HP J3108A Installation Manual

HP AdvanceStack Switch
FDDI Module

Installation Guide

© 1996 Hewlett-Packard Company.
All Rights Re served

Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under
the copyr ight laws.

Publ ication Number

J3108-90002
Edition 1
September 1996

Disclaimer

The information contained in this document is subject to
change wi th out notice .

HEWLETT-PACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liabl e for er rors con tained her ei n or fo r inc ide n t al or
conseq uential damages in connection with the furnishing,
perfor mance, or use of this material.

Applicable Produ ct

HP J3108A

Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett -Pa ckard.

Warran ty

See the warranty card included with the product.
A copy of the specific warranty terms applicable to your Hewlett-

Packard pr oduct and replace ment parts can be obtaine d from your
HP sales and service office or HP-authorized reseller.

Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5551
Rosevil le, California 95747-5551

http://www.hp.com/go/network_city

HP Customer Support Services
How to get the latest software/agent firmware

You can download a compressed file ( j3100a.exe) containing the latest
version of the HP Switch 2000 software, proprietary MIB, and a software
download utility file (update.exe) from the HP BBS, HP FTP Library Service,
CompuServe, and the World Wide Web. After you download the file, extract
the file by typing

[Enter].

HP BBS

Set your modem to N-8-1, set speed up to 14400 bps, and with your
telecommunication program (e.g., Windows Terminal) dial [phone] to
get the latest software for your HP networking product.

HP FTP Library Service

1) FTP to Internet IP Address ftp ftp.hp.com

2) Log in as anonymous and press [Enter] at the password prompt.

3) Enter bin to set the transfer type to binary.

4) Enter cd /pub/networking/software

5) Enter get

CompuServe

1) Login to CompuServe.

2) Go to the “hp” service.

3) Select “HP Systems, Disks, Tapes, etc”.

4) Select “Networking Products” library.

5) Download the compressed file named J3100.exe, and then quit.

filename

filename

/x and pressing [Enter]. For example: j3100a.exe /x

to transfer the file to your computer, then quit.

World Wide Web

http://www.hp.com/go/network_city
Select the Support section, then ‘‘Software Downloads and Patches’’.
Download the file you need and extract it by typing:

Do you have questions about designing your expanding network? From this
web site, you can also download the Designing HP AdvanceStack
Workgroup Networks Guide which addresses capacity planning, or dial
1-800-752-0900 to receive a copy through the mail.

!

(over for more services)

Obtain the latest console code (j3100a.exe) from:
HP FTP Library: ftp ftp.hp.com
World Wide Web: http://www.hp.com/go/network_city
HP BBS: [phone]
(over)

filename

/x

HP FIRST Fax Retrieval Service

HP FIRST is an automated fax retrieval service that is available 24 hours a
day, seven days a week. HP FIRST provides information on the following
topics:

Product information
Troubleshooting instructions
Technical reviews and articles
Configuration information

To access HP FIRST, dial one of the following phone numbers:

Location Phone Number

U.S. and Canada Only Dial 1 [phone] with

your fax machine or
touch-tone phone and
press 1.

Outside the U.S. and
Canada

Dial 1 [phone] from
your fax machine and
press 9.

To receive a list of currently available documents, enter document number

19941. The information you requested will be sent to you by return fax.

Additional HP Support Services

In addition to the above services, you can purchase various HP telephone
support services which provide you expert HP technical assistance:

Network Phone-In Support provides you support at an hourly rate. In the
USA, call 1-800-790-5544. In other countries, please contact your local HP
Response Center to see if this service is available in your country.

HP SupportPack Comprehensive Network Support provides complete
problem resolution for medium to large interconnected local and wide
area networks. Contact your HP Authorized Reseller or the nearest HP
Sales and Support Office for more information.

CompuServe: Go to the hp service

Select HP Systems, etc
Select Networking Products
Download the file named J3100.exe

Network Phone-In
Support (Hourly): 1-800-790-5544

HP AdvanceStack Switch 2000 FDDI Module

HP Advanc eStack Swit ch 20 00
FDDI Module

At A Glance

The HP AdvanceStack 1-Port FDDI Module (HP J3108A) is an optional compo­nent that you can add to an HP AdvanceStack Switch 2000 to provide either
a Dual-Attach (DAS) or a Singl e-Attach (SAS) connection to an FDDI ring. You
can also use an optical bypass switch (optional) to connect to the ring.

