|
TM
ProXpress
Multifunction Switch/Router
Model TE100-S55
for connecting 10Base-T, 100Base-TX,
100Base-FX and ISDN links
User’s Guide
First Edition - June 1, 1996
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Service and support
TRENDware is committed to providing customers with high
quality and timely technical support worldwide.
Unlimited technical support is available to you free of charge.
TRENDware support engineers are available to respond to your
calls Monday through Friday, 8:30 a.m. to 5:30 p.m. Pacific
Standard Time.
TEL
FAX
USA
1-310-328-7795
1-310-328-7798
Bulletin Board System:
310-328-8191
(protocol: 14400, 8, N,1)
World Wide Web Site:
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About this manual
This manual is the user’s reference guide for the TE100-S55 that
interconnects Fast Ethernet, 10Base-T and ISDN links into a
single system. It provides detailed information on the features,
functions and installation of the TE100-S55.
Chapter 1 provides an overview of Fast Ethernet and Switching
technology, their uses and benefits in the currently emerging
computing environment, and an overview of the TE100-S55.
Chapter2 describes the cabling rules and guidelines for
integrating the TE100-S55 into a network.
Chapter 3 describes how to configure the TE100-S55 through
the Out-of-band management.
Chapter 4 describes how to configure the TE100-S55 through
the XPressView SNMP Management program.
Chapter 5 teaches how to identify the status LEDs of the
TE100-S55 and how to isolate and solve problems.
TE100-S55
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Table of Contents
Chapter 1
INTRODUCTION
Fast Ethernet Technology
Switching Technology
7
8
10/100 Switching Technology
Benefits of Switching
9
9
Introducing the TE100-S55
10
Features of the TE100-S55
12
Chapter 2
GETTING STARTED
Cabling Rules and Site Preparation
Unpacking
13
16
17
18
18
19
19
20
20
The Front Panel
Mounting
Attaching Cables
Adding Optional Modules
Power ON
Software Setup
Checking Status LEDs
Chapter 3
CONFIGURING THE SWITCH
Introduction
21
22
27
Out-of-Band Management
Spanning Tree Algorithm
Chapter 4
SNMP MANAGEMENT
5
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Installing XPressView
Starting XPressView
Operating XPressView
36
37
38
Chapter 5
DIAGNOSTICS
Power-On Self Test
System Status LEDs
System Diagnostic LEDs
System Utilization LEDs
Port Status LEDs
41
42
43
43
44
APPENDICES
A ~ Switch Default Setting
B ~ RS-232 Pin Specification
C ~ RJ-45 Pin Specification
D ~ 10Base-T Module
45
46
47
49
50
52
54
E ~ 100Base-FX/TX Module
F ~ ISDN Module
G ~ Hardware Specification
INDEX
56
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Chapter 1 Introduction
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity
of desktop computing applications are fueling the needs for high
performance networks. A number of high-speed LAN
technologies are available to provide greater bandwidth and
improve client/server response times. Among them, Fast
Ethernet, also known as 100Base-T, provides the smoothest
migration path for the current 10Base-T technology. The non-
disruptive and smooth evolutionary nature of Fast Ethernet, plus
its prevailing market acceptance, guarantees it as the most cost
effective and high-performance networking solution of the future.
100Base-T networks essentially look and act like 10Base-T
networks, only faster (see Table 1-1, page 8). 100Base-T
provides 10 times the performance of 10Base-T while retaining
most of the same cabling rules and the CSMA/CD media-access
method. 100Base-T also uses the same packet format, packet
length, error control and management information as 10Base-T.
As such, 100Base-T is recognized as the true and rightful heir of
10Base-T.
For flexibility, the 100Base-T specification contains three
different cabling schemes, 100Base-TX (Cat 5 UTP), 100Base-T4
(Cat 3,4 or 5 UTP) and 100Base-FX (fiber optic). 100Base-TX is
probably the most popular choice since it enables users to retain
their existing 10Base-T cabling infrastructure and easily migrate
to Fast Ethernet.
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Ethernet
10Mbps
Fast Ethernet
100Mbps
2x or less
CSMA/CD
Star
Speed
x
Cost
CSMA/CD
Star or Bus
UTP, Coax, Fiber
IEEE 802.3 Standard
Topology
UTP, Fiber
Cable Supported
Cable Specification
10Base-T:Cat 3,4,5 UTP 100Base-T4: Cat 3,4,5 UTP
10Base-2: Thin coax
10Base-F: Fiber optic
100Base-TX: Cat 5 UTP
100Base-FX: Fiber optic
100 meters
100 meters
Maximum distance of
UTP link
500 meters
210 meters
Collision domain
diameter (maximum
distance w/UTP)
Unlimited
Unlimited
Maximum network
diameter (using
switches/routers)
Yes (AUI)
Yes
Yes (MII)
Yes
Media Independent
Interface
Full duplex Signaling
Table Chapter 1 -1, Ethernet vs. Fast Ethernet
Switching Technology
Another approach to pushing beyond the limits of Ethernet is the
development of Switching technology. A switch works in the
MAC address level, bridging multiple Ethernet segments to
prevent unnecessary network traffic from passing one another. In
a properly subdivided switched LAN, the net result is a full and
transparent bandwidth for each segment.
Switched Ethernet vs. Legacy Ethernet is analogous to using
private telephone lines vs. party lines. By connecting to a
switched port, each Ethernet segment has dynamic full
8
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performance or “wire-speed.” Therefore, a switch effectively
splits a physical shared-access LAN into bridged multiple LAN
segments. Each segment supports a workgroup and even
provides a dedicated connection to a desktop server. The
outcome is a multiplication of the overall available bandwidth and
a more predictable performance under heavy network loads.
10/100 Switching Technology
Just as 100Base-T is an extension of the existing 10Base-T
technology, 10/100 Switching is merely an extension of
10Base-T Switching. The 10/100 Switch provides not only the
10/100Mbps high-speed transmission rate per segment, but it also
bridges 10Base-T and 100Base-T into a harmonious network.
Combining Fast Ethernet and Switching technologies, the 10/100
Switch provides enough bandwidth to satisfy the most demanding
workgroups, as well as a high-speed backbone link.
Benefits of Switching
From the technical point of view, Ethernet switching technology
dramatically boosts the total bandwidth of a network. It also puts
configuration flexibility and bandwidth adaptability into the local
workgroups where the majority of work is generated from a
business operation. Switching further eliminates the congestion
problem inherent to the contention oriented Ethernet CSMA/CD
protocol, thereby improving predictable response times under
heavy network loads. In the past, this congestion under heavy
loads was alleviated using an expensive routing technology.
