (page 3-6)
IPX Service (page 3-7)
SNMP Communities (page 3-13)
Trap Receivers (page 3-15)
IP Multicast (IGMP) Service (page 3-12)
Serial Link (page 3-16)
Console (page 3-17)
Spanning Tree (page 3-21)
Traffic/Security Filters (page 3-22)
Virtual LAN (VLAN) (page 3-11)
Network Monitoring Port (page 3-18)
Automatic Broadcast Control (ABC) (page 3-23)
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Configuring the Switch
Overview
No te
In the factory default configuration, the Spanning Tree Protocol (STP) is off.
However, if the topology of your network includes any redundant loops
between switches or bridges, you should enable STP. See “Spanning Tree”
(page 3-21).
To get Help on individual par amet er descr ipt ions. In allscreens except
the Advance Commands screen there is a Help option in the Actionsmenu.
Whenever the Actionsmenu is active, you can display Help for that screen’s
parameters by pressing [H]. (The Actions menu is active whenever any of the
choices in the Action menu is highlighted.) For example:
Highlight on any item in the
Actions menu indicates that
the Actions menu is active.
Banner
Pressing [H] or highlighting
Help and pressing [Enter]
displays Help for the
parameters listedinthe upper
part of the screen.
Figure 3-1. Example Showing How To Display Help
To get Help on t he act ions or data fields in each screen: Use the arrow
keys ( [<], [>], [^], or [v]) to select an action or data field. The banner under the
action items will describe the currently selected action or data field. (For
guidance in how to navigate in a configuration screen, see the instructions
provided at the bottom of the screen, or refer to “Screen Structure and
Navigation” on page 2-5.)
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Configuring the Switch
Configurable Features
Configurable Features
How To Access t he Swit ch 800T Configur at ion: Use this procedure to
access the switch’s configurable features.
1. Begin at the Main Menu and select Configuration (figure 3-2):
Access to Configurable Features
Figure 3-2. Select “Configuration” in the Main Menu
After you select Configuration, the Configuration menu appears as
shown in (figure 3-3).
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Configuring the Switch
Configurable Features
Figure 3-3. The Configuration Menu
2. Use the arrow keys ( [<], [>], [^], and [v] ) to highlight the configuration
topic you want, then press [Enter].
3. Refer to the appropriate sections in the remainder of this chapter for
information on configuring specific features.
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Configuring the Switch
Configurable Features
System Features
Configures basic switch management information, including system data,
address aging, and time zone parameters:
System Name
Figure 3-4. The System Configuration Screen (Default Values)
No te
To help simplify administration, it is recommended that you configure
System Name to a character string that is meaningful within your system.
To set the time and date, set the Time Protocol parameters under “Internet
(IP) Service Features” (page 3-9) for your time server or use the time and date
commands described in chapter 6.
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Configuring the Switch
Configurable Features
Port Features
Configures the operating state for each port and optionally assigns selected
ports to a port trunk. (For more on port trunking, refer to chapter 7.) Also
optionally enables you to restrict the amount of broadcast traffic on the port.
The read-only fields in this screen display the port names and port types.
Read-Only Fields
Figure 3-5. Example of the Port Configuration Screen
Port names in the configuration correspond to port number on the front of the
switch.
No te
Broadcast limit (the Bcast Limit parameter) can be set for all ports in the
switch (or VLAN, if VLANs are configured) from the Automatic Broadcast
Control (ABC) screen (page 7-30 and following) if ABC is enabled. Setting the
broadcast limit (Bcast Limit) in the above screen is on a per-port basis and
overrides any settings done in Automatic Broadcast Control.
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Configuring the Switch
Configurable Features
IPX Service Features
Enables the switch to be managed in an IPX network. The Switch 800T
automatically enables IPX, configures the IPX node address, and learns the
IPX network number. Thus, in the factory default configuration, IPX is auto-
matically enabled for the switch.
No te
In this case, the factory-assigned node address is displayed as shown below.
(The switch automatically detects the IPX network number.)
Read-Only Field
Appears if Gateway
Encap Configured
Figure 3-6. The IPX Service Configuration Screen
No te
If VLANs are configured, the above parameters appear in a horizontally
formatted screen.
You can also configure an IPX gateway frame encapsulation type and gateway
node so that the switch can be managed from a remote IPX network.
If VLANs are configured, the switch can automatically learn the IPX network
number of each attached VLAN. For more on VLANs, refer to chapter 7,
“Advanced Concepts”.
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Configuring the Switch
Configurable Features
( Optional) How To Configure IPX for Management from a Remot e IPX
Net wor k. In the factory default, IPX is already enabled. If you want to
enable management from a remote IPX network, you must configure the
gateway encapsulation type and gateway node.
1. From the Configuration screen, select IPX Service to display the above
screen.
2. If the IPX Enabled parameter is not already set to “Yes” (the factory
default), then select this parameter and press the Space bar to select Yes.
3. Select the Gateway Encap field and use the Space bar to select the
appropriate gateway encapsulation for the gateway device.
4. Press [v] to display and select the Gateway Node field.
5. Type the IPX node address (MAC address) of the gateway device that is
using the encapsulation defined in step 3.
6. Press [Enter], then [S] (for Save).
7. Return to the Main Menu and reboot the switch.
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Configuring the Switch
Configurable Features
Internet (IP) Service Features
Enables you to configure:
■
IP address, subnet mask, and (optionally) the gateway address for the
switch so that it can be managed in an IP network
■
The time server information (used if you want the switch to get its time
information from another device operating as a Timep server)
You can manually configure an IP address, subnet mask, and a Gateway IP
address by setting the IP Config parameter to Manual. Or, you can use
Bootp to configure IP for the switch from a Bootp server. In this case you must
also configure your Bootp server accordingly. If you plan to use Bootp, refer
to appendix E, “Bootp Operation”. Otherwise, set the IP Config parameter
to Manualand then manually enter the IP address and subnet mask you want
for the Switch 800T.
The default setting for Time
Protocol Enabled is No.
Setting it to Yes as shown
here,thenpressing[v]or[Tab]
causes the Timep Server
Address and Timep Poll
Interval parameters to
appear. For descriptions of
these parameters, refer to
the online Help for this
screen.
Figure 3-7. Example of the IP Service Configuration Screen
If VLANs are configured, then enable IP on a “per VLAN” basis. This is because
each VLAN is a separate network and requires a unique IP address, plus a
subnet mask. A gateway (IP) address is optional. For more on VLANs, refer
to “Virtual LAN (VLAN) Features” on page 3-11 and in chapter 7, “Advanced
Concepts”.
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Configuring the Switch
Configurable Features
How To Manually Configur e for IP.
1. From the Configuration screen, select Internet (IP) Serviceto
display the above screen.
2. Press [E] (for Edit).
3. Select the IP Config field and use the Space bar to select Manual.
4. Select the IP Addressfield and enter the IP address you want to assign
to the switch.
5. Select the Subnet Mask field and enter the subnet mask for the IP
address.
6. If you want to reach off-subnet destinations, select the Gateway field
and enter the IP address of the gateway router.
7. Press [Enter], then [S] (for Save).
8. Return to the Main Menu and reboot the switch.
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Configuring the Switch
Configurable Features
Virtual LAN (VLAN) Features
Enables you to create up to eight port-based VLANs. A VLAN is a group of
ports designated by the Switch 800T as belonging to the same broadcast
domain. This feature enables you to configure port-based virtual LANs to help
isolate broadcast traffic and increase security. Typically, if VLANs are used,
all ports carrying traffic for a particular subnet address should be configured
to the same VLAN. For more on when, why, and how to use VLANs, refer to
“Virtual LANS (VLANs)” on page 7-14.
In the factory default state, VLANs are not configured. All ports belong to the
same broadcast/multicast domain. This domain is called “DEFAULT_VLAN”
and appears in the “VLAN Names” screen. You can create up to seven addi-
tional VLANs by adding new VLAN names, and then assigning one or more
ports to each VLAN. (The switch accepts a maximum of eight VLANs, includ-
ing the default VLAN.) Note that each port can be assigned to only one VLAN.
DEFAULT_VLAN can be renamed, but not deleted. Any ports not specifically
assigned to another VLAN will remain assigned to DEFAULT_VLAN.
No te
Before you delete a VLAN, you must re-assign its ports to another VLAN.
When VLANs are used, and are managed from an SNMP workstation, you
should configure the IPX and/or IP services for each VLAN. (Refer to pages
3-7 and 3-9.)
Spanning Tree protocol (STP), ABC, IGMP, and some other features operate
on a “per VLAN” basis. This means you must configure such features sepa-
rately for each VLAN in which you want them to operate.
For more information on VLANs and how to configure them, refer to “Virtual
LANs (VLANs)” on page 7-14.
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Configuring the Switch
Configurable Features
IP Multicast (IGMP) Service Features—Multimedia
Traffic Control
The IGMP (Internet Group Management Protocol) feature helps to reduce
network congestion and improve security by reducing unnecessary multicast
traffic on a per-port basis. This is useful in multimedia applications such as
LAN TV, desktop conferencing, and collaborative computing, where there is
multipoint communication; that is, communication from one to many hosts,
or communication originating from many hosts and destined for many other
hosts. In such multipoint applications, IGMP will be configured on the hosts,
and multicast traffic will be generated by one or more servers (inside or
outside of the local network). Switches in the network (such as the Switch
800T or the B-version of the Switch 2000) can then be configured to direct the
multicast traffic to only the ports where needed.
In the factory default state (IGMP disabled), the switch forwards all IGMP
traffic. When IGMP is enabled, you can configure the switch to any of the
following states on a per-port basis:
■
Automatic (the default): Causes the switch to interpret IGMP packets and
to filter IP multicast traffic based on the IGMP packet information for that
port.
■
■
Blocking: Causes the switch to drop all IGMP transmissions received and
block all outgoing IP Multicast packets for that port.
Forwarding: Causes the switch to forward all IGMP and IP multicast
transmissions through the port.
For more information on IGMP and how to configure it, refer to “IP Multicast
(IGMP)” on 7-23.
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Configuring the Switch
Configurable Features
SNMP Communities Features
Enables you to add, edit, or delete SNMP communities. Use this feature if you
expect to manage the switch from an SNMP management station. You can
configure up to five SNMP communities, each with either an operator-level or
a manager-level view, and either restricted or unrestricted write access. (For
more on this topic, refer to chapter 5, “Using SNMP To Monitor and Manage
the Switch”, and to the online Help.)
This screen gives an overview of the SNMP communities that are
currently configured. All fields in this screen are read-only.
Addand Edit options are usedto modify
the SNMP options. See figure 3-9.
Figure 3-8. The SNMP Communities Screen (Default Values)
Ca u ti o n
Deleting the community named “public” disables many network management
functions (such as auto-discovery, traffic monitoring, and threshold setting).
If security for network management is a concern, it is recommended that you
change the write access for the “public” community to “Restricted”.
How To Configur e for SNMP Communities.
Ensure that the switch has been configured for IP and/or IPX.
1. From the Configuration screen, select SNMP Communities to display a
screen similar to the one above.
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Configuring the Switch
Configurable Features
2. Press [A] (for Add) to display the following screen:
If you are adding a
community, the fields in
this screen are blank.
Type the value for
this field
If you are editing an
existing community, the
values for the currently
selected Community
appear in the fields.
use the Space bar
to select values for
other fields
Figure 3-9. The SNMP Add or Edit Screen
No te
In the default configuration, no manager addresses are configured. In this
case, all management stations using the correct community name may access
the switch with the corresponding View and Access levels. If you want to
restrict access to one or more specific nodes, you can enter up to ten IP and/
or IPX addresses of such nodes into the Manager Address field. Entering one
or more IP or IPX addresses in the Manager Address field limits access to only
those addresses.
3. Enter the appropriate value in each of the above fields (use the [Tab] key
to move from one field to the next).
4. Press [Enter], then [S] (for Save).
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Configuring the Switch
Configurable Features
Trap Receivers Features
Enables you to configure up to ten IP and/or IPX management stations (trap
receivers) to receive SNMP trap packets sent from the switch. Trap packets
describe specific event types. (These events are the same as the log messages
displayed in the event log.) The protocol, address, and community define
which management stations receive the traps. An authentication trap is sent
and the Security LED on the front panel of the switch begins flashing if a
management station attempts an unauthorized access. (The ClearLED
command turns off the Security LED—page 6-6.) Check the event log to help
determine why the authentication trap was sent. (Refer to chapter 4 for
information on the event log.)
Figure 3-10. The Trap Receivers Configuration Screen (Default Values)
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Configuring the Switch
Configurable Features
Serial Link Features
Enables you to adjust the Console RS-232 configuration to customize the
connection with the PC, terminal, or modem you are using for console access.
Refer to the online Help for information on modem settings. Refer also to
“Console Features” on page 3-17.
Figure 3-11. The Serial Link Configuration Screen (Default Values)
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Configuring the Switch
Configurable Features
Console Features
Lets you enable or disable inbound Telnet access and control the types of
events displayed in the event log. Also specifies the terminal type and the
console screen refresh interval used by the statistics screens (that is, the
frequency with which statistics are updated on the statistics screens).
No te
“Inbound” Telnet is Telnet access to the switch console from another device.
“Outbound”Telnet, which is using Telnet through the switch console to access
another device, is always enabled as long as the switch has been configured
with a valid IP address. (To configure an IP address for the switch, refer to
“Internet (IP) Service Features” on page 3-9.) The switch supports one
inbound and one outbound Telnet session simultaneously.
Default Inbound
Telnet Setting
Figure 3-12. The Console Configuration Screen (Default Values)
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Configuring the Switch
Configurable Features
Network Monitoring Port Features
Lets you designate a port for monitoring traffic on one or more other ports or
on a VLAN configured on the switch. This is accomplished by copying all
traffic from the specified ports or VLAN to the designated monitoring port.
No te
If Automatic Broadcast Control (ABC) is configured and more than one port
is being monitored, then broadcast packets may be duplicated on the monitor
port.
How To Configur e for Monitoring: This procedure describes configuring
the switch for monitoring when monitoring is disabled. (If monitoring has
already been enabled, the screens will appear differently than shown in this
procedure.)
1. Select Network Monitoring Port from the Configuration screen.
2. In the Actions menu, press [E] (for Edit).
3. If monitoring is currently disabled (the default) then enable it by pressing
the Space bar (or [Y] ) to select Yes.
Enable Monitoring by
Setting this Parameter
to “Yes”
Figure 3-13. The Default Network Monitoring Configuration Screen
4. Press [v] to display a screen similar to the following and move the cursor
to the Monitoring Port parameter.
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Configuring the Switch
Configurable Features
Move the Cursor to
the Monitoring Port
Parameter
Figure 3-14. Example of Selecting a Monitoring Port
5. Press the Space bar to select which port to use for the monitoring port,
then press [v] to move to the Monitor parameter. (The default setting
is Ports, which you will use if you want to monitor one or more individual
ports on the switch.)
6. Do one of the following:
•
If you want to monitor individual ports, leave the Monitor param-
eter set to Ports and press [v] to move the cursor to the Action
column for the individual ports. Press the Space bar to select Mon-
one port to the next in the Action column.) When you are finished,
press [Enter], then press [S] (for Save) to save your changes and exit
from the screen.
•
If, instead of individual ports, you want to monitor all of the ports in
a VLAN, press the Space bar to select VLANin the Monitorparame-
ter, then press [v] to move to the VLANparameter (figure 3-15). Then
press the Space bar again to select the VLAN that you want to monitor.
When you are finished, press [Enter] , then press [S] (for Save) to save
your changes and exit from the screen.
7. Return to the Main Menu.
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Configuring the Switch
Configurable Features
Note:
This screen appears
instead of the one in
figure 3-14 if the
Monitor parameter is
set to VLAN
Example of a VLAN
Monitoring Parameter
Figure 3-15. Example of Selecting a VLAN to Monitor
No te
It is possible in networks with high traffic levels to copy more traffic to a
monitor port than the link can support. In this situation, some packets may
not be copied to the monitor port.
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Configuring the Switch
Configurable Features
Spanning Tree Features
Enables you to activate the IEEE 802.1d Spanning Tree Protocol (STP) and to
adjust spanning tree parameters. In the factory default, STP is off. Thus, if
there are any redundant paths (loops) between nodes in your network, you
should set the Spanning Tree Enabled parameter to Yes. This ensures that all
redundant ports (those providing backup parallel connections) are in a block-
ing state and not used to forward data. In the event of a topology change such
as a switch, bridge, or data link failure, STP develops a new spanning tree that
may result in changing some ports from the blocking state to the forwarding
state.
If VLANs are configured, then you can configure STP separately for each
VLAN.
Ca u ti o n
Because the switch automatically gives faster links a higher priority, the
default STP parameter settings are usually adequate for spanning tree
operation. Because incorrect STP settings can adversely affect network
performance, you should avoid making changes without having a strong
understanding of how STP operates. For more on STP, refer to chapter 7,
“Advanced Concepts”, and examine the IEEE 802.1d standard.
The switch automatically senses port identity and type, and automatically
defines port cost and priority for each type. The interface allows you to adjust
the Cost and Priority for each port, as well as the global STP parameter values
for the switch.
To configure STP, refer to “Spanning Tree Protocol (STP)” on page 7-2.
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Configuring the Switch
Configurable Features
Traffic/Security Filter Features
Enables you to control traffic and increase network security by creating filters
based on any of the following criteria:
■
■
■
■
Multicast address
Source port only
Source MAC address and source port
Protocol frame type
•
•
•
•
•
•
•
•
IP (Ethernet or 802.3 SAP)
ARP
DEC LAT
AppleTalk
SNA
NetBIOS
IPX (Ethernet or 802.3 SAP)
VINES IP or ECHO
If you are using VLANs, they will affect source port and source MAC filter
configuration. For more information on filtering, using filters with VLANs, and
configuring filters, refer to “Filters and Security” on page 7-8.
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Configuring the Switch
Configurable Features
Automatic Broadcast Control (ABC) Features—Layer 3
Switching
ABC reduces the amount of IP and/or IPX broadcast traffic on a network by
enabling the switch to serve as a proxy for the ultimate destination of broad-
cast IP ARP and RIP packets, and IPX NSQ, and RIP or SAP packets. This
reduces the number of ports over which IP and/or IPX broadcasts are sent,
increases the amount of network bandwidth available for other purposes, and
can reduce the need for routers within a network. These factors can lower
VLANs—broadcast domains—still requires a router, ABC functions within
VLANs and, by using multiple subnets per VLAN (multi-netting), can reduce
or eliminate the need for routers within the VLAN.)
When enabled, ABC also allows you to set the broadcast limit parameter
(Bcast Limit) in the Port Configuration screen (figure 3-5) for all ports on
the switch (or all ports on the VLAN, if VLANs are configured and ABC is
enabled for the VLAN).
In the factory default state, ABC is disabled. For more information on ABC
and how to configure it, refer to “Automatic Broadcast Control (ABC)”on page
7-30.
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4
Monitoring and Analyzing Switch Operation
from the Console
Overview
The Main Menu in the switch’s console interface gives you access to the
following sources of read-only data for helping you to monitor, analyze, and
troubleshoot switch operation:
Table 4-1. Read-Only Monitoring and Analyzing Features
Main Menu Data Type
Item
Purpose
Status and Switch Information
Lists switch-level operating information.
Counters
Menus
Port Status
Displays the operational status of each port.
Summarizes port activity.
Port Counters
Address (forwarding) Table Lists the MAC addresses ofnodes the switch has
detected on the network, along with the
corresponding switch port.