Extractor Handle Extrac tor HandleSwitch Co nnector

Features: The HP AdvanceStack FDDI Module provides a 100 Mbit/s fiber­optic port for connecti ng the HP AdvanceStack Switc h 2000 to an FDDI ring.
The module can operate in any one of the following ways:

■ As a single dual-attach station (DAS)

■ As a single-attach station connected to one or two FDDI Module single-

attach stations (SAS)

■ As a single-attach station connected to a concent rator

■ As a dual-homed device

Optical By pas s
Connector

Port Status LEDs

iii

HP AdvanceStack Switch 2000 FDDI Module

Operating Requirements and Limitations:

■ You must use multimode fiber-optic cable with the FDDI Module.

■ The FDDI Module is designated as a high-power module. Due to power

requirements, the Switch 2000 can support no more than two “high­power” modules. (That is, the Switch 2000 supports up to six installed
modules, but only two of the modules can be “high-power” modules.)

Caution The HP J3108A FDDI Module is designated as a module with “high

power” requirements. Installing more than two “high-power” modules
in the Switch 2000 may ex ceed th e switch’ s po wer supp ly ca pabili ties
and is not supported.

Software Prereq uisite: To use the FDDI Module in the Switch 2000, the

switch must be running software version A.02.01 or later. (Refer to step 1

under “Overview” on page 1.)

Standards A dherence: The J3108A FDDI Module complies with the
following standards:

■ FDDI:

• PMD - ANSI X3.166 - 1990; ISO 9314-3:1990

• PHY - ANSI X3.148 - 1988; ISO 9314-1:198 9

• MAC - ANSI X3.139 - 1987; ISO 9314-2:1989

• SMT - ANSI X3.229-1994; ISO 9314-6:199x (Version 7.3)

■ RFC 1512 (FDDI MIB)

■ RFC 1213 (MIB-2)

■ RFC 1573 (Interface Evolution MIB)

■ RFC 1757 (RMON MIB, including the following four groups)

• Etherne t Statistics group

• History Control group

• Eth erne t Hist o r y gro u p

•Alarm group

■ RFC 1042 (FDDI/Ethernet header translation)

■ RFC 791 (IP fragmentation)

iv

Contents

HP AdvanceStack Switch 2000

FDDI Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

At A Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Operating Requirements and Limitations: . . . . . . . . . . . . . . . . . . . . iv

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Downloading Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Software Sources and Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

How To Download the OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Switch-to-Switch Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installing the Module in an Unused Slot . . . . . . . . . . . . . . . . . . . . . . . . . 7

Customizing the Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Rebooting the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Removing or Replacin g a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting the Net wo rk Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Dual-Attachment Station (DAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Single-Attachment Station (SAS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Dual-Homed Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Standalone FDDI Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Optical Bypass Switch Connection (Optional) . . . . . . . . . . . . . . . . . . . 21

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

FDDI Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SNAP-Encapsulated Packet Conversion Across the FDDI Ring . . . . . 25

FDDI Module OS Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Cables and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Regulatory Statem ents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

v

Overview

Overview

You can install an FDDI Module into any of the Switch 2000’s six module slots .

The following steps provide an overview. The actual in stallation procedure
begins on page 3.

1. For a first-time installation of an FDDI Module, update the Switch 2000
operating system (OS) to a version compatible with the FDDI Module by
using the software provided on the disk shipped with the module.
(Updating the OS software for either a first-time installation or for an
existing installation is des cribed under “Downloading Software” on page

3.)

2. Install the FDDI Module in a Switch 2000 slot.

3. Reboot the Switch.

4. Use the Switc h 2000 console interface to cust omiz e the c onfiguratio n for
the FDDI port (unless the default port configuration— page 13—is
satisfactory for your network application). For information on using the
console interface, refer to the Console User’s Guide shipped with your

Switch 2000.

5. If you customized the configuration for the FDDI port (step 4), reboot the
switch by using the Reboot Switch option in the Main Menu of the
Switch 2000 consol e in terface.

1

Overview

Caution The HP J3108A FDDI Module is designated as a module requiring “high

power”. Installing more than two high-power modules in the HP
J3100A Switch 2000 may exceed the switch’s power capabilities and
is not supported.

If necessa ry, you can “hot- swap” one FDDI Modul e for another; that is, replac e
one module with another of the same type without rebooting the switch.
However, if you replace one module type with a differ ent module type ( such
as replacing an Ethernet Module with an FDDI Module), you must reboot the
switch after making the replacement.

2

Downloading Software

Downloading Software

Use this procedure in either of the following cases:

■ You are installing an FDDI Module in your Switch 2000 for the first time.

■ An FDDI Module is already installed in the Switch 2000 and you now want

to upgrade the software to a newer version.

