Cabletron Systems SEHI100TX-22 User manual

Title Page
Portable Management Application
for the
SEHI100TX-22™
User’s Guide
®

i
Notice
Cabletron Systems reserves the right to make changes in speciÞcations and other information
contained in this document without prior notice. The reader should in all cases consult Cabletron
Systems to determine whether any such changes have been made.
The hardware, Þrmware, or software described in this manual is subject to change without notice.
IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL, INDIRECT,
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Copyright © 1998 by Cabletron Systems, Inc. All rights reserved.
Printed in the United States of America.
Order Number: 9031975-E2 April 1998
Cabletron Systems, Inc.
P.O. Box 5005
Rochester, NH 03866-5005
SPECTRUM , MiniMMAC , FNB , Multi Media Access Center , and DNI are registered trademarks,
and Portable Management Application , IRM , IRM2 , IRM3 , IRBM , ESXMIM , ETSMIM , EMME ,
EMM-E6 , ETWMIM , FDMMIM , FDCMIM , MicroMMAC , MRXI , MRXI-24 , NB20E , NB25E , NB30 ,
NB35E , NBR-620 , SEHI , TRBMIM , TRMM , TRMM-2 , TRMM-4 , TRMMIM , TRXI , Media Interface
Module , MIM , and Flexible Network Bus are trademarks of Cabletron Systems, Inc.
UNIX and OPENLOOK are trademarks of Unix System Laboratories, Inc. OSF/Motif and Motif
are trademarks of the Open Software Foundation, Inc. X Window System is a trademark of
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are registered trademarks of Apple Computer, Inc. Banyan is a registered trademark of Banyan
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registered trademark of Novell, Inc. CompuServe is a registered trademark of CompuServe. Sun
Microsystems is a registered trademark, and Sun , SunNet , and OpenWindows are trademarks of Sun
Microsystems, Inc.

ii
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iii
Contents
Chapter 1 Introduction to SPMA for the SEHI100TX-22
Using the SEHI UserÕs Guide...................................................................................... 1-2
WhatÕs NOT in the SEHI100TX UserÕs Guide . . . ............................................. 1-2
Conventions................................................................................................................... 1-3
Screen Displays ...................................................................................................... 1-4
Using the Mouse .................................................................................................... 1-5
Getting Help .................................................................................................................. 1-6
SEHI100TX Firmware................................................................................................... 1-7
Year 2000 Compliance ........................................................................................... 1-7
Chapter 2 Using the SEHI100TX HubView
Using the Hub View ..................................................................................................... 2-1
Navigating Through the Hub View .................................................................... 2-2
Hub View Front Panel........................................................................................... 2-2
Using the Mouse in the Hub View Ports Display ............................................. 2-5
Hub View Port Color Codes................................................................................. 2-7
Monitoring Hub Performance..................................................................................... 2-7
Port Display Form.................................................................................................. 2-8
Checking Device Status and Updating Front Panel Info ............................... 2-10
Checking Module Status..................................................................................... 2-12
Checking Repeater Status................................................................................... 2-13
Checking Port Status ........................................................................................... 2-14
Checking Statistics............................................................................................... 2-16
General/Error Statistics............................................................................... 2-17
The SEHI100TX Error Priority Scheme...................................................... 2-19
Frames Statistics............................................................................................ 2-20
Managing the Hub...................................................................................................... 2-20
Setting the Polling Intervals ............................................................................... 2-20
Enabling/Disabling Ports................................................................................... 2-22
Chapter 3 Link/SegTraps
What is a Segmentation Trap?..................................................................................... 3-1
What is a Link Trap?..................................................................................................... 3-2
Enabling and Disabling Link/Seg Traps ................................................................... 3-2
ConÞguring Link/Seg Traps for the Repeater................................................... 3-4
Viewing and ConÞguring Link/Seg Traps for Hub Modules......................... 3-4
Viewing and ConÞguring Link/Seg Traps for Ports ........................................ 3-6

Contents
iv
Chapter 4 Repeater Redundancy
Setting Network Circuit Redundancy........................................................................ 4-1
ConÞguring a Redundant Circuit........................................................................ 4-2
Monitoring Redundancy..............................................................................................4-6
Appendix A SEHI100TX MIB Structure
IETF MIB Support ........................................................................................................A-1
SEHI100TX MIB Structure...........................................................................................A-1
A Brief Word About MIB Components and Community Names ..................A-2
Index