Port Address Table
Lists the MAC addresses that the switch has
learned from the selected port.
Spanning Tree Information Lists Spanning Tree data for the switch and for
individual ports. If VLANs are configured, reports
on a per-VLAN basis.
IP Multicast (IGMP) Status Lists IGMP groups, report, query, and type of
device access on ports. If VLANs are configured,
reports on a per-VLAN basis.
Automatic Broadcast
If VLANs are configured, reports on a per-VLAN
Control (ABC) Information basis.
Event Log
Lists event messages generated by the switch.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Status and Counters Menu
Select Status and Countersfrom the Main Menu to display the Status
and Counters menu:
Figure 4-1. The Status and Counters Menu
Each of the above menu items accesses the read-only screens described on
the following pages. Refer to the online help for a description of the entries
displayed in these screens.
No te
Spanning Tree, IP Multicast (IGMP), and Automatic Broadcast Control (ABC)
are reported on a per-VLAN basis. For these features you will be prompted to
select a VLAN if multiple VLANs are configured.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Switch Information
Figure 4-2. Example of Switch Information
This screen tells you which version of the OS (operating system) and ROM
(low-level startup code located in read-only memory) the switch is using, and
dynamically indicates how individual switch resources are being used.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Port Status
Figure 4-3. Example of Port Status
For each port, this screen tells you the type of port and media, whether the
port is enabled and up or down, and the port’s operating mode. (Included is
the port ID number to use for SNMP MIB access.)
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Port Counters
Figure 4-4. Example of Port Counters
This screen enables you to determine the traffic patterns for each port. Port
Counter features include:
■
■
■
Dynamic display of counters summarizing the traffic on each port since
the last reboot or reset
Option to reset the counters to zero (for the current console session). This
is useful for troubleshooting. Refer to the Note, below.
An option to display the link status, MAC address, and further port activity
details for a specific port ( Show details ).
No te
The Reset action resets the counter display to zero for the current session,
but does not affect the cumulative values in the actual hardware counters. (In
compliance with the SNMP standard, the values in the hardware counters are
not reset to zero unless you reboot the switch.) Thus, using the Reset action
resets the displayed counters to zero for the current session only. Exiting from
the console session and starting a new session restores the counter displays
to the accumulated values in the hardware counters.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
To view the elements that comprise the traffic on a particular port, highlight
that port number (figure 4-4), then select Show details. For example,
selecting port 1 displays a screen similar to figure 4-5, below.
Figure 4-5. Example of the Display for Show details on a Selected Port
This screen also includes the Resetaction. Refer to the note on page 4-5.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Address Table
Figure 4-6. Example of the Address Table
This screen lets you easily determine which switch port is being used to access
a specific device on the network. The listing includes:
■
The MAC addresses that the switch has learned from network devices
attached to the switch
■
The port on which each MAC address was learned
You can use the Searchaction at the bottom of the screen to locate a specific
device (MAC address).
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Port Address Table
This screen lets you easily determine which devices are attached to the
selected switch port by listing all of the MAC addresses detected on that port.
You can use the Searchaction at the bottom of the screen to determine
whether a specific device (MAC address) is connected to the selected port.
To use t he por t address t able:
1. Select Port Address Tablefrom the menu in the Status and Counters
screen.
Use the Space bar to select the port for
which you want to display the address table.
Figure 4-7. Example of How To Access the Port Address Table
2. When the Select Portprompt appears, press the Space bar to display
the port you want to examine, then press [Enter]. (See figure 4-7, above.)
Each port is identified by the sequential port numbers on the front of the
switch.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
In this example,several MAC addresses
accessed through port 1 appear in the
initial listing. To view any additional
addresses that maybe in the listing, use
the Next page action.
Figure 4-8. Example of a Port Address Table for a Specific Port
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Spanning Tree (STP) Information
No te
If multiple VLANs are configured on the switch, you will be prompted to select
a VLAN (by using the Space bar, then pressing [Enter]) to display this screen.
Figure 4-9. Example of Spanning Tree Information
Use this screen to determine current switch-level STP parameter settings and
statistics.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
You can use the Show portsaction at the bottom of the screen to display
port-level information and parameter settings for each port in the switch
(including port type, cost, priority, operating state, and designated bridge).
Figure 4-10. Example of STP Port Information
Ca u ti o n
Because incorrect STP settings can adversely affect network performance,
you should avoid making changes without having a strong understanding of
how STP operates. For more on STP, refer to “Spanning Tree Protocol (STP)”
on page 7-2.
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
IP Multicast (IGMP) Status
No te
If multiple VLANs are configured on the switch, you will be prompted to select
a VLAN (by using the Space bar, then pressing [Enter]) to display this screen.
This screen identifies the active IP multicast groups the switch has detected,
along with the number of report packets and query packets seen for each
group. It also indicates which port is used for connecting to the querier.
Figure 4-11. Example of IGMP Status Screen
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
You can also display the port status of the individual multicast groups. (That
is, you can display the ports, port types, and whether the IGMP devices
connected to the switch via the port are hosts, routers, or both.) To do so,
select the group from the above screen and press [S] for Showports. For
example, suppose you wanted to view the status of the IP multicast group
227.111.122.122 shown in the above screen. You would highlight the row
beginning with that group number, then press [S]. You would then see a screen
similar to the following:
Figure 4-12. Example of an IGMP Status Screen for a Selected Multicast Group
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Monitoring and Analyzing Switch Operation from the Console
Status and Counters Menu
Automatic Broadcast Control (ABC) Information
No te
If multiple VLANs are configured on the switch, you will be prompted to select
a VLAN (by using the Space bar, then pressing [Enter]) to display this screen.
This screen displays the number of IP ARP and IPX NSQ replies sent per port
and whether RIP and SAP packets are being forwarded or not forwarded per
port. If VLANs are configured, this data is on a per-VLAN basis.
Figure 4-13. Example of Automatic Broadcast Control (ABC) Screen
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Monitoring and Analyzing Switch Operation from the Console
Event Log
Event Log
The Event Log records operating events as single-line entries listed in chrono-
logical order. Each entry is composed of five fields:
Severity
Date
Time
System Module
Event Message
I 08/05/96 10:52:32 ports: port 1 enabled
Severity is one of the following codes:
I
W
C
D
(information) indicates routine events.
(warning) indicates that a service has behaved unexpectedly.
(critical) indicates that a severe switch error has occurred.
(debug) reserved for HP internal diagnostic information.
Date is the date in mm/dd/yy format that the entry was placed in the log.
Time is the time in hh:mm:ss format that the entry was placed in the log.
System Module is the internal module (such as “ports” for port manager) that
generated the log entry. If VLANs are configured, then a VLAN name also
appears for an event that is specific to an individual VLAN.
Event Message is a brief description of the operating event.
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Monitoring and Analyzing Switch Operation from the Console
Event Log
Ent ering and Navigat ing in t he Event Log Display. To enter the event
log, select Event Log from the Main menu.
Log Status Line
Range of Events in the Log
Range of Log Events Displayed
Figure 4-14. Example of an Event Log Display
To display various portions of the Event Log, either preceding or following
the currently visible portion, use either the actions listed at the bottom of the
display (Next page, Prev page, or End), or the keys described in the
following table:
Table 4-2. Event Log Control Keys
Key
[N]
[P]
[v]
[^]
[E]
[H]
Action
Advance the display by one page (next page).
Roll back the display by one page (previous page).
Advance display by one event (down one line).
Roll back display by one event (up one line).
Advance to the end of the log.
Display Help for the event log.
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Monitoring and Analyzing Switch Operation from the Console
Event Log
The event log holds up to 100 lines in chronological order, from the oldest to
the newest. Each line consists of one complete event message. Once the log
has received 100 entries, it discards the current oldest line each time a new
line is received. The event log window contains 20 lines and can be positioned
to any location in the log.
The log status line at the bottom of the display identifies where in the sequence
of event messages the display is currently positioned.
The event log will be erased if any of the following occurs:
■
■
■
The switch is reset using the Reset button.
Power to the switch is interrupted.
A new operating system is downloaded to the switch.
(The event log is not erased by using the Reboot Switch command in the
Main Menu.)
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5
Using SNMP To Monitor and Manage the
Switch
You can manage the switch via SNMP from a network management station.
(The switch supports SNMP v1 and SNMP v2c, except as noted below for
SNMP v2 Notifications.) If you are using IP, you must either configure the
switch with the appropriate IP address or, if you are using Bootp to configure
the switch, ensure that the Bootp process provides the IP address. (The IPX
address is automatically configured.) If multiple VLANs are configured, each
VLAN interface should have its own IP or IPX network address. This chapter
provides an overview of SNMP management for the switch and describes the
configuration process for the various features. For parameter-specific infor-
mation, refer to the Help provided in the individual configuration screens.
SNMP Management
SNMP management features on the switch include:
■
Security via configuration of SNMP communities
■
Event reporting via SNMP traps and RMON (SNMP v2 Notifications are
not supported at this time.)
■
■
Managing the switch with a network management tool such as HP
AdvanceStack Assistant
Monitoring data normally associated with the SNMP agent (“Get” opera-
tions). Supported Standard MIBs include:
•
•
•
•
•
•
•
Bridge MIB (RFC 1493)
Etherlike MIB (RFC 1650)
Ethernet MAU MIB (RFC 1515)
Interfaces Evolution MIB (RFC 1573)
Novell Standard IPX MIB (ipx.mib)
RMON MIB (RFC 1757)—etherstats, events, alarms, and history
SNMP MIB-II (RFC 1213)
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Using SNMP To Monitor and Manage the Switch
SNMP Management
HP Proprietary MIBs include:
•
Statistics for message and packet buffers, tcp, telnet, and timep
(netswtst.mib)
•
•
•
•
Port counters, forwarding table, and CPU statistics (stat.mib)
tftp download (downld.mib)
802.12 (100VG) information (vg.mib)
Integrated Communications Facility Authentication Manager and
SNMP communities (icf.mib)
•
•
HP AdvanceStack Switch 800T configuration (config.mib)
HP VLAN configuration information (vlan.mib) supporting
hpVlanGeneralGroup
•
•
•
HP EASE MIB version 4 to allow EASE sampling
HP Linktest MIB for basic device management (linktest.mib)
HP ICF Linktest MIB for link test features (icfbasic.mib)
The switch SNMP agent also uses certain variables that are included in a
Hewlett-Packard proprietary MIB file you can add to the SNMP database
in your network management tool. You can copy the MIB file from the
compact disk (CD) shipped with the switch, or from following World Wide
Web site:
http://www.hp.com/go/network_city
For more information, refer to the card at the front of this manual.
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Using SNMP To Monitor and Manage the Switch
SNMP Configuration Process
SNMP Configuration Process
The general steps to configuring for SNMP access to the preceding features
are:
1. From the Main menu, select Configuration.
2. Enable and configure an IP address for the switch, including any neces-
sary gateways. An IPX address is automatically configured. (For more on
configuring IPX and IP, refer to page 3-7 and page 3-9.)
3. Configure the appropriate SNMP communities. (The “public” community
exists by default and is used by HP’s network management applications.)
(For more on configuring SNMP communities, refer to page 3-13.)
4. Configure the appropriate trap receivers. (For more on configuring trap
receivers, refer to page 3-15.)
In many networks, manager addresses are not used. In this case, all manage-
ment stations using the correct community name may access this device with
the View and Access levels that have been set for that community. If you want
to restrict access to one or more specific nodes, you can enter up to 10 IP and/
or IPX addresses of such nodes into the Manager Address field. Configuring
one or more IP or IPX addresses in the Manager Address field means that
only the network management stations at those addresses are authorized to
use the community name to access the switch.
Ca u ti o n
Deleting the community named “public” disables many network management
functions (such as auto-discovery, traffic monitoring, and threshold setting).
If security for network management is a concern, it is recommended that you
change the write access for the “public” community to “Restricted”.
No te
SNMP community and trap receiver configurations are activated when saved.
Rebooting the switch is not necessary unless you have also configured other
parameters that require rebooting in order to be activated. (For more on when
it is necessary to reboot, refer to “Rebooting the Switch” on page 2-10.)
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6
Using the Advanced Commands
Overview
The Advanced Commands , which are accessed from the Main Menu, gives
you access to the following system management commands:
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Help
Date
Time
History
Ping
IpxPing
LinkTest
Telnet
VLAN
ClearLED
Config
Delete
GetMIB
SetMIB
WalkMIB
Exit
Get/Put (TFTP)
ZGet/ZPut (ZMODEM)
Version
Log
!
Repeat
Page
Print
Redo
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Using the Advanced Commands
Overview
How To Use the Command Prompt :
1. To access the command prompt, use the arrow keys to highlight Advanced
Commandsin the Main Menu and press [Enter].
Select the Advanced Commands Prompt
Figure 6-1. Selecting the Command Prompt
2. Do the following:
•
•
If there are no VLANs (virtual LANs) configured, go to step 3.
If VLANs are configured, the prompt displays the name of the default,
or first VLAN, then asks you to select the VLAN in which to operate.
Use the Space bar to select the VLAN in which you want to operate,
then press [Enter].
3. The command prompt appears near the bottom of the screen. The text in
the prompt matches the System Name parameter. (If there are multiple
VLANs configured, then the text in the prompt matches the name of the
VLAN in which the command prompt is operating.) For example, in the
factory default configuration (no system name or VLANs configured), the
command prompt looks like this:
DEFAULT_CONFIG:
4. Type in the command you want to execute and press [Enter]. For example,
to set the time to 9:55 a.m. you would execute the following command:
DEFAULT_CONFIG: time 9:55[Enter]
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Using the Advanced Commands
Overview
How To Exit from t he command prompt :
Type exit and press [Enter] to return to the Main Menu.
How To List Available Commands:
At the command prompt, type h and press [Enter].
When you see — MORE— at the bottom of the screen:
■
■
To advance the display one line at a time, use [Enter].
To advance the display one screen at a time, use the Space bar.
How To Stop the Help List ing: Press [Q].
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Using the Advanced Commands
Commands
Commands
To execute any of these commands, select Advanced Commandsfrom the
Main Menu, type the command, and press [Enter].
Conventions:
■
■
■
Commands are shown in the normal typeface.
Required parameters are shown in italics.
Optional parameters are shown in italics, with brackets ( […] ).
For example:
Command
ping
Required Parameters
Optional Parameters
ip-addr
[repetitions] [timeout]
Command Syntax
H (help)
Description
Lists the commands available at the command prompt.
date [mm/dd/yy]
Without parameters, displays the date and time currently held by the switch.
With parameters in the month/date/year format, resets the date.
time [hh:mm:ss]
history
Without parameters, displays the date and time currently held by the switch.
With parameters in the hours:minutes:seconds format, resets the time.
displays the times andreasons for the lastfour occasions onwhichthe switch
was rebooted or restarted.
ping ip-addr [repetitions] [timeout]
Sends an Internet Control Message Protocol (ICMP) echo request message
toa specific IPaddress, as a network-layertestofthe reachabilityofthe node.
Pingdoes not support loopback (pingingthis switch) or broadcast addresses.
The switch must have IP configured. After transmitting the request message
to the node, the switch waits for a response. If it is received within the
specified or default timeout interval, the console displays a message
indicating that the target is “alive”. If an echo response is not received within
the specified or default timeout interval, the console displays a message
indicating that the target did not respond.
where:
ip-addr is the IP address of the
target node in dotted decimal
notation.
repetitions is the number of
times to repeat the echo request.
Default: send packet once.
VLANs: If multiple VLANs are configured, the Ping command sends requests
to the ports in the VLAN environment specified when the command prompt
was selected.
timeout is how many seconds to
wait for a response.
Default: 5 seconds.
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Using the Advanced Commands
Commands
Command Syntax
Description
ipxping ipx-addr [repetitions] [timeout]
[size]
where:
Sends an IPX echo request message to a specific IPX address, as a network-
layer test of the reachability of the node. The switch must have IPX enabled.
After transmitting the request message to the node, the switch waits for a
response. If it is received within the specified or default timeout interval, the
console displays a message indicating that the target is “alive”. If an echo
response is not received within the specified or default timeout interval, the
console displays a message indicating that the target did not respond.
ipx-addr is the IPX address of the
target node in this format:
network number :mac address
repetitions is the number of
times to repeat the echo request.
Default: send packet once.
VLANs: If multiple VLANs are configured, ipxping sends requests to the ports
in the VLAN environment specified when the command prompt was selected.
timeout is how many seconds to
wait for a response.
Default: 5 seconds.
size is the size in bytes of the data to be
sent.
Default: 40 bytes.
linktest mac_addr [count] [delay]
Verifies communication to a MAC address on the LAN. Sends an 802.2 Test
Packet to a specific target node on a network in the VLAN environment
specified in the command prompt. The target node must be able to respond
to an 802.2 Test Packet with an 802.2 Test Response packet in order for the
test to work. (HP managed hubs, bridges, routers, and switches automatically
respond to 802.2 Test Packets. Most HP LAN adapters can be configured to
operate as a responder.
where:
mac_addr is the MAC address of
the target node in 12-character
hexadecimal format.
count is the number of test
packets to send.
Default: 1 packet
VLANs: If multiple VLANs are configured, the linktest command sends
requests to the nodes in the VLAN environment specified when the command
prompt was selected.
delay is how many seconds to
wait for a response to each packet.
Default: 2 seconds.
telnet ip-addr
Used to establish a Transmission Control Protocol (TCP) virtual terminal
connection to a remote node, allowing you to interact with the remote node's
interface. IP must be configured, and the remote node must have Telnet
where:
ip-addr is the IP address of the target service enabled. The Switch 800T supports one inbound and one outbound
node in dotted decimal notation.
Telnet session. In the factory default configuration, the Inbound Telnet
Enabled parameter is set to Yes. (To change the Inbound Telnet Enabled
parameter, use the Console configuration screen,which is accessedfrom the
Configuration screen selected from the Main Menu.) Outbound Telnet is
always enabled. Toexit from an inbound Telnet session, select LOGOUTfrom
the Main menu and answer the confirmation prompt by typing y. To exit from
an HP router, another Switch 800T, a Switch 2000, or a UNIX login, press [Ctrl]
[D]. To force a disconnection from any device, use [Ctrl] [R]. To interrupt
commandprocessingwithouthaltinganoutboundTelnetsession,use [Ctrl][C].
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Using the Advanced Commands
Commands
Command Syntax
Description
vlan vlan_name
Used where VLANs are configured. Used to select a different VLAN
environmentinwhichtoexecute CommandPrompt commands.The command
prompt will change to show the VLAN name specified by the vlan_name
parameter.
where:
vlan_name is the name of the
virtual LAN you want to access.
clearled
config
Turns off the Security LED on the front panel of the Switch 800T.
Displays the configuration currently saved in flash memory. When
— MORE — is displayed, pressing [Enter] displays the next line of the
configuration, and pressing the Space bar displays the next screen of the
configuration. To halt a config listing and return to the command line prompt,
press [Q].
delete
Deletes the configuration file currently in use, returns the switch to its factory
default configuration, and reboots the switch.
getmib objectname.index
Retrieves the value of an individual MIB object in the switch.
where:
Example: The following command returns the enable/disable status for a port
having a port ID of 1. (For an example of port ID numbering, see the example
of the Port Status screen on page 4-4.)
objectname identifies the MIB
object by name or number format.
index identifies the instance of
getmib ifAdminStatus.1
each object name.
setmib objectname.index type value
Sets a MIB object to a specific value. Valid types are:
where:
objectname identifies the MIB
object by name or number format.
index identifies the instance of
each object name.
type
-i (integer)
-o (octet)
-g (gauge)
-t (time_ticks)
-d (object identifier) -u (unsigned integer 32)
-a (ip_addr)
-c (counter)
-D (Display String)
-N (NULL)
value identifies the numeric value for
the MIB object.