Software Sources and Content

Fir st-T ime FDDI Mod ule Installation: If you are installing the FDDI
Module in your Switch 2000 for the first time, use the software provided on
the disk you received with the module.

Upgrading a Previous FDDI Module Installation: If you are upgrading the
software for an existing FDDI Module installation, you can use software that
is either provid ed on a current disk or obtained el ectronically in a compress ed,
self-ex tracting f ile named j3100a.exe that you can download from Hewlett-

Packard’s world wide web or other electronic sources. (Refer to “HP
Customer Support Services” on the card included in the front of this manual.)

Both the dis k and the self-extr acting ( j3100a.exe ) file contain one or more
of the following files:

■ The switch update utility, named update.exe , and a readme.txt file

containing instructions on how to use the switch update utility, plus other
information. (This is a PC-based utility that you can run from DOS or from
a DOS window to download the switch software from a PC directory. This
utility requires an RS-232 serial connection to the Switch 2000 console
port.)

■ The proprietary MIB files fo r the Swit ch 2000 (filename.mib)

■ Two OS file s:

filename.swi

filename.fdd

where filename will be the same for both files; for example:

A_02_01.swi OS for the Switch 2000 ch ass is and all

Switch 2000 modules that operate with
version A.02.01 or earlier software.

A_02_01.fdd OS for the FDDI Module.

3

Downloading Software

Note The earliest version of OS software files supporting the FDDI Module in the

Switch 2000 is A_02_01.swi and A_02_01.fdd. The version numbers of
the FDDI Module OS software and the Switch 2000 OS software should match.

For more on this topic, refer to “FDDI Module OS Version” on page 25.

Observe the foll owing when downloading the OS software to the Switch 2000 :

■ filename.swi and filename.fdd must be in the same d i rector y

■ filename must be the same for both files (that is, the files must be

the.swi and.fdd file pair from the disk or from the self-extracting file
j3100a.exe mentioned on page 5.

For the above reasons, avo id p lacing the filename.swi and
filename.fdd in separate directories, and avoid renaming them.

Note The latest version of the Switch 2000 OS supports all Switch 2000 Modules

currently available. If you are installing more than one type of Switch 2000
module and/or if it is nec essary to download a new version of the Switch 2000
OS, use the latest version available. To support the FDDI Module, use OS
version A.02. 01 or later. The Switch 2000 Ethernet and 100VG Modules operate
with any version of Switch 2000 OS software. For more on software compat­ibility, see the readme.txt file included on the disk and in the compressed,
self-ext racting j3100a.exe fi le from the electronic sources mentioned on
page 3.

4

Downloading Software

How To Download the OS

Use this procedure if you need to download a new OS version to your Switch
2000 and the FDDI Module. The procedure describes how to use a personal
computer (PC) to download the OS. (If you are using a UNIX workstation,
refer to the Note on page 6.) The files used in this procedure are described

under “Software Sources and Content” on page 3.

1. Do one of the following:

• If the source of you OS files is the disk shipped with the FDDI Module,

copy the files from the disk into the DOS directory you will use for
downloading to the switch. Then go to step 2.

• If the source of yo ur OS f iles i s the self-ex trac ting j3100a.exe file

from an electronic source (s ee “Softw ar e Sour ces and Content” on
page 3):
i. Copy the j3100.exe file into the DOS directory you will use

for downloading to the switch. (If you are using a UNIX worksta­tion, refer to the Note on page 6.)

ii. Run the file to decompress and extract its contents.

2. Download the software upgrade by using one of the following methods:

• TFT P download using a TFTP ser ver and the Download OS

option in the Switch 2000 console interface: This is the recom­mended download method if you have TFTP server acces s to the
Switch 2000. Refer to the inst ructions in appendix A, “Downloading
an Operating Syste m”, in the Cons ole U ser’s Guid e you received w ith

your Switch 2000. For this option, use the form

filename.swi

for the Remote File Name parameter. (The filename.fdd file
will automatically be used if an FDDI Module is already installed in
the Switch 2000.)

• Switch update utility: Refer to the instructions in the

readme.txt file provided with the update utility.

3. If you are performing a first-time installa tion of an FDDI Module, go on to
“Installing the Module in an Unused Slot” on page 7.

5

Downloading Software

Note To perform a TFTP download from a UNIX system, store the uncompressed

filename.swi and filename.fdd in the UNIX TFTP directory, then
perform the TFTP download as descri bed in step 2, above . If you do not have
access to a DOS system in order to execute the j3100a.exe file, use the
world wide web or BBS services described on the card at the front of this
manual to download uncompressed versions of filename.swi and
filename.fdd. If your TFTP server is a UNIX system, ensure that the case
(upper or lower) that you specify for the filename in the Switch 2000 Download
OS screen is the same case as the OS filenames in the TFTP server.