1-1
Chapter 1
Introduction to SPMA
for the SEHI100TX-22
How to use the SEHI User’s Guide; manual conventions; contacting Cabletron Global Call Center;
SEHI firmware versions supported by SPMA
The SEHI100TX-22 is an intelligent repeating Fast Ethernet hub, which when
combined with the SEH100TX-22 non-intelligent stackable hub, can provide from
22 to as many as 120 100Base-TX Ethernet connections in a single stack. Each
SEHI100TX-22 and SEH100 TX-22 provides front panel ports for network
connections, and a rear-panel HUBStack Interconnect Bus port for stackable
connections.
The SEHI100TX-22 intelligent stackable hub is designed to manage one or more of
the SEH100TX-22 non-intelligent stackables. It provides 22 100Base-TX network
ports via RJ45 connectors and one optional user-conÞgurable EPIM port (which
allows for ßexible network connection options, including SMA or ST Þber optic
cable, thin coax, or AUI cable). Although the SEHI100TX-22 is the management
device, providing full packet and error statistics for the stack, it can be located
anywhere in the stack.
Each SEH100TX-22 non-intelligent hub provides 22 100Base-TX network ports
via RJ45 connectors and two optional user-conÞgurable EPIM ports. Up to four
SEH100TX-22s can be included in the stack. The entire stack is counted as only
one repeater hop.
The SEHI100TX-22 fully conforms to the IEEE 802.3 Repeater, AUI, and 10BASE-T
speciÞcations. It will transmit re-timed data packets, regenerate preamble, extend
fragments, arbitrate collisions, and automatically partition problem segments.

Introduction to SPMA for the SEHI100TX-22
1-2 Using the SEHI User’s Guide
Using the SEHI User’s Guide
Your SPECTRUM Portable Management Application (SPMA) for the
SEHI100TX-22 consists of a number of different applications, each of which
provides a portion of the overall management functionality. Each of these
applications can be accessed from the icon menu (if you are using a management
platform) and from the command line (if you are running in stand-alone mode);
in addition, several applications can also be accessed from within the Hub View, a
graphical display of the SEHI and its ports.
The SEHI UserÕs Guide describes how to use many of the applications included
with the module; note that the instructions provided in this guide apply to the
SEHI100TX regardless of the operating system or management platform you are
using. Instructions for launching each individual function from the command line
(stand-alone mode) are also included in each chapter.
Following is a description of the applications described in this guide; while we
provide as much background information as we can, we do assume that youÕre
familiar with Ethernet networks and general network management concepts:
¥ Chapter 1,
Introduction to SPMA for the SEHI100TX-22 , describes the
SEHI 100 TX-22 UserÕs Guide and the conventions used in this and other
SPMAmanuals, explains where to Þnd information about the SEHI100TX, and
tells you how to contact Cabletron Systems Global Call Center.
¥ Chapter 2, Using the SEHI100TX Hub View , describes the visual display of
the Hub and explains how to use the mouse within the Hub View. The
operation of some basic functions available only from within the Hub View
(changing the Hub View display, opening menus and windows, enabling and
disabling ports, checking device and port status, and so on) are also described.
¥ Chapter 3, Link/Seg Traps , describes how to conÞgure link and segmentation
traps to suit your management needs. You can access the Link/Seg Traps
application from the icon menu, the Hub View, or the command line.
¥ Chapter 4, Redundancy , describes how to conÞgure redundant circuits to keep
your network connections up and running in the event of a single portÕs
failure. You can access the Redundancy application from the icon menu, the
Hub View, or the command line.
¥ Appendix A, SEHI100TX MIB Components , lists the IETF MIBs supported by
the SEHI100TX, and describes their arrangement in a series of MIB
components. A description of the objects controlled by each component is also
included.
What’s NOT in the SEHI100TX User’s Guide . . .
The following standard SPMA tools are available through the SEHI100TX module
and are explained in the SPECTRUM Portable Management Application Tools
Guide :

