Cisco Catalyst 4500 series Administration Manual page 292

In-Service Software Upgrade (ISSU) on a VSS
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Switch#show issu state detail
bootflash:cat4500e-universal.SSA.03.03.00.SGN1.34.151-2.SGN1.34.bin
bootflash:cat4500e-universal.SSA.03.03.00.SGN1.34.151-2.SGN1.34.bin
Switch# show redundancy states
Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured) = Stateful Switchover
Communications = Up
client count = 74
client_notification_TMR = 240000 milliseconds
Switch# show redundancy
Redundant System Information :
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Switchovers system experienced = 3
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
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RP State = Active
ISSU State = Init
Operating Mode = Stateful Switchover
Current Image =
Pre-ISSU (Original) Image = N/A
Post-ISSU (Targeted) Image = N/A
RP State = Standby
ISSU State = Init
Operating Mode = Stateful Switchover
Current Image =
Pre-ISSU (Original) Image = N/A
Post-ISSU (Targeted) Image = N/A
my state = 13 -ACTIVE
peer state = 8 -STANDBY HOT
Mode = Duplex
Unit = Primary
Unit ID = 11
Redundancy State = Stateful Switchover
Manual Swact = enabled
keep_alive TMR = 9000 milliseconds
keep_alive count = 0
keep_alive threshold = 18
RF debug mask = 0
Available system uptime = 4 hours, 16 minutes
Chapter 5
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Slot = 11
Slot = 1
Configuring Virtual Switching Systems
OL-30933-01