Switch-to-Switch Download

If you have two or more Switch 2000s networked together, you can download
the OS software fro m one switch to another by using the Download OS feature
in the Switch 2000 console interface. To do so:

1. Go to the Download OS screen in the switch to receive the download

2. Enter the IP or IPX address of the remote switch containing the OS you
want to download

3. Enter “OS” for the Remote File Name.

4. Execute the download.

For more information on the Download OS feature, refer to appendix A,
“Downloading an Operating System” in the Console User’s Guide you receiv ed

with your Switch 2000.

6

Installing the Module in an Unused Slot

Installing the Module in an Unused Slot

Caution Static electr icity can severel y damage the sensitive el ectronic components on

the FDDI Module. When handling and installing the module in your switch,
follow these procedures to avoid damage from static electricity:

■ Handle the module by its edges and avoid touching the components and

the circuitry on the board.

■ Equalize any static charge differ en ce b etween your body and the switch

by wearing a grounding wrist strap and attaching it to the switch’s metal
body, or by frequently touching the switch’s metal body while you are
installing the module.

For proper cooling and reduction of electromagnetic emissions, ensure that
slot covers (provided with your Switch 2000) are installed on unused ports.

1. Slide out the blank LED label strip from the label slot corresponding to
the physical slot in which you will install the module. The LED label strips
have a small loop on the left end. Use your fingernail or a small implement
to catch the loop and slide the label to the left and out of the label slot.
Then insert the LED label strip you received with the FDDI Module. For
example, if you are goin g to in stall the module in slot ‘‘A’’, you would
replace the blank LED lab el strip in label slot ‘‘A’’ with the new LED label
strip for the FDDI Module. (Refer to Figure 1, below.)

Save the blank LED label strip in case you ever want to remove the module
and its LED label strip.

2. Using a Torx T-10 or flat-blad e screw d river, unscrew the screws in the
cover plate over th e slot you want to use, and remove the c over. Store the
cover plate with i ts screws for p ossible future us e. For example, to i nstall
a module in slot A, see figure 1 on the next page.

7

Installing the Module in an Unused Slot

Replace the blank LED label
strip with the FDDI label strip

Loosen These Two Screws

LED Label Sl ot “A”

Module Slot “A”

Module S lot “B ”

Figure 1. Remove the Cover Plate from an Unused Switch Port

3. Holding the module by its edges—taking care not to touch the metal
connectors—position the module in front of an open slot on the switch
by alignin g the edges of the module with the smal l grooves near the bottom
of the slot, as shown in figure 2.

Figure 2. Extractor Handles in the Lowered (Open) Position

8

Module
Groove

Extractor Handles

Installing the Module in an Unused Slot

4. Make sure the extractor handles are in the open position (rotated away
from the face plate), then push the module into the slot until you feel the
extractor handl es conta ct the swi tch chas sis. ( The handl es move sl ightl y
upward when they contact the chassis .)

5. Seat the module in the slot by simultaneously raising both extractor
handles to their full vertical position, and pressing them against the
module face plate. Note that the handles will remain a little loose until
you complete step 6.

Raise Extractor Handles a nd Tighte n Screws

Figure 3. Extractor Handles in the Raised (Closed) Position

9

Installing the Module in an Unused Slot

6. Tighten the screw in each handle by using a flat-blade or Torx T-10
screwdriver. Be careful not to overtighten the screws.

If the switch is powered-on during module installation, the LEDs will
behave as described below. If you have not already done so, install the

LED label strip as described in step 1 on page 7.

Self-tes t LED Slot Fau lt LED

Figure 4. Self-Test and (Slot) Fault LEDs on the Switch 2000

10

Slot and Self-Test LED Behavior

LED Pattern

Slot Fau lt ( for t he s lot

in which you are

installing the module)

1 FLASHING RAPIDLY if the module is not properly seated
2 ON for approximately 10 seconds after the module has

been properly seated

3 OFF during normal switching operation
4 Flashing slowly if there is a self-test failure.

Note: If the Fault LED for the mod ule slot continues flashing
rapidly, the module may not be completely seated in the slot.
Ensure that the handles on the module are fully in the

“closed” position and the screw s in the handles are
tightened.

If the modul e slot Fau lt LED cont in ues flash in g, unsc rew the
screws, open t he hand les, re move the module , and r e-insta ll
it. If the Faul t LED con tinu es fl ashing, remov e the module and
contact your HP-authorized LAN dealer or HP networki ng
support representative.

