Cisco Catalyst 4500 Series Configuration Manual page 230

Performing the ISSU Process
A switchover occurs at this point. At the new active supervisor engine, after old active supervisor engine
comes up as the standby engine, do the following:
Switch# show issu state detail
Note The new active supervisor engine is now running the new version of software, and the standby supervisor
engine is running the old version of software and is in the standby hot state.
Switch# show redundancy states
peer state = 8
Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured)
Redundancy State
Maintenance Mode = Disabled
Manual Swact = enabled
Communications = Up
client count = 39
client_notification_TMR = 240000 milliseconds
keep_alive threshold = 18
Once runversion command completes, the new active supervisor engine is running the new version of
software and the previously active supervisor engine now becomes the standby supervisor engine. The
standby is reset and reloaded, but remains on the previous version of software and come back online in
standbyhot status. The following example shows how to verify these conditions:
Switch# show redundancy
Redundant System Information :
------------------------------
Switchovers system experienced = 1
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
5-22
Slot = 2
RP State = Active
ISSU State = Run Version
Boot Variable = bootflash:new_image,12;bootflash:old_image,12
Operating Mode = Stateful Switchover
Primary Version = bootflash:new_image
Secondary Version = bootflash:old_image
Current Version = bootflash:new_image
Slot = 1
RP State = Standby
ISSU State = Run Version
Boot Variable = bootflash:old_image,12
Operating Mode = Stateful Switchover
Primary Version = bootflash:new_image
Secondary Version = bootflash:old_image
Current Version = bootflash:old_image
my state = 13 -ACTIVE
-STANDBY HOT
Mode = Duplex
Unit = Secondary
Unit ID = 2
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
RF debug mask = 0x0
Available system uptime = 23 minutes
Standby failures = 0
Last switchover reason = user forced
Chapter 5 Configuring the Cisco IOS In-Service Software Upgrade Process
= Stateful Switchover
= Stateful Switchover
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