Installation guide

5-4
Cisco IGX 8400 Series Installation Guide, Release 9.3.3 and Later Releases
OL-1165-06
Chapter 5 Replacing Parts on the IGX
Board-Level Revision Number
Note If there are any bent pins or defects, contact the Cisco TAC before proceeding. For more
information, refer to the “Obtaining Technical Assistance” section on page xxiii.
Step 12 Insert the replacement IGX SCM into the empty slot.
Step 13 Tighten captive mounting screws on the top and bottom of the IGX SCM faceplate.
Step 14 Operate the extractor levers and slide the SCM into the cabinet. Verify that extractor levers do not get
wedged behind the SCM faceplate on insertion.
Step 15 Reattach all cables to the IGX SCM.
Step 16 Power on the IGX.
Note Verify that the IGX displays no new alarms after startup. It can take 10 to 15 minutes for all the
cards in the IGX to clear alarm status. Do not power the node off and on to clear alarms. If alarms
do not clear, contact the Cisco TAC (see the “Obtaining Technical Assistance” section on
page xxiii). If the IGX clears alarm state, but does not recognize the correct number of cards in
the chassis, a jumper might need to be changed on the SCM. If this happens, contact the
Cisco TAC to obtain the correct jumper position.
Note For an illustrated view of removing and inserting cards, see the “Inserting the Cards” section on
page 3-8.
Board-Level Revision Number
The manufacturing board-level revision number, also known as the manufacturing 800 number, provides
the maximum information possible about a given card. The ability to remotely identify the
manufacturing board-level revision number assists in troubleshooting, maintenance, and sparing. Prior
to Switch Software Release 9.3.0, there was no mechanism to remotely identify the board-level revision
number without physically removing the card from the slot. Now, the board-level revision number is
stored in each card’s NVRAM, and the Cisco WAN switch software is able to read the board-level
revision number and store it in the SNMP MIB. This project provides the capability to identify the
board-level revision number through CLI, Cisco WAN Manager, or CiscoView for IGX front cards.
You can view the board revision number, also called the top assembly number, using the
dspcd
command. Use the dspnovram command to view NVRAM information for the interface cards. To
configure NVRAM use the
setnovram command. Use the cnfnpmparm command to view and configure
the NVRAM information for the NPM cards. For a description of how to use these commands, refer to
the Cisco WAN Switching Command Reference and the Cisco WAN Switching SuperUser Command
Reference.
Note Switch software releases prior to 9.3.0 do not display the board revision number. With Switch Software
Release 9.3.0 or later software, the switch software displays the number stored in NVRAM as the top
assembly number. If the number displayed doesn’t start with 800, the number displayed is actually the
fab number rather than the top assembly number.