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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

«
...
31
32
33
34
35
...
»

Содержание J3108A

Страница 1: ...HP AdvanceStack Switch FDDI Module Installation Guide ...

Страница 2: ...RRANTY 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 reliabilit...

Страница 3: ...word 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_city ...

Страница 4: ...on 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 servic...

Страница 5: ...pass 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 conn...

Страница 6: ...000 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...

Страница 7: ...rt 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 Cab...

Страница 8: ......

Страница 9: ...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...

Страница 10: ...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 ...

Страница 11: ...a 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 u...

Страница 12: ...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 te 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 ...

Страница 13: ...ory 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 ...

Страница 14: ... that you specifyfor thefilenamein the Switch 2000Download 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 receiv...

Страница 15: ... 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 F...

Страница 16: ... position the module in front of an open slot on the switch by aligning the edges of the module with the small groovesnearthe 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 Module Groove ...

Страница 17: ...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...

Страница 18: ...river 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 ...

Страница 19: ... console interface for 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 thehandles removethemodule and re install it If theF...

Страница 20: ...he 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 ...

Страница 21: ...r 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 t...

Страница 22: ...e 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 t...

Страница 23: ...d 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 te 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 fo...

Страница 24: ...le 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...

Страница 25: ...evice 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...

Страница 26: ... 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 DAS Switch2000with FDDI Module FDDI Concentrator...

Страница 27: ...tionally 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 ...

Страница 28: ...ifferent concentrator so that only one link is active at a time In the example configuration shown below traffic is sent and received overMIC B of theFDDI 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 Concentrato...

Страница 29: ...llowing 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 ...

Страница 30: ...22 Connecting the Network Cables 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 ...

Страница 31: ...nd 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 properl...

Страница 32: ...is not functional Refer to figure 16 below for an illustration of Wrap and Thru operation Sig A Sig 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 Greenwhentheswitchhaspower buttheattachedbypassswitch iscausingtheFDDI ringt...

Страница 33: ...Module the module and switch will be compatible unless the switch software predates the modulesoftware 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 n...

Страница 34: ...26 Troubleshooting Figure 17 Example of the Module Description Screen Module OS Version ...

Страница 35: ... 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 so...

Страница 36: ...nector Pins Cable or Connector HPPart Number 62 5 125 micron multimodefiber opticcable 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 2 switch positive 5V 400 mA max pin 3 pin 4 switch ground pin 5 bypass detect pin 6 ground When pin 5 is attached to pin 6 the...

Страница 37: ... 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 ...

Страница 38: ... 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 1985 Class A EN55022 1988 Class A VCCI Class 1 Complies 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 ...

Страница 39: ... 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...

Страница 40: ...nt 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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