Installing the Module in an Unused Slot

Check th e swi t ch e vent l og t hroug h th e co nsol e int er face
for more information.

If a module is not installed properly, and the module slot Faul t
LED cont inues rapi d flashin g, other m odules in the switch will
continue to forwar d packets normally, but ot her switch
functions will be suspended until the module is removed or
properly in stalled.

Self-test

(for the Switch 2000)

1 ON for up to 40 seconds after the module has

been properly seated.
2 OFF during normal switching operation.
3 FLASHING simultaneously with slot Fault LED if the slot

has fai led self-test. Check the event log.

7. Connect the app ropriat e FDDI c ables to in sert the switch int o your FDDI

ring. (If ne cess ary, refer to “Connecting the Network Cables” on page 17
for information on connection options.)

Note There are some specific sug gestions that you should observe when

connecting your switch to other networking devices. See the Connec tiv ity
Quick Reference, included with the module, for connection information.

11

Installing the Module in an Unused Slot

8. After you connect the switch to the FDDI ring, check the port LEDs for
the newly-i nstalle d FDDI Module to ensure th at th e modul e is enabled. If

you have not alrea d y don e so , install the LED lab el stri p for the FD D I
Module, as described in step 1 on page 7.

For example, if you inst alled the F DDI Module in slot A, the p ort LEDs for
the module would be found in the location shown below:

Port LEDs for Slot A

Figure 5. Locating the Port LEDs for an FDDI Module in Slot A

The “port-enabled'' LED (1) will be lit if the FDDI port is enabled. The
transmit ( Tx) and/or recei ve (Rx) LEDs will flas h when traffic i s detected
on the port.

Transmit LED

Port-enabled LED

Receive LED

Tx

1

Rx

Figure 6. Port LEDs for the Switch 2000 FDDI Module

9. Customize the port co n f igu ration, if necessary. (See “Customizing the
Port Configuration” below.)

10. Reboot the switch, since thi s is a new module bein g installed. (See
“Rebooting the Switch”, below, for more information on when the switch
must be rebooted.)

12

Installing the Module in an Unused Slot

Customizing th e Port Configuratio n

If the slot in which you install ed the FDDI Module was empty the last ti me the
switch was either rebooted, reset, or power-cycled, then the module, after it
is installed, will use preconfigured default parameter values that will work for
most networks.

The FDDI port default configuration is:

■ Enabled : Yes

■ Mode: IP Fragmentation: On

■ Trunk (port trunking): None

(Description s of the above p aramete rs are includ ed in the onl ine help fo r the
Switch 2000 consol e user interface screens in which the parameters occur.)

If necessary, configu re the FDDI port(s) in the switch by using the switch
console interface. (For information on how to use the switch console inter­face, see the Console User’s Guide shipped with the Switch 2000, and the
online Help provided in the console interface itself.) If the default port
configuratio n shown above is correct for your network, then there is no need
for further configuration.

Rebooting th e Swit ch

You can reboot the switch by using the Reboot Switch command in the console
Main menu, by pressing the r ecessed Reset button located to the r ight o f th e
Power LED on the Switch 2000, or by cycling the power.

Power LED

Figure 7. Location of the Reset Button

Reset Butto n

13

Installing the Module in an Unused Slot

Generally, you only need to reboot the switch when it needs to recognize a
change in its hardware or software (console) configuration. Some circum­stances under which you will need to reboot the switch are:

■ You add new modules or move modules to unused slots

■ You install a module in a slot that was previously occupied by a different

type of module (for example, installing an FDDI Module in a slot that was
previously used for an Ethernet module)

■ You change certa in switch configurati on parameters through the conso le

interface—in thi s case, the console provides messages indicating when
the switch must be rebooted for the configuration change to be activated

You do not need to reboot the switch if:

■ You are replacing an FDDI Module with the same type of module

■ You are moving a module to a slot that was previously occupied by the

same type of module (and no reboot has occurred since the previous
module was removed)

14

Removing or Replacing a Module

Removing or Replacing a Module

You can perform this procedure while the Switch 2000 is running.

Disengage These Two Screws

Figure 8. Removing the Module

1. Remove any network cables from the ports on the module.

2. Disengage the module’s extractor handle screws from the switch chassis.

3. Simultaneously rotate both extractor handles downward and pull the
module toward you until it releases from th e slot and the Fault and status
LEDs for that slot are off.

Note During removal (or installation) the module and switch connectors will

momentarily be only partially connected. The Fault LED for the slot flashes
rapidly to indicate this state until the module is removed or properly installed.
(The other modules in the switch will continue to forward packets normally,
but other switch functions will be suspended until the module is removed or
properly installed.)