Example: This command sets port 1 to disabled status.
setmib ifAdminStatus.1 -i 2
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Using the Advanced Commands
Commands
Command Syntax
Description
walkmib objectname
Retrieves the MIB subtree for the specified MIB object. When — MORE —
is displayed, pressing [Enter] displays the next line of the configuration, and
pressing the Space bar displays the next screen of the configuration. To halt
a walkmib listing and return to the command line prompt, press [Q].
Examples:
walkmib ifSpeed displays the speed for each port installed in the switch.
walkmib ifPhysAddress displays the MAC address of each port installed
in the switch.
exit
Returns you to the Main Menu.
get ip-addr config filename
get ipx-addr config filename
Uses TFTP to transfer a configuration from a TFTP server on an attached
network. The switch must have IP or IPX configured, and the configuration
must have been previously transferred from a switch to the file server. TFTP
must be enabled on the server.
where:
ip_addr or ipx-addr is the IP or IPX
address of the file server.
Progress of the transfer, plus successful or unsuccessful completion of the
transfer are indicated in the Event Log.
filename is the directory path and
name of the file containing the
configuration.
Note: After transferring a configuration to the switch, the switch
automatically reboots to invoke the new configuration.
put ip-addr object filename
put ipx-addr object filename
Uses TFTP to transfer a configuration, a “crash record”, or the output of a
command from the switch to a file on a remote host. The switch must have IP
or IPX configured. TFTP must be enabled on the remote host. The target file
on the remote host must also exist and have write permissions. A command
used as an object must have an output that can be stored in a file.
where:
ip_addr or ipx-addr is the IP or IPX
address of the remote host.
Progress of the transfer, plus successful or unsuccessful completion of the
transfer are indicated in the Event Log.
object is config, crashrec, or a
command that generates an output
that can be stored in a file.
Note:When the switchreboots itselfdue toan internalerror,a “crashrecord”
(crashrec) is generated. This is a binary file holding internal data needed to
troubleshoot the cause of the internal error.
filename is the directory path and
name of the configuration file on
the remote host.
zget CONFIG [remote-file] [dos/unix]
Copies a switch configuration from a file on the console PC to the switch. The
PC must be emulating a VT100 or ANSI terminal. Also, the PC must be running
a Zmodem-compatible terminalemulationprogram suchas PROCOMM PLUS.
where:
remote-file is a file name on the
console PC.
dos = 0 (specifies DOS format)
unix = 1 (specifies unix format)
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Using the Advanced Commands
Commands
Command Syntax
Description
zput file remote-file overwrite dos/unix
where:
Copies a switchconfiguration from the switch to the console PC. The PCmust
be emulating a VT100 or ANSI terminal. Also, the PC must be running a
Zmodem-compatible terminal emulation program such as PROCOMM PLUS.
file is CONFIG or a command.
remote-file is a file name on the
console PC.
overwrite is:
0 (don’t overwrite a file of the
same name).
1 (create or overwrite a file of
the same name).
dos = 0 (specifies DOS format)
unix = 1 (specifies unix format)
Version
Displays the version of operating system (OS) software currently running in
the switch.
log [-a] ‘[keywrd]
Displays the event log.
(Press the Space bar when prompted by the -- MORE -- message.)
Examples:
log
Displays100 lines of the current event log, since the
last reboot.
log -a
Displays the entire event log.
log -a ‘telnet
Displays all event log lines containing the keyword
“telnet”
log ‘telnet
Displays any event log lines, since the last reboot, of the
current log that contain the keyword “telnet”.
! [repetitions]
Repeat the last command.
Examples:
!
Repeats the last command once.
! 3 Repeats the last command three times.
Repeat
Continuously repeats the last command until a key is pressed on the console.
Toggles paging mode for display commands.
Page
Print
Send the output of a Command Prompt command to a printer or to a file.
Display or redo a command from the command history.
Redo [?] / [number] / [string]
Examples:
Redo
Redo ?
Redo n
Re-executes the most recent command.
Causes the last ten commands to be listed.
Re-executes the previous nth command (1-10).
Redo string Re-executes a previous command that begins with the text
string.
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7
Advanced Concepts
Overview
■
■
■
■
■
■
Spanning Tree Protocol—STP (page 7-2)
Port trunking (page 7-5)
Filtering for enhanced bandwidth usage and in-band security (page 7-8)
Virtual LANs—VLANs (page 7-14)
IP Multicast—IGMP (page 7-23)
Automatic Broadcast Control—ABC (page 7-30)
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Advanced Concepts
Spanning Tree Protocol (STP)
Spanning Tree Protocol (STP)
The switch uses the IEEE 802.1d Spanning Tree Protocol (STP) to ensure that
only one path at a time is active between any two nodes on the network. In
networks where there is more than one physical path between any two nodes,
STP ensures a single active path between them by blocking all redundant
paths. STP is necessary in such networks because having more than one path
between a pair of nodes causes loops in the network, which can result in a
switch detecting the same node on more than one port. This results in
duplication of messages, leading to a “broadcast storm” that can bring down
the network.
No te
The default STP setting in the Switch 800T is “Off”. If you are using the switch
to provide redundant links, you should reconfigure the Spanning Tree Proto-
col to “On”. Also, when multiple VLANs are configured, you must enable STP
separately for each VLAN in which you want spanning tree to operate.
While allowing only one active path through a network at any time, STP retains
any redundant physical path to serve as a backup (blocked) path in case the
existing active path fails. Thus, if a active path fails, STP automatically
activates (unblocks) an available backup to serve as the new active path for
as long as the original active path is down. For example:
•
•
Active path from node A to node B: 1—> 3
Backup (redundant) path from node A to node B: 4 —> 2 —> 3
switch A
3
1
path cost: 100
path cost:
100
2
path cost: 100
switch C
path cost:200
switch B
switch D
4
node
A
node
B
Figure 7-1. Example of Logical and Redundant Paths Between Two Nodes
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Advanced Concepts
Spanning Tree Protocol (STP)
How To Configur e Spanning Tree: In most cases, the default STP param-
eter settings are adequate. In cases where it is not, use this procedure to make
configuration changes.
Ca u ti o n
If you enable STP (step 5), it is recommended that you leave the remainder of
the STP parameter settings at their default values until you have had an
opportunity to evaluate STP performance in your network. Because incorrect
STP settings can adversely affect network performance, you should avoid
making changes without having a strong understanding of how STP operates.
To learn the details of STP operation, refer to the IEEE 802.1d standard.
1. From the Main menu, select Configuration.
2. In the Configuration screen, select Spanning Tree.
3. If multiple VLANs are configured, select the VLAN in which you want to
configure STP. If multiple VLANs are not configured, skip this step.
4. Select Edit to highlight the STP Enabledparameter.
5. Press the Space bar to select Yes. (This enables STP.)
Read-Only Fields
Figure 7-2. Example of the STP Configuration Screen with Ethernet
Modules Installed in the Switch
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Advanced Concepts
Spanning Tree Protocol (STP)
6. If the remaining STP parameter settings are adequate for your network,
go to step 9.
7. Use [Tab] or the arrow keys to select the next parameter you want to
change, then type in the new value. (If you need information on STP
parameters, press [Enter] to select the Actions line, then press Hto get
help.)
8. Repeat step 7 for each additional parameter you want to change.
9. When you are finished editing parameters, press [Enter] to return to the
Actions line.
10. Press [S]to save the currentlydisplayed STP parameter settings and return
to the Configuration menu.
11. When you are finished configuring the switch, return to the Main Menu.
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Advanced Concepts
Port Trunking
Port Trunking
The multiple ports in a trunk behave as one logical port
Switch 1
port 1
Switch 2
Switch 3
port a port w
port b port x
port c port y
port 5
port 6
port 7
port 8
...
port 2
port 3
...
...
port n ...
port n
port z
port n
port n
Figure 7-3. Conceptual Illustration of Port Trunking
Port trunking is used to allow up to four ports to be connected together to
function as a single, higher-speed port to connect to another Hewlett-Packard
switch designed for port trunking. This enables speeds of up to 400 Mbit/s in
a 100Base-T trunk. On the Switch 800T you can implement up to four port
trunks, and on the B-version of the Switch 2000 (J3100B), you can implement
up to six port trunks, which enables either switch to function as a high-speed
backbone. (The Switch 800T actually allows up to six port trunks to be
configured. However, because by definition, a port trunk requires at least two
ports, the eight-port Switch 800Tphysically allows a maximum of four trunks.)
The A-version of the Switch 2000—J3100A—allows only one port trunk, but
can be trunked to other Hewlett-Packard switches that support port trunking.
Traffic distribution over the trunk ports is determined when packets arrive
with new source MAC addresses. Each new address is assigned to a trunk port
in a sequential way that distributes the source addresses evenly over the trunk.
The switch sends broadcast, multicast, and flooded traffic over only one port
within the trunk in order to prevent a broadcast loop. (The switch automati-
cally determines which port to use.)
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Advanced Concepts
Port Trunking
No te
Using more than one media type and/or link speed in a port trunk is not
supported. The console interface allows only links of the same media type
within the same trunk. Similarly, it is recommended that all links in the same
trunk have the same speed. You should also apply these rules when using a
network management application to configure a port trunk.
A configured trunk appears as a single port (labeled Trk1, Trk2...Trk6)
on other configuration screens, such as the Spanning Tree and Port VLAN
Assignment screens. Also, when assigning a port trunk to a VLAN, all ports in
that trunk must be assigned to that same VLAN.
When trunks are used in conjunction with filters and port monitoring, if a
port is removed from the trunk, the filters and port monitoring for that port
are returned to their default configuration settings.
How To Configur e the Port Tr unk: Use the Ports Configuration screen to
configure trunks.
1. From the Main menu, select Configuration.
2. In the Configuration menu, select Ports.
3. To assign a port to the trunk:
a. Select Edit.
b. Move the cursor to the Trunk column.
c. Select the row for a port you want in the trunk.
d. Press the Space bar to select the trunk you want. (To remove a port
from a trunk, repeat the space bar until the trunk assignment is
blank.)
For example, in the following screen, ports 1, and 2 have been assigned
to trunk Trk1, and pors 7 and 8 have been assigned to trunk Trk2.:
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Advanced Concepts
Port Trunking
Trunk Assignment
Figure 7-4. Example of Configuring a Port Trunk
4. To assign another port to the trunk, repeat steps 3c, and 3d.
Configuration menu.
6. When you are finished configuring the switch, return to the Main Menu.
To Remove a Port from t he Tr unk: In step 3c, above, select the port you
want to remove from the trunk. In step 3d, continue pressing the Space bar
until the trunk assignment is blank.
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Advanced Concepts
Filters and Security
Filters and Security
To enhance the switch’s bandwidth usage and in-band security, configure per-
port filters to forward desired traffic or drop unwanted traffic, as described
below. The switch can support up to 50 filters.
Table 7-1. Filter Types and Criteria
Filter Type
Selection Criteria
Multicast
Traffic having a specified multicast address will be forwarded or
dropped on a per-port (destination) basis.
Protocol
Traffic having the selected frame (protocol) type will be forwarded or
dropped on a per-port (destination) basis.
Source Port
Source MAC
Traffic from a designated source port willbe forwarded or dropped on
a per-port (destination) basis within the same VLAN.
Traffic from a specified source MAC address and coming through a
particular source port will be forwarded or dropped on a per-port
(destination) basis within the same VLAN.
Mult icast Filters. This filter type enables the switch to send multicast
traffic to a specified set of destination ports. This helps to preserve bandwidth
by reducing multicast traffic on ports where it is unnecessary, and to isolate
multicast traffic to enhance security.
No te
IP multicast addresses occur in the range from 224.0.0.0 through
239.255.255.255. When IGMP is enabled, anyTraffic/Security filters configured
with a “Multicast” filter type and a “Multicast Address” within the above range
are disabled and an event log message indicating this action is logged . That
is, IGMP will control the IP multicast traffic flow and the Traffic/Security filter
will control any multicast traffic that is not IP multicast. (Multicast addresses
are entered in the “Traffic/Security Filters” screen as Ethernet addresses in
the range of 01005e-000000 through 01995e-7fffff.)
If Spanning Tree is enabled, then the Spanning Tree multicast MAC address
should not be filtered. (STP will not operate properly if the multicast MAC
address is filtered.)
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Advanced Concepts
Filters and Security
Protocol Filt ers. This filter type enables the switch to restrict traffic of a
particular protocol type to a specific destination port or ports on the switch
(or to be dropped for all ports on the switch). Filtered protocol types include:
■
■
■
■
■
■
■
■
■
■
■
IP (Ethernet)
IP (802.3 SAP)
ARP
DEC LAT
AppleTalk
SNA
NetBIOS
IPX (Ethernet)
IPX (802.3 SAP)
VINES IP
VINES Echo
No te
The switch provides filtering only for Ethernet and 802.3 format packets.
Source Port Filt er s. This filter type enables the switch to restrict traffic
from all end nodes on the indicated source port to specific destination ports
(or to be dropped for all destination ports on the switch). If VLANs are
configured, the destination port must be in the same VLAN as the source port.
No te
If more than one VLAN is configured, then the set of destination ports (Dest
Port parameter) can consist of only the destination ports that are in the same
VLAN as the source port.
Source MAC Filt ers. This filter type enables the switch to specify the port
through which a node having a specified (source) MAC address can send
traffic. Only ports that are selected are allowed to send and receive traffic for
the specified node. For additional security, if traffic from the source MAC
address appears on any port other than the selected one, the traffic from that
source will be dropped and the Security LED on the front of the switch begins
flashing. (To clear the Security LED, use the Advanced Command ClearLED
command.)
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Advanced Concepts
Filters and Security
No te
If a node designated by the Source MAC parameter is moved to a different port
than its original source port, any traffic to or from that node will not be
forwarded by the switch. Forwarding will resume if the node is moved back
to the original source port.
Traffic between ports not designated as a “Source Port” is not affected by the
filter.
How To Configur e Traffic/Securit y Filters: Use this procedure to spec-
ify the type of filters to use on the switch and whether to forward or drop
filtered packets for each filter you specify. You can create up to fifty filters.
1. From the Main menu, select Configuration.
2. In the Configuration menu, select Traffic/Security Filters to
display the following screen.
Figure 7-5. The Traffic/Security Filters List Screen (Default Values)
3. In the Actions line, press [A] (for Add) to display the Traffic/Security
Filters Configuration screen shown in figure 7-6.
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Advanced Concepts
Filters and Security
Filter Type Parameter
Figure 7-6. Example of the Traffic/Security Filters Configuration Screen
4. Press the Space bar to select the type of filter you want to configure. The
options are:
•
•
•
•
Multicast (the default)
Protocol
Source Port
Source MAC
5. Press [v] once to highlight the next line. Depending on the type of filter
you selected in step 4, select one of the options listed in the following
table:
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Advanced Concepts
Filters and Security
Filter Type Option
Selected in Step 4
NextLine forFilter Action for Selected Filter Option
Type Option
Multicast
Protocol
Multicast Address Type in the multicast address.
Frame Type
Use the Space bar to select the frame
type.
Source Port
Source MAC
Source Port
Use the Space bar to select the source
port.
Source Port and
Source MAC
(address)
a. Use the Space bar to select
the source port.
b. Press [>] to highlight the
Source MAC parameter.
c. Type the MAC address of
the source device whose
packets you want to filter.
6. Configure the filter action for each destination port. For example:
A “Source Port “filter type has been
selected for port 2
A Drop action has been specified for ports 4 and 5.
Thus, traffic from port 2 will not be forwarded by
ports 4 and 5.
Figure 7-7. Example of Specifying Filter Actions for Individual Ports
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Advanced Concepts
Filters and Security
a. Press [v] to highlight the Action option for a destination port
( Dest Port).
filtered packets--the default--or Drop filtered packets).
c. Do one of the following:
–
To configure the filter action for another destination port, return
to step 6a.
–
step 7.
7. Press [Enter] to return to the Actions line, then press [S] (for Save) to save
the current filter configuration.
8. Do one of the following:
•
•
If you want to configure another filter, return to step 3.
If you are finished configuring filters, press [B] (for Back) to return
to the Configuration menu.
9. When you are finished configuring the switch, return to the Main Menu.
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Advanced Concepts
Virtual LANs (VLANs)
Virtual LANs (VLANs)
The switch supports port-based virtual LANs (VLANs). A VLAN is a collection
of ports that belong to a single broadcast domain. (That is, all ports carrying
traffic for a particular subnet address would belong to the same VLAN.) This
allows workgroups to be defined on the basis of their logical function instead
of their physical location, and does not require recabling.
Port-based VLANs are typically used to enable broadcast traffic reduction and
increased security. By using port groupings, traffic is isolated to specific
domains. A group of network users assigned to a VLAN are a separate traffic
domain so that packets are forwarded only between ports that are designated
for the same VLAN. Cross-domain broadcast traffic is eliminated and band-
width is saved by not allowing packets to flood throughout the network.
For example, if ports 1 through 4 belong to VLAN_1 and ports 5 through 8
belong to VLAN_2, traffic from end-node stations on ports 2 through 4 is
restricted to only VLAN 1, while traffic from ports 5 through 7 is restricted to
only VLAN 2. For nodes on VLAN_1 to communicate with VLAN_2, their traffic
must go through an external router via ports 1 and 8.
Switch with Two
VLANs Configured
Port 2
Port 3
Port 4
VLAN_1
Port 1
External
Router
Port 5
Port 6
Port 7
Port 8
VLAN_2
Figure 7-8. Example of Routing Between VLANs via an External Router
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Advanced Concepts
Virtual LANs (VLANs)
Effect of VLANs on Other Switch Features
IPX and IP Inter faces. There is a one-to-one relationship between a VLAN
and an IP or IPX network interface. Since the VLAN is defined by a group of
ports, the state (up/down) of those ports determines the state of the IP or IPX
network interface associated with that VLAN. When a VLAN comes up because
one or more of its ports is up, the IP or IPX interface for that VLAN is also
activated. Likewise, when a VLAN is deactivated because all of its ports are
down, the corresponding IP or IPX interface is also deactivated.
VLAN MAC Addr esses. The switch has one unique MAC address for each
of its VLAN interfaces. You can send an 802.2 test packet to this MAC address
to verify connectivity to the switch. Likewise, you can assign an IP address to
the VLAN interface, and when you Ping that address, ARP will resolve the IP
address to this MAC address. (For IPX networks, each VLAN interface is
automatically assigned a node address that is equivalent to the MAC address
for that VLAN interface.) The switch allows up to eight VLAN MAC addresses
(one per possible VLAN). If STP is enabled for a VLAN, the Spanning Tree
source MAC address in the STP configuration BPDU packets for the VLAN
will be the VLAN MAC address itself.
No te
If multiple VLANs are configured on the switch, you will need to configure a
separate instance of Spanning Tree for each VLAN in which you want
Spanning Tree to operate.
Por t Trunks. When assigning a port trunk to a VLAN, all ports in the trunk
must be assigned to the same VLAN. You cannot split trunk members across
multiple VLANs.
Por t Monit oring. If you designate a port on the switch for network moni-
toring, this port will not appear in the Port VLAN Assignment screen and
cannot be configured as a member of any VLAN.
