Manual

Cisco IOS In Service Software Upgrade Process
How to Perform the ISSU Process
20
Cisco IOS Release 12.2(28)SB
DETAILED STEPS
Aborting a Software Upgrade Using ISSU
You can abort the ISSU process at any stage manually by issuing the issu abortversion command. The
ISSU process also aborts on its own if the software detects a failure.
If you abort the process after you issue the issu loadversion command, then the standby RP is reset and
reloaded with the original software.
If the process is aborted after either the issu runversion or issu acceptversion command is entered, then
a second switchover is performed to the new standby RP that is still running the original software
version. The RP that had been running the new software is reset and reloaded with the original software
version.
This task describes how to abort the ISSU process before a user has committed to the process by issuing
the issu commitversion command.
SUMMARY STEPS
1. enable
2. issu abortversion slot image
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
issu commitversion slot active-image
Example:
Router# issu commitversion a
stby-disk0:c10k2-p11-mz.2.20040830
Allows the new Cisco IOS software image to be loaded into
the standby RP.