15

Removing or Replacing a Module

4. Slide the module out of the slot.

5. Do one of the following:

6. If you did either of the following in step 5, above:

• If you will be installing another module in the slot, go to “Installing

the Module in an Unused Slot” on page 7.

Make sure that you install the proper LED label strip for the new
module you are installing, as described in step 1 on page 7. If you

do not install the corr ect L ED lab el strip for the module you have
installed, you will not be able to correctly interpret the LED display
for that module.

• If you will not immediately install another module in the slot (that is,

you leave it empty), then re-attach a slot cover plate o ver the empty
slot opening and replace the LED label stri p for that slot with a blank
LED strip saved previo usly.

• Removed a module and did not replace it

• Replaced one module with another, different type of module (for

example, replaced an Ethernet module with an FDDI Module)

then reboot the switch as described under “Rebooting the Switch” on page

13. (It is not necessary to reboot the switch if you replace one module with
another one of the same type.)

Caution For proper cooling and reduction of electromagnetic emissions, ensure that

a slot cover (provid ed with your Switch 2000) is installed on any unus ed port.

16

Connecting the Network Cables

Connectin g the N etwor k Cabl es

The FDDI Module uses a dual-port FDDI interface, w ith two FSD (fixed shroud
duplex) connectors labeled MIC A and MIC B (media interface connector).

■ Either MIC A or MIC B is used to attach the sw itch to a single attach station

(SAS)

■ Both MIC A and MIC B are used in one of the following ways:

• To attach the switch as a dual attach station (DAS)

• To attach the switch to two single attach stations

• To set up the switch as a dual-homed device

Avoiding Ring Wrapping. On a DAS, you can use an (optional) optical
bypass switch (also known as an “FDDI dual-switch module”). A bypass
switch prevents the FDDI ring from “wrapping” if the switch connected as a
DAS loses power or if the FDDI port becomes disabled. Another technique
that eliminates the need for a bypass switch is dual homing, whic h isolates a
cable or conc entrator fa ilure s o tha t it will not break th e swit ch’s con nection
to the FDDI ring. An example of ring wrapping is illustrated on page 24.

Note If the FDDI cable is disconnected or faulty, the bypass will not activate and

ring wrapping will not be prevented.

Ring wrapping is discussed further in the table on page 22.

17

Connecting the Network Cables

......

Dual-Attachment Station (DAS)

Figure 9. Example of a DAS Configuration

To connect t he FDDI interface as a DAS without a bypass switch, co nnect MIC
A of the FDDI Module to MIC B of the adjacent DAS on the ring, and connect
MIC B of the FDDI Module to MIC A of another (or the same) adjacent DAS
on the ring.)Single-Attachment Station (SAS)

Single-Attachment St ation (SAS)

Adjacen t DAS Adjac ent DASSwitch 2000 with

FDDI Module

"

!

!

"

!

"

FDDI
Concentrator
(shown as a DAS

device)

FDDI

Module

--

Connect Either MIC A or MIC
B to any M Po rt on the
Concentrator)

-)#" -)#!

Figure 10. Example of an SAS Configuration

To connect the FDDI Module as an SAS, connect either MIC A or MIC B to an
M port on the FDDI concen trator in the FDDI r ing. For informati on on cables,

refer to “Cables and Connectors” on page 28.

18

Connecting the Network Cables

To Port A of
Adjacent
DAS

To Port B of
Adjacent
DAS

Figure 11. Connecting a DAS without a Bypass Switch

Optionally, you can attach a byp ass switch between the adjacent DAS and the

FDDI Module to prevent ring wrapp ing. See “Optical Bypass Swi t ch
Connection (Optional)” on page 21 for the instructions and an illustration of
the required conn ectio ns.

19

Connecting the Network Cables

Dual-Homed St ation

Dual homing is a double or redundant SAS connection providing a backup link
to an FDDI concentrator on the ring, either th e same concentr ator or a
different concen trator, so that o nly one link is ac tive at a time. In the ex ample
configuratio n shown below, traffic i s sent and received over MIC B of the FDDI
Module during normal operation. MIC A is used only if the cable or
concentrator attached to MIC B fails.

!

-

"!

--

-)#" -)#!