From the applications point of view, the new wave of object
oriented distributed Client/Server applications demands higher
bandwidth and tighter integration of client workstations with
servers. The legacy shared-access 10Mbps Ethernet technology
9
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can no longer provide both bandwidth and predictable response
times to this new generation of workgroup computing.
From an economical point of view, Fast Ethernet switching not
only satisfies both technical and business requirements, but also
preserves the users’ existing investment in the huge 10Base-T
Ethernet installed base. This compatibility insures a path for
users to add, change, and migrate to Fast Ethernet capabilities as
needs arise. It also provides a low cost and flexible bandwidth
solution directly to local workgroups, where the majority of work
is generated and reducing the need of expensive routers that
usually cater to the network backbone.
Introducing the TE100-S55
The word “flexible” best describes the characteristics of the
TE100-S55 . Not only does it provide five fixed 10/100Mb ports,
but it also provides an open slot for adding an 8-port 10Base-T
module, a 100Base-FX/TX port or an ISDN router module.
Users can hand-select the necessary modules to fit their individual
needs.
With expandable switch functionality and ISDN router support,
the TE100-S55 brings to the workgroup capabilities normally
found in more expensive, chassis-based products. Dual-speed
10/100 configuration options also make the product ideal for
integrating Fast Ethernet technology into existing 10Mbps
network.
Both fixed and modular network ports on the TE100-S55 feature
NWAY Auto-negotiation, to simplify installation and use.
NWAY Auto-negotiation senses the network speed when cabling
is inserted into the port, and automatically transmits at either
100Mbps or 10Mbps. In addition, it detects whether the device
transmitting to the port is utilizing half or full-duplex signaling
and configures itself without user intervention. When taking
advantage of full duplex signaling, the TE100-S55 literally
10
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doubles network throughput to 200Mbps on Fast Ethernet
segments and 20Mbps on 10Base-T segments.
Although the TE100-S55 is equipped with five ports for 10Base-
T or 100Base-TX connections, it also provides an open slot for
add-on modules. These modules include an 8-port 10Base-T, a
100Base-FX/TX port or an ISDN router.
Module Type
10Base-T
Description
Common Usage
Eight RJ-45 ports for Cat Existing 10Base-T
3, 4 or 5 UTP cable.
users who want to
expand or segment
their 10Base-T
connections.
Refer to Appendix D,
page 49 for more detail.
One MIC port for fiber
optic cable plus one
Fast Ethernet users
who want to connect
100Base-FX/TX
RJ-45 port for Cat 5 UTP to fiber optic
cable.
backbone or expand
their 100Base-TX
connection.
Although two ports are
provided, only one port
may be used at a time.
Refer to Appendix E,
page 50 for more detail.
One RJ-11 port for ISDN Ethernet or Fast
ISDN Router
phone line (two-64Kbps
channels).
Ethernet users who
want to access remote
locations or
(up to 128Kbps)
Refer to Appendix F,
page 52 for more detail.
internet/intranet.
Table Chapter 1 -2, Description of Add-on
Modules
11
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Features of TE100-S55
Utilizing the latest Fast Ethernet and Switching technologies, the
TRENDnet TE100-S55 is designed to provide:
•
•
Five 10/100Mbps dual-speed Ethernet ports
One expansion slot with multiple configuration options:
8 switched ports for 10Base-T OR
2 switched port for 100Base-FX/TX OR
1 ISDN router (up to 128Kbps)
•
NWAY Auto-negotiation for each network port providing
auto-detection of connected cable type, auto-sensing of full
or half duplex signaling and auto-configuration.
•
•
•
Full or half-duplexing.
Store-and-forward packet switching.
The IEEE 802.1d Spanning Tree Algorithm for network loop
detection and prevention and topology re-configuration.
•
•
Native SNMP management support with Ethernet
MIB II (RFC 1284) and bridge MIB (RFC 1286).
Dynamic, automatic self-learning network configuration that
is refreshed every three minutes for maximum performance.
•
•
•
•
•
•
VLAN support.
4,096 maximum entries for MAC Address Table.
One RS-232 port for local/remote Out-of-Band management.
The EEPROM (flash memory) for firmware upgrade.
Comprehensive LED display of the system/port status.
Self-test during power on to ensure system integrity.
12
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Chapter 2 Getting Started
Cabling Rules and Site Preparation
Although 100Base-T and 10Base-T are alike in many aspects,
there are slight differences in the cabling rules. So, spend some
time in locating and reconfiguring your cabling structure for the
best network layout.
The key cabling rules for 100Base-TX are:
•
The 100Base-TX specification requires two-pair Category 5
UTP or two-pair Type 1 STP cable.
•
The maximum cable length from an end-station to a hub or
repeater is 100 meters.
•
•
The maximum number of repeater1 hops allowed is two.
The maximum network diameter is 210 meters: two
segments of 100 meters with two repeaters/hubs no farther
apart than 10 meters are allowed.
•
Switches are not considered as a repeater. Therefore, there
are no limitation to repeater hops or to the network diameter
distance. However, the maximum cable length from an end-
station to a switch still remains at 100 meters.
1
A single or a stacked 100Mbps hub is counted as one repeater. A
switch is not counted as a repeater, but is treated as an end-station
when applying the topology rules.
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The TE100-S55 fits into the 100Base-T cabling architecture as a
switch. Therefore, unlimited number of switches may be installed
in the same network with maximum distances of 100 meters apart.
The 10/100Mb ports of TE100-S55 require two-pair Cat5 UTP
(or Type 1 STP) for 100Base-TX connections. For 10Base-T
connections, two-pair Cat 3, 4 or 5 UTP cables are required.
Figure Chapter 2 -1, Example of TE100-S55 wiring
environment
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Careful planning and site preparation are the keys to success for
installing Fast Ethernet switches. Users should perform a
network bandwidth analysis based on their workgroup network
traffic needs and examine their workstation equipment for other
performance bottlenecks.
Figure Chapter 2 -2, 100Base-T cabling rules
15
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Unpacking and Setup
Now that you have a good understanding of the basic cabling
rules, as well as your own network environment, you’re ready to
integrate the TE100-S55 into the network.
The following sections describe how to install, connect and setup
your new TE100-S55 .
UNPACKING
The TE100-S55 shipping carton should contain the following
items:
•
•
•
•
•
1 TE100-S55 unit
1 AC power cord
2 Mounting brackets
1 RS-232 serial cable (6 ft)
This User’s Guide
If any item is found missing or damaged, please contact your
local TRENDware reseller for replacement.
