Cisco Catalyst 4500 Series - ISSU Using the Four Command Sequence: Step 4 (Commitversion)

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
OL-30933-01
Chapter 5 Configuring Virtual Switching Systems
In-Service Software Upgrade (ISSU) on a VSS
This example displays the Timer before you stop it. In the following example, the “Automatic Rollback
Time” information indicates the amount of time remaining before an automatic rollback will occur.
Switch> enable
Switch# show issu rollback-timer
Rollback Process State = 00:31:09 remaining
Configured Rollback Time = 00:45:00
Switch# issu acceptversion 611 bootflash:new_image
% Rollback timer stopped. Please issue the commitversion command.
Switch# show issu rollback-timer
Rollback Process State = Not in progress
Configured Rollback Time = 00:45:00
ISSU using the Four Command Sequence: Step 4 (commitversion)
The commitversion step reloads the standby supervisor engine with the post-upgrade image.
Perform the following steps at the active supervisor engine:
This example shows how to reset and reload the current standby supervisor engine (slot 1) with the new
Cisco IOS XE software version. After you enter the commitversion command, the standby supervisor
engine boots in the Standby Hot state.
Command or Action Purpose
Step 1
Switch> enable
Enables privileged EXEC mode.
Enter your password if prompted.
Step 2
Switch# issu acceptversion [active-slot]
[active-image-new]]
Halts the rollback timer and ensures the new Cisco IOS XE
ISSU process is not automatically aborted during the ISSU
process.
Enter the issu acceptversion command within the time
period specified by the rollback timer to acknowledge that
the supervisor engine has achieved connectivity to the
outside world; otherwise, the ISSU process is terminated,
when the rollback timer expires, and the system reverts to
the previous version of Cisco IOS XE software by switching
to the standby supervisor engine.
Step 3
Switch# show issu rollback-timer
Displays the amount of time left before an automatic
rollback will occur.
Command or Action Purpose
Step 1
Switch> enable
Enables privileged EXEC mode.
Enter your password if prompted.
Step 2
Switch# issu commitversion [standby-slot]
[standby-image-new]
Allows the new Cisco IOS XE software image to be loaded
into the standby supervisor engine.
Step 3
Switch# show redundancy [states]
Displays redundancy facility state information.
Step 4
Switch# show issu state [detail]
Displays the state of the during the ISSU process. At this
point in the ISSU process, use this command to check that
the standby supervisor engine is loaded with the new image.