hp advancestack switch fddi modulewhp-aus2.cold.extweb.hp.com/pub/networking/software/j... ·...

HP AdvanceStack SwitchFDDI Module

Installation Guide

Hewlett-Packard Company8000 Foothills Boulevard, m/s 5551

© 1996 Hewlett-Packard Company.

All Rights Reserved

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

Publication Number

J3108-90002Edition 1September 1996

Applicable Product

HP J3108A

Disclaimer

The information contained in this document is subject to change without 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 liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

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

Warranty

See the warranty card included with the product.

A copy of the specific warranty terms applicable to your Hewlett-Packard product and replacement parts can be obtained from your HP sales and service office or HP-authorized reseller.

Roseville, California 95747-5551http://www.hp.com/go/network_city

HP Customer Support ServicesHow to get the latest software/agent firmware

You can download a compressed file ( j3100a.exe) containing the latestversion of the HP Switch 2000 software, proprietary MIB, and a softwaredownload utility file (update.exe) from the HP BBS, HP FTP Library Service,CompuServe, and the World Wide Web. After you download the file, extractthe file by typing filename /x and pressing [Enter]. For example: j3100a.exe /x[Enter].

HP BBS

Set your modem to N-8-1, set speed up to 14400 bps, and with yourtelecommunication program (e.g., Windows Terminal) dial (208) 344-1691 toget 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 filename to transfer the file to your computer, then quit.

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.

World Wide Web

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

Do you have questions about designing your expanding network? From thisweb site, you can also download the Designing HP AdvanceStack

Workgroup Networks Guide which addresses capacity planning, or dial1-800-752-0900 to receive a copy through the mail.

(over for more services)

Perforate

Perfo

rateObtain the latest console code (j3100a.exe) from:

HP FTP Library: ftp ftp.hp.comWorld Wide Web: http://www.hp.com/go/network_cityHP BBS: (208) 344-1691(over)

!

HP FIRST Fax Retrieval Service

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

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 (800) 333-1917 withyour fax machine ortouch-tone phone andpress 1.

Outside the U.S. andCanada

Dial 1 (208) 344-4809 fromyour fax machine andpress 9.

To receive a list of currently available documents, enter document number19941. 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 telephonesupport services which provide you expert HP technical assistance:

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

HP SupportPack Comprehensive Network Support provides completeproblem resolution for medium to large interconnected local and widearea networks. Contact your HP Authorized Reseller or the nearest HPSales and Support Office for more information.

CompuServe: Go to the hp serviceSelect HP Systems, etcSelect Networking ProductsDownload the file named J3100.exe

Network Phone-InSupport (Hourly): 1-800-790-5544

!

HP AdvanceStack Switch 2000 FDDI Module

HP AdvanceStack Switch 2000FDDI Module

At A Glance

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

Features: The HP AdvanceStack FDDI Module provides a 100 Mbit/s fiber-optic port for connecting the HP AdvanceStack Switch 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 concentrator

■ As a dual-homed device

Extractor Handle Extractor HandleSwitch Connector

Optical Bypass 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 “high-power” modules. (That is, the Switch 2000 supports up to six installed modules, but only two of the modules can be “high-power” modules.)

C a u t i o n 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 exceed the switch’s power supply capabilities

and is not supported.

Software Prerequisite: 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 Adherence: 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 9314-1:1989

• 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)

• Ethernet Statistics group

• History Control group

• Ethernet History group

• Alarm group

■ RFC 1042 (FDDI/Ethernet header translation)

■ RFC 791 (IP fragmentation)

iv

Contents

HP AdvanceStack Switch 2000

FDDI Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiiAt A Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiiOperating 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 Replacing a Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting the Network 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 Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 installation 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 described under “Downloading Software” on page 3.)

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

3. Reboot the Switch.

4. Use the Switch 2000 console interface to customize the configuration 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 console interface.

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

2

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

First-Time FDDI Module 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 provided on a current disk or obtained electronically in a compressed, self-extracting file 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 disk and the self-extracting ( 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 for the Switch 2000 (filename.mib)

■ Two OS files:

filename.swi

filename.fdd

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

A_02_01.swi OS for the Switch 2000 chassis and allSwitch 2000 modules that operate withversion A.02.01 or earlier software.

A_02_01.fdd OS for the FDDI Module.

3


N o t e 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 following when downloading the OS software to the Switch 2000:

■ filename.swi and filename.fdd must be in the same directory

■ 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, avoid placing the filename.swi and filename.fdd in separate directories, and avoid renaming them.

N o t e 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 necessary 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 compat-ibility, see the readme.txt file included on the disk and in the compressed, self-extracting j3100a.exe file from the electronic sources mentioned on page 3.

4


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 your OS files is the self-extracting j3100a.exe file from an electronic source (see “Software Sources 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 worksta-tion, 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:

• TFTP download using a TFTP server and the Download OS

option in the Switch 2000 console interface: This is the recom-mended download method if you have TFTP server access to the Switch 2000. Refer to the instructions in appendix A, “Downloading an Operating System”, in the Console User’s Guide you received with 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 installation of an FDDI Module, go on to “Installing the Module in an Unused Slot” on page 7.