Figure Chapter 2 -3, Contents of the TE100-S55 Package
16
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THE FRONT PANEL
The TE100-S55 features following items on its front panel:
(A) Five RJ-45 ports for 10Base-T or 100Base-TX links
(B) An expansion slot with multiple configuration options:
(b1) 8-port 10Base-T Switch
OR
(b2) 2-port 100Base-FX/TX Switch OR
(b3) 1-port ISDN router
(C) One RS-232, DB9 Out-of-Band management port
(D) Eight system status LEDs
(E) Eight system diagnostic LEDs
(F) Eight system utilization LEDs
(G) Six status LEDs for each port
(H) Power Status LED
Figure Chapter 2 -4, Front panel of the TE100-S55
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MOUNTING
The TE100-S55 can be placed either on a table or rack mounted.
For rack mounting: First screw the pair of mounting brackets
(included in the packing carton) onto the switch. Then, mount the
TE100-S55 onto the rack, as shown below in Figure 2-5.
Figure Chapter 2 -5, Rack mounting a TE100-S55
ATTACHING CABLES
There are five RJ-45 ports on the TE100-S55 for connecting five
workstations or LAN segments. Each port supports either
10Base-T or 100Base-TX networks, auto-detecting the type of
connection. For 100Base-TX connection, two-pair Category 5
UTP (or Type 1 STP) cabling is required. For the 10Base-T
connection, two-pair Category 3, 4 or 5 UTP is required.
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If you are connecting workstations to the TE100-S55, use a
standard UTP cable with a straight RJ-45 pin layout. If you are
connecting hubs, bridges or other switches to the TE100-S55, the
Transmit (TD) and the Receive (RD) wires must be crossed-over
at one end of the connector. Please refer to Appendix C, page 47
for the details of pin layout.
ADDING OPTIONAL MODULES
Although the TE100-S55 is equipped with five ports for 10Base-
T or 100Base-TX connections, it also provides an open slot for
add-on modules. These modules include an 8-port 10Base-T, a
100Base-FX/TX port or an ISDN router.
To install add-on modules, simply unscrew and remove the slot
cover from the front panel of the TE100-S55. Slide-in and screw
the add-on module into the open slot of the TE100-S55.
Afterwards, attach the appropriate LAN or WAN connections to
each module.
Please refer to Appendix D~F (page 49-53) for more details on
each add-on module and its installation process.
POWER ON
The TE100-S55 can be used with AC power sources, 90 - 250
VAC, 50 - 60 Hz. The internal power supply will adjust to the
local power source automatically.
You may turn ON the power of the TE100-S55 with or without
attaching LAN connections to the switch. You should observe
the LEDs as the Switch is going through the Power-On Self Test
(POST) sequence. All system Status LEDs should go off, and the
Power LED should go on, when the POST is successful. The
corresponding Link LED will be turned on when a LAN segment
is connected to the port and functioning normally.
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SOFTWARE SETUP
The default settings of TE100-S55 (shown in Appendix A, page
45) should be sufficient in the majority of installations. If a
different setting is required for your specific environment, please
refer to Chapter 3, page 21 for “Out-of-Band Management” or
Chapter 4, page 35 for “SNMP Management”.
For simple management, you can perform the Out-of-Band
Management and access the TE100-S55 through its RS-232 port.
For elaborate SNMP management, you can run the XPressView
program from any network station.
CHECKING STATUS LEDS
When the power is first turned on, TE100-S55 performs a Power-
On Self Test (POST). Please observe the status LEDs for
verification of proper installation (for more detail, refer to
Chapter 5, page 41). These status LEDs also provide information
about the system unit and its connected Ethernet or Fast Ethernet
LAN segments, during normal operation.
Figure Chapter 2 -6, TE100-S55 status LEDs
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Chapter 3 Configuring the
Switch
Introduction
The TE100-S55 is designed to operate with or without the aid of
extensive network management software. For simple
management, you can run a terminal emulation program and
access the TE100-S55 through its RS-232 port. For elaborate
SNMP management, you can run the XPressView program from
any network station. Chapter 4 describes the details of how to
install and utilize the XPressView SNMP Management program.
Out-of-Band Management is the vehicle to access TE100-S55
locally or remotely via its RS-232 serial port. Through this port,
you can set up, monitor or modify the TE100-S55 configuration.
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Out-of-Band Management
ATTACHING TO THE RS-232 PORT
The TE100-S55 can be configured using the Out-of-Band
Management function. To begin, you must first connect a PC (or
a terminal) directly to TE100-S55 using the supplied RS-232
serial cable.
The RS-232 port is a DCE with a 9-pin female connector.
Figure Chapter 3 -1 shows the cable connection to a DTE such
as a PC running VT100 terminal emulation software or an actual
VT100 terminal. The switch-to-terminal (DCE/DTE) serial
communication speed is preset at 19,200 baud.
Refer to Appendix B for detailed pin specifications of the RS-232
port.
Figure Chapter 3 -1, RS-232 connection to a local
terminal
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VT100 TERMINAL
Once you’ve connected a PC (or terminal) to the RS-232 port of
the TE100-S55, you can begin the VT100 terminal emulation
process. The VT100 terminal emulation software can be found in
Microsoft Windows or any other communication software.
Table 3-1 describe the necessary settings for your PC or terminal
connection to TE100-S55.
Terminal Step
VT100 Compatible
terminal
PCVT100 terminal
emulation
Run the VT100 Terminal
emulation software / This
software can be found in MS
Windows (Accessory section )or
other communication software
Communication
software
Turn on the machine
and login as VT100
terminal
19,200 Baud, 8 N 1
(hardware setting)
19,200 Baud, 8 N 1
(through the Terminal software)
DCE/DTE line
setting
Refer to PC COM port hardware
and Software setup guidelines
PC COM port
hardware
setting
N/A
If your keyboard does not
Assigning
N/A
respond properly within the MS
Terminal Emulation program, go
to the Terminal Preference menu
and Deselect the “Use function,
arrow, Ctrl keys for Windows”
option; or refer to specific
control keys to
a non-VT100
system software
environment
terminal emulation software
Table Chapter 3 -1, VT100 Terminal Emulation Settings
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Upon a successful execution of terminal emulation, your
computer will establish communication with the TE100-S55 and
allow you to view or modify the following settings.
Control Settings
System display
User selection
Switch Version No.
Switch IP Address
Switch Subnet Mask
Default Gateway
V1.10 (Fixed)
Switch
Configuration
168.8.xx.xx
255.255.0.0
0.0.0.0
Switch MAC Addr.