VLANs Spanning Mult iple Swit ches. It is possible to have ports on more
than one switch that are members of the same VLAN. Switches having VLANs
that cross multiple switches must be interconnected by one link per VLAN.
For example, if VLAN A and VLAN B span two switches, the switches must be
interconnected by two independent links; one for VLAN A and one for VLAN
B. This concept is illustrated in figure 7-9 on the next page.
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Advanced Concepts
Virtual LANs (VLANs)
Adding a Tr ansceiver Module. If you install a transceiver module in a
previously unoccupied slot, the port for that transceiver module will be
automatically added to the default VLAN.
Ca u ti o n
Before installing a transceiver module in the Switch 800T, you must first turn
off the power to the switch to avoid damaging switch components. Refer to
“1. Install Add-In Transceivers” on page 1-3.
Interswitch
Link for VLAN A
VLAN A
server
server
workstation
workstation
workstation
Switch 1
Switch 2
VLAN B
server
100 VG Hub
workstation
workstation
workstation
workstation
workstation
InterswitchLink
for VLAN B
Figure 7-9. Example of VLANs Spanning Multiple Switches
Overview of Using VLANs
To use VLANs, you will need to follow these general steps:
Configure at least one VLAN in addition to the default VLAN
■
(DEFAULT_VLAN). Refer to “How To Configure a VLAN” on the next
page.
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Advanced Concepts
Virtual LANs (VLANs)
■
■
If you are managing VLANs with SNMP in an IP network, either configure
an IP address and subnet mask for each VLAN or use the (default) Bootp
feature to download an IP configuration from a Bootp server. Refer to
“Internet (IP) Service Features” on page 3-9 or to appendix E, “Bootp
Operation”.
If you are managing VLANs with SNMP in an IPX network, configure the
IPX gateway encapsulation and gateway node. (An IPX node address is
automatically assigned to each VLAN interface.) Refer to “IPX Service
Features'' on page 3-7.
How To Configure a VLAN
In the factory default configuration, all ports on the Switch 800T belong to a
physical broadcast domain named “DEFAULT_VLAN”. You can divide the
switch ports into multiple virtual broadcast domains by adding one or more
VLANs. Because the default VLAN permanently exists in the switch, adding
one new VLAN results in two VLANs existing in the switch. Adding another
VLAN results in three VLANs existing in the switch, and so on.
No te
If you add one or more new VLAN(s), you should then reboot the switch. (A
new VLAN will not appear as an option in the Port VLAN Assignment screen
until after the switch is rebooted.) If you create a new VLAN without also
rebooting the switch, you will be prompted to choose whether to reboot the
switch before entering the Port VLAN Assignment screen. When you move a
port to a VLAN, the new assignment is automatically enabled, and it is not
necessary to reboot the switch a second time.
To create a new VLAN and/or move ports into a VLAN, use the following two
procedures.
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Advanced Concepts
Virtual LANs (VLANs)
To Creat e a New VLAN. Use this procedure to add a new VLAN or to edit
the name of an existing VLAN.
1. Beginning at the Main Menu, select Configuration to display the
configuration menu.
VLAN Names Access
Port VLAN Assignment
Access
Figure 7-10. The VLAN Options in the Configuration Menu
2. From the Configuration menu, select VLAN Names. You will then see a
screen similar to the following:
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Advanced Concepts
Virtual LANs (VLANs)
List of VLAN Names
(up to 8)
Figure 7-11. The (Default) VLAN Names Screen
3. Press [A] (for Add). You will then be prompted for a new VLAN name:
Name : _
4. Type the name (up to 12 characters, with no spaces) of a new VLAN that
you want to add, then press [Enter].
5. Press [S] (for Save).
6. Do one of the following:
•
•
If you want to add another VLAN name, return to step 3.
If you are finished entering VLAN names, press [B] (for Back)to
return to the Configuration menu.
7. Return to the Main Menu and reboot the switch to activate the new
VLAN(s) you have just entered.
No te
You can rename “DEFAULT_VLAN”, but you cannot delete it from the Switch,
regardless of which name you assign to it.
To Move a Port to a VLAN. Use this procedure to move a port into a VLAN.
(Ports you do not specifically assign to a VLAN are automatically placed in
the default VLAN.)
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Advanced Concepts
Virtual LANs (VLANs)
1. If you have just added a new VLAN name and have not yet rebooted the
switch, do so now (step 7 in the previous procedure).
2. Return to the Main Menu and select Configuration to display the Config-
uration menu.
3. Select Port VLAN Assignment. You will then see a Port VLAN
Assignment screen similar to the following:
VLAN assignment field
read-only fields
Figure 7-12. Example of the Port VLAN Assignment Screen
4. The VLAN column shows the VLAN to which each port on the switch is
assigned. (Ports that you do not specifically assign are automatically
assigned to the default VLAN.) To assign a port on the switch to a different
VLAN than the current selection:
a. Press [E] (for Edit) to move the highlight to the VLAN column.
b. Use [v] to highlight the VLAN name for the port you want to re-assign
to a different VLAN.
c. Press the Space bar to select a different VLAN name.
d. Do one of the following:
–
–
To re-assign another port to a different VLAN, return to step 8b.
If you are finished assigning ports to VLANs, press [Enter] and [S]
(for Save) to activate the changes you've made and to return to
the Configuration menu.
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Advanced Concepts
Virtual LANs (VLANs)
5. Return to the Main menu. (It is not necessary to reboot the switch; the
new port assignments are implemented when you do the “save” in the
preceding step.)
VLAN Restrictions
■
■
■
Each port can be assigned to only one VLAN.
An external router must be used to communicate between two VLANs.
Duplicate MAC addresses on different VLANs are not supported and can
cause VLAN operating problems. These duplicates are possible and com-
mon in situations involving Sun workstations with multiple network
interface cards, with DECnet routers, and with certain Hewlett-Packard
routers using OS versions earlier than A09.70 where any of the following
are enabled:
•
•
•
•
•
IPX
IP Host-Only
STP
XNS
DECnet
Currently, the problem of duplicate MAC addresses in IPX and IP Host-
Only environments is addressed through the HP router OS version
described below. However, for XNS and DECnet environments, a satis-
factory solution is not available from any vendor at this time.
No te
Operating problems associated with duplicate MAC addresses are likely to
occur in VLAN environments where XNS and DECnet are used. For this
reason, using VLANs in XNS and DECnet environments is not currently
supported on the Switch 800T.
■
If you assign a port to be the Network Monitoring Port, that port cannot
be configured as a member of any VLAN. If the port was previously
assigned to a VLAN (including the default VLAN), it will be automatically
removed from the VLAN when the Monitoring Port assignment is made.
When you subsequently disable the monitoring port assignment, the port
will be returned to the default VLAN.
■
Before you can delete a VLAN, you must move all of its ports to another
VLAN.
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Advanced Concepts
Virtual LANs (VLANs)
HP Router Requirements. Use the Hewlett-Packard version A.09.70 (or
later) router OS release if any of the following Hewlett-Packard routers are
installed in networks in which you will be using VLANs:
HP Router 440 (formerly Router ER)
HP Router 470 (formerly Router LR)
HP Router 480 (formerly Router BR)
HP Router 650
Release A.09.70 (or later) is available electronically through the HP BBS
service and the World Wide Web. Refer to the “Customer Support Services”
card at the beginning of this manual.
Symptoms of Duplicate MAC Addresses in VLAN
Environments
There are no definitive events or statistics to indicate the presence of duplicate
MAC addresses in a VLAN environment. However, one symptom that may
occur is that a duplicate MAC address can appear in the Port Address Table
screen to be linked with one port, and then later appear to be linked to another
port.
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Advanced Concepts
IP Multicast (IGMP)
IP Multicast (IGMP)
In a network where IP multicast traffic is transmitted for various multimedia
applications, you can use the switch to reduce unnecessary bandwidth usage
on a per-port basis by configuring IGMP.
How IGMP Operates
The Internet Group Management Protocol (IGMP) is an internal protocol of
the Internet Protocol (IP) suite. IP manages multicast traffic by using
switches, multicast routers, and hosts that support IGMP. (In Hewlett-Pack-
ard’s implementation of IGMP, a multicast router is not necessary as long as
the switch is configured to support IGMP with the querier feature enabled.)
A set of hosts, routers, and/or switches that send or receive multicast data
streams to or from the same source(s) are termed a multicast group, and have
the same multicast group address. The multicast group running version 2 of
IGMP uses three fundamental types of messages to communicate:
■
Query: A message sent from the querier (multicast router or switch)
asking for a response from each host belonging to the multicast group. If
a multicast router supporting IGMP is not present, then the switch must
assume this function in order to elicit group membership information
from the hosts on the network.
■
■
Report : A message sent by a host to the querier to indicate that the host
wants to be or is a member of a given group indicated in the report
message.
Leave Group: A message sent by a host to the querier to indicate that the
host has ceased to be a member of a specific multicast group.
Thus, IGMP identifies members of a multicast group (within a subnet) and
allows IGMP-configured hosts (and routers) to join or leave multicast groups.
Role of the Switch. When IGMP is enabled on the switch, it examines the
IGMP packets it receives:
■
To learn which of its ports are linked to IGMP hosts and multicast routers/
queriers belonging to any multicast group
■
To become a querier if a multicast router/querier is not discovered on the
network
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Advanced Concepts
IP Multicast (IGMP)
Once the switch learns the port location of the hosts belonging to any partic-
ular multicast group, it can direct group traffic to only those ports, resulting
in bandwidth savings on ports where group members do not reside. The
following example illustrates this operation.
Figure 7-13 shows a network running IGMP.
■
PCs 1 and 4, Switch #2, and all of the routers are members of an IP
multicast group. (The routers operate as queriers.)
■
Switch #1 ignores IGMP traffic and does not distinguish between IP
multicast group members and non-members. Thus, it is sending large
amounts of unwanted multicast traffic out the ports to PCs 2 and 3.
■
Switch #2 is recognizing IGMP traffic and learns that PC #4 is in the IP
multicast group receiving multicast data from the video server (PC X).
Switch #2 then sends the multicast data only to the port for PC #4, thus
avoiding unwanted multicast traffic on the ports for PCs #5 and #6.
Multicast
Data Stream
Router
PC X
Router
Video
Server
Router
IGMP is NOT
Running Here
Router
Switch # 1
IGMP IS
Running Here
Switch # 2
PC #1
Video
Client
PC #3
PC # 4
PC #2
Video
Client
PC #6
PC # 5
Figure 7-13. The Advantage of Using IGMP
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Advanced Concepts
IP Multicast (IGMP)
The next figure (7-14) shows a network running IP multicasting using IGMP
without a multicast router. In this case, the IGMP-configured switch runs as
a querier.
PCs 2, 5, and 6 are members of the same IP multicast group.
IGMP is configured on switches 3 and 4. Either of these switches can operate
as querier because a multicast router is not present on the network. (If an
IGMP switch does not detect a querier, it automatically assumes this role,
assuming the querier feature is enabled—the default—within IGMP.)
Switch # 1
IGMP is NOT
Running Here
IGMP IS
Running Here
Switch # 3
Multicast
Data Stream
Switch #21
Switch #4
PC #2
PC #1
PC #6
PC # 5
Figure 7-14. Isolating IP Multicast Traffic in a Network
■
In the above figure, the multicast group traffic does not go to switch 1 and
beyond because either the port on switch 3 that connects to switch 1 has
been configured as blocked or there are no hosts off of switch 1 or switch
2 that belong to the multicast group.
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Advanced Concepts
IP Multicast (IGMP)
■
For PC #1 to become a member of the same multicast group without
flooding IP multicast traffic on all ports of switches 1 and 2, IGMP must
be configured on both switches 1 and 2.
No te
IP multicast addresses occur in the range from 224.0.0.0 through
239.255.255.255. When IGMP is enabled, any Traffic/Security filters (page 7-8)
configured with a “Multicast” filter type and a “Multicast Address” within the
above range are disabled and an event log message indicating this action is
logged . That is, IGMP will control the IP multicast traffic flow and the Traffic/
Security filter will control any multicast traffic that is not IP multicast traffic.
How To Configure IGMP
In the factory default configuration, IGMP is disabled. If multiple VLANs are
configured, you can configure IGMP on a per-VLAN basis. The configuration
options include:
■
ports on the switch or VLAN to simply forward IP multicast traffic.
Enabling IGMP allows the ports to detect IGMP queries and report packets
and manage IP multicast traffic through the switch. If no other querier is
detected, the switch will then also function as the querier. (If you need to
disable the querier feature, you can do so through the IGMP configuration
MIB. Refer to “Changing the Querier Configuration Setting” on page 7-29.)
■
High-prior ity forwarding. Disabling this parameter (the default) causes
the switch or VLAN to process IP multicast traffic, along with other traffic,
in the order received. If priority forwarding is supported by the network
technology you are using (such as Hewlett-Packard’s implementation of
100Base-TX) enabling this parameter causes the switch or VLAN to give
a higher priority to IP multicast traffic than to other traffic.
Per-Port handling of IP mult icast t raffic. In the factory default state
(IGMP disabled), the switch forwards all IGMP traffic. When IGMP is enabled,
you can configure the switch to do any of the following on a per-port basis:
•
Automatic (the default): Causes the switch to interpret IGMP packets
and to filter IP multicast traffic based on the IGMP packet information
for that port.
•
•
Blocking: Causes the switch to drop all IGMP transmissions received
and block all outgoing IP Multicast packets for that port.
Forwarding: Causes the switch to forward all IGMP and IP multicast
transmissions through the port.
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Advanced Concepts
IP Multicast (IGMP)
No te
If you move a port from one VLAN to another, that port will retain its IP
multicast (IP Mcast) parameter setting. For example, suppose port 1 is in
DEFAULT_VLAN with an IP Mcast setting of “Blocked”. If you create another
VLAN named VLAN2 and then move port 1 to VLAN2, the IP Mcast setting will
remain the same (Blocked).
To Configure IGMP. Use this procedure to configure or edit the IGMP
settings for a switch or VLAN.
1. Beginning at the Main Menu, select Configurationto display the
Configuration menu.
IGMP Option
Figure 7-15. The IGMP Option in the Configuration Menu
2. Select IP Multicast (IGMP) Service.
3. If VLANs are configured, select the VLAN in which you want to configure
IGMP and press [E] (for Edit). You will then see a screen similar to the
following:
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Advanced Concepts
IP Multicast (IGMP)
Figure 7-16. Example of the (Default) IP Multicast (IGMP) Service Screen
4. Press the Space bar to select Yes(to enable IGMP).
5. Use [v] to highlight the Forward with High Priorityparameter.
6. If you want IGMP traffic to be forwarded with a higher priority than other
leave this parameter set to No.
7. Use [v] to highlight the IP Mcastparameter setting for a port you want
to reconfigure. (The options are: Auto, Blocked, and Forward. Refer to
the online Help and/or page 7-26 for further information on these choices.)
8. Repeat step 7 for each port you want to configure.
9. When you are finished configuring the IP Mcast parameter for the dis-
played ports, press [Enter] and [S] (for Save) to activate the changes you’ve
made to the IGMP configuration.
10. Return to the Main Menu. (It is not necessary to reboot the switch. The
new IGMP configuration is implemented when you select the “Save” in
step 9.)
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Advanced Concepts
IP Multicast (IGMP)
Changing t he Quer ier Configurat ion Set t ing.. The Querier feature, by
default, is enabled and in most cases should be left in this setting. If you need
to change the querier setting, you can do so using the IGMP Configuration
MIB. To disable the querier setting, select the Advanced Command prompt
from the Main Menu and enter this command:
setmib hpSwitchIgmpQuerierState.<vlan number> -i 2
To enable the querier setting, select the Advanced Command prompt from the
Main Menu and enter this command:
setmib hpSwitchIgmpQuerierState.<vlan number> -i 1
To view the current querier setting, select the Advanced Command prompt
from the Main Menu and enter this command:
getmib hpSwitchIgmpQuerierState.<vlan number>
where:
<vlan number> is the sequential (index) number of the specific VLAN. If no
VLANs are configured, use “1”. For example:
getmib hpSwitchIgmpQuerierState.1
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Advanced Concepts
Automatic Broadcast Control (ABC)
Automatic Broadcast Control (ABC)
ABC helps to conserve bandwidth and processing power for IP and/or IPX
traffic within a broadcast domain without adding the levels of cost and latency
normally associated with routers. ABC achieves this by using the switch to
reduce IP ARP and RIP broadcast traffic and IPX NSQ, RIP, and SAP broadcast
traffic normally found on a network. Also, when enabled, ABC allows you to
set the global broadcast limit (Bcast Limitparameter) for all ports on the
switch (or, if VLANs are configured, for all ports in the specified VLAN).
How ABC Operates
Reducing ARP Br oadcast Tr affic. When enabled on the switch or a VLAN,
ABC does the following to reduce ARP (Address Resolution Protocol) broad-
cast traffic:
1. Learning which port various hosts reside on by reading the address
information in broadcast ARP (Address Resolution Protocol) packets and
unicast ARP response packets
2. Proxy responding to subsequent ARP broadcast requests for those hosts
from other devices instead of forwarding such requests out all ports and
requiring each host to respond
For example, assume that host A has traffic for host D.
Server #1
Switch
Server #2
Hub
Hub
Host A
Host B
Host C
Host D
Figure 7-17. Example of a Network Using ABC
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Advanced Concepts
Automatic Broadcast Control (ABC)
To learn host D’s MAC address, host A sends a broadcast ARP request.
Because the switch does not yet know the location of host D, it floods the
request out all ports. However, the switch also learns from the ARP request
the location of host A and stores this information in its ARP cache. Host D
receives the ARP request (as will all other hosts connected to the switch), and
responds with a unicast packet through the switch to host A. The switch
monitors this response, learns the location of host D, and stores this informa-
tion in its ARP cache. Thus, the switch now knows the address information
for both host A and host D. Now, hosts A and D can send unicast packets to
each other because they have learned each other’s addresses. Suppose that
host C now wants to communicate with host A. C sends a broadcast ARP
request to the switch. Because the switch already has A’s address information,
it does not flood C’s ARP request out all ports, but instead sends a proxy ARP
reply to C that tells C the address information for host A. Host C can now send
unicast packets directly to host A. From these packets, host A will learn host
C’s addressing information and be able to respond with unicast packets
addressed to host C. The result is reduced network traffic because host C’s
broadcast ARP request was not flooded on the switch’s ports. Similarly, for
IPX networks, the switch learns service and route information from SAPs and
RIPs respectively, and maintains SAP and RIP tables that contain the
addresses of known servers. Using this data, the switch sends proxy responses
to NSQ requests for these servers instead of flooding the requests on all ports.
No te
The switch sends proxy ARP replies to hosts (ARP initiators) that are on a
different port than the target host. However, the switch does not send a proxy
ARP reply when both the initiator and the target host are on the same port.
For example, the switch does not send a proxy ARP reply for host B (figure
7-17) in replying to an ARP request from host A.
The switch does not translate encapsulation types (such as 802.2 to SNAP in
IPX). As a result, if a host client sends an NSQ request for a server, the switch
will always send a proxy response containing the address of a server support-
ing the same encapsulation type. If the switch has not learned of a server using
the same encapsulation type as the host client, then the switch will flood the
host client’s NSQ request to all ports. However, if a local server supporting
the same encapsulation type exists on a port from which the NSQ request is
received, the switch will not forward the request to other ports.
If Automatic Broadcast Control (ABC) is configured and more than one port
is monitored, then broadcast packets may be duplicated on the monitor port.
