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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
%issu loadversion executed successfully, Standby is being reloaded
Switch# show issu state detail
Slot = 1
RP State = Active
ISSU State = Load Version
Operating Mode = Stateful Switchover
Current Image = bootflash:old_image
Pre-ISSU (Original) Image = bootflash:old_image
Post-ISSU (Targeted) Image = bootflash:new_image
Slot = 11
RP State = Standby
ISSU State = Load Version
Operating Mode = Stateful Switchover
Current Image = bootflash:new_image
Pre-ISSU (Original) Image = bootflash:old_image
Post-ISSU (Targeted) Image = bootflash:new_image
Switch# show redundancy states
my state = 13 -ACTIVE
peer state = 8 -STANDBY HOT
Mode = Duplex
Unit = Primary
Unit ID = 1
Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured) = Stateful Switchover
Redundancy State = Stateful Switchover
Manual Swact = enabled
Communications = Up
client count = 474
client_notification_TMR = 240000 milliseconds
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
keep_alive threshold = 18
RF debug mask = 0
ISSU using the Four-command Sequence: Step 2 (runversion)
This task describes the second step of the ISSU four-command sequence, runversion, wherein a
switchover occurs and the standby supervisor engine, which is now loaded with the post-upgrade image,
takes over as the new Active.
At the end of the loadversion step, the following message is logged:
*Aug 14 13:07:08.240: %INSTALLER-7-ISSU_OP_SUCC: Peer state is [STANDBY SSO]; Please issue
the runversion command
Now, you are ready to proceed to the next step.
Perform the following steps at the active supervisor engine.
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