EtherHub-16mi+
Advanced Reference Guide
EH1502S
E0398-R01
150858-101
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EtherHub 1500 System
Advanced Reference Guide
Introduction
Contents
The master hub (and connected stack) can be managed through a PC or
modem connection to the hub’s serial port, or with SNMP-based network
management software such as AccView/Open. Using the configuration
program, you can perform the following tasks:
Introduction
1
Making the Connections Required for System Configuration
Onsite Connection
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• Enable/disable any port
• Assign backup ports
Modem Connection
In-Band Network Connection
• Set threshold values
• Configure SNMP parameters
• Display system information or statistics
• Download system firmware
• Restart the system
Starting the Configuration Program
2
Using Configuration Program
System Menu
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Making the Connections Required for System Configuration
Displaying System Information
Changing System Configuration
Assigning Trap Managers
Downloading System Software
Restarting the Agent
Reverting Configuration to Factory Settings
Save Configuration
Reset Configuration
The diskette included with the EtherHub-16mi+ contains a menu-driven
configuration program. To use this program, make a direct PC or modem
connection to the serial port on the master hub in the stack.
This section describes how to access the menu-driven configuration program via:
• Onsite connection
A workstation connected to the serial port on the hub.
• Modem connection
Control Menu
A workstation connected to the serial port of a remote hub via modems.
• In-band connection
Configuring Hub Parameters
Configuring Port Parameters
Defining Backup Ports
It also describes how to access the embedded SNMP agent over the network
using AccView/Open or other third-party network management software.
Setting External Configure Buttons
Performance Menu
Threshold Menu
Onsite Connection
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Attach a PC to the serial port on the master hub. Use the null-modem cable
(and DB9 / RJ-45 converters) provided with this package, or use a null modem
connection that complies with the wiring assignments shown in the back of
this guide.
Threshold Parameters
EventActivation
Troubleshooting
11
Network Management Access
11
Modem Connection
Pin Assignments for Serial Port Connections
DB9 Serial Port Pin Description
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Configure the Hub Site: Connect the master hub's DB9 serial port to the
modem's serial port using standard cabling. For most modems, which use a
25-pin port, you will have to provide an RS232 cable with a 9-pin connector on
one end and a 25-pin connection on the other end. You do not have to set the
modem at the hub's site, because the hub will automatically configure it to
auto-answer mode.
DB9 Port Pin Assignments
DB9 Serial Port to RJ-45 Converter Connector Pin Assignment
DB9 PC's COM Port to RJ-45 Converter Connector Pin Assignment
DB25 RS232 to RJ-45 Converter Connector Pin Assignment
Connection from Hub's 9-Pin Serial Port to PC's 9-Pin COM Port
Connection from Hub's 9-Pin Serial Port to Modem's 25-Pin DCE Port
Connection from Hub's 9-Pin Serial Port to PC's 25-Pin DTE Port
Configure the Remote Site: At the remote site, connect the PC's COM port
(COM 1~4) to the modem's serial port.
In-Band Network Connection
Optional Management Software
13
The EtherHub 1500 sytem can also be managed from a computer using
network management software such as AccView/Open. However, prior to
accessing the hub, you must first configure it with a valid IP address, subnet
mask, and default gateway using an out-of-band connection.
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EtherHub 1500 System
Advanced Reference Guide
Note: The on-board program only provides access to basic configuration functions. To
access the full range of SNMP mangement functions, you must use SNMP-based
network mangement software. Accton provides Windows-based SNMP software
calledAccView/Open with this package. Note thatAccView/Open’s Hub Manager
module can be easily integrated into most third-party management platforms.
3. If setting up a remote connection via modems:
Select Modem Channel to open the Phone List menu as shown below, and
enter the phone number and press [Enter] to start the dialing mechanism.
Starting the Configuration Program
Insert the distribution diskette provided with your EtherHub-16mi+ into the PC's
floppy drive.Then activate the EtherHub 1500 System Configuration Program
as described below.
Note: 1. When using a PCMCIA modem connection, add the following entry to your
config.sys file: “device=cardtalk.sys /A /Com3IRQ=4”. If your PC has a PCMCIA
modem or multi-I/O card, set the proper IRQ by typing "EH15SCP/i [irq #]".