Reducing RIP and SAP Br oadcast Tr affic. You can also configure ABCto
limit IP RIP and IPX RIP and SAP broadcasts, which can further reduce
broadcast traffic on your network. RIP and SAP broadcasts are normally
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Advanced Concepts
Automatic Broadcast Control (ABC)
forwarded on all ports. However, with ABC enabled and additional RIP and
SAP parameters configured, the switch will forward IP RIP and IPX RIP and
SAP broadcasts only to the ports on which these types of broadcasts have
been received earlier. This means that other ports are relieved of some
unnecessary traffic because the RIP and SAP broadcasts will be forwarded
only to ports where there are routers or servers that would use the broadcast
information.
How To Configure ABC
In the factory default configuration, ABC is disabled. If multiple VLANs are
configured, you can configure ABC on a per-VLAN basis. Otherwise, the
configuration is on the switch level. You can enable ABC for IP only, IPXonly,
or for both. When ABC is disabled (the default), all broadcasts are sent out
either all ports in the switch or, if VLANs are configured, out all ports in VLANs
where ABC is disabled. ABC can be enabled with the options described below.
Enabling IP Only
Enabling ABC for IP causes the switch to send a proxy ARP reply for hosts
whose addresses the switch has learned. Enabling for IP also:
■
Allows you to choose whether to enable ABC for IP RIP Control. If
enabled, IP RIP Control causes IP RIP broadcasts to be forwarded only
to ports where IP RIPs have been previously received. This avoids sending
IP RIP broadcasts to ports where there is no indication of devices that
would use them.
■
Activates a broadcast limit for either all ports in the switch or, if VLANs
are configured, for all ports in the selected VLAN. (You can accept the
default broadcast limit setting, change it, or turn it off.)
Enabling IPX Only
Enabling ABC for IPX causes the switch to send a proxy NSQ (nearest server
query) reply for services the switch has learned. Enabling for IPX also:
■
Allows you to choose whether to enable ABC for IPX RIP/SAP control. If
enabled, IPX RIP/SAP control causes IPX RIP and SAP broadcasts to be
forwarded only to ports where IPX RIPs and SAPs have previously been
received. This avoids sending IPX RIP and SAP broadcasts to ports where
there is no indication of devices that would use them.
■
Activates a broadcast limit for either all ports in the switch or, if VLANs
are configured, for all ports in the selected VLAN. (You can accept the
default broadcast limit setting, change it, or turn it off.)
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Advanced Concepts
Automatic Broadcast Control (ABC)
Enabling Both IP and IPX (IP_IPX)
Enabling ABC for IP and IPX causes the switch to:
■
■
Send a proxy IP ARP reply for hosts whose addresses the switch has
learned.
Send a proxy NSQ (nearest server query) reply for services the switch has
learned.
Enabling for both IP and IPX also allows you to choose whether to:
■
Enable ABC for IP RIP Control and/or IPX RIP/SAP control, as described
in the preceding subsections.
■
Set a broadcast limit for either all ports in the switch or, if VLANs are
configured, for all ports in the selected VLAN.
To Configure ABC. Use this procedure to configure or edit the ABC settings
for a switch or VLAN.
1. Beginning at the Main Menu, select Configurationto display the
Configuration menu.
ABCOption
Figure 7-18. The Configuration Menu
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Automatic Broadcast Control (ABC)
2. Select Automatic Broadcast Control (ABC) and press [Enter].
3. If no VLANs are configured, go to step 4 . If VLANs are configured, press
Edit, then select the VLAN in which you want to configure ABC.
No te
The rest of this procedure assumes that VLANs are not configured. If you have
VLANs configured on your switch, you can still use this procedure. The screen
layout will be different than shown here, but the parameters are the same.
4. Press [E] (for Edit).
Note: This is the screen
layout when no VLANs are
configured.The screenhas
a different appearance if
VLANs are configured.
Figure 7-19. The Default ABC Screen (No VLANs Configured)
5. Use the Space bar to enable ABC. Select one of these options:
• IP_IPX: Enables ABC for both the IP and IPX protocols.
• IP: Enables ABC only for the IP protocol.
• IPX: Enables ABC only for the IPX protocol.
• Disabled
6. If you want broadcast control disabled for IP RIP and/or IPX RIP and SAP
broadcasts, leave the remaining parameters set to Noand go to step 7.
If you do want broadcast control for RIP or SAP broadcasts, press an
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Advanced Concepts
Automatic Broadcast Control (ABC)
arrow key to display the remaining ABC parameters. (If VLANs are
configured, these parameters already appear.) Then do one of the follow-
ing:
•
If you enabled ABC for IP_IPX and pressed an arrow key (figure 7-20,
below):
Note: This is the screen
layout when no VLANs are
configured.The screenhas
a different appearance if
VLANs are configured.
Figure 7-20. ABC Enabled With Default IP_IPX Option (No VLANs Configured)
i. If you want IP RIP broadcast control, then select the IP RIP
Controlparameter and use the Space bar to select Yes.
SAP Controlparameter and use the Space bar to select Yes.
iii. If you want to specify a different global broadcast limit for the
switch or selected VLAN (if VLANs are configured), select the
Bcast Limitparameter and type a value from 0 to 99. (A “0”
disables broadcast limits; 40 is the default setting.)
iv. Go to step 7 on page 7-37.
No te
The broadcast limit (BcastLimit) parameter in the ABC screen sets a global
broadcast limit value for all ports in the switch or selected VLAN (if VLANs
are configured). If you want to set broadcast limits on a per-port basis, you
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Advanced Concepts
Automatic Broadcast Control (ABC)
can override the setting in this screen by going to the Port Configuration
screen (page 3-6) and setting the broadcast limit value individually for one or
more specific ports.
•
If you enabled ABC for IP (figure 7-21, below):
Note: This is the screen
layout when no VLANs are
configured.The screenhas
a different appearance if
VLANs are configured.
Figure 7-21. ABC Enabled With Default IP Option (No VLANs Configured)
iii. If you want to specify a different global broadcast limit for the
switch or selected VLAN (if VLANs are configured), select the
Bcast Limitparameter and type a value from 0 to 99. (A “0”
disables broadcast limits; 40 is the default setting.) Refer to the
Note on page 7-35.
iv. Go to step 7 on page 7-37.
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Advanced Concepts
Automatic Broadcast Control (ABC)
•
If you enabled ABC for IPX (figure 7-22, below):
Note: This is the screen
layout when no VLANs are
configured.The screenhas
a different appearance if
VLANs are configured.
Figure 7-22. ABC Enabled With Default IPX Option (No VLANs Configured)
iii. If you want to specify a different global broadcast limit for the
switch or selected VLAN (if VLANs are configured), select the
Bcast Limitparameter and type a value from 0 to 99. (A “0”
disables broadcast limits; 40 is the default setting.) Refer to the
Note on page 7-35.
iv. Go to step 7, below.
8. Press [S] (for Save) to activate the changes you have made to the ABC
parameters.
9. Return to the Main Menu. (It is not necessary to reboot the switch. The
new ABC configuration is implemented when you select the “save” in step
8.)
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Automatic Broadcast Control (ABC)
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8
File Transfers
Overview
You can download new switch software (operating system—OS) and upload
or download switch configuration files. These features are useful for acquiring
periodic switch software upgrades and for storing or retrieving a switch
configuration.
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File Transfers
Downloading an Operating System
Downloading an Operating System
You can use the switch console’s TFTP feature (Download OS), HP’s SNMP
Download Manager, or the HP Update Utility (update.exe) to download a new
operating system (OS) to the switch. Downloading a new OS does not change
the current switch configuration.
Using the Download OSoption from the switch Main Menu (described on
the following pages):
■
The switch must be configured for either IP or IPX service.
■
The OS software to download must be stored in a file on a TFTP server in
your network or VLAN (if configured).
■
The switch must be properly connected to the network.
Using the HP Download Manager:
■
At a minimum, use a 386 8-megabyte IBM-compatible PC with a network
interface.
■
Obtain software and instructions from HP’s BBS or World Wide Web site.
(Refer to the “Customer Support Services” section in appendix G, “Trou-
bleshooting”.)
You can access Download Manager in the HP AdvanceStack Assistant net-
work management application by clicking the right-side mouse button on the
background topology view.
Using the HP Update Utility:
■
Use a PC with a direct-connect RS-232 serial cable.
■
Obtain the update utility and refer to the instructions in the readme.txt
file included with the utility. The utility is in a compressed, self-extracting
file available free from World Wide Web site or HP’s BBS. (Refer to the
“HP Customer Support Services” card at the front of this manual.)
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File Transfers
Downloading an Operating System
Using TFTP To Download the OS File
This procedure assumes that an OS file for the switch has previously been
stored on a TFTP server accessible to the switch. (The OS file is typically
available from HP’s electronic services—refer to the card at the front of this
manual.) Before you use the procedure, do the following:
■
■
■
Determine the IP or IPX address of the TFTP server in which the OS file
has been stored.
If VLANs are configured on the switch, determine the name of the VLAN
in which the TFTP server is operating.
Determine the name of the OS file stored in the TFTP server for the switch
(for example, B_03_01.swi).
1. In the Main Menu, select Download OS. You will then see this screen:
This line appears onlyif
VLANs are configured.
Figure 8-1. The Download OS Screen (Default Values)
2. Press [E] (for Edit).
3. With the Protocol field highlighted, use the Space bar to select either
IP or IPX, depending on the protocol in use in your network.
4. Highlight the TFTP Server field and type in the IP or IPX address of
the TFTP server in which the OS file has been stored.
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File Transfers
Downloading an Operating System
5. If VLANs are configured, highlight the VLAN field. Then use the Space
bar to select the VLAN in which the TFTP Server is operating.
6. Highlight the Remote File Name field, then type the name of the OS
file. If you are using a UNIX system, remember that the filename is case-
sensitive.
7. Press [Enter], then [X] (for eXecute) to begin the OS download. The
following screen then appears:
Example of a TFTP
Server Address
Example ofa Remote
File Name on a TFTP
Server
Figure 8-2. Example of the Download OS Screen During a Download
8. A “progress” bar indicates the progress of the download. When the entire
operating system has been received, all activity on the switch halts and
the following message appears:
WRITING SYSTEM SOFTWARE TO FLASH, BACK SOON
After the system flash memory has been updated with the new operating
system, the switch reboots itself and begins running with the new operat-
ing system.
9. To confirm that the operating system downloaded correctly:
a. Select Status and Countersfrom the Main Menu
b. Select Switch Information from the Status and Countersscreen.
c. Check the OS Version line.
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File Transfers
Downloading an Operating System
Switch-to-Switch Download
If you have two or more Switch 800Ts and/or the B-version of the Switch 2000
(HP J3100B) networked together, you can download the OS software from
one switch to another by using the Download OS feature in the switch console
interface. (The Switch 800T and the B-version of the Switch 2000 use the same
OS.) To do so:
1. Go to the Download OS screen in the switch to receive the download.
2. Enter the IP or IPX address of the remote switch containing the OS you
want to download.
3. Enter “OS” for the Remote File Name.
4. Execute the download.
No te
The “A” version of the Switch 2000 uses OS software that is different from the
OS software used by the “B” version of the Switch 2000 and the Switch 800T.
For this reason, transferring OS software between an “A”version of the Switch
2000 and either a Switch 800T or a “B” version of the Switch 2000 is not
supported.
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File Transfers
Troubleshooting TFTP Downloads
Troubleshooting TFTP Downloads
If a TFTP download fails, the Download OS screen indicates the failure.
Message IndicatingTFTP
Download Failure
Figure 8-3. Example of Message for Download Failure
To find more information on the cause of a download failure, examine the
messages in the switch’s Event Log. (See “Event Log” on page 4-15.)
Some of the causes of download failures include:
■
Wrong protocol specified for the Protocol parameter
■
Incorrect or unreachable address specified for the TFTP Server parame-
ter. This may include network problems.
■
■
Incorrect name specified for the Remote File Name parameter, or the
specified file cannot be found on the TFTP server. This can also occur if
the TFTP server is a Unix machine and the case (upper or lower) for the
filename on the server does not match the case for the filename entered
for the Remote File Name parameter in the Download OS screen.
One or more of the switch’s IP or IPX configuration parameters are
incorrect.
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File Transfers
Troubleshooting TFTP Downloads
■
■
For a Unix TFTP server, the file permissions for the OS file do not allow
the file to be copied.
Another console session (through either a direct connection to a terminal
device or through Telnet) was already running when you started the
session in which the download was attempted.
No te
If an error occurs in which normal switch operation cannot be restored, the
switch automatically reboots itself. In this case, an appropriate message is
displayed in the copyright screen that appears after the switch reboots. You
can display the same information by selecting the Advanced Commands
option from the Main Menu and executing the History command.
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File Transfers
Transferring Switch 800T Configurations
Transferring Switch 800T Configurations
You can use the following commands to transfer Switch 800T configurations
between the switch and a PC or Unix workstation.
Command
Function
Get
Download a Switch 800T configuration file from a networked PC or Unix
workstation using TFTP.
Put*
ZGet
Upload a Switch 800T configuration to a file in a networked PC or Unix
workstation using TFTP.
Uses a Zmodem-compatible terminalemulationprogramtodownloada Switch
800Tconfigurationfile froma PCor Unixworkstationconnectedtothe switch’s
console port (either directly or via a modem).
ZPut*
Uses a Zmodem-compatible terminal emulation program to upload a Switch
800T configuration to a file in a PC or Unix workstation connected to the
switch’s console port (either directly or via a modem).
*Can also be used to send the output of certain commands to a file on another device. Refer
to chapter 6, “Using the Advanced Commands”.
Using Get and Put To Transfer a Configuration Between the
Switch and a Networked PC or Unix Workstation
To use Get or Put, you need the following:
■
■
The IP or IPX address of the remote PC or Unix workstation that is acting
as a TFTP server
The name assigned to the configuration file you will use on the remote PC
or Unix workstation
No te
Get or Zget overwrites the switch’s current configuration with the downloaded
configuration. The switch then automatically reboots itself.
1. From the Main Menu select Advanced Commands line.
2. At the command prompt, execute one of the following commands:
To upload a configuration to a file on a PC or Unix workstation:
put IP_address CONFIG remote_file
put IPX_address CONFIG remote_file
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File Transfers
Transferring Switch 800T Configurations
To download a configuration from a file on a PC or Unix workstation:
get IP_address CONFIG remote_file
get IPX_address CONFIG remote_file
where: IP addressor IPX addressis the address of the PC or Unix
workstation in which the configuration is to be stored.
remote_fileis the name of the configuration file in the PC or
Unix workstation
Using ZGet and ZPut To Transfer a Configuration Between
the Switch and a PC or Unix Workstation
The PC or workstation must be operating as a VT100 or ANSI terminal, and
can be connected either directly or via a modem to the switch’s console port.
Also, the PC or workstation must be running a Zmodem-compatible terminal
emulation program. If a manager password has been set, you must log on to
the switch using that password in order to execute the Zget or Zput commands.
No te
ZGet overwrites the switch’s current configuration with the downloaded
configuration. The switch then automatically reboots itself.
To use ZGet or ZPut, you need the name assigned to the configuration file on
the PC or workstation.
1. On the PC or workstation, start the Zmodem-compatible terminal emula-
tion program, then follow the instructions provided with the program to
prepare for a file transfer.
2. From the switch’s Main Menu select Advanced Commands line.
3. At the command prompt, execute one of the following commands:
To upload a configuration to a file on a PC or Unix workstation:
zput config remote_file [overwrite] [dos/unix]
To download a configuration from a file on a PC or Unix workstation:
zget config remote_file [dos/unix]
where: remote_fileis the name of the file in which the configuration
is stored
[overwrite] is one of the following optional values:
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File Transfers
Transferring Switch 800T Configurations
0
1
(the default) allows a new file to be created, but
does not allow an existing file to be overwritten.
creates a new file or overwrites an existing file.
[dos/unix] is one of the following optional values:
0
1
(the default) specifies the DOS file format.
specifies the Unix file format.
If the PC or workstation does not respond to a ZPut or ZGet command
within approximately 70 seconds, the command times out and control
returns to the Advanced Commandline.
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9
Troubleshooting
■
■
■
■
■
■
■
Troubleshooting Approaches
Diagnosing with the LEDs
Installation Problems
Unusual Network Activity
Diagnostic Tests
Customer Support Services
Replacement Instructions
Troubleshooting Approaches
There are four primary ways to diagnose switch problems:
■
■
■
■
Checking the LEDs
Checking the installation
Checking the cables
Checking the Console RS-232 interface
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Troubleshooting
Diagnosing with the LEDs
Diagnosing with the LEDs
Most problems with the switch can be diagnosed using the LEDs on its front
panel. This section describes:
■
■
The normal LED pattern when the switch is being self-tested
The LED patterns that indicate error conditions on the switch
LED Pattern During Self-Test
Whenever the switch is powered on or reset, it performs a self-diagnostic test.
During the self-test:
1. All LEDs turn on momentarily, then all but the Power, Self-test, and Fault
LEDs turn off.
2. The Power LED remains on; the Self Test and Fault LEDs remain on for
less than one minute.
When the self-test completes successfully, the LEDs go into their normal
operational states. If a switch hardware fault exists, the switch will not
complete self-test. This will be indicated by the Fault LED.
The tables on the following pages list the switch’s LEDs, their possible states,
and diagnostic tips to resolve any error conditions.
LED Error Indications
System LEDs
Port LEDs
Figure 9-1. System and Port LEDs
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Troubleshooting
Diagnosing with the LEDs
LED Error Indications
LED
State
Diagnostic Tip
Power
(green)
Off
If the Power LED is off and the fan is not running, verify that the power cord is plugged
intoan active power source and tothe switch.Make sure these connections are snug.
Try power cycling the switch by unplugging and plugging the switch back in.
If the Power LED is still not on, verify that the AC power source works by plugging
another device into the outlet. Or try plugging the switch into a different outlet or try
a different power cord.
If this condition persists, the switch may have failed. Call your HP-authorized LAN
dealer or HP representative for assistance.
On then
turns off
Make sure the power cord connection is snug into the switch and into the power
outlet.
Verify that the fans are running and that the chassis intake vents and exhaust ports
are clear, and that the area around them is unobstructed.
Check the power outlet for power losses or surges.
If this condition persists, the switch may have failed. Call your HP-authorized LAN
dealer or HP representative for assistance.
Fault
(orange)
Remains On The Fault LED should remain off during normal operation. If it is on, a self-test failure
or a software error has occurred. Power cycle the switch. If this condition persists,
the switch may have failed. Call your HP-authorized LAN dealer or HP representative
for assistance.
Flashing
The switch is operable, but a fault condition has occurred inthe switch or an installed
module, a fan, or a connected redundant power supply (RPS). Check the event log for
an indication of the problem source.
RPS
Off
Should be on if an RPS is installed and operating properly.
(green)
If there is an RPS problem, this LED is off and the Fault LED flashes. (Check the Event
Log in the console user interface for further information on the failure.) Check the
connectionbetween the RPS and the power outlet. Verify that power is being supplied
to the power outlet. Remove and then reinstall the RPS according to the
documentation shipped with the RPS. If the fault condition continues, schedule down
time and replace the RPS.
Self-Test
(green)
On
The Self-test LED should be steadily on (for up to approximately 60 seconds) only
during the power-on and reset self-tests.
Flashing
The Self-test LED flashes simultaneously with the Fault LED if the switch has failed its
self-test. Check the Event Log. (It also flashes during a reset if the Config Clear button
is pressed.)