Factory preset (Fixed)
Save change
Exit
F2 key
F4 key
Port/x State
Port Configuration
Enable (or Disable)
Port/x Physical
Auto (or 100/Half, 100/Full,
10/Half, 10/Full)
Port/x State
Block, Learning, Listening,
Forwarding, Disable (Fixed)
Port/x Priority
0 (Hi) - 255 (Low)
Enable / Disable
Bridge (switch) Priority
Root Cost
Spanning Tree
Configuration
Enable (or Disable)
32768
(Reflected STA result)
10 sec. (range: 1 - 10 sec.)
30 sec. (range: 4 - 30 sec.)
40 sec. (range: 6 - 40 sec.)
(MAC addr. of Root Bridge)
(Reflected STA result)
Hello Time
Forward Delay Time
Max Age Time
Root Bridge
Root Port
Y / N
Exit
Space Key (toggle)
F4 key
Down-load new
system firmware
Y / N
Exit
Space Key (toggle)
F4 key
Load factory default
parameters
Port Number
Port State
1 ~ 5
Filtering Data Base
Disable (or Forwarding,
Blocking)
MAC address
Up to 16 MAC addresses
Table Chapter 3 -2, TE100-S55 Settings for Out-of-Band management
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USER-SELECTIVE PARAMETERS
The TE100-S55 is factory set with a unique Ethernet MAC
address. Except for the MAC address, Version Number and Port
State, all parameters in Table 3-2 can be modified.
From the Switch Configuration menu, you can change the IP
Address of TE100-S55 to match the TCP/IP environment of your
network. The Gateway Address may also be changed to match
the Gateway of your network.
From the Port Configuration menu, you can Enable/Disable each
port connection , and prioritize them (ranges from 0 to 255). The
priority level, in conjunction with the preset port ID, is used under
the Spanning Tree Algorithm to determine the “Root Port”. The
Port State parameter corresponds to the Enable/Disable port
settings and the dynamic changes in routing paths of the
surrounding network. The Port State may show message
Blocking, Learning, Listening, Forwarding or Disable, at any
given time.
The Port Physical setting defaults to AUTO, but you can change
it to 100Mb half duplex, 100Mb full duplex, 10Mb half duplex, or
10Mb full duplex mode. Although optional, the AUTO setting is
recommended since it employs the NWAY Auto-negotiation
feature of the TE100-S55, automatically detecting and selecting
the optimum cable speed (10 or 100Mb) and signaling type (full
or half duplex) for each port. When taking advantage of full
duplex signaling, the TE100-S55 literally doubles network
throughput to 200Mbps on Fast Ethernet segments and 20Mbps
on 10Base-T segments.
From the Spanning Tree Configuration menu, you can
Enable/Disable the STA function, change the switch priority and
various timers. The STA functions and parameters are discussed
in full detail on page 27.
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From the Down-load New System Firmware menu, you can
upgrade the TE100-S55 with the latest firmware (if revision is
available). The XMODEM function will guide you in
downloading the firmware code into the TE100-S55. To acquire
the revised firmware file, please contact TRENDware technical
support.
From the Load Factory Default Parameters menu, you can
replace all parameter modifications for TE100-S55 with the
original default settings.
From the Filtering Data Base menu, you can Disable, Forward or
Block up to 16 MAC addresses for each port on the TE100-S55.
This feature allows you to create a virtual LAN, filtering each
segment for added performance.
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Spanning Tree Algorithm
In a more complex network environment, devices may physically
be connected in a loop, causing network failure due to the infinite
transfer of packets. In anticipation of such perplexity, the
TE100-S55 is designed to support the Spanning Tree Algorithm
(STA). Using STA, the TE100-S55 will prevent network loops
by logically designating a single path for each connection, as
well as establishing a backup path in case of a path failure.
Specifically, Spanning Tree Algorithm (STA) provides the
following services:
•
Network loop detection and prevention - Only one path is
allowed between any two switch/bridge segments. If there
are multiple paths, forwarded packets may loop indefinitely
and result in serious network failure. When STA detects a
loop, it activates the path with the lowest “path cost”, while
blocking the other paths.
•
Automatic topology re-configuration - If an active path
fails, the backup path will be automatically activated, and the
STA will auto-configure the network topology.
In a simple network where there is no possibility of network
looping, you may disable the STA function. However, if the
possibility of network loops exist, just leave the STA enabled
along with other switches/bridges in the network. The TE100-
S55 will interact with other switches/bridges to dynamically
establish forwarding paths within the network.
Subsequently, the TE100-S55 may be referred to as a bridge.
Since a switch is analogous to a bridge, the STA rules of a bridge
applies equally to the TE100-S55.
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You can view or modify the STA parameters through the Out-of-
Band Management, as shown in Table 3-3. Pay special attention
to the effects of each STA parameter in order to avoid erroneous
behavior in the network.
STA parameters
Enable/Disable
Settings
Effects
Comment
Enable /
Disable
Participate in or Enable in a SNMP
remove from
STA
network
lower the #, Increases chance Avoid, if the switch
Bridge Priority
higher the
priority
of becoming the is used in
Root Bridge workgroup level of
a large network
1 - 10 sec.
6 - 40 sec.
No effect, if not Never set greater
Hello Time
Root Bridge
than Max. Age
Time
Compete for
Root Bridge, if
BPDU is not
received
Avoid low number
for unnecessary
reset of Root Bridge
Max. Age Time
Max. Age ≤ 2 x
(Forward Delay -
1)
4 - 30 sec.
High # delays
the change in
state
Forward Delay
Max. Age ≥ 2 x
(HelloTime + 1)
Port Level STA parameters
Enable /
Disable
Enable or
disable this
LAN segment
Disable a port for
security or problem
isolation
Enable / Disable
lower the #, Increases chance
Port Priority
higher the
priority
of become Root
Port
Table Chapter 3 -3, User-selective STA parameters
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STA operates at two levels, the Switch and the Port level. In
addition, STA uses several timers to periodically ensure the
integrity of switches/bridges and their ports in a network.
The following paragraphs introduce the key information and
terminology needed to understand the STA parameters. Please
note that the word “bridge” now refers to TE100-S55.
AT THE BRIDGE LEVEL
Root Bridge: A network must first establish a starting point
from which all data forwarding path values are calculated,
compared, and determined. The Root Bridge is the unit with the
lowest Bridge Identifier1 (Bridge Priority + MAC address).
Bridge Priority: This is a user changeable parameter. This
parameter enables all bridges in the network to establish a Root
Bridge. A change to the Bridge Priority may cause the network to
re-establish a new Root Bridge. A high Bridge Priority increases
the chance for a bridge to be selected as the Root Bridge (the
smaller the number, the higher the priority).