2. Help is available by entering "EH15SCP/?".
3. This program can only run under DOS, or in Windows DOS shell.
1. Type "EH15SCP" at the DOS prompt C:\>EH15SCP. Using arrow keys, select
the communication port on the workstation that is connected to the hub.
Once the connection is established, the main menu for out-of-band
configuration appears as shown below.
Using Configuration Program
The EtherHub 1500 System Configuration Program allows you to define
system parameters, manage and control stacked hubs and associated ports,
set threshold levels, and monitor network conditions. The following table
briefly describes the menu selections available for this program.
Menu
System
Description
Defines description for the system.
Sets system parameters.
Configures Communities, IP and IPX trap managers.
Downloads new version of firmware to update your system.
Restarts your system.
Information -
Configuration -
Trap Managers -
Download -
2. Select the appropriate option from the DCE/DTE dialog box:
Terminal Channel for local hookup, or Modem Channel for remote connection.
Restart -
Factory Setting -
Reverts all configuration selections to factory default settings.
Save Configuration - Saves the configuration changes made during the current session.
Reset Configuration - Restore the last saved configuration.
Control
Hub -
Port -
Isolates/attaches a hub, or sets the hub's segment..
Disables/enables a port..
Backup port -
Sets up to 3 pairs of backup ports. Each pair contains a master
and slave port. The slave port is normally disabled. When the
master port fails, the system disables the master port and enables
the slave port to maintain the link.
Push button -
Enables/disables Configure button to prevent unauthorized use.
Performance Provides 4 sub-menus - System, Segment, Hub and Port. This selection allows you to
view network performance for the selected component. Performance is measured in
terms of frames received, number of bytes, collision rate, CRC errors, alignment errors,
and total errors.
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EtherHub 1500 System
Advanced Reference Guide
Changing System Configuration - Use the Configuration command from the
System Menu to modify current values for the following parameters:
Menu
Threshold
Description
(continued)
Provides 5 sub-menus - System, Any Hub, Any Port, Select Hub and Select Port.
This menu allows you to set threshold levels for the hub or port in terms of frames
received, number of bytes, collisions, CRC errors, alignment errors and total errors.
System Menu
Field
Description
IP Address
IP address of the agent you're managing. The EtherHub system may
be run on SNMP protocol over UDP/IP transport protocol. In this
environment, all systems on the Internet, such as network interconnection
devices and Network Management Stations (e.g., the PC running
AccView) are assigned an IP address.
Menu
Description
Information
Configuration
Displays EtherHub system information.
MAC Address
Subnet Mask
Hardware address of EtherHub-16mi+.
Modifies various parameter settings necessary for communicating with
the management agent.
Subnet mask of the agent you've selected. This mask identifies the
host address bits used for routing to specific subnets.
Trap Managers
Download
Selects management stations to receive trap messages from the system.
Downloads a binary file to the SNMP agent.
Default Gateway
Default gateway used in passing trap messages from the EtherHub
agent to the management station.
Restart
Resets the SNMP agent.
Default NMS
For internal use only.
For internal use only.
Factory Settings
Reverts all configuration settings to the original factory settings.
NMS-Download File
IPX Frame Type
Save Configuration
Reset Configuration
Saves the configuration changes made during the current session.
Restores the last saved configuration.
The selected format used on the LAN; i.e., type used by the IPX
network where the EtherHub-16mi+ is installed. If the specified frame
type is not detected, the EtherHub-16mi+ will automatically detect the
current type. (Values: 802.3, Ethernet II, SNAP, 802.2)
Displaying System Information - Use the Information command to display and
modify system information about the EtherHub stack, or for quick system
identification. View a description of the system, including:
IPX Network Number
Identifies the IPX network number for the connected slot. You can
disable IPX protocol by setting this number to zero.
Assigning Trap Managers - Use the Trap Managers command from the
System Menu to modify current values for the following parameters:
Field
Description
System Description
System Uptime
System Name
Contact
Name and version of the EtherHub-16mi+ software.
Length of time the EtherHub management agent has been running.
Name assigned to the EtherHub system.
Contact person for the system.
Location
Specifies the area or location where the system resides.
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EtherHub 1500 System
Advanced Reference Guide
Control Menu
Field
Description
SNMP Community Names
The community strings authorized for trap management access. All
community strings used for IP and IPX Trap Managers must be listed in
this table.