Conventions 1-3
Introduction to SPMA for the SEHI100TX-22
¥ Charts, Graphs, and Meters
¥ Community Names
¥ MIB I,II
¥ MIBTree
¥ TFTP Download
¥ Trap Table
¥ Utilities (Global Community Names, Find MAC Address and TFTP)
Charts, Graphs, and Meters are accessible from the Hub View and the command
line; the Utilities, and MIBTree applications are accessible from the platform
console window Tools menu, the Stand-alone Launcher applications menu, or the
command line; and the rest of the tool applications (except Telnet) are available
from the icon menu, the Hub View, or the command line. (The Telnet application
is available only from the icon menu or the command line.)
Instructions on discovering Cabletron devices, creating icons, and accessing the
icon menus within your management platform are included in your Installing
and Using SPECTRUM for ... guide. If you are using SPMA for the SEHI100TX in
stand-alone mode Ñ that is, without beneÞt of a speciÞc network management
system Ñ instructions for starting each application from the command line are
included in each chapter of this guide and the SPMA Tools Guide .
Conventions
The family of SPECTRUM Portable Management Applications can work with a
number of different network management systems running on several different
operating systems and graphical user interfaces. This versatility presents two
documentation problems: Þrst, there is no standard terminology; and second, the
appearance of the windows will differ based on the graphical interface in use. For
the sake of consistency, the following conventions will be followed throughout
this and other SPMA guides.
NOTE
Graphing capabilities are provided by an application that is included in HP Network
Node Manager and IBM NetView; therefore, graphs are only available when SPMA is
run in conjunction with one of these network management platforms. If you are running
SPMA in a stand-alone mode or in conjunction with SunNet Manager or Solstice
Enterprise Manager, no graphing options will be displayed on buttons or menus. Note
that the screens displayed in this guide will include the graph-related options where they
are available; please disregard these references if they do not apply.

Introduction to SPMA for the SEHI100TX-22
1-4 Conventions
Screen Displays
SPMA runs under a variety of different operating systems and graphical user
interfaces. To maintain a consistent presentation, screen displays in this and other
SPMA guides show an OSF/Motif environment. If youÕre used to a different GUI,
donÕt worry; the differences are minor. Buttons, boxes, borders, and menus
displayed on your screen may look a bit different from what you see in the guide,
but theyÕre organized and labelled the same, located in the same places, and
perform the same functions in all screen environments.
Some windows within SPMA applications can be re-sized; those windows will
display the standard window resizing handles employed by your windowing
system. Re-sizing a window doesnÕt re-size the information in the window; it just
changes the amount of information that can be displayed (see Figure 1-1). When
you shrink a window, scroll bars will appear as necessary so that you can scroll to
view all the information that is available.
Figure 1-1. Window Conventions
Some windows will also contain a button; selecting this button
launches a History window (Figure 1-2) which lists all footer messages that have
been displayed since the window was Þrst invoked. This window can help you
keep track of management actions you have taken since launching a management
application.
Use the scroll bars
provided to choose
what to display in a
window that’s been
resized
Click here to
display footer
message history

Conventions 1-5
Introduction to SPMA for the SEHI100TX-22
Figure 1-2. The History Window
Using the Mouse
The UNIX mouse has three buttons, as shown in Figure 1-3. Procedures within the
SPMA document set refer to these buttons as follows:
Figure 1-3. Mouse Buttons
If youÕre using a two-button mouse, donÕt worry. SPMA doesnÕt make use of
mouse button 2. Just click the left button for button 1 and the right mouse button
when instructed to use mouse button 3.
Button 1
Button 2
Button 3

Introduction to SPMA for the SEHI100TX-22
1-6 Getting Help
Whenever possible, we will instruct you on which mouse button to employ;
however, menu buttons within SPMA applications will operate according to the
convention employed by the active windowing system. By convention, menu
buttons under the Motif windowing environment are activated by clicking the left
mouse button (referred to as mouse button 1 in SPMA documentation), and there
is no response to clicking the right button (mouse button 3). Under
OpenWindows, menu buttons can be activated by clicking the right button, and
convention dictates that the left button activates a default menu option; within
SPMA, that default option will also display the entire menu. Because of this
difference, references to activating a menu button will not include instructions
about which mouse button to use. All other panels from which menus can be
accessed, and all buttons which do not provide access to menus, will operate
according to SPMA convention, as documented.
Getting Help
If you need technical support related to SPMA, or if you have any questions,
comments, or suggestions related to this manual or any of our products, please
feel free to contact the Cabletron Systems Global Call Center. Before calling,
please have the following information ready:
¥ The product name and part number.
¥ The version number of the program that you need help with. SPMA is
modular, which means each application will have a speciÞc revision number.
Where applicable, an INFO button provides the version number; you can also
view the version number for any application by typing the command to start
the application followed by a -v .
You can contact the Cabletron Systems Global Call Center via any of the following
methods:
By phone: Monday through Friday between 8 AM and 8 PM
Eastern Standard Time at [phone]
By mail: Cabletron Systems, Inc.
PO Box 5005
Rochester, NH 03866-5005
By Internet mail: [email protected]
FTP: ftp.ctron.com (134.141.197.25)
Login anonymous
Password your email address
By BBS: [phone]
Modem Setting 8N1: 8 data bits, 1 stop bit, No parity

