Cisco Catalyst 4500 series Administration Manual page 377

Chapter 7 Configuring the Cisco IOS XE In Service Software Upgrade Process
If you abort the process after you issue the issu loadversion command, the standby supervisor engine is
reset and reloaded with the original software.
If the process is aborted after you enter either the issu runversion or issu acceptversion command, then
a second switchover is performed to the new standby supervisor engine that is still running the original
software version. The supervisor engine that had been running the new software is reset and reloaded
with the original software version.
Ensure that the standby supervisor is fully booted before issuing the abortversion command on an active
Note
supervisor engine.
The following task describes how to abort the ISSU process before you complete the ISSU process with
the issu commitversion command.
Perform the following task on the active supervisor engine.
Command or Action
Step 1
Switch> enable
Step 2
Switch# issu abortversion [active slot
[active-image-new]]
This example shows how to abort the ISSU process on slot number 6, the slot for the current active
supervisor engine. In this example, the ISSU upgrade process is in the Runversion state when the issu
abortversion command is entered:
Switch> enable
Switch# show issu state detail
Switch# issu abortversion 6
% issu abortversion initiated successfully
Switch# show issu state detail
OL-30933-01
Slot = 6
RP State = Active
ISSU State = Run Version
Operating Mode = Stateful Switchover
Current Image = bootflash:x.bin
Pre-ISSU (Original) Image = bootflash:y.bin
Post-ISSU (Targeted) Image = bootflash:x.bin
Slot = 5
RP State = Standby
ISSU State = Run Version
Operating Mode = Stateful Switchover
Current Image = bootflash:y.bin
Pre-ISSU (Original) Image = bootflash:y.bin
Post-ISSU (Targeted) Image = bootflash:x.bin
Slot = 5
RP State = Active
ISSU State = Init
Operating Mode = Stateful Switchover
Current Image = bootflash:y.bin
Pre-ISSU (Original) Image = N/A
Post-ISSU (Targeted) Image = N/A
Software Configuration Guide—Release IOS XE 3.6.0SG and IOS 15.2(2)SG
Purpose
Enables privileged EXEC mode.
Enter your password if prompted.
Cancels the ISSU upgrade or downgrade process in
progress and restores the switch to its state before the
process had started.
How to Perform the ISSU Process
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