Community Name
Access
A community entry authorized for trap management access.
Management access is restricted to read-only (RO) or read/write (RW).
The status of the current entry can be set to VALID or INVALID.
Status
Menu
Description
IP Trap Managers
IP management stations selected to receive trap messages from the
system.
Hub
Includes hub description and commands to isolate/reattach network
connection, or assign hub to a specified segment.
IP Address
Community Name
Status
IP address of the management station.
Port
Includes port description and command to enable/disable selected port.
Defines master/slave port pairs used for emergency backup.
Enables/disables external Configure button on selected hub.
The community string required for trap management access.
The status of the current entry can be set to VALID or INVALID.
Backup Port
Push Button
IPX Trap Managers
IPX management stations selected to receive trap messages from the
system.
Configuring Hub Parameters - Use the Hub command from the Control menu
to configure any hub in the stack. (Select the required hub using the <F4> and
<F5> function keys.) This menu provides a brief description of the selected
hub, and also allows you to isolate/reattach the hub from the network.
Net Number
Node ID
Identifies the IPX network number for the connected slot.
MAC address of the authorized trap manager.
Community Name
Status
The community string required for trap management access.
The status of the current entry can be set to VALID or INVALID.
Downloading System Software - Use the Download command from the
System Menu to load available software updates into the agent's flash ROM.
The download file should be an EtherHub binary file from Accton Technology
Corporation; otherwise the agent will not accept it.
Invoking this command brings up the Download dialog box. When all entries
are confirmed, the display will change to show the progress of the download
process. After downloading the new software, the agent will automatically
restart itself. The following describes each entry in the dialog box:
Field
Description
Hub ID
Hub identifier within the stack. (Up to 10 hubs may be connected via
the management channel.) Note that hub IDs can only be assigned
using the Configure button as described in the Quick Installation Guide.
Position
Name
The physical position in the stack.
Any user-defined name for the selected hub.
Status
The stack connection may be set to ISOLATED or ATTACHED. Note
that the Isolated LED will be lit if the hub is isolated. (Although the
status of OTHER is provided, this is for internal use only.)
Field
Description
Segment
Attach the hub to a specified segment. The appropriate Segment icon
will light up to show that the hub has been connected.
Timeout
Time to wait for a response.
Retry
Number of attempts to make contact.
The binary file to download.
Type
Indicates hub type as EH1501S, or EH1502S (Master or Slave).
Indicates the current firmware version number.
Filename
Firmware Ver.
Transferred Block
Total Blocks
Current number of data block being transferred.
Total number of blocks to transfer.
Restarting the Agent - Use the Restart command from the System menu to
reset a selected agent. LEDs on the agent will light up sequentially as it
executes the initialization test.
Reverting Configuration to Factory Settings - Use the Factory Settings
command from the System menu to change all configuration settings back to
the factory defaults.
Save Configuration - Saves configuration settings made during current session.
Reset Configuration - Restores configuration settings saved the last time.
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EtherHub 1500 System
Advanced Reference Guide
Configuring Port Parameters - Use the Port command from the Control menu
to configure the ports for any hub in the stack. (Select the required hub using
the <F4> and <F5> function keys.) This menu provides a brief description of
the selected hub, and also allows you to enable/disable any port in the
selected hub.
Field
Description
(continued)
Slave Port
Hub
Pair member serving as the backup link.
Hub ID for the slave port.
Port
Port identifier for the slave port.
Setting the External Configure Buttons - Use the Push Button command in
the Control Menu to disable or enable the Configure button on any hub.
Performance Menu
Displays statistics for the System (entire stack), selected Segment, selected
Hub, or all Ports on a specified hub. (Select any segment or hub using the
<F4> and <F5> function keys.)
Field
Description
Hub ID
Position
Port Identifier
Name
Hub identifier within the stack.
The physical position in the stack.
Numeric identifier 1~16 or ALT.
User-defined name for selected port.
Type
Connection types include 10BASE-T (RJ-45), BNC, AUI or FIBER.
Any port may ENABLED or DISABLED.
Indicates if the port is partitioned.
Status
Part
Link State
Indicates if the port has a valid connection to an external device.