Root Path Cost: From each bridge, Root Path Cost is the total
Path Cost of reaching the Root Bridge from a Designated Bridge.
A Root Bridge has Root Path Cost of 0.
Designated Bridge: From each LAN segment, the bridge that
has the lowest Root Path Cost to the Root Bridge becomes the
Designated Bridge. It forwards data packets for that LAN
segment. In case all bridges on a segment have the same Root
Path Cost, the bridge with the lowest Bridge Identifier becomes
the Designated Bridge.
1 The bridge MAC address is only used to decide the Root Bridge when
there are 2 or more bridges with the same Bridge Priority.
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AT THE PORT LEVEL
Designated Port: This is the port on each Designated Bridge that
forwards data packets for the attached LAN segment.
Root Port: Each bridge has a Root Port that has the lowest Path
Cost to the Root Bridge. In case there are several ports with the
same Path Cost, the one with the lowest Port Identifier (Port
Priority + pre-assigned Port ID) becomes the Root Port1.
Port Priority: This is a user changeable parameter for each port
on the bridge. In conjunction with a pre-set port ID, this
parameter determines the Root Port of a Bridge.
Path Cost: This parameter is fixed2 and will not be shown. The
100Mb segments will have auto-assigned Path Cost of 10, while
the 10Mb segments will have auto-assigned Path Cost of 100.
1
In a bridge, a port is Blocked, if it is not a Root or a Designated Port.
2
This is a changeable parameter, based on the STA specification.
However, it is fixed by the TE100-S55 implementation.
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TIMERS
Max. Age Time: This is a user changeable parameter. Should a
Bridge fail to receive an identifier packet from its Root Bridge
within this time limit, it assumes that the Root Bridge has failed.
Therefore, a new Root Bridge will be established for the network.
Hello Time: This is a user changeable parameter. Should a
Bridge be assigned as a Root Bridge, the Hello Time setting will
be used as the interval to send out identifier packets to notify
other Bridges of its existence. The Hello Time must be less than
the Max. Age Time, or else a configuration error will occur.
Forward Delay: This is a user changeable parameter. This is the
delay time that each port on a Bridge waits in the Listening state
before changing its Blocking state to the Forwarding state.
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ILLUSTRATION OF STA
A simple illustration of three Bridges (or TE100-S55) connected
in a loop is depicted in Figure 3-2. In this example, you can
anticipate some major network problems if the STA assistance is
not applied. For instance, if Bridge 1 broadcasts a packet to
Bridge 2, Bridge 2 will broadcast it to Bridge 3, and Bridge 3
will broadcast it to Bridge 1...and so on. The broadcast packet
will be passed indefinitely in a loop, causing a serious network
failure.
To alleviate network loop problems, STA can be applied as
shown in Figure Chapter 3 -3. In this example, STA breaks the
loop by blocking the connection between Bridge 1 and 2. The
decision to block a particular connection is based on the STA
calculation of the most current Bridge and Port settings. Now, if
Bridge 1 broadcasts a packet to Bridge 3, then Bridge 3 will
broadcast it to Bridge 2 and the broadcast will end there.
STA setup can be somewhat complex. Therefore, you are advised
to keep the default factory settings and STA will automatically
assign root bridges/ports and block loop connections. However,
if you need to customize the STA parameters, refer to Table 3-3
on page 28.
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LAN 1
Path Cost = 100
Port 1
Bridge ID = 21
Bridge 1
Port 2
Path Cost = 100
Port 1
Path Cost = 100
Bridge 3
Bridge ID = 15
LAN 2
Port 2
Path Cost = 100
Port 1
Path Cost = 100
Bridge 2
Bridge ID = 30
Port 2
Path Cost = 100
LAN 3
LAN 1
Figure Chapter 3 -2, Before Applying the
STA Rules
Root Port
Port 1
Root Path Cost = 100
Bridge ID = 21
Bridge 1
Port 2
Designated Port
Designated Port
Port 1
Root Path Cost=0
Bridge ID = 15
Bridge 3
Port 2
LAN 2
Block Path
Port 1
Designated Port
Bridge 2
Root Path Cost = 100
Bridge ID = 30
Port 2
Root Port
LAN 3
Figure Chapter 3 -3, After Applying the STA Rules
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Chapter 4 SNMP Management
For basic setup of the TE100-S55, use the out-of-band
management functions as described in Chapter 3. However, for a
user-friendly graphic interface to your TE100-S55 setup, you can
use the XPressView SNMP Management program.
The XPressView program permits you to view or modify the
TE100-S55 configuration and its network activities. Specifically,
it allows you to do the following management functions:
•
•
•
•
Enable/Disable each Port State.
View the Switch Configuration.
Modify the parameters for Spanning Tree Algorithm.
Monitor the incoming and outgoing network traffic.
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Installing XPressView
Installing the XPressView SNMP Management program is easy to
do and only takes a few minutes. The supplied SETUP program
guides you through the process.
WHAT YOU NEED
To use XPressView, your computer must have the following:
386, 486 or Pentium
2 megabytes minimum
10 megabytes minimum
3.1, 3.11 or Win95
Processor:
RAM:
Disk Space:
Windows:
TCP/IP
Winsock interface
(It is recommended to set the IP address
at 168.8.xx.xx, similar to the TE100-
S55 IP address)
1.44 Floppy
VGA
Drive:
Display:
TO INSTALL XPRESSVIEW
•
•
Run Windows and close all programs that are active.
Insert the supplied XPressView diskette into your floppy
drive.
•
From Windows Program Manager or Explorer, click the
floppy drive that contains XPressView, and click the SETUP
command. The setup screen will appear. Accept or modify
the Destination Directory and click NEXT.
The XPressView program icon will automatically be added to
your Windows start screen.
•
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Starting XPressView
After you install the XPressView program, you are ready to begin
SNMP management of your TE100-S55.
•
From Windows start screen, click the XPressView icon. The
Welcome screen will appear.
START FROM SCRATCH
If this is your first time to run the XPressView program, you will
need to create an environment that represents the TE100-S55.
•
•
Click the AUTO DISCOVERY icon.
Enter the range of IP addresses to
search and XPressView will auto-detect all of the TE100-S55
switches in your network.
**As an option, you can click the DEVICE icon and
manually type each IP address of your TE100-S55.
•
For future use, save this environment by going to the
NETWORK menu and clicking the SAVE command.