---

--

FDDI Module
Installed in Switch
2000

"

Backup FDDI
Concentrator

Primary FDDI
Concentrator

Figure 12. Example of a Dual-Homed Station Configuration

20

Connecting the Network Cables

Stan dalone FD D I N etworking

Standalone FDDI networking provides either one DAS connection or two SAS
connections without the need for an FDDI backbone. File servers are good
candidates for standalone networking in situations where they can be
removed from an Ethernet segment and attached directly to the FDDI Module.
Doing so can decrease t ra ffic b etween Ethernet segments and allow t he
server(s) to use a full 100Mbit/s bandwidth in which to serve incoming
segments.

PC

Server

Unix
NFS

Server

Figure 13. Example of FDDI Standalone Networking with Two SAS Connections

Optical Bypa ss Switch Conn ection (Option a l)

If your FDDI connecti on in clude s an opti cal bypass switc h, us e the fol lowing
steps to connect the FDDI Module as a DAS to a bypass switch on the FDDI
ring.

1. Connect the bypass switch to the FDDI ring by plugging the MIC A and
MIC B connectors from the FDDI ring into the corresponding A and B
ports on the bypass switch. (The cable c onnectors should be keyed so t hat
they fit into the correct A and B jacks.) For details on connecting to the
ring, refer to the instructions provided with the bypass switch.

2. Attach the cable with the key labeled “A” from the bypass switch to MIC

A of the FDDI Module in the Switch 2000. Attach the cable w ith th e key
labeled “B” from the switch to MIC B of the FDDI Module. (The cable
connectors should be keyed so that they fit into the correct A and B
connectors.) Se e f igure 14.

3. Insert the DIN connector on the cable from the bypass switch into the
“Optical Bypass” jack on the FDDI Module. See figure 14.

21

Connecting the Network Cables

Optical
Bypass
Connecto

r

!"!

Connect t o Port A of
Adjacent DA S

"

!

Figure 14. Example of Connecting a Bypass Switch

Connect to Port B of
Adjac ent DAS

22

Troubleshooting

Troubleshooting

For general information about troubleshooting pr oblems us ing any interface
card in the Switch 2000, refer to the instal lation manual you rece ived with the
switch .

To verify whether the FDDI Module is properly installed and the slot and
module hardware is functioning properly, check the Slot Fault and Self-test

LEDs on the front of the Switch 2000. (Refer to “Slot and Self-Test LED
Behavior” on page 11.) The following troubleshooting information addresses
problems unique to FDDI operation.

FDDI Status LEDs

FDDI Status LEDs

Figure 15. FDDI Status LEDs on the FDDI Module

This subsection describes the operation of the status LEDs on a properly
installed and operating FDDI Module.

23

Troubleshooting

LED Meaning

Thru Green when the primary path enters at A and exits at B; and the

secondar y path ente rs at B and exi ts at A. (Nei ther MIC is in a wrap
state).

Wrap A
or
Wrap B

Sig A
Sig B

Ring Op Green if the switch is inserted and operating in an FDDI ring and

Bypass Green when the switc h has power, but the att ached bypass sw itch

Net Fail Orange when the interface f ails self-test or is not oper ating on an

Green when a break has occurred in the ring. The switch is
connected to the ring by only the MIC whose Wrap LED is lit.
Wrapping can occur when:

The MIC for which Wrap is
when th e cable connection to the unl it MIC is inte rrupted.

A dual attachment station (DAS) attached to the MIC for which
Wrap is

Refer to figure 16, below, for an illustration of Wrap and Thru
operation.

Green when light signals are detected from the attached station
(A or B).

is in either Thru or Wr ap m ode. (Wrap is illustrated in figure 16
below.)

is causi ng the FDDI ring to
the Swit ch 2000 is booting and when th e FDDI circuit is disabled .
This LED i s not lit when th e FDDI circuit is enabled.

active FDDI r ing. Poss ible cau ses of fail ure incl ude th e switch, the
FDDI Module, the cabling, the attached station, or the optica l
bypass.

not

lit is not functional.

not

lit is not comm unicating, such as

bypass

the Switch 20 00, includi ng when

Figure 16. FDDI “Thru” and “Wrap A” Operation

24

Troubleshooting

SNAP-Enca ps ul a ted Pack et C onversion Acros s the
FDDI Ring

In accordance with the IEE E 802.1 bridging standar d, FDDI SNAP packets are
translated to Eth ernet II packets when brid gin g b etween FDDI and Ethernet
segments. P ackets origi nating on Ethern et wi th SNAP encoding will ar riv e as
Ethernet II packets after traversing the FDDI ring, which may cause
connectivity problems.

Client
Node

Traffic
Generated
as SNAP
Packets...