Defining Backup Ports - Use the Backup Port command in the Control Menu to
define up to three master/slave port pairs. If the connection to the master port
fails, the slave port will automatically take over.
Menu
Description
Frames
Number of frames passing through this device.
Bytes
Number of bytes passing through this device.
Collisions
Allignment Errors
CRC Errors
Number of simultaneous node transmissions detected by this device.
Number of mis-synchronized data packets detected by this device.
Field
Description
Number of Ethernet Cyclic Redundancy Check errors detected by this
device.
Backup Set
Defines up to three backup port pairs; each of which can be set to
ACTIVE or INACTIVE.
Total Errors
Total number of errors, including FCS, allignment, Frames Too Long,
Short Events, Late Events, Jabber, and Data Rate Mismatches
detected on this device.
Master Port
Hub
Pair member serving as the primary link.
Hub ID for the master port.
Port
Port identifier for the master port.
1: The values displayed have been accumulated since the last system reboot or counter reset.
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EtherHub 1500 System
Advanced Reference Guide
Threshold Menu
Event Activation - After initial event activation (crossing the high watermark),
the monitored variable must reach the low watermark before another event is
activated (again crossing the high watermark).
Select the Threshold command from the menu bar to define limits for the
parameters monitored by the hub system. Limits can be set for the System
(entire stack), Any Hub or Any Port, or a Select Hub or Select Port. Variables to
monitor include frames, bytes, collisions, frame allignment errors, CRC errors
or total errors. High and low watermarks may be set. While the trigger action
includes warning, warning and isolate (for hubs), or warning and disable (for
ports). When any threshold is exceeded, the agent will issue an alarm to the
network management station based on the selected action.
T: triggered N: not triggered
N
T
T
H
L
Notes: 1. The rate for all values is per one second.
2. Threshold entries are stored in the agent.
Troubleshooting
Refer to the Quick Installation Guide for a more detailed listing of troubleshooting
procedures. However, if you have trouble making a connection via SNMP
network management software, then please refer to the following section.
Network Management Access
To set thresholds:
You can access the EtherHub-16mi+ from anywhere within the attached
network. However, you must first configure it with a valid IP address, subnet
mask, and default gateway. If you have trouble establishing a link to the SNMP
agent (with network management software such as AccView/Open), check to
see if you have a valid network connection. Then verify that you entered the
correct IP address from your location. Also, be sure the port through which
you are connecting to the hub has not been disabled. (See the Control Menu
on page 7.) If it has not been disabled, then check the network cabling that
1. Open the Threshold dialog box from the menu bar.
2. Select the system component (Type: System, Any Hub, Any Port, Select Hub,
Select Port). If you choose Select Hub or Select Port, then choose the Hub
ID or Port ID using the <F2> function key.
3. Select the variable to monitor (Variable: Frames, Bytes, Collisions,
Allignments, CRCs or Total Errors). If you choose Select Hub or Select Port,
then choose the variable Type using the <F2> function key.
runs between your management site and the stack.
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4. Input an integer value for the low and high watermarks.
5. Select the appropriate action (Action: INACTIVE, WARNING, WARNING &
ISOLATE for hubs, or WARNING & DISABLE for ports).
Pin Assignments for Serial Port Connections
DB9 Serial Port Pin Description
9
6. Implement your settings by pressing the <F3> function key.
The DB9 serial port on the back panel is used to connect the hub to a
Threshold Parameters - Hub/Port parameters include the following items:
management device. The configuration program can be accessed from a PC,
or from a remote location via a modem connection. You can use the
management port to configure port settings (e.g., enabled or disabled), or to
update device firmware. The pin assignments used to connect various device
types to the hub's management port are provided in the following tables.
DB9 Port Pin Assignments
EIA
CCITT
Description
Hub's
DB9 DTE
Pin #
PC DB9
DTE
Modem
Signal
Circuit Signal
DB25 DCE Direction
Pin #
Pin #
DTE-DCE
<---------
<---------
--------->
--------->
---------
<---------
--------->
<---------
<---------
Parameter
Description
CF
BB
BA
CD
AB
CC
CA
CB
CE
109
104
103
108.2
102
107
105
106
125
DCD (Data Carrier Detected)
RxD (Received Data)
TxD (Transmitted Data)
DTR (Data Terminal Ready)
SG (Signal Ground)
DSR (Data Set Ready)
RTS (Request-to-Send)
CTS (Clear-to-Send)
1
1
8
3
2
Frame
The total number of frames.