If the self-test LED remains on at other times, especially in conjunction with the Fault
LED, the switch may have failed. Call your HP authorized LAN representative for
assistance.
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Troubleshooting
Diagnosing with the LEDs
LED Error Indications (continued)
LED
State
Diagnostic Tip
Security
Flashing
Should remain off during normal operation.
(orange)
Flashes if an SNMP authentication failure has occurred or if a traffic filter violation
has occurred. Use the ClearLED command in the console interface to clear this
condition. (ClearLEDturns offthe SecurityLEDifthe conditioncausingthe LEDtoflash
has been corrected.)
1 through 8
(Port Enabled)
(green)
Off
On
The port is not enabled or the link is not operational.
The port is enabled and the link is operational.
The ports onthe Switch800Tare preconfiguredtooperate as MDI-Xwiththe 100Base-
TX J3192A (or B) Transceiver Modules installed. In this case, ensure that the port on
the connected hub or other switch is either an MDI port connected by a straight-
through cable, or (if the port on the other device is an MDI-X port) that a crossover
cable is used to connect them.
Rx and Tx
Port Receive
and Transmit
(green)
Off
Off
The Rx and TxLEDs shouldbe on or flashing as packets are forwarded from or to other
ports. If the LEDs do not flash, check the Port Enabled (1 through 8) LED. If it is off, the
port is not enabled. If the Port Enabled LED is on, then verify that the physical network
configuration is correct. Check the console interface for proper configuration and
operation.
Fdx
(Full Duplex)
If the Port Enabled LED (above) is on, then the Full Duplex (Fdx) LED should be on for
ports that have been configured for full-duplex mode. The Fdx LED should be off for
ports thatare disabled or have been configured forhalf-duplexoperation (the default).
Check the port configuration in the console interface to ensure that the Mode
parameter for the port has been set to Full Duplex.
Note: Full-duplex should be used only if it is also configured and supported on the
media and in the device to which the port is connected.
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Troubleshooting
Installation Problems
Installation Problems
By carefully following the installation procedures described in chapter 1,
“Installation”, you can avoid most problems caused by improper installation
of the switch or one of its components.
Incorrect Hardware Installation
Incorrectly installing the switch or power cord can result in one or both of
these components malfunctioning or not functioning at all. If one or both of
these components appear not to be functioning, recheck the installation
procedure and, if necessary, reinstall the component correctly.
If the switch will not power on or intermittently resets itself, the switch’s
processor may be faulty or the hardware/software setup may be wrong.
Console RS-232 Problems
If the switch powers on but the console interface will not start up, follow these
steps:
■
■
■
Check the external Console RS-232 connection. If you are not using a
modem connection, ensure that the cable is a null modem cable.
Check the console device settings against the settings listed in appendix
C, Sample Console Configurations.
Try a different baud rate setting in your console device. The switch’s
default setting, “Speed Sense”, automatically matches the Console RS-232
baud rate to the rate used by your PC, terminal, or modem. (However, if
the Baud Rate parameter in the switch’s Serial Link screen has been
configured to a specific value, the Speed Sense operation is disabled.) The
switch operates at 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400 bps.
■
If you are using a terminal emulation program, try exiting the program and
then restarting it.
If the diagnostic information does not appear, or is unintelligible, try changing
the baud rate on your terminal or PC terminal emulator. Try 9600 first. If the
problem continues, try each of the other rates listed above.
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Troubleshooting
Installation Problems
Cabling Problems
A high percentage of network problems are due to faulty cabling. Cabling
problems usually result in the failure of a switch to connect to a network, a
hub, or the end nodes.
Connections
All cables attached to the switch should be checked to see that they are
properly connected.
If a PC or network device cannot communicate through the switch, check the
following:
■
■
The cable and its connection
The LED that corresponds to the network device
If the PC or network device establishes a connection with the switch (the port
LED is on), but does not communicate reliably through the switch, check the
cable and the connection.
Non-standard Cables
Miswired cables may cause numerous network collisions, and can seriously
impair network performance. Before connecting cables into your network,
you should verify that they comply with the applicable standards. For a list of
compatible cables and a description of the pin-outs for each port on the switch
(which can be used to confirm the compatibility of unlisted cables), see
appendix A, “Cables and Connectors”.
Topology
It is important to make sure you have a valid network topology. Common
topology faults include excessive cable length and excessive repeater delays
between nodes. Refer to the following sources for further topology
information:
■
For connect ing t he Swit ch 800T to other swit ches and hubs: HP
AdvanceStack Switch 800T Connectivity Quick Reference (shipped with
the switch)
■
For net wor k design guidelines: An Introduction to Ethernet LAN
Switches and Designing Switched Networks, both of which are included
on the CD shipped with your switch
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Troubleshooting
Unusual Network Activity
■
For physical layer t opology guidelines:
Designing HP AdvanceStack Workgroup Networks available on the CD
shipped with your switch.
Unusual Network Activity
Network activity that exceeds accepted norms often indicates a hardware
problem with one or more of the network components, possibly including the
switch. Unusual network activity is usually indicated by the LEDs on the front
of the switch or measured with the ASCII console interface or with a network
management tool such as the HP AdvanceStack Assistant. Refer to “Diagnos-
ing with LEDs”earlier in this chapter for information on using LEDs to identify
unusual network activity.
Duplicat e MAC Addresses Across VLANs. Duplicate MAC addresses on
different VLANs are not supported and can cause VLAN operating problems.
There are no explicit events or statistics to indicate the presence of duplicate
MAC addresses in a VLAN environment. However, one symptom that may
occur is that a duplicate MAC address can appear in the Port Address Table
of one port, and then later appear to be linked to another port. (This can also
occur in a LAN where there are redundant paths between nodes and Spanning
Tree is turned off.) For more information, refer to “VLAN Restrictions”on page
7-21.)
Diagnostic Tests
If you believe that the switch is not operating correctly, you can test the
switch’s circuitry by removing, then reinstalling the switch’s power cord.
This procedure power-cycles the switch and executes the switch self-test. If
the Fault LED stays on, the switch may have failed its self-test. See “Diagnosing
with the LEDs” earlier in this chapter to interpret the LED display.
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Troubleshooting
Customer Support Services
Testing Twisted-Pair Cabling
The twisted-pair cable attached to the switch and used for 100Base-T connec-
tions must be compatible with the IEEE 802.3u 100Base-TX standard for
Catalog 3 cable. Twisted-pair cable attached to the switch and used for 10Base-
T connections must be compatible with the IEEE 802.3 10Base-T standard. To
verify that your cable is compatible with this standard, use a qualified cable
test device. HP also offers a wire testing service. Contact your HP-authorized
LAN dealer or your local HP sales office for more information.
Testing End-to-End Network Communications
Both the switch and the cabling can be tested by running an end-to-end
communications test — a test that sends known data from one network device
to another through the switch — such that you can verify that the data was
correctly transmitted between the devices. For example, if you have two PCs
on the network that have HP LAN adapter cards, you can use the “Link Test”
option from the card’s test program to verify the entire communication path
between the two PCs.
See your LAN adapter card’s manual for information on running an end-to-end
communication test.
Customer Support Services
Hewlett-Packard offers switch support 24 hours a day, seven days a week
through the use of automated electronic services including:
■
■
■
■
■
■
World Wide Web
Hewlett-Packard FTP Library Service on the Internet
CompuServ
Hewlett-Packard BBS
HP FIRST FAX Retrieval Service
HP Network Phone-In Support (NPS)
These services are described on the card at the front of this manual.
Your reseller can also provide you with assistance, both with services that
they offer and with services offered by Hewlett-Packard.
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A
Cables and Connectors
■
■
■
■
Recommended Cables
Twisted-Pair Cable/Connector Pin-Outs
Twisted-Pair Cable Pin Assignments
RS-232 Connector and Cable Pin-Out
This appendix lists cables that have been tested and verified for use with the
Switch 800T. It also includes minimum pin-out information so, if you wish to
use an unlisted cable, you can verify that the cables used in your installation
are correctly wired. Note that each pin-out diagram does not necessarily
match the pin-out for the corresponding HP cable, but cables manufactured
to follow the minimum pin-out will function correctly.
No te
Incorrectly wired cabling is the most common cause of problems for LAN
communications. HP recommends that you work with a qualified LAN cable
installer for assistance with your cabling requirements.
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Cables and Connectors
Recommended Cables
Recommended Cables
Cable Function
Port Type on PC, Cable Type
or Modem
Specification or HP Product Number
Network connections to the switch:
Transceiver-based RJ-
45 connection from
switch to networked
device
—
Twisted-pair “straight-
through” and “cross-
over” type cable
Hewlett-Packard recommends category
5 or better unshielded twisted-pair (UTP)
cable. (Category 5 cable is required for
100Base-T twisted-pair connections.)
Transceiver-based SC
fiber-optic connection
from switch to
—
Multimode Fiber-Optic
1300nm wavelength cable conforming to
the ISO/IEC793-2 type B1and ITU-TG.652
standards
networked devices
Console PC connection to the switch’s Console RS-232 port:
9-pin male
RS-232-C9-pinfemale to RS-232-C cable provided with the switch
9-pinfemale nullmodem (HP p/n 5182-4794)
or “crossover” cable
Connecting the PC
directly to the switch’s
Console RS-232 port
25-pin male
RS-232-C9-pinfemale to HP 24542H
25-pin female null
modem or “crossover”
cable
Connecting a modem to
the switch’s Console
RS-232 port
25-pin female
RS-232-C9-pinfemale to HP 24542M
25-pin male standard
modem or “straight-
through” cable
You can contact your HP-authorized dealer or (in the U.S.A.) call HP at
1-800-538-8787 to order these parts.
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Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs
Twisted-Pair Cable/Connector Pin-Outs
Twisted-Pair Cable from Switch-Based MDI-X Module or
Transceiver to an MDI Networked Device
To connect PCs or other MDI network devices to an MDI-X port on the switch,
use a “straight-through” cable. The twisted-pair wires must be twisted through
the entire length of the cable. The wiring sequence must conform to AT&T
258A (not USOC). See “Twisted-Pair Cable Pin Assignments” on page A-5 for
a listing of the signals used on each pin.
No te
Pins 1 and 2 must be wired to a twisted pair.
Pins 3 and 6 must be wired to a twisted pair.
Pins 4, 5, 7, and 8 are not used in this application, although they may
be wired in the cable.
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Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs
MDI-X Hub Port
To connect an MDI-Xport on a hub to the Switch 800T, use a “crossover” cable.
The twisted-pair wires must be twisted through the entire length of the cable.
The wiring sequence must conform to AT&T 258A (not USOC). See “Twisted-
Pair Cable Pin Assignments” on page A-5 for a listing of the signals used on
each pin.
No te
Pins 1 and 2 on connector “A” must be wired as a twisted pair to pins 3 and 6
on connector “B”.
Pins 3 and 6 on connector “A” must be wired as a twisted pair to pins 1 and 2
on connector “B”.
Pins 4, 5, 7, and 8 are not used in this application, although they may be wired
in the cable.
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Cables and Connectors
Twisted-Pair Cable Pin Assignments
Twisted-Pair Cable Pin Assignments
Twisted-Pair Straight-Through Cable for 10/100Base-T
Connection From the Switch to a Networked Device
End Node (NIC or Transceiver)
Switch End (MDI-X)
or Other MDI Port
Signal
Pins
Pins Signal
(receive +)
(receive –)
(transmit +)
(transmit –)
1
2
3
6
1
2
3
6
(transmit +)
(transmit –)
(receive +)
(receive –)
Twisted-Pair Crossover Cable for Module-Based
10/100 Base-T Connection from the Switch 800T to an
MDI-X Port
Switch Port or Other
Switch End (MDI-X)
MDI-X Port
Signal
Pins
Pins Signal
(receive +)
(receive –)
(transmit +)
(transmit –)
1
2
3
6
3
6
1
2
(transmit +)
(transmit –)
(receive +)
(receive –)
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Cables and Connectors
RS-232 Connector and Cable Pin-Outs
RS-232 Connector and Cable Pin-Outs
The switch’s Console RS-232 connector is wired as if it is a terminal (DTE),
ready to be connected to a modem (DCE). The Switch 800T includes a null
modem cable that can be used to directly connect a PC to be used as the
console. To connect a modem to the switch, use a standard RS-232-C modem
cable.
This section provides pin assignment information for the cables you can use
on the RS-232 port.
Pin-Out for Switch’s RS-232 Port Connector
PIN
1
US
CCITT
109
104
103
108
102
107
105
106
125
DIN
M5
D2
D1
S1
DCD
Rx
2
3
Tx
4
DTR
GND
DSR
RTS
CTS
RI
5
–
6
M1
S2
7
8
M2
M3
9
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Cables and Connectors
RS-232 Connector and Cable Pin-Outs
RS-232-C “Null Modem” Cable
This cable type is supplied with the switch for connection to a PC having a
9-pin connector.
PC End
9-pin male
Switch End
9-pin male
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD
Rx
Tx
DTR
GND
DSR
RTS
CTS
RI
Minimum Cable Pin-out for Direct Console Connection
PC End
9-pin male
Switch End
9-pin male
2
3
5
1
4
6
7
8
2
3
5
Rx
Tx
GND
A-7
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Cables and Connectors
RS-232 Connector and Cable Pin-Outs
RS-232 Modem Cable
Modem
(DCE) End
Switch End
25-pin male
9-pin male Signal
2
3
2
7
8
6
5
1
4
9
Tx
3
Rx
4
RTS
5
CTS
6
DSR
GND
CD OR DCD
DTR
RI
7
8
20
22
23
DRS—typically on V.24 (European) modems
(not connected)
A-8
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B
Specifications
Physical
Width:
Depth:
Height:
44 cm (17.3 in)
30 cm (11.8 in)
6.3 cm (2.5 in)
Weight (with four factory-
installed HP J3192A
Transceiver Modules
Installed):
4.3 kg (9.5 lbs)
Electrical
AC voltage:
100 - 127 volts
200-240 volts
0.75A max
50/60 Hz
Maximum current:
Frequency range:
1.5A max
50/60 Hz
Environmental
Operating
Non-Operating
Temperature:
0°C to 55°C (32°F to 131°F)
15% to 95% at 40°C (104°F)
-40°C to 70°C (-40°F to 158°F)
15% to 90% at 65°C (149°F)
Relative humidity:
(non-condensing)
Maximum altitude:
4.6 km (15,000 ft)
4.6 km (15,000 ft)
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Specifications
Connectors
The RS-232-C console port conforms to V.22 bis.
Electromagnetic
Emissions:
FCC part 15 Class A
EN 55022 / CISPR-22 Class A
VCCI Level I
Complies with Canadian EMC Class A requirements.
Immunity:
See the Declaration of Conformity for details at the end of the
Regulatory Statements in this guide.
Safety
EN60950 (1992) + A1, A2 / IEC950: 1991 + A1, A2
UL 1950
CSA 950
NOM-019-SCFI-1993
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C
Sample Console Configurations
Windows 3.1 Terminal Application
You can use a PC with the Windows 3.1 Terminal Application for console
management access to the switch. This section provides an example of the
configuration settings to use with the Windows 3.1 Terminal Application.
Option Settings:
■
■
Terminal Emulation: DEC VT-100 (ANSI)
Terminal Preferences:
•
Terminal Modes:
–
–
Line-Wrap: On
Sound: On
•
•
CR > CR/LF: No
Use Function, Arrow, Ctrl keys for Windows: NO
Communications:
■
■
■
■
■
■
9600 Baud or 19.2 baud recommended
No Parity
8 bits
1 stop bit
Xon/Xoff
Carrier Detect
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Sample Console Configurations
Procomm Plus V2.01
Procomm Plus V2.01
Terminal Options
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Terminal Emulation: VT-100
Duplex: FULL
Software Flow Control: Xon/Xoff
Hardware Flow Control: Off
Screen Scroll: ON
CR Translation: CR
BS Translation: NON-DESTRUCTIVE
Break Length: 350
Enquiry: CIS B
ANSI 7 or 8 bit command: 7 bit
ASCII Protocol Options
Echo Locally: NO
Expand Blank Lines: NO
Expand Tabs: YES
Clear pacing: 1 ms
Line pacing: 1
Pace character: 0
Strip 8 bit: NO
ASCII download timeout: 10
CR translation (upload): NONE
LF translation (upload): NONE
CR translation (download): NONE
LF translation (download): NONE
C-2
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Sample Console Configurations
Other Terminal Emulators
Other Terminal Emulators
For other communication programs, use the following table as a configuration
guide:
Option
Setting
Baud rate
300, 600, 1200, 2400, 9600, 19200, or 38400.
(9600 or 19200 recommended)
Parity
None
8, 1
Data bits and stop bits
Autobaud upon break
Handshaking
On
None
Terminal emulation
VT100. For Windows, disable the “Use Function, Arrow,
and Ctrl Keys for Windows” option, located in the
Terminal Preference menu.
Duplex
Full
Soft flow control (XON/XOFF)
Hard flow control (RTS/CTS)
Line wrap
On (input and output)
Off
On
Screen scroll
On
CR translation
CR
Backspace (BS)
translation
Destructive
Break length (milliseconds)
Enquiry (ENQ)
350
Off
Off
80
EGA/VGA true underline
Terminal width
ANSI 7 or 8 bit commands
7
C-3
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D
Switch Reference
Front of Switch
All LEDs used by the Switch 800T are on the front panel. During the power-
on or reset cycles, all LEDs are on.
Switch Status LEDs
Power LED
RPS LED
Fault LED
Self-test LED
Security LED
Figure D-1. Example of Status LEDs for the Switch 800T
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Switch Reference
Front of Switch
LED
State
Meaning of LED
Power
(green)
on
The switch is receiving power from the main power supply or
from the optional RPS (redundant power supply).
The switch is not receiving power. See chapter 9,
off
“Troubleshooting”.
Fault
(orange)
on
(steady)
Either the switch hardware has failed the self-test or a software
error has occurred and auto-reboot is off. In this case, push the
Reset button. See chapter 9, “Troubleshooting”.
Also operates in conjunction with the Self-test LED during the
power-on and reset self-test cycles. See “Self-test”, below.
flashing
The switch is operable, but a fault condition has occurred in the
switch or an installed transceiver module, a fan, or a redundant
power supply(RPS—if connected). The corresponding fault LED
for the affected component will flash simultaneously. Refer to
chapter 9, “Troubleshooting”.
RPS
(green)
on
An (optional) Redundant Power Supply (RPS) is connected and
functioning properly.
off
No RPS is connected to the switch, or the RPS has failed. See
chapter 9, “Troubleshooting”.
Self-test
off
Normal operation, except as described below.
(green)
on
(steady)
Power-on or reset self-test. During this time the Fault LED is also
flashing
Indicates one of the following:
•
A self-test failure has occurred, but the switch remains
partially operable.
•
The Config Clear button is being pressed during a reset.
Release the button.(Referto“ResetandConfigClearButtons”
on page D-4.)
Security
(orange)
flashing
Either an SNMP Authentication failure or a traffic filter violation
has occurred. Refer to chapter 9, “Troubleshooting”.
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Switch Reference
Front of Switch
Port Status LEDs
Port Full-Duplex
(Fdx)
Port Enabled
Port Transmit (TX)
Port Receive (Rx)
Figure D-2. Example of Port Status LEDs for the Switch 800T
LED
State
Meaning of LED
1 through 8 on
(port
The indicated port on the indicated transceiver module is
enabled and the link is operational.
enabled
LED)
(green)
Tx
(green)
on or
flashing
The indicated port is transmitting packets.
