Cisco WS-X6066-SLB-APC - Content Switching Module Software Manual page 522

MSFC Redundancy
MSFC Recovery Procedures
This section describes how to recover from temporary or permanent MSFC failures.
A temporary failure of the active MSFC results in the MSFC simply rebooting because the configuration
register is set to 0x2102.
A suspected permanent failure of the active MSFC first needs to be verified. Do this by entering the reset
15 command from the active supervisor engine's console port and see if the active MSFC reboots
without problems. If it does not, you have the following two options to switch over to the standby MSFC.
Option 1: If You Have Physical Access to the Switch
If you have physical access to the switch, use this option. You can remove the active supervisor engine
with the problematic MSFC, so the redundant supervisor engine will take over. From the redundant
supervisor engine's physical console port, perform these steps:
Enter the switch console command.
Step 1
Step 2 From the ROMMON prompt, enter the boot bootflash:image command.
Step 3 After the standby MSFC has booted, from Cisco IOS configuration mode enter the config-register
0x2102 command to ensure the MSFC will boot when the switch is reset.
Option 2: If You Have Remote Access Only to the Switch
If you only have remote access to the switch, use this option. From the active supervisor engine with the
problematic MSFC, perform these steps:
If the problematic MSFC is on the standby supervisor engine, enter the switch supervisor
Note
command.
Enter the switch console command.
Step 1
Send a Break signal to get into the problematic MSFC's ROMMON (the break will work if the MSFC
Step 2
is continually rebooting). You need to time the break so that it is issued after the system bootstrap
message, but before the main Cisco IOS image is decompressed (see the two arrows in the following
display output):
System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE
Copyright (c) 1998 by cisco Systems, Inc.
Cat6k-MSFC platform with 131072 Kbytes of main memory <======= ISSUE BREAK AFTER THIS
POINT
Self decompressing the image :
######################################################################################
[OK]
<==========BUT BEFORE THIS POINT
Self decompressing the image :
##########################################################################################
##########################################################################################
##########################################################################################
Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
22-48
Chapter 22 Configuring Redundancy
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