NOTE: Each switch must have a unique IP address in order to
communicate with the network manager. The factory default IP
address of each TE100-S55 is 168.8.xxx.xxx. The last two bytes
of the IP address are identical to the last two bytes of the MAC
address, which is displayed on the back of each TE100-S55. The
MAC address can also be referenced through out-of-band
management (see chapter 3, page 24).
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OPEN AN EXISTING ENVIRONMENT
To open an existing environment, go to the NETWORK menu
and click the OPEN command. Choose the appropriate file name
and click the OK command. Your screen will display the list of
TE100-S55 icons and will allow management of these devices.
Operating XPressView
Once you create or open an environment, you are ready to view
or modify the TE100-S55 configuration and its network activities.
SELECT A DEVICE
From the main screen, click the TE100-S55
icon and the management menu will appear.
From the management menu, choose a port by clicking the port-
icon. Afterwards, choose the management function by clicking
one of the management-icon:
View/Modify the Switch Configuration.
Modify the parameters for Spanning Tree Algorithm.
Monitor the incoming and outgoing network traffic.
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VIEW/MODIFY SWITCH CONFIGURATION
If you click a port and then click the “Switch Configuration” icon,
the following screen will appear, allowing you to Enable or
Disable the selected port.
However, if you click the “Switch Configuration” icon without
clicking a port, the following screen will appear allowing you to
view the IP, Subnet mask and MAC addresses.
MODIFY THE SPANNING TREE ALGORITHM
If you click a port and then click the “STA” icon, the Port STA
screen will appear, allowing you to modify the port priority.
However, if you click the “STA” icon without clicking a port, the
following screen will appear, allowing you to modify the Bridge
Priority, Max, Hello and Forward parameters.
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MONITOR NETWORK TRAFFIC
When you click the “Monitor Network Traffic” icon, a query
control screen will appear, allowing you to choose the type of
packets to monitor. Click the packet types from the OID List, and
then click one of the Display types (text or graphic).
Display in TEXT format
Display in GRAPHIC format
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Chapter 5 Diagnostics
Power-On Self Test
A Power-On Self Test (POST) sequence takes place when the
TE100-S55 is first turned on (cold boot). Software reset (warm
boot) through the RS-232 port does not prevent unauthorized
remote re-boots.
The POST sequence checks the system integrity by performing
the following tests:
−
−
−
−
−
−
−
−
−
System boot
RAM test
Timer and interrupt controller tests
Cache controller test
RS-232 diagnostic port test
BIOS test
EEPROM checksum test
Program load checksum test
Ethernet ports test
Besides the Power On/Off LED, there are eight system Status
LEDs used to display the results of these tests during the POST
sequence. The LED status further display test results in two
categories, the System test and the Port test. Any errors from the
System tests means that the Switch failed to function. Any
error(s) from the Port test effects that individual port and the
remaining ports will be operational.
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System Status LEDs
TE100-S55 is equipped with eight Status LEDs which reflect the
Power-On Self Test results. If there is a system error, the Status
LED ꢀlight will be ON and the LEDs ꢁ-ꢂwill display the
error code.
Although some errors may be resolved easily, some errors may
require that the unit be returned to TRENDware reseller for
repair.
System error LED
Error
Status
Action
Off -ꢃꢄꢅ ꢆꢇꢈꢉꢊ
On - ꢋꢀꢌ ꢍꢁꢎꢏꢂ
No error
Normal
ꢃꢄꢅ ꢆꢇꢈꢉꢊ
ꢃꢀꢅ ꢆꢇꢈꢉꢂ
ꢃꢀꢅ ꢆꢇꢈꢏꢊ
ꢃꢀꢅ ꢆꢇꢈꢏꢂ
ꢃꢀꢅ ꢆꢇꢎꢉꢊ
ꢃꢀꢅ ꢆꢇꢎꢉꢂ
ꢃꢀꢅ ꢆꢇꢎꢏꢊ
ꢃꢀꢅ ꢆꢇꢎꢏꢂ
ꢃꢀꢅ ꢆꢁꢈꢉꢊ
ꢃꢀꢅ ꢆꢁꢈꢉꢂ
Record LED error code and
ontact technical support
Record LED error code and
return the unit.
Record LED error code and
return the unit.
Record LED error code and
return the unit.
Record LED error code and
return the unit.
Boot
RAM
Interrupt
controller
Timer
controller
Cache
controller
Record LED error code and
return the unit.
RS-232 port
Record LED error code and
ontact technical support
Record LED error code and
ontact technical support
Record LED error code and
ontact technical support
BIOS
EEPROM
Program
down-load
Port error LED
Port 1 - 5
error (s)
The system board is OK; the
eported port(s) is disabled.
ꢋꢄꢅ ꢍꢁꢎꢏꢂ
ꢐꢐꢐꢐꢐ
LED ꢅis
1
2 3 4 5
Record LED status and
ontact technical support.
port position
reserved.
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System Diagnostic LEDs
TE100-S55 is equipped with eight Diagnostic LEDs which reflect
status of add-on modules. The details of LEDs will be supplied
with each optional module package and will not be covered in this
manual.
System Utilization LEDs
TE100-S55 is equipped with eight Utilization LEDs which reflect
the LAN’s percentage of utilization. This is a measure of the
traffic on the network.
The LEDs ꢋ- ꢁindicates a low traffic on the network, while the
LEDs ꢎ-ꢂindicates a high traffic on the network. As the LEDs
increase in number, the network administrator should consider
optimizing the network for reduced traffic.
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Port Status LEDs
TE100-S55 is equipped with six Status LEDs which reflect the
status of each port.
As you connect a network cable to the TE100-S55, it will auto-
detect the type of cable and the corresponding 10/100 LED will
light up. Likewise, depending on the port connection, the
DUPLEX LED will light up to indicate its status of full or half
duplex signaling.
When a port connection is active, the LINK LED will light up to
indicate its operative state. Also, as activities occur on the
network, the RX or TX LED will light up to indicate its
transmission or reception of data.
When multiple packets are delivered at the same time, a collision
will occur and the COL LED will light up. Although collisions
are normal, if there’s too much, you should consider rearranging
the workgroups or optimize the network for reduced traffic.
Port LED Status
Port State
Action
On
100Mbps
10 Mbps
10/100
Off
On
Full Duplex
Half Duplex
Duplex
Off
On
Port Connection Normal
Port Connection Inactive
Link
Check connections on
this cable segment
Off
Off
No packet traffic
TD or RD Active
Heavy packet traffic
Tx or RX
Col
Blinking
On
Check if consistently
heavy
Off
No collision
Normal
Normal
Blinking
Collision Active
Jabber, serious problem
On
Check this segment
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Appendices
Appendix A Switch Default setting
Parameter
Default
Enable
Range
Data type
Spanning Tree State
Bridge Priority
Hello Time
Enable/Disable
0 - 65535
Integer
32768
1 - 10 sec.