The indicated port is receiving packets.
Rx
on or
(green)
flashing
Fdx
(green)
on
The indicated port is enabled and configured for full-duplex
operation.
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Switch Reference
Front of Switch
Button
Reset
Action
Performs a software and hardware reset, including a hardware self-test. (This
achieves the same result as disconnecting the power from the switch, then
reconnecting it.)
Config
Clear
When used as described below, causes the switch to delete the current
configuration, and to reboot to a default configuration. This resets the switch
to the factory default and is a drastic action that interrupts switch operation
and can seriously diminish or even halt network operation. Depending on the
current network operating condition, it may be best to avoid a reset until you
can schedule system downtime. Some reasons for a reset include:
•
The switch appears tobe malfunctioning, and pressing just the Reset button
does not clear the problem.
•
Several elements in the configuration may be inconsistent with each other
and it is more efficient tostartwith the defaults thantotrytoadjust individual
parameters.
To clear the current configuration and reboot the switch:
1.
2.
Press and release the Reset button. All LEDs turn on momentarily.
While all LEDs are turned on, press and hold the Config Clear button until the
Self-test LEDbegins flashing, thenimmediatelyrelease the ConfigClear button.
If a console is connected, you will see the following message when the switch
has reset itself to the factory default configuration and rebooted.
Waiting for speed sense. Press enter to continue.
3.
Press [Enter] to restart the console.
To clear the password(s)
Press and release the Config Clear button.
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Switch Reference
Front of Switch
Console RS-232 Port
The switch’s Console RS-232 port is a standard RS-232 serial link used to
connect a Windows-based PC, a terminal, or a modem. (For pinouts, refer to
appendix A, Cables and Connectors.)
Console RS-232 Port
Figure D-4. Front Panel of the Switch 800T
D-6
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Switch Reference
Back of the Switch
Back of the Switch
No te
If you use t he opt ional r edundant power supply ( RPS) do not use t he
power cor d t hat plugs int o the power cord recept acle ( figur e D-5) .
Power Cord
Receptacle
RPS Connector
Figure D-5. Back Panel of the Switch 800T
Power Connector
The Switch 800T does not have a power switch; it is powered on when the
power cord is plugged into the power connector. The switch’s power supply
automatically adjusts to any AC power source between 90 and 240 volts. There
are no voltage or frequency range settings needed.
The HP J2962 AdvanceStack Redundant Power Supply (RPS)
The HP J2962 AdvanceStack Redundant Power Supply is an optional power
supply you can connect to your Switch 800T instead of the switch’s own power
cord to provide a redundant power source. That is, the RPS replaces the
switch’s single AC power supply and single DC power converter with a dual
AC power supply and dual DC power converter. For more on using the
optional RPS with the Switch 800T, refer to “Connect a Power Supply” on page
1-16, and to the documentation provided with the RPS.
D-7
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E
BOOTP Operation
Overview
Bootp is used to download configuration data from a Bootp server to the
switch or to a VLAN configured on the switch. Either a minimal IP configura-
tion or a full configuration can be retrieved from the Bootp server.
No te
The Switch 800T supports only the DHCP (Dynamic Host Configuration
Protocol) implementations that are backwards compatible with Bootp.
The Bootp Process
Whenever the switch reboots with the IP Config parameter set to Use Bootp
(the default), Bootp requests are broadcast on all local networks. When the
Bootp server receives the request it searches its Bootp database for a record
entry that matches the MAC address in the Bootp request. If a match is found,
the configuration data in the associated database record is returned to the
switch. For most Unix systems, the Bootp database is contained in the
/etc/bootptab file.
E-1
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BOOTP Operation
Bootp Database Record Entries
Bootp Database Record Entries
An entry in the Bootp table file /etc/bootptab to update an IP address
and subnet mask to the Switch 800T or a VLAN configured in the switch would
be similar to this entry:
j3245switch:\
ht=ether:\
ha=080009123456:\
sm=255.255.248.0:\
lg=11.22.33.44:\
hn:\
ip=55.66.77.88:\
vm=rfc1048
An entry in the Bootp table file /etc/bootptab to tell the switch or VLAN
where to obtain a configuration file download would be similar to this entry:
j3245switch:\
ht=ether:\
ha=080009123456:\
sm=255.255.248.0:\
lg=11.22.33.44:\
hn:\
ip=55.66.77.88:\
T144=”switch.cfg”:\
vm=rfc1048
where:
j3245switch is a user-defined symbolic name to help you find the correct section of the
bootptab file. If you have multiple switches that will be using Bootp to get their
IP configuration, you should use a unique symbolic name for each switch.
ht
is the “hardware type” .For the HP AdvanceStackSwitch800T, set this to ether
(for Ethernet). This tag must precede the ha tag.
ha
is the “hardware address”. Use the switch's (orVLAN's)12-digitMACaddress.
is the subnet mask of the subnet in which the switch (or VLAN) is installed.
TFTP server address (source of final configuration file)
sm
lg
hn
send nodename (boolean flag, no “=value” needed)
ip
is the IP address to be assigned to the switch (or VLAN).
T144
vm
is the vendor-specific “tag” identifying the configuration file to download.
is a required entry that specifies the Bootp report format. For the HP
AdvanceStack Switch 800T, set this parameter to rfc1048.
E-2
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BOOTP Operation
Configuring Bootp
Configuring Bootp
In its default configuration, the switch is configured for Bootp operation.
However, if an IP address has previously been configured or if the IP Config
parameter has been set to Disabled, then you willneed to use this procedure
to reconfigure the parameter to enable Bootp operation.
This procedure assumes that a Bootp database record has already been
entered into an appropriate Bootp server, and that the necessary network
connections are in place.
To configure t he swit ch or a VLAN for Boot p:
1. In the Main Menu, select Configuration.
2. In the Configuration screen select Internet (IP) Service.
3. Press [E] (for Edit mode), then use [v] to move the cursor to the
IP Config parameter field.
4. Use the Space bar to select the Use Bootp option for the IP Config
parameter. (This disables access to the IP Address, Subnet Mask, and
Gateway parameters.)
5. Press [Enter] to exit from edit mode, then press [S] to save the configuration
change.
When you reboot the switch with Bootp enabled, it will do one of the following:
■
Receive a minimal configuration (IP address and subnet mask).
■
If the reply provides information for downloading a configuration file, the
switch then uses TFTP to download the file from the designated source,
then reboots itself. (This assumes that the switch or VLAN has connectiv-
ity to the TFTP file server specified in the Bootp database configuration
record and that the Bootp database record is correctly configured.)
E-3
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F
MAC Address Management
Overview
The Switch 800T assigns MAC addresses in the following three areas:
■
Default MAC address assigned at the factory
■
Automatically assigned MAC address(es) corresponding to any VLANs
you configure in the switch
■
The Spanning Tree Protocol (STP) uses either the default MAC address
for the switch or, if VLANs are configured, the MAC addresses automati-
cally assigned to the VLANs.
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MAC Address Management
Switch (Default) MAC Address
Switch (Default) MAC Address
A default MAC address is assigned to each Switch 800T at the factory. This
address is on the label below the Console RS-232 port (shown below):
Label Showing
Default MAC Address
Figure F-1. Location of the Default MAC Address Assigned to the Switch
Ifthere are no VLANs configured on the Switch 800T, then the factory-assigned
MAC address is the same for all ports on the switch.
To display the MAC address assigned t o a port :
1. Select Status and Countersfrom the Main Menu.
2. Select Port Countersin the Statistics menu.
3. Select the desired port.
4. Select the Show detailsoption to display the port counter details for
the selected port. Included will be the MAC address assigned to that port.
If VLANs are configured, refer to “VLAN MAC Address” on page F-3.
F-2
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MAC Address Management
VLAN MAC Addresses
VLAN MAC Addresses
If you add VLANs to the Switch 800T, each VLAN is automatically assigned a
different MAC address. All ports in a particular VLAN will have the same MAC
address. To determine the MAC address assigned to a particular VLAN, display
the port data for any port assigned to that VLAN.
To display the MAC address and ot her dat a for a select ed port :
1. From the Main Menu, select Status and Counters.
2. Display the Port Countersscreen.
3. Select a port that is assigned to the VLAN for which you want to determine
the corresponding MAC address.
4. Select the Show detailsoption to display the port counter details for
the selected port. Included will be the MAC address assigned to that port
(and the corresponding VLAN).
Figure F-2. Example of the Port Counter Details for a Selected Port
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MAC Address Management
MAC Addresses (for Spanning Tree Operation)
MAC Addresses (for Spanning Tree
Operation)
switch. (This is the MAC address printed on the label on the front of the
switch.) When VLANs are configured, STP must be configured separately for
each VLAN. In this case, the MAC address assigned to each instance of STP is
the MAC address assigned to the corresponding VLAN. These addresses
appear in the Spanning Tree Information screen . Refer to the “Switch
(Default) MAC Address” on page F-2, or “VLAN MAC Addresses” on page F-3.)
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Safety and Regulatory Statements
Safety Information
Safet y Symbols.
Documentation reference symbol. Ifthe product is marked with this
symbol, refer to the product documentation to get more information
about the product.
WARNING
CAUTION
A WARNING in the manual denotes a hazard that can cause injury
or death.
A CAUTION in the manual denotes a hazard that can damage
equipment.
Do not proceed beyond a WARNING or CAUTION notice until you have understood the
hazardous conditions and have taken appropriate steps.
Grounding.
These are safety class I products and have protective earthing terminals.
There must be an uninterruptible safety earth ground from the main power
source to the product’s input wiring terminals, power cord, or supplied power
cord set. Whenever it is likely that the protection has been impaired,
disconnect the power cord until the ground has been restored.
For LAN cable grounding:
■
If your LAN covers an area served by more than one power distribution
system, be sure their safety grounds are securely interconnected.
■
LAN cables may occasionally be subject to hazardous transient voltages
(such as lightning or disturbances in the electrical utilities power grid).
Handle exposed metal components of the network with caution.
Servicing.
There are no user-serviceable parts inside these products. Any servicing,
adjustment, maintenance, or repair must be performed only by service-trained
personnel.
These products do not have a power switch; they are powered on when the
power cord is plugged in.
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Safety and Regulatory Statements
Informations concernant la sécurité
Informations concernant la sécurité
Symboles de sécurité
Symbole de référence à la documentation. Si le produit est marqué
de ce symbole, reportez-vous à la documentation du produit afin
d’obtenir des informations plus détaillées.
WARNING
CAUTION
Dans la documentation, un WARNING indique un danger
susceptible d’entraîner des dommages corporels ou la mort.
Un texte de mise en garde intitulé CAUTION indique un danger
susceptible de causer des dommages à l’équipement.
Ne continuez pas au-delà d’une rubrique WARNING ou CAUTION
avant d’avoir bien compris les conditions présentant un danger et
pris les mesures appropriées.
Cet appareil est un produit de classe I et possède une borne de mise à la terre.
La source d’alimentation principale doit être munie d’une prise de terre de
sécurité installée aux bornes du câblage d’entrée, sur le cordon d'alimentation
ou le cordon de raccordement fourni avec le produit. Lorsque cette protection
semble avoir été endommagée, débrancher le cordon d’alimentation jusqu’à
ce que la mise à la terre ait été réparée.
Mise à la terre du câble de réseau local:
■
si votre réseau local s’étend sur une zone desservie par plus d’un système
de distribution de puissance, assurez-vous que les prises de terre de
sécurité soient convenablement interconnectées.
■
Les câbles de réseaux locaux peuvent occasionnellement être soumis à
des surtensions transitoires dangereuses (telles que la foudre ou des
perturbations dans le réseau d’alimentation public). Manipulez les
composants métalliques du réseau avec précautions.
Aucune pièce contenue à l’intérieur de ce produit ne peut être réparée par
l’utilisateur. Tout dépannage, réglage, entretien ou réparation devra être
confié exclusivement à un personnel qualifié.
Cet appareil ne comporte pas de commutateur principal ; la mise sous tension
est effectuée par branchement du cordon d’alimentation.
Safety-2
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Safety and Regulatory Statements
Hinweise zur Sicherheit
Hinweise zur Sicherheit
Sicherheitssymbole.
Symbol für Dokumentationsverweis. Wenn das Produkt mit diesem
Symbolmarkiert ist, schlagen Sie bitte in der Produktdokumentation
nach, um mehr Informationen über das Produkt zu erhalten.
WARNING
CAUTION
Eine WARNING in der Dokumentation symbolisiert eine Gefahr, die
Verletzungen oder sogar Todesfälle verursachen kann.
CAUTION in der Dokumentation symbolisiert eine Gefahr, die das
Gerät beschädigen kann.
Fahren Sie nach dem Hinweis WARNING oder CAUTION erst fort, nachdem Sie den
Gefahrenzustand verstanden und die entsprechenden Maßnahmen ergriffen haben.
Dies ist ein Gerät der Sicherheitsklasse I und verfügt über einen schützenden
Erdungsterminal. Der Betrieb des Geräts erfordert eine ununterbrochene
Sicherheitserdung von der Hauptstromquelle zu den Geräteingabeterminals,
den Netzkabeln oder dem mit Strom belieferten Netzkabelsatz voraus. Sobald
Grund zur Annahme besteht, daß der Schutz beeinträchtigt worden ist, das
Netzkabel aus der Wandsteckdose herausziehen, bis die Erdung
wiederhergestellt ist.
Für LAN-Kabelerdung:
■
Wenn Ihr LAN ein Gebiet umfaßt, das von mehr als einem
Stromverteilungssystem beliefert wird, müssen Sie sich vergewissern,
daß die Sicherheitserdungen fest untereinander verbunden sind.
■
LAN-Kabel können gelegentlich gefährlichen Übergangsspannungen
ausgesetzt werden (beispielsweise durch Blitz oder Störungen in dem
Starkstromnetz des Elektrizitätswerks). Bei der Handhabung exponierter
Metallbestandteile des Netzwerkes Vorsicht walten lassen.
Dieses Gerät enthält innen keine durch den Benutzer zu wartenden Teile.
Wartungs-, Anpassungs-, Instandhaltungs- oder Reparaturarbeiten dürfen nur
von geschultem Bedienungspersonal durchgeführt werden.
Dieses Gerät hat keinen Netzschalter; es wird beim Anschließen des
Netzkabels eingeschaltet.
Safety-3
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Safety and Regulatory Statements
Considerazioni sulla sicurezza
Considerazioni sulla sicurezza
Simboli di sicurezza.
Simbolo di riferimento alla documentazione. Se il prodotto è
contrassegnato da questo simbolo, fare riferimento alla
documentazione sul prodotto per ulteriori informazioni su di esso.
WARNING
CAUTION
La dicitura WARNING denota un pericolo che può causare lesioni o
morte.
La dicitura CAUTION denota un pericolo che può danneggiare le
attrezzature.
Non procedere oltre un avviso di WARNING o di CAUTION prima di aver compreso le
condizioni di rischio e aver provveduto alle misure del caso.
Questo prodotto è omologato nella classe di sicurezza I ed ha un terminale
protettivo di collegamento a terra. Dev’essere installato un collegamento a
terra di sicurezza, non interrompibile che vada dalla fonte d’alimentazione
principale ai terminali d’entrata, al cavo d’alimentazione oppure al set cavo
d’alimentazione fornito con il prodotto. Ogniqualvolta vi sia probabilità di
danneggiamento della protezione, disinserite il cavo d’alimentazione fino a
quando il collegamento a terra non sia stato ripristinato.
Per la messa a terra dei cavi LAN:
■
se la vostra LAN copre un’area servita da più di un sistema di distribuzione
elettrica, accertatevi che i collegamenti a terra di sicurezza siano ben
collegati fra loro;
■
i cavi LAN possono occasionalmente andare soggetti a pericolose tensioni
transitorie (ad esempio, provocate da lampi o disturbi nella griglia
d’alimentazione della società elettrica); siate cauti nel toccare parti
esposte in metallo della rete.
Nessun componente di questo prodotto può essere riparato dall’utente.
Qualsiasi lavoro di riparazione, messa a punto, manutenzione o assistenza va
effettuato esclusivamente da personale specializzato.
Questo apparato non possiede un commutatore principale; si mette scotto
tensione all’inserirsi il cavo d’alimentazione.
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Safety and Regulatory Statements
Consideraciones sobre seguridad
Consideraciones sobre seguridad
Símbolos de seguridad.
Símbolo de referencia a la documentación. Si el producto va
marcado con este símbolo, consultar la documentación del
producto a fin de obtener mayor información sobre el producto.
WARNING
CAUTION
Una WARNING en la documentación señala un riesgo que podría
resultar en lesiones o la muerte.
Una CAUTION en la documentación señala un riesgo que podría
resultar en averías al equipo.
No proseguir después de un símbolo de WARNING o CAUTION hasta no haber entendido
las condiciones peligrosas y haber tomado las medidas apropiadas.
Este aparato se enmarca dentro de la clase I de seguridad y se encuentra
protegido por una borna de puesta a tierra. Es preciso que exista una puesta
a tierra continua desde la toma de alimentación eléctrica hasta las bornas de
los cables de entrada del aparato, el cable de alimentación o el juego de cable
de alimentación suministrado. Si existe la probabilidad de que la protección
a tierra haya sufrido desperfectos, desenchufar el cable de alimentación hasta
haberse subsanado el problema.
Puesta a tierra del cable de la red local (LAN):
■
Si la LAN abarca un área cuyo suministro eléctrico proviene de más de
una red de distribución de electricidad, cerciorarse de que las puestas a
tierra estén conectadas entre sí de modo seguro.
■
Es posible que los cables de la LAN se vean sometidos de vez en cuando
a voltajes momentáneos que entrañen peligro (rayos o alteraciones en la
red de energía eléctrica). Manejar con precaución los componentes de
metal de la LAN que estén al descubierto.
Este aparato no contiene pieza alguna susceptible de reparación por parte del
usuario. Todas las reparaciones, ajustes o servicio de mantenimiento debe
realizarlos solamente el técnico.
Este producto no tiene interruptor de potencia; se activa cuando se enchufa
el cable de alimentación.
Safety-5
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Safety and Regulatory Statements
Safety Information
Safety Information
Safety-6
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Safety and Regulatory Statements
Regulatory Statements
Regulatory Statements
FCC Statement (U.S.A.)
This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications.
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
VCCI Class 1 ( For J apan Only) .
Safety-7
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Safety and Regulatory Statements
Regulatory Statements
European Community
This equipment complies with CISPR22/EN55022 Class A.
No te
This is a class A product. In a domestic environment this product may cause
radio interference in which case the user may be required to take adequate
measures.
DOC Statement (Canada)
Complies with Canadian EMC Class A requirements.
Safety-8
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Safety and Regulatory Statements
Regulatory Statements
Declaration of Conformity
The following Declaration of Conformity for the HP AdvanceStack Switch
800T complies with ISO/IEC Guide 22 and EN 45014. The declaration identi-
fies the product and related accessories, the manufacturer’s name and address,
and the applicable specifications that are recognized in the European commu-
nity.
