Cisco Catalyst 4500 Series Software Configuration Manual page 422

How to Perform the ISSU Process
The following example shows how the forced option places the system in RPR mode:
Switch# show issu state detail
The following example shows the redundancy mode as RPR:
Switch# show redundancy states
Redundancy Mode (Operational) = RPR
Redundancy Mode (Configured) = Stateful Switchover
client count = 64
client_notification_TMR = 240000 milliseconds
Switch# show redundancy
Redundant System Information :
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Switchovers system experienced = 0
Configured Redundancy Mode = Stateful Switchover
Operating Redundancy Mode = Stateful Switchover
Current Processor Information :
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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
8-24
RP State = Active
ISSU State = Load Version
Operating Mode = Stateful Switchover
Current Image = bootflash:old_image.bin
Pre-ISSU (Original) Image = bootflash:old_image.bin
Post-ISSU (Targeted) Image = bootflash:new_image.bin
RP State = Standby
ISSU State = Load Version
Operating Mode = Stateful Switchover
Current Image = bootflash:new_image.bin
Pre-ISSU (Original) Image = bootflash:old_image.bin
Post-ISSU (Targeted) Image = bootflash:new_image.bin
my state = 13 -ACTIVE
peer state = 4 -STANDBY COLD
Mode = Duplex
Unit = Primary
Unit ID = 3
Redundancy State = RPR
Manual Swact = enabled
Communications = Up
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
keep_alive threshold = 18
RF debug mask = 0
Available system uptime = 10 hours, 35 minutes
Standby failures = 3
Last switchover reason = none
Hardware Mode = Duplex
Maintenance Mode = Disabled
Communications = Up
Active Location = slot 5
Current Software state = ACTIVE
Uptime in current state = 10 hours, 34 minutes
Chapter 8 Configuring the Cisco IOS XE In Service Software Upgrade Process
Slot = 5
Slot = 6