6 - 40 sec.
5 - 30 sec.
0 - 10 ∧ 6
Integer
Integer
Integer
Integer
10 sec.
Max Age Time
Forward Delay Time
Aging Time
40 sec.
5 sec.
300 sec.
168.8.xx.xx
255.255.0.0
0.0.0.0
IP Address
Subnet Mask
Gateway Address
MAC Address
Port State
0080C8xxx
Enable
Auto
Port Physical
Port(s) Priority
0 - 255
Integer
128
Filtering Data Base
(Port State)
Disable
Forwarding
Blocking
Disable
Note: Bold type face indicates user-selective parameters.
The TE100-S55 default parameter settings
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Appendix B RS-232 Pin Specification
The RS-232 serial port of the TE100-S55 uses a 9-pin female
connector. The port can be connected to a PC emulating a VT100
terminal or an actual VT100 terminal.
For a local connection, the table below shows the pin layout of a
9 to 9-pin or a 9 to 25-pin cable connection between the
TE100-S55 and the management terminal.
TE100-S55 (DCE)
Signal name
Terminal (DTE)
Pin
for 9-pin for 25-pin Signal
name
number
1
2
3
4
not used
1
2
3
4
-
3
not used
RD
transmit (TD)
Receive (RD)
2
TD
Data Carrier Detect
(DCD)
20
DTR
5
6
signal ground (SG)
5
6
7
8
SG
Data Terminal Ready
(DTR)
DCD
7
8
9
clear to send (CTS)
request to send (RTS)
not used
7
8
9
4
5
-
RTS
CTS
not used
The TE100-S55 to Terminal RS-232 pin connections
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Appendix C RJ-45 Pin Specification
When connecting the TE100-S55 to another switch, bridge or a
hub, a modified cross-over cable is necessary. Please review
these products for matching cable pin assignments.
The following diagram and tables show the standard RJ-45
receptacle/connector and their pin assignments for the switch-to-
network adapter card connection and the cross-over cable for the
switch-to-switch/hub/bridge connection.
The standard RJ-45 receptacle/connector
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Contact
Media Direct Interface Signal
1
2
3
4
5
6
7
8
TD + (transmission)
TD - (transmission)
RD + (reception)
not used
not used
RD - (reception)
not used
not used
The Standard Category 3 cable, RJ-45 pin assignment
1 TD +
2 TD -
1 TD +
2 TD -
3 RD +
6 RD -
3 RD +
6 RD -
4 TD +
5 TD -
4 TD +
5 TD -
7 RD +
8 RD -
7 RD +
8 RD -
The pin assignment for Category 5, 4-pair cross-over cable
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Appendix D 10Base-T Module
The 10Base-T specification is the most popular cabling scheme
for conventional 10Mb Ethernet networks and is used in over
70% of LANs worldwide.
Although the TE100-S55 is equipped with five ports for 10Base-
T connections, it also provides an open slot for an optional 8-port
10Base-T module.
The 10Base-T module uses inexpensive two-pair Category 3, 4 or
5 UTP cable. It services distance of up to 100 meters and
supports full or half-duplexing.
How to Install the 10Base-T module
•
•
•
Unscrew and remove the cover slot from the front panel of
the TE100-S55.
Slide-in and securely screw the 10Base-T module into the
open slot of the TE100-S55.
Attach the UTP cable into the RJ-45 connectors of the
10Base-T module.
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Appendix E 100Base-FX/TX Module
The physical specification for Fast Ethernet cabling comes in
three different flavors. These include 100Base-TX (2-pair over
Cat 5 UTP), 100Base-T4 (4-pair over Cat 3 UTP), and 100Base-
FX (2 fiber connections).
The 100Base-TX specification is the most popular cabling
scheme for Fast Ethernet networks. Since it requires a UTP cable
similar to 10Base-T, installation and configuration of 100Base-
TX cabling is easy and cost-effective.
In contrast, the 100Base-FX specification requires the fiber optic
cabling which is more expensive than the conventional UTP
cabling. However, it has a definite appeal to widespread LANs
where cost of wiring is less important than the distance it delivers
to Ethernet LANs--400 meters for half-duplex segments and 2
kilometers for full-duplex segments.
For flexibility, the TE100-S55 provides an 100Base-FX/TX
module that’s equipped with both Fiber Optic and UTP ports. It
permit the users to choose the necessary cabling type that fits their
individual needs.
The 100Base-TX port requires two-pair Category 5 UTP cable or
two-pair Type 1 STP cable. It services distance of up to 100
meters and supports full or half-duplexing. The 100Base-FX port
requires one pair of 62.5/125 micron fiber-optic cable. It services
distance of up to 400 meters and supports full or half-duplex
operation. It is an ideal solution for backbone connections.
Although the 100Base-FX/TX module is equipped with two
ports (MIC and UTP connectors), please keep in mind that
only one port may be used at a time.
How to Install the 100Base-FX/TX module
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•
•
•
Unscrew and remove the cover slot from the front panel of
the TE100-S55.
Slide-in and securely screw the 100Base-FX/TX module into
the open slot of the TE100-S55.
Attach either the Fiber Optic cable or Cat 5 UTP cable to the
100Base-FX/TX module. Although this module is equipped
with two ports, only one port may be used at one time.
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Appendix F ISDN Module
An Integrated Services Digital Network (ISDN) is one of the
most rapidly expanding technologies for transmitting data and
voice over wide area networks (WANs). The popularity of ISDN
is due to its high-speed WAN connections at low cost, enabling
greater productivity not only for home office workers or internet
users, but also for corporate branch offices and remote sites.
In comparison, ISDN can transfer data more than four times as
fast as a cutting-edge 28.8 Kbps modem. In its simplest form,
ISDN offers the Basic Rate Interface (BRI), which has two
64Kbps B channels and a single 16Kbps D channel. The B
channels can be combined, making the maximum transmission
rate of 128Kbps. Furthermore, data compression enables an
ISDN link to achieve up to 512Kbps transmission speeds.
ISDN provides high-speed remote access that is ideal for
applications where analog connections are too slow and T1
connections are too expensive.
The ISDN Router module for the TE100-S55 is an excellent
solution for connecting individuals or offices to headquarters or to
the internet/intranet. It offers the equivalent bandwidth and
reliability of leased lines at a significantly lower cost.