Safety-9
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Safety and Regulatory Statements
Regulatory Statements
Safety-10
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Index
automatic reboot … D-2
Numerics
100T, blue bar … 1-5
802.2 … 7-31
802.3 SAP … 3-22
B
backbone, high speed … 7-5
bandwidth
conserving … 7-30
reduce usage … 7-23
savings … 3-23, 7-24
usage, filters … 7-8
Baud rate … C-3
A
A.09.70 router release … 7-22
ABC … 3-23
configuration … 7-32, 7-37
encapsulation type … 7-31
example … 7-30
operation … 7-30
use … 7-30
baud rate … 2-2, 9-5
BBS … 9-8
blocked port … 7-2
blocking state … 3-21
Bootp … 2-1, 3-9, 5-1, E-1
configuring … E-3
table file … E-2
Unix systems … E-1
Bootptab file … E-2
brackets … 1-10
brackets, mounting … 1-10
bridge … 1-2, 1-21
broadcast … 7-32
ARP … 7-30
VLAN … 7-30, 7-32
access
manager
operator … 3-13
accessory kit … 1-8, 1-10
actions … 2-5, 2-6
Actions menu … 3-2
active path … 7-2
address
aging … 3-5
manager … 3-14
network manager … 5-3
resolution protocol … 7-30
table … 4-1
control … 7-30, 7-34
domain … iv, 3-11, 3-23, 7-14, 7-30
loop … 7-5
restricting … 3-6
storm … 7-2
table, port … 4-7
advanced commands … 6-1
AdvanceStack Assistant … 5-1, 8-2
air flow
ventilation … 1-8
ANSI terminal … 8-9
ARP … 7-30, 7-31
ARP filter … 3-22
ARP, proxy … 7-31
ASCII terminal … 1-22
asterisk … 2-6
traffic, IP/IPX … 3-23
traffic, port trunk … 7-5
buffers, message … 4-3
buffers, packet … 4-3
button … D-5
Config Clear … D-2, D-5
Reset … D-2, D-5
authentication trap … 3-15
auto-discovery … 5-3
automatic broadcast control
See ABC.
Index - 1
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console … 1-2, 1-21, 1-24, 9-5, 9-7
navigation … 2-5, 2-6
operation … 2-6
console configuration
connection … 2-3
C
cabinet, rack … 1-9
cable … 1-15
crossover … 9-4
network connections … A-2
problems … 9-6
RS-232 … 1-24’ A-2
serial port … A-7
space … 1-8
interface … 2-1
port … 2-1, 2-2, D-6
ProComm Plus V2.01 … C-2
remote … 1-23
RS-232 … 1-7, 2-1, 2-2, 3-16
session … 2-2
twisted-pair connector pin-outs … A-3
CD … 1-19
clearled … 6-6
ClearLED command … 3-15
command prompt … 2-4, 2-12, 6-2
exit … 6-3
terminal emulators … C-3
Windows 3.1 terminal … C-1
Console Configuration screen … 3-17
cooling … 1-8
copyright screen … 2-2
crash information … 2-2
crossover cable … 9-4
VLAN … 6-2
commands, advanced … 6-1
commands, system management … 6-1
communities, SNMP … 3-13
compact disk … 1-19
config … 6-6
Config Clear button … 2-9, D-2, D-5
configuration … 2-4, 7-2
access … 3-3
D
date format … 4-15
date parameter … 3-5
DEC LAT filter … 3-22
Declaration of Conformity … 13
default MAC address … F-2
DEFAULT_CONFIG … 6-2
DEFAULT_VLAN … 3-11, 7-17
delete config … 6-6
activating … 5-3
Bootp … E-2
console … 3-17
factory default … iv, 1-2, 1-21, 2-12, 3-1, 3-2,
3-11, 3-21, 6-2
features … 3-1
IPX … 3-7
IP … 3-9
network monitoring … 3-18
port … 3-6
port trunk … 7-6
reset … 2-12
screen … 3-3
serial link … 3-16
SNMP … 3-13
spanning tree … 3-21, 7-2
system … 3-5
traffic/security filter … 3-22, 7-10
transfer … 8-8
trap receivers … 3-15
VLAN … 3-11
DHCP … E-1
diagnosing with the LEDs … 9-2
diagnostic test … 1-7
diagnostic tests … 9-7
testing twisted-pair cabling … 9-8
direct-connect console … 2-3
domain … 3-11
domain, broadcast … iv, 3-23, 7-30
down time … 2-2
download configuration … 8-8
Download Manager … 8-2
download
IP … 8-2
IPX … 8-2
operating system … 2-4
OS … 4-17, 8-5
TFTP … 8-2, 8-3
configure SNMP … 5-3
connector specifications … B-2
duplicate MAC address …7-22, 9-7
Index - 2
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ground
electrical … 1-8
grounded power supply … 1-6
E
ECHO filter … 3-22
electrical outlet, grounded … 1-6
electrical specifications … B-1
electromagnetic specifications … B-2
enabled, port … 4-4
environmental specifications … B-1
Event Log … 2-2
H
hardware reset
reset … 2-12
Help … 2-5, 3-2, 6-4
Help, listing … 6-3
Help, stop listing … 6-3
history … 6-4
History command … 8-7
host-only … 7-21
event log … 2-4, 2-12, 3-15, 3-17, 4-15, 4-17
navigation … 4-16
severity code … 4-15
exit … 6-7
exit from command prompt … 6-3
HP J2962A … 1-2
HP proprietary MIB … 5-2
HP Router 440 … 7-22
HP Router 470 … 7-22
HP Router 480 … 7-22
HP Router 650 … 7-22
hub connection … 1-19
F
factory default configuration … 3-2
failure, OS download … 8-6
fan … 9-3
fault … D-1
fault LED … D-2
feet, rubber … 1-15
filter … 3-22, 7-8
I
configuration … 7-10
effect of IGMP … 7-26
port trunk … 7-6
protocol types … 3-22
types … 7-8
ID, port … 4-4
IEEE 802.1d … 3-21, 7-2, 7-3
IGMP
configuring … 7-26, 7-28
effect on filters … 7-26
example … 7-24, 7-25
high-priority forwarding … 7-26
IP multicast address range … 7-26
leave group … 7-23
multicast group … 7-23, 7-26
multicast traffic … 3-12
multimedia … 3-12
flooded traffic, port trunk … 7-5
format, date … 4-15
format, time … 4-15
forwarding state … 3-21
forwarding table.
See address table.
four-port 10Base-T module … D-3, D-4
FTP library service … 9-8
operation … 7-23
querier setting, changing … 7-29
query … 7-23
report … 7-23
G
gateway
VLAN, port moves … 7-27
in-band … 1-21
frame encapsulation type … 3-7
IP … 3-10
IP address … 3-9
IPX … 3-7
in-band access … 2-1
in-band security … 7-8
inbound Telnet … 3-17
installation problems … 9-5
Interconnect Manager
See AdvanceStack Assistant.
router … 3-10
get … 6-7, 8-8
getmib … 6-6, 7-29
Index - 3
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IP
LED … 1-7
diagnosing the switch status … 9-2
broadcast traffic … 3-23
configuration … 3-9
download … 8-2
Dx … 9-4
fan fault … D-1
gateway (IP) address … 3-9
gateway address … 3-9
host-only … 7-21
fault … 1-7, 9-3, 9-7, D-1, D-2
meanings described … D-2
pattern during self test … 9-2
port … D-1
mgmt. … 4-3
SNMP … 5-1
subnet mask … 3-9, 3-10
1-21, 3-17
port enabled … 9-4
port Rx … D-3
port Tx … D-3
IPX … 3-7
broadcast traffic … 3-23
power … 9-3, D-1
power fault … D-1
Power LED … D-2
power-on … D-1
configuration … 3-7
download … 8-2
encapsulation … 3-7
factory default configuration … 3-7
gateway … 3-7
Gateway Encap … 3-8
gateway encapsulation … 7-17
mgmt. … 4-3
power-on cycle … D-1
Reset cycle … D-1
RPS … 1-17, D-1, D-2
Rx … 9-4
security … 3-15, 9-4, D-1, D-2
self-test … 9-3, D-1, D-2
status … D-1
MIB … 5-1
network number … 3-7
node number … 3-7
ipxping … 6-5
Tx … 9-4
link speed, port trunk … 7-6
link status, port … 4-5
Link, serial … 3-16
linktest … 6-5
L
log … 6-8
LAN adapter cards
LOGOUT … 2-3, 2-9
LOGOUT command … 2-4
loop, broadcast … 7-5
loop, redundant … 3-2
to test end-to-end communications … 9-8
latency … 3-23, 7-30
learning bridge … 3-1
leave group
See IGMP.
M
MAC address … E-1, F-1
default … F-2
duplicate … 9-7
factory assigned
label … F-2
learned … 4-7
on port … 4-8
port … F-2
port counters screen … F-3
VLAN … 7-15, F-2, F-3
Main menu … 1-23, 2-4, 3-3, 4-1
Index - 4
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manager
access … 3-13
navigation, event log … 4-16
NETBIOS filter … 3-22
network
address … 3-14
address field … 5-3
password … 2-7 — 2-10
Manual, IP address … 3-10
MDI … 9-4
connection … 1-19
design guidelines … 1-19
device connection … 1-19
management … 1-2
MDI-X … 9-4
media type, port trunk … 7-6
media, port … 4-4
management functions … 5-3
manager address … 5-3
number, IPX … 3-7
memory … 4-3
message buffers … 4-3
mib … 7-29
VLAN monitoring parameter … 3-20
topology … 9-6
traffic overload … 3-20
Network Monitoring Port screen … 3-18
node address, IPX … 3-7
Novell Standard IPX MIB … 5-1
NSQ reply, proxy … 7-32
access, port ID … 4-4
HP proprietary … 5-1
IPX … 5-1
listing … 5-1
standard … 5-1
walkmib … 6-7
Microsoft Windows 3.1 … 1-22
mode, port … 4-4
O
operating temperature … 1-8
operator access … 3-13
operator mode … 2-8
operator password … 2-8, 2-9
password … 2-7
modem … 1-21, 1-24, 2-3, 2-4, D-6
modem access … 2-1
modem cable pin-out … A-8
Monitor parameter … 3-19
monitoring … 4-1
OS
download … 4-17
monitoring a VLAN … 3-20
monitoring traffic … 3-18
MORE … 6-3
download failure … 8-6
download, TFTP … 8-3
download, troubleshooting … 8-6
switch-to-switch download … 8-5
update utility … 8-2
mount
brackets … 1-10
precautions … 1-8
version … 4-3, 8-4
table … 1-15
outbound Telnet … 3-17
out-of-band access.
See console RS-232
out-of-band management
RS-232 port pin-out … A-6
multicast address range … 7-8
multicast address, spanning tree … 7-8
multicast filter … 7-8
multicast group
See IGMP.
multicast traffic, port trunk … 7-5
multimedia
P
See IGMP.
packet buffers … 4-3
packet traffic … 4-3
page … 6-8
multiple VLAN … 5-1
multiport bridge … 3-1
multiport transparent bridge, … 1-2
N
navigation … 2-5, 2-6
Index - 5
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password … 2-1, 2-2, 2-4
case-sensitive … 2-9
clear … 2-12
power supply … 1-17, D-2
power supply, grounded … 1-6
power-on cycle … D-1
precautions for mounting … 1-8
print … 6-8
delete … 2-9
incorrect … 2-8
length … 2-9
priority
lost … 2-9
See spanning tree.
setting … 2-8
path cost … 7-2
performance … 4-3
physical specifications … B-1
ping … 6-4
proprietary MIB … 5-2
protocol filter … 7-8
protocol filter types … 3-22
protocol filters … 7-9
proxy ARP … 7-31
pin-outs
proxy NSQ reply … 7-32
public SNMP community … 5-3
put … 6-7, 8-8
minimum cable … A-7
Port Address Table screen … 7-22
Port Counters screen … F-2, F-3
port
Q - R
querier … 7-29
address table … 4-7
blocked … 7-2
query …7-23
rack … 1-2, 1-8, 1-10
mount … 1-9
configuration screen … 7-6
cost
counters … 4-5
readme.txt … 8-2
reboot … 2-4, 2-6, 2-10, 2-12, 5-3, D-5
automatic … D-2
recommended cables … A-2
reconfigure … 2-6
redo … 6-8
redundant loops … 3-2
redundant path … 7-2
spanning tree … 3-21
redundant power supply … 1-2, 1-16, D-7
refresh interval, screen … 3-17
Regulatory statements … 11
remote console … 1-24
repeat … 6-8
counters, reset … 4-5
data … 4-4
MAC address … F-2
traffic patterns … 4-5
monitoring … 7-15
monitoring, port trunk … 7-6
name … 3-6
traffic patterns … 4-5
port trunk … 7-5
configuration … 3-6, 7-6
filters … 7-6
limit … 7-5
media type … 7-6
network management … 7-6
number allowed … 7-5
source MAC address … 7-5
VLAN … 7-6, 7-15
VLAN Assignment screen … 7-20
power … D-1
report
See IGMP.
reset … 2-10, 2-12, 4-17
Reset button … 4-17, D-1, D-2, D-5
Reset cycle … D-1
reset port counters … 4-5
restricted access … 3-13
restricted write access … 3-13
connector … D-7
cord … 1-6, 1-15, 1-16, 1-17, D-7
grounded … 1-8
LED … D-2
LED pattern during … 9-2
overload … 1-8
space … 1-8
Index - 6
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RFC
SNMP … 5-1
authentication failure … 9-4, D-2
1213 … 5-1
1493 … 5-1
1515 … 5-1
1573 … 5-1
1650 … 5-1
1757 … 5-1
communities … 3-13, 5-3
Communities screen … 3-13
configure … 5-3
IP address … 5-1
manager address … 3-14
MIB access, port ID … 4-4
public community … 3-1, 5-3
restricted access … 3-13
traps … 5-1
RIP … 7-30, 7-31
RMON … 5-1
ROM version … 4-3
router … 3-23, 7-22, 7-23, 7-30
gateway … 3-10
v1 agent … 5-1
router connection … 1-19
router release A.09.70 … 7-22
RPS … 1-2, 1-8, 1-15, 1-16, 9-3, D-7
install … 1-17, D-7
software, OS … 2-4
source MAC filter … 7-8
source MAC filters … 7-9
source port filter … 7-8
source port filters … 7-9
spanning tree … 3-2, 7-2
blocked port … 7-2
LED … 1-17, D-2
instead of power cord … 1-16, 1-17
RS-232 … 1-2, 1-21, 1-24, 2-1, 2-2, 9-5
cables for connecting …, 8-2, A-2
console … 3-16
blocking … 3-21
caution … 4-11
port … 1-7, D-6, F-2
default … 3-21
Rx
disabled by VLANs … 3-21
filter … 7-8
see LED.
forwarding state … 3-21
global information … 4-10
link priority … 3-21
multiple VLANs … 7-15
not in menu … 3-21
port cost … 3-21
S
Safety information … 5
SAP … 7-30, 7-31
security … 3-11, 7-14, D-1
filter … 3-22
priority … 3-21
in-band … 7-8
LED … 3-15, D-2
self-test … 1-7, 2-12, 9-2, D-1
failure … D-2
Spanning Tree Configuration screen … 3-21
specifications … B-1
connectors … B-2
electrical … B-1
self-test LED … D-2
serial cable.
electromagnetic … B-2
environmental … B-1
physical … B-1
See RS-232.
serial link … D-6
speed sense … 1-23, 2-2, 9-5, D-5
standard MIB … 5-1
statistics … 2-4, 4-1
clear counters … 2-10
update frequency … 3-17
status and counters menu … 4-2
status LED
Serial Link Configuration screen … 3-16
server, Bootp … 3-9
server, TFTP … 8-8
setmib … 6-6, 7-29
setting a password … 2-8
severity … 4-15
severity code, event log … 4-15
SNA filter … 3-22
See LED.
status, port … 4-4
SNAP … 7-31
Index - 7
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STP
Traffic/Security Filters screen … 3-22
transceiver, blue 100T bar … 1-5
Trap … 3-15
See spanning tree.
STP, duplicate MAC … 7-21
subnet … 7-23
subnet address … 3-11, 7-14
subnet mask … 1-21, 3-9, 3-10
IP … 3-9
subnetting, multiple … 3-23
Sun workstation … 7-21
switch 2000, "A" version … 7-5
switch connection … 1-19
system configuration screen … 3-5
system down … 2-2
authentication trap … 3-15
limit … 3-15
Trap Receivers Configuration screen … 3-15
authentication trap … 3-15
receiver … 5-3
SNMP … 3-15
Trap Receivers Configuration screen … 3-15
troubleshooting … 4-1
approaches … 9-1
cabling problems … 9-6
diagnosing with the LEDs … 9-2
diagnostic tests … 9-7
installation problems … 9-5
LED pattern during power-on … 9-2
OS download … 8-6
system name … 6-2
T
table mount … 1-15
Telnet … 1-2, 1-7, 1-21, 2-1, 2-2, 2-3, 2-4
disable or enable … 3-17
telnet … 6-5
testing the twisted-pair cables … 9-8
topology faults … 9-6
unusual network activity … 9-7
trunk
See port trunk.
twisted-pair cable
Telnet, inbound … 3-17
Telnet, outbound … 3-17
temperature, operating … 1-8
terminal emulator … 1-2, 1-7
terminal, ANSI … 8-9
terminal, VT100 … 8-9
testing twisted-pair cabling … 9-8
TFTP
pin assignments … A-5
pin-outs … A-3
switch-to-computer connection … A-3, A-4
testing … 9-8
Tx
server … 8-8
See LED.
TFTP download … 8-2, 8-3
TFTP OS download … 8-3
threshold setting … 5-3
command … 6-2
type, port … 4-4
U
format … 4-15
parameter … 3-5
unauthorized access … 3-15
Unix, Bootp … E-1
server … 3-9
unrestricted write access … 3-13
unusual network activity … 9-7
update utility, OS … 8-2
Time Protocol Enabled … 3-5
Time Protocol parameter … 3-9
time server … 3-9
upload configuration … 8-8
timep … 3-9
Timep Poll Interval … 3-9
Timep Server … 3-9
V
ventilation … 1-8, 1-15, 9-3
version, OS … 6-8, 8-4
version, OS and ROM … 4-3
Vines IP filter … 3-22
topology faults … 9-6
traffic filter violation … 9-4, D-2
traffic monitoring … 5-3
traffic, monitoring … 3-18
traffic, port … 4-5
Index - 8
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virtual LAN
See VLAN.
VLAN … 3-9, 3-11, 3-19, 3-20, 6-6, 7-14, 7-15, 7-22, 9-7
ABC … 7-30, 7-32, 7-34
address … 5-1
Bootp … E-1, E-2
command prompt … 6-2
configuration … 7-20
configuring … 7-19
configuring Bootp … E-2
DEFAULT_VLAN … 3-11
deleting … 7-21
event log entries … 4-15
IPX network number … 3-7
limit … 3-11
MAC address … F-2, F-3
management … 3-11
multiple … 5-1, 6-2
network monitoring … 3-18
network monitoring port, effect … 7-21
OS download … 8-2, 8-3
port monitoring … 7-15
port trunk … 7-6, 7-15
restrictions … 7-21
source port filters … 7-9
spanning tree disabled … 3-11
spanning tree enabled … 3-21
spanning tree usage … 7-15
switch capacity … 3-11
VT100 terminal … 8-9
W - Z
walkmib … 6-7
warranty … ii
web … 9-8
web site, HP … 5-2
weight … 1-9
world wide web … 9-8
world wide web site … 5-2
write access … 3-13
XNS … 7-21
ZGet … 6-7, 8-8
ZModem … 8-8
ZPut … 6-8, 8-8
Index - 9
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Technical information in this
document is subject to change
without notice.
© Copyright 1997
Hewlett-Packard Company
Printed in Singapore 3/97
Manual Part Number
J3245-90001
*J3245-90001*
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