SEHI100TX Firmware 1-7
Introduction to SPMA for the SEHI100TX-22
For additional information about Cabletron Systems products, visit our
World Wide Web site: http://www.cabletron.com/ . For technical support,
select Service and Support .
SEHI100TX Firmware
SPMA support for the SEHI100TX has been tested against Þrmware version
1.00.06; if you have an earlier version of Þrmware and experience problems
running SPMA, contact Cabletron Systems Global Support Center for upgrade
information.
Year 2000 Compliance
Previous users of SPMA will note a few display changes related to Year 2000
compliance. All SPMA applications now have the ability to display a four-digit
year value where this information is available. For example, the Stand-alone
Launcher window Ð which uses your workstationÕs system time value to display
the time and date of the last contact change Ð will now display these date values
with eight digits (05/31/1998) instead of six (05/31/98).
Please keep in mind, however, that SPMAÕs ability to display a four-digit year
value in device-speciÞc windows Ð such as the Device Status window available
from the Hub View or the Bridge View Ð is dependent on the ÞrmwareÕs ability to
provide a four-digit value. Not all Þrmware versions support this ability; contact
Cabletron SystemsÕ Global Call Center for information speciÞc to your device
Þrmware.
NOTE
As a general rule, Þrmware versions for new products are liable to change rapidly; contact
the Cabletron Systems Global Support for upgrade information for the latest customer
release of Þrmware.

Introduction to SPMA for the SEHI100TX-22
1-8 SEHI100TX Firmware

2-1
Chapter 2
Using the SEHI100TX HubView
Navigating through the HubView, monitoring hub performance; managing the hub
The heart of SPECTRUM Portable Management Applications (SPMA) for the
SEHI100TX is the Hub View, a graphical interface that gives you access to many of
the functions that provide control over the device.
Using the HubView
There are two ways to open the Hub View: if you are working within a network
management system, you can select the Hub View option from the icon menu;
speciÞc directions for creating a SEHI100TX icon and accessing the icon menu can
be found in the appropriate Installing and Using SPECTRUM for... guide. If you
are running the SEHI100TX module in a stand-alone mode, type the following at
the command line:
spmarun hubstack <IP address> <community name>
The community name you use to start the module must have at least Read access;
for full management functionality, you should use a community name that
provides Read/Write or Superuser access. For more information on community
names, consult the appropriate Installing and Using SPECTRUM for... guide,
and/or the Community Names chapter in the SPMA Tools Guide.
NOTE The spmarun script invoked Þrst in the above command temporarily sets the environment
variables SPMA needs to operate; be sure to use this command any time you launch an
application from the command line. This script is automatically invoked when you launch
an application from the icon menu or from within the Hub View.
If there is a hostname mapped to your SEHI100TXÕs IP address, you can use <hostname>
in place of <IP address> to launch the Hub View. Please note, however, that the hostname
is not the same as the device name which can be assigned via Local Management and/or
SPMA; you cannot use the device name in place of the IP address.

Using the SEHI100TX Hub View
2-2 Using the Hub View
NavigatingThrough the HubView
Within the Hub View (Figure 2-1), you can click mouse buttons in different areas
of the window to access various menus and initiate certain management tasks.
The following sections describe the information displayed in the Hub View Front
Panel and how to use the mouse in the Hub View Ports Display.
Figure 2-1. The SEHI100TX Hub View
HubView Front Panel
In addition to the graphical display of the modules, the Hub View gives you
device level summary information. The following Front Panel information
appears below the port display in the Hub View:
Contact Status is a color code that shows the status of the connection between
SPMA and the device:
¥ Green means a valid connection.
¥ Blue means that SPMA is trying to reach the device but doesnÕt yet know if the
connection will be successful.
¥ Red means that SPMA is unable to contact or has lost contact with the device.
Front Panel
Device summary information