5


N o t e 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 described 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 andfilename.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 from 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 received with your Switch 2000.

6

Installing the Module in an Unused Slot


C a u t i o n Static electricity can severely damage the sensitive electronic 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 difference between 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 going to install the module in slot ‘‘A’’, you would replace the blank LED label 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-blade screwdriver, unscrew the screws in the cover plate over the slot you want to use, and remove the cover. Store the cover plate with its screws for possible future use. For example, to install a module in slot A, see figure 1 on the next page.

7


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 aligning the edges of the module with the small grooves near the bottom of the slot, as shown in figure 2.

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

Replace the blank LED label strip with the FDDI label strip

LED Label Slot “A”

Module Slot “A”

Loosen These Two Screws

Module Slot “B”

Extractor Handles

ModuleGroove

8


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 handles contact the switch chassis. (The handles move slightly 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.

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

Raise Extractor Handles and Tighten Screws

9


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.

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

Self-test LED Slot Fault LED

10


Slot and Self-Test LED Behavior

7. Connect the appropriate FDDI cables to insert the switch into your FDDI ring. (If necessary, refer to “Connecting the Network Cables” on page 17 for information on connection options.)

N o t e There are some specific suggestions that you should observe when connecting your switch to other networking devices. See the Connectivity

Quick Reference, included with the module, for connection information.

LED Pattern

Slot Fault (for the slot 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.Check the switch event log through the console interfacefor more information.

Note: If the Fault LED for the module 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 screws in the handles are tightened.

If the module slot Fault LED continues flashing, unscrew the screws, open the handles, remove the module, and re-install it. If the Fault LED continues flashing, remove the module and contact your HP-authorized LAN dealer or HP networking support representative.

If a module is not installed properly, and the module slot Fault LED continues rapid flashing, 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.

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 failed self-test. Check the event log.

11


8. After you connect the switch to the FDDI ring, check the port LEDs for the newly-installed FDDI Module to ensure that the module is enabled. If you have not already done so, install the LED label strip for the FDDI

Module, as described in step 1 on page 7.

For example, if you installed the FDDI Module in slot A, the port LEDs for the module would be found in the location shown below:

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 receive (Rx) LEDs will flash when traffic is detected on the port.

Figure 6. Port LEDs for the Switch 2000 FDDI Module

9. Customize the port configuration, if necessary. (See “Customizing the Port Configuration” below.)

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

Port LEDs for Slot A

Port-enabled LED

Transmit LED

Receive LED

1Tx

Rx

12


Customizing the Port Configuration

If the slot in which you installed the FDDI Module was empty the last time 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

(Descriptions of the above parameters are included in the online help for the Switch 2000 console user interface screens in which the parameters occur.)

If necessary, configure the FDDI port(s) in the switch by using the switch console interface. (For information on how to use the switch console inter-face, 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 configuration shown above is correct for your network, then there is no need for further configuration.

Rebooting the Switch

You can reboot the switch by using the Reboot Switch command in the console Main menu, by pressing the recessed Reset button located to the right of the Power LED on the Switch 2000, or by cycling the power.

Figure 7. Location of the Reset Button

Power LED Reset Button

13


Generally, you only need to reboot the switch when it needs to recognize a change in its hardware or software (console) configuration. Some circum-stances 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 certain switch configuration parameters through the console interface—in this 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


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

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 the slot and the Fault and status LEDs for that slot are off.

N o t e 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.)

Disengage These Two Screws

15


4. Slide the module out of the slot.

5. Do one of the following:

• 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 correct LED label 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 over the empty slot opening and replace the LED label strip for that slot with a blank LED strip saved previously.

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

• 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.)

C a u t i o n For proper cooling and reduction of electromagnetic emissions, ensure that a slot cover (provided with your Switch 2000) is installed on any unused port.

16

Connecting the Network Cables


The FDDI Module uses a dual-port FDDI interface, with 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 switch 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, which isolates a cable or concentrator failure so that it will not break the switch’s connection to the FDDI ring. An example of ring wrapping is illustrated on page 24.

N o t e 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


Dual-Attachment Station (DAS)

Figure 9. Example of a DAS Configuration

To connect the FDDI interface as a DAS without a bypass switch, connect 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 Station (SAS)

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 concentrator in the FDDI ring. For information on cables, refer to “Cables and Connectors” on page 28.

......

Adjacent DAS Adjacent DASSwitch 2000 with FDDI Module

" " " !!!

- -

FDDI Concentrator (shown as a DAS

FDDI

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

-)#�" -)#�!

device)

Module

18


Figure 11. Connecting a DAS without a Bypass Switch

Optionally, you can attach a bypass switch between the adjacent DAS and the FDDI Module to prevent ring wrapping. See “Optical Bypass Switch Connection (Optional)” on page 21 for the instructions and an illustration of the required connections.