Switch
1

Switch
2

Server
Node

...is
received as
Ethernet 2
Packets

FDDI Module OS Version

The FDDI Module is shipped with and uses its own OS (operating system)
software. The version number of this software must be the same as the OS
software version be in g used by the Switch 2000. (The earliest version
supporting FDDI operation is A_02_01.) Normally, if you upgrade the Switch
2000 software before installing a new FDDI Module, the module and switch
will be compatible (unless the switch software predates the module software).
If an FDDI Module and supporting software has previously been installed, and
you then upgrade the Switch 2000 software, the FDDI Module software will
automatically be updated as well, and the software version number for the
Switch 2000 and for the FDDI Module should match. If the version numbers
do not match, then faulty FDDI operation may occur.

To determine the current FDDI Module software version:

4. In the Main Menu of the console inter face, select Statistics to display
the Statistics screen .

5. In the Statistic s screen, select Module Description to display the
Module Descriptio n scre en . You will then see a display similar to the
following, in which you can identify the current software (OS) version in
use with the FDDI Module.

25

Troubleshooting

Module O S Version

Figure 17. Example of the Mo dule Description Screen

26

Troubleshooting

To determine the current Switch 2000 software version, do
the following:

1. From the Main menu, select Statistics

2. In the Statistic s screen, select Switch Information

3. You will then see a screen similar to the following, in which you can
identify the curre nt software (OS) version in use with the Switch 2000.

Switch OS Version

Figure 18. Example of the Switch Information S creen

4. Compare the OS Version number of the FDDI Module with the OS Version
number of the Switch 2000. If they match, or if FDDI Module version
number is the same as the Switch 2000 versio n number, then th e FDDI
Module should operate properly with the Switch 2000. Otherwise, you
should obtain the late st version of Switch 2000 software and perform a

software download. (Refer to “Downloading Software” o n page 3.)

27

Cables and Connectors

Cables and Connectors

Cable or Connector HP Part Number

62.5/1 25 micron mul timode fiber- optic cable
with fi xed-sh roud dup lex (FS D) media i nter­face connector (M IC )

FDDI optical bypass switch 506 3-2488
FDDI loo pback hood 5063-2490

Contact your
HP-authorized
LAN dealer

To order these parts, contact your HP-authorized LAN dealer or (in the U.S.A.)
call 1-800-538-8787.

FDDI Optical Bypass DIN Connector Pinout

HP 5063-2488

pin 1

switch positive (5V, 400 mA max)

pin 2
pin 3

switch ground

pin 4
pin 5 bypass detect

Figure 19. FDDI Bypass Mini-DIN Connector Pins

28

pin 6 ground

When pin 5 is attached to pi n 6, the bypass is detected.

Customer Support Serv ices

Customer Support Services

Hewlett-Packard offers support 24 hours a day, seven days a week through
the use of automated electron ic services, including:

■ HP BBS and the World Wide Web

■ Hewlett-Packard FTP Libr ary Service on the Internet

■ CompuServe

■ HP Network Phone-In Support (NPS)

■ HP FIRST Fa x Ret ri eva l Serv i ce

These services are described on the card at the front of this manual.

29

Specifications

Specifications

Physical

Dimensions
Width: 16.5 cm (6.5 in .)

Depth: 25.0 cm (10.0 in.)
Height: 4.3 cm (1.8 in.)
Weight: 0.33 kg (0.7 lbs)

Environmental

Operating temperature: 0°C to 55°C (32°F to 131°)

Relative humidity: 15% to 95% at 40°C (104°F) non-condensing
Maximum altitude: 4.6 km (15,000 feet)

Electromagnetic

Emissions

FCC part 15 Class A
CISPR-22 (1 985) Class A EN55022 (1988) Class A
VCCI Class 1
Complies with Canadian EMC Class A requiremen t s.

Immunity

EN50082-1 (1992)
See the Declara tion of Confor mity in the i nstal latio n guide for the HP J31 00A
AdvanceStack Switch 2000 for more details.

30

Regulat ory Statements

Regulatory Statements

FCC Statement (U.S.A.)

This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide r easonable protection again st harmful interferenc e when
the equipment is oper ated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructi on manual , may cause interfe rence
to radio communications.

This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer­ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

VCCI (Japan)

31

Regulat ory Statements

European Community

This equipment complies with CISPR22/EN55022 Cl ass A.

Note This is a class A product. In a domestic environment this product may cause

radio interference in which case the user may be required to take adequate
measures.

Declaration of Conf or mity

This product is designed for operation with the J31 00A HP Advan ceS tack
Switch 2000 and is liste d in the Declar ation of Confor mity for the S witch 2000.

DOC Statement (Canada)

Complies with Canadian EMC Class A requiremen t s.

32