Using the Hub View 2-3
Using the SEHI100TX Hub View
Uptime
The time that the device has been running without interruption. The counter
resets to 0 days 00:00:00 (HH:MM:SS) when one of the following occurs:
¥ Power to the device is cycled.
¥ The device is reset manually.
Date andTime
The date and time are taken from the deviceÕs internal clock. You can set the
device date and time using the Device Status window; refer to page 2-10 for
details.
Device Name
A text Þeld that you can use to help identify the device. You can edit the device
name using the Device Status window; refer to page 2-10 for details.
Location
A text Þeld that you can use to help identify the device. You can edit the device
location using the Device Status window; refer to page 2-10 for details.
IP Address
The deviceÕs Internet Protocol address. You cannot change the SEHI100TXÕs IP
address from SPMA.
MAC Address
The deviceÕs factory-set hardware address. The MAC address cannot be changed.
NOTE If you have assigned a device name or location that contains more than 18 characters, only
the last 18 will be displayed in the Hub View. Check the Device Status window for the
complete name and/or location, if necessary.

Using the SEHI100TX Hub View
2-4 Using the Hub View
Clicking on the Device button displays the Device menu, Figure 2-2.
Figure 2-2. SEHI100TX Hub View Device Menu
The Device menu lets you perform the following:
¥ Open the Device Status window
¥ Open the Repeater Status window
¥ Open the Polling Intervals window
¥ Open the Statistics windows
¥ Create device-level Pie Charts and Graphs or Meters
¥ Change the Port Display Form
¥ Launch the Link/Seg Traps application
¥ Launch the Redundancy application
NOTE Graphing capabilities are provided by an application that is included in HP Network
Node Manager and IBM NetView; therefore, graphs are only available when SPMA is
run in conjunction with one of these network management platforms. If you are running
SPMA in a stand-alone mode or in conjunction with SunNet Manager or Solstice
Enterprise Manager, no graphing options will be displayed on buttons or menus. Note
that the screens displayed in this guide will include the graph-related options where they
are available; please disregard these references if they do not apply.

Using the Hub View 2-5
Using the SEHI100TX Hub View
Note that the Device menu does not provide access to every application which is
available to the SEHI100TX; some information is only available from the Module
or Port menus, and several applications can only be accessed either from the icon
menu (if you are running under a network management platform) or from the
command line (if you are running in stand-alone mode). See Chapter 1,
Introduction to SPMA for the SEHI100TX-22, for a complete list of applications
available to the SEHI100TX and how to access each one.
If you need to call CabletronÕs Global Support about a problem with the Hub
View application, youÕll need the information provided in the Info window
(Figure 2-3):
Figure 2-3. The Hub Information Window
Clicking mouse button 1 on the Quit button closes all Hub View application
windows; any open applications which can also be accessed from the command
line or from the icon menu will remain open.
Using the Mouse in the HubView Ports Display
Each device in your SEHI100TX-managed HUBStack will have its own ports
display in the Hub View; you can access the available ports displays by using the
scroll bar located on the right side of the Hub View Ports Display window, as
illustrated in Figure 2-4. The illustration below also indicates how to use the
mouse to access the Module and Port menus and functions.
SPMA for the SEHI100TX
application version
SEHI100TX firmware revision,
firmware boot prom version, and
hardware version

Using the SEHI100TX Hub View
2-6 Using the Hub View
Figure 2-4. Mousing Around The Ports Display
ModuleType
Displays the type of module,
or device, whose ports are
currently being displayed in
the Ports Display.
Module Index
Indicates the module’s position in
the SEHI100TX-managed stack;the
SEHI100TX itself is always #1
(regardless of its actual location in
the stack).Click mouse button 1 to
open the Module Status window;
click mouse button 3 to display the
Module menu.
Port Index
Click mouse button 3 to
display the Port menu.
Port Status
ThePort Statusdisplaychanges
with the type of port display
format selected.Statistical
selections display values in a
statistic/second format.Load
displays traffic as a percentage
of theoretical maximum
capacity.PortType displays port
status (ON, OFF, NLK, etc.).
Click mouse button 1 to toggle
the port between enabled and
disabled;click mouse button 3
to display the Port menu.
Scroll Bar
Use the scroll bar to
rotate through the Ports
Display for each hub in
the SEHI100TX-
managed stack.
Port Display Form
Using the Module or Device
menus, you can change the port
display form shown in the Port
Status boxes to any one of the
following:
- Load (% of theoretical maximum)
- Traffic (Pkts/sec)
- Collisions (Colls/sec)
- Errors (Errors/sec, total or
by type)
- Frame Sizes (% of total packets)
- Port Type (Admin/Link Status,
Admin Status, or Active Ports)