To Port B of Adjacent DAS

To Port A of Adjacent DAS

19

20


Dual-Homed Station

Dual homing is a double or redundant SAS connection providing a backup link to an FDDI concentrator on the ring, either the same concentrator or a different concentrator, so that only one link is active at a time. In the example configuration shown below, traffic is 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.

Figure 12. Example of a Dual-Homed Station Configuration

-)#�" -)#�!

FDDI Module Installed in Switch 2000

--

- -

-

- - -

"

!

"!

Backup FDDI Concentrator

Primary FDDI Concentrator


Standalone FDDI Networking

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 traffic between Ethernet segments and allow the server(s) to use a full 100Mbit/s bandwidth in which to serve incoming segments.

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

Optical Bypass Switch Connection (Optional)

If your FDDI connection includes an optical bypass switch, use the following 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 connectors should be keyed so that 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 with the 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.) See figure 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.

PCServer

Unix NFS

Server

21


Figure 14. Example of Connecting a Bypass Switch

Optical Bypass Connecto

"

!

!

"

!

Connect to Port B of Adjacent DAS

Connect to Port A of Adjacent DAS

r

22

Troubleshooting

Troubleshooting

For general information about troubleshooting problems using any interface card in the Switch 2000, refer to the installation manual you received 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

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.

FDDI Status LEDs

23

Troubleshooting

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

LED Meaning

Thru Green when the primary path enters at A and exits at B; and the secondary path enters at B and exits at A. (Neither MIC is in a wrap state).

Wrap AorWrap B

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 not lit is not communicating, such as when the cable connection to the unlit MIC is interrupted.A dual attachment station (DAS) attached to the MIC for which Wrap is not lit is not functional.Refer to figure 16, below, for an illustration of Wrap and Thru operation.

Sig ASig B

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

Ring Op Green if the switch is inserted and operating in an FDDI ring and is in either Thru or Wrap mode. (Wrap is illustrated in figure 16 below.)

Bypass Green when the switch has power, but the attached bypass switch is causing the FDDI ring to bypass the Switch 2000, including when the Switch 2000 is booting and when the FDDI circuit is disabled. This LED is not lit when the FDDI circuit is enabled.

Net Fail Orange when the interface fails self-test or is not operating on an active FDDI ring. Possible causes of failure include the switch, the FDDI Module, the cabling, the attached station, or the optical bypass.

24

Troubleshooting

SNAP-Encapsulated Packet Conversion Across the FDDI Ring

In accordance with the IEEE 802.1 bridging standard, FDDI SNAP packets are translated to Ethernet II packets when bridging between FDDI and Ethernet segments. Packets originating on Ethernet with SNAP encoding will arrive as Ethernet II packets after traversing the FDDI ring, which may cause connectivity problems.

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 being 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 interface, select Statistics to display the Statistics screen.

5. In the Statistics screen, select Module Description to display the Module Description screen. 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.

Client Node

Switch 1

Switch 2

Server Node

Traffic Generated as SNAP Packets...

...is received as Ethernet 2 Packets

25

Troubleshooting

Figure 17. Example of the Module Description Screen

Module OS Version

26

Troubleshooting

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

1. From the Main menu, select Statistics

2. In the Statistics screen, select Switch Information

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

Figure 18. Example of the Switch Information Screen

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 version number, then the FDDI Module should operate properly with the Switch 2000. Otherwise, you should obtain the latest version of Switch 2000 software and perform a software download. (Refer to “Downloading Software” on page 3.)

Switch OS Version

27

Cables and Connectors

Cables and Connectors

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

Figure 19. FDDI Bypass Mini-DIN Connector Pins

Cable or Connector HP Part Number

62.5/125 micron multimode fiber-optic cable with fixed-shroud duplex (FSD) media inter-face connector (MIC)

Contact your HP-authorized LAN dealer

FDDI optical bypass switch 5063-2488

FDDI loopback hood 5063-2490

HP 5063-2488

pin 1

pin 2switch positive (5V, 400 mA max)

pin 3

pin 4switch ground

pin 5 bypass detect

pin 6 ground

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

28

Customer Support Services

Customer Support Services

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

■ HP BBS and the World Wide Web

■ Hewlett-Packard FTP Library Service on the Internet

■ CompuServe

■ HP Network Phone-In Support (NPS)

■ HP FIRST Fax Retrieval Service

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-condensingMaximum altitude: 4.6 km (15,000 feet)

Electromagnetic

Emissions

FCC part 15 Class ACISPR-22 (1985) Class A EN55022 (1988) Class AVCCI Class 1Complies with Canadian EMC Class A requirements.

Immunity

EN50082-1 (1992)See the Declaration of Conformity in the installation guide for the HP J3100A AdvanceStack Switch 2000 for more details.

30

Regulatory Statements


FCC Statement (U.S.A.)

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications.

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

VCCI (Japan)

31


European Community

This equipment complies with CISPR22/EN55022 Class A.

N o t e 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 Conformity

This product is designed for operation with the J3100A HP AdvanceStack Switch 2000 and is listed in the Declaration of Conformity for the Switch 2000.

DOC Statement (Canada)

Complies with Canadian EMC Class A requirements.

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