The total number of bytes.
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
Bytes
Collisions
Multiple packets transmitted over a medium at the same time, making them
unintelligible.
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Alignments
CRCs
Frame alignment errors occur when the received frame is a multiple of 8 bits.
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5
This error occurs when the cyclic redundancy check for a frame is wrong.
(The cyclic redundancy check an error-checking algorithm used to indicate
frame reception errors.)
RI (Ring Indicator)
22
Total Errors
The total number of collisions, frame alignment errors and CRC errors.
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EtherHub 1500 System
Advanced Reference Guide
Connection from Hub's 9-Pin Serial Port to Modem's 25-Pin DCE Port
DB9 Serial Port to RJ-45 Converter Connector Pin Assignment
Hub's 9-Pin
Serial Port
Modem's 25-Pin
COM Port
RJ-45 Pin
Mapping
EH1502S
DB9
CCITT Signal
Description
1
2
3
4
5
6
7
8
9
<------ DCD -------
<------ RXD -------
-------- TXD ------>
8
3
2
DTR (Data Terminal Ready)
RxD (Received Data)
TxD (Transmitted Data)
SG (Signal Ground)
RI (Ring Indicator)
CTS (Clear-to-Send)
RTS (Request-to-Send)
DCD (Data Carrier Detected)
DSR (Data Set Ready)
1
2
3
4
5
6
7
8
4
2
3
5
9
8
7
1
6
-------- DTR ------> 20
-------- SGND -----
<------ DSR -------
-------- RTS ------>
<------ CTS -------
<------ RI -------
7
6
4
5
22
NC
Connection from Hub's 9-Pin Serial Port to PC's 25-Pin DTE Port
Hub's 9-Pin Serial Port Null Modem PC's 25-Pin DTE Port
1 DCD 1 8 DCD
DB9 PC's COM Port to RJ-45 Converter Connector Pin Assignment
RJ-45 Pin
Mapping
EH1502
DB9
Description
1
DTR (Data Terminal Ready)
RxD (Received Data)
TxD (Transmitted Data)
SG (Signal Ground)
RI (Ring Indicator)
CTS (Clear-to-Send)
RTS (Request-to-Send)
DCD (Data Carrier Detected)
DSR (Data Set Ready)
1
2
3
4
5
6
7
8
6
3
2
5
9
7
8
1
4
2 RXD
3 TXD
4 DTR
5 SGND
6 DSR
7 RTS
8 CTS
9 RI
2
3
4
5
6
7
9
20
3
2
8
20
7
4
3
2
TXD
RXD
20 DTR
7
6
4
5
SGND
DSR
RTS
CTS
5
6
22 RI
NC
DB25 RS232 to RJ-45 Converter Connector Pin Assignment
Optional Management Software
RJ-45 Pin
Mapping
EH1502S
DB25
20
3
SW6120: AccView EtherHub Manager for SunNet Manager
SW6121: AccView EtherHub Manager for OpenView/Windows
SW6122: AccView EtherHub Manager for OpenView/Unix
SW6122: AccView EtherHub Manager for NMS
SW6130: Network Mangement Support Modules for NMM
SW7300: EtherHub 1500 Security Module
Description
DTR (Data Terminal Ready)
RxD (Received Data)
TxD (Transmitted Data)
SG (Signal Ground)
RI (Ring Indicator)
CTS (Clear-to-Send)
1
2
3
4
5
6
2
7
22
5
RTS (Request-to-Send)
DCD (Data Carrier Detected)
DSR (Data Set Ready)
7
8
NC
4
8
6
Connection from Hub's 9-Pin Serial Port to PC's 9-Pin COM Port
Hub's 9-Pin
Serial Port
PC's 9-Pin
COM Port
CCITT Signal
1 DCD
------- DCD --------
<----- TXD ---------
------- RXD ------>
------- DSR ------>
------- SGND ------
------- DTR --------
------- CTS ------>
<------ RTS --------
------- RI -----------
1
2 RXD
3 TXD
4 DTR
5 SGND
6 DSR
7 RTS
8 CTS
9 RI
3
2
6
5
4
8
7
9
12
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