The ISDN Router module uses a single ISDN BRI capable of
sending data over one B channel for data rates of 64Kbps or use
both B channels for data rates of up to 128Kbps. Optional data
compression can boost throughput up to 4-to-1 (512Kbps),
depending on the data being transferred.
How to Install the ISDN module
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•
•
•
Unscrew and remove the sot cover from the front panel of the
TE100-S55.
Slide-in and securely screw the ISDN module into the open
slot of the TE100-S55.
Attach the ISDN phone line into the RJ-11 port of the ISDN
module.
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Appendix G Hardware Specifications
SWITCH SPECIFICATION
•
Complies to IEEE 802.3 CSMA/CD 10Base-T, 100Base-TX,
100Base-FX Ethernet Standards
•
Complies to IEEE 802.1d Spanning Tree, IEEE 802.2 LLC,
and ISO 8807-3 standards
•
•
Switched IEEE 802.3 MAC layer frame size: 64-1518
NWAY Auto-negotiation for each network port providing
auto-detection of connected cable type, auto-sensing of full
or half duplex signaling and auto-configuration
•
•
Store-and-forward packet switching
Native SNMP management support with Ethernet
MIB II (RFC 1284) and bridge MIB (RFC 1286)
•
•
•
•
•
VLAN support
4,096 maximum entries for MAC Address Table
Comprehensive LED display of the system/port status
128KB EEPROM (flash memory) for firmware upgrade
One RS-232D (DB-9) port for Out-of-Band management
(asynchronous, 8-bit data, 1 stop bit, no parity, 19.2K baud)
•
•
•
Rack mountable (Fits standard 2U EIA 19” rack)
Five 10/100Mbps LAN ports built-in
Optional slot for add-on modules
PORT SPECIFICATION
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5 x 10/100Mbps LAN ports (fixed)
•
•
•
•
Five RJ-45 ports for Cat 3, 4 or 5 UTP cable
10 or 100Mbps data transfer rate
Full or half duplexing
NWAY Auto-negotiation
8 x 10Mbps LAN ports (optional module)
•
•
•
•
Eight RJ-45 ports for Cat 3, 4 or 5 UTP cable
10Mbps data transfer rate
Full or half duplexing
NWAY Auto-negotiation
1 x 100Base-FX/TX LAN port (optional module)
•
•
•
•
•
One MIC port for 62.5/125 microns multimode fiber optic
One RJ-45 ports for Cat 5 UTP or STP cable
100Mbps data transfer rate
Full or half duplexing
NWAY Auto-negotiation
1 x ISDN WAN port (optional module)
•
•
One RJ-11 port for ISDN phone line
Up to 128K baud rate (two 64Kbps channels)
PHYSICAL CHARACTERISTICS
Operating temperature:
Humidity:
Input power:
Power consumption:
Emission:
0 - 50 degrees Celsius
5% - 95% non-condensing
90 - 250 VAC, 50 - 60 Hz auto-select
20 watts maximum
FCC Class A, CE mark
UL, CSA
Safety:
Ventilation:
Dimension:
Weight:
2 built-in DC fans
17.36 in (w), 2.85 in (h), 9.37 in (d)
8 lb.
Warranty:
One year parts and labor
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INDEX
100Base-T .......................................................................See Fast Ethernet
Adding Optional Modules...................................................................... 19
Add-on modules ..................................................................................... 11
100Base-FX/TX Module.................................................................. 50
10Base-T Module............................................................................. 49
ISDN Module................................................................................... 52
Attaching Cables .................................................................................... 18
Attaching to the RS-232 Port ................................................................. 22
Bridge Priority................................................................................ 28, 29
Cabling rules for 100Base-TX................................................................ 13
Checking Status LEDs............................................................................ 20
CSMA/CD.................................................................................. 7, 8, 9, 54
TE100-S55 ................................................................................ 10, 11, 12
Designated Bridge................................................................................. 29
Designated Port .................................................................................... 30
Down-load New System Firmware ........................................................ 26
Ethernet................................................................................................... 8
XPressView ..............................................................16, 20, 21, 35, 36, 37
Fast Ethernet .................................................................7, 8, 9, 10, 11, 50
Filtering Data Base................................................................................. 26
Forward Delay................................................................................ 28, 31
Front Panel ......................................................................17, 19, 49, 51, 53
Gateway Address............................................................................ 24, 25
Hardware Specifications......................................................................... 54
Hello Time................................................................................. 24, 28, 31
Installing XPressView............................................................................ 36
IEEE 802.1D .................................................................................... 12, 54
IP Address............................................................................24, 25, 36, 37
ISDN ...............................................................................10, 11, 12, 17, 52
LEDs ...................................................................17, 19, 20, 41, 42, 43, 44
Load Factory Default Parameters........................................................... 26
Max. Age Time................................................................................ 28, 31
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Modify the Spanning Tree Algorithm .................................................... 39
Monitor Network Traffic........................................................................ 40
NWAY Auto-negotiation ..................................................... 10, 12, 25, 54
Operating XPressView........................................................................... 38
Out-of-Band Management.................12, 17, 20, 21, 22, 24, 28, 35, 38, 54
Path Cost............................................................................. 27, 29, 30, 45
Port Configuration.................................................................................. 25
Port Physical setting........................................................................ 25, 45
Port Priority.............................................................................. 28, 30, 39
Port State........................................................................24, 25, 35, 44, 45
Port Status LEDs .................................................................................... 44
POST.......................................................................................... 19, 20, 41
Power ON............................................................................................... 19
Power-On Self Test .................................................................... See POST
Priority level........................................................................................... 25
Rack mounting ....................................................................................... 18
RJ-45 Pin Specification.......................................................................... 47
Root Bridge....................................................................24, 28, 29, 30, 31
Root Path Cost...................................................................................... 29
Root Port............................................................................. 24, 25, 28, 30
RS-232 Pin Specification ....................................................................... 46
Service and support................................................................................ 3
SNMP Management ......................................12, 16, 20, 21, 35, 36, 37, 54
Spanning Tree Algorithm..........................................12, 25, 27, 35, 38, 39
STA parameters.......................................................................... 28, 29, 32
Starting XPressView .............................................................................. 37
Switch Configuration ......................................................24, 25, 35, 38, 39
Switch Default setting ............................................................................ 45
Switching Technology.............................................................................. 8
System Diagnostics LEDs...................................................................... 43
System Status LEDs............................................................................... 42
System Utilization LEDs........................................................................ 43
Terminal emulation .............................................................. 21, 22, 23, 24
Unpacking .............................................................................................. 16
VT100 Terminal......................................................................... 22, 23, 46
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