Verifying Redundancy Mode Before Beginning The Issu Process - Cisco Catalyst 4500 series Administration Manual

In-Service Software Upgrade (ISSU) on a VSS
Command or Action
Step 3
Switch# show redundancy
Step 4
Switch# show switch virtual
This example shows how to display the state and the current status of the supervisor engine during the
ISSU process:
Switch> enable
Switch# show issu state
Switch# show redundancy
Switch# show switch virtual

Verifying Redundancy Mode Before Beginning the ISSU Process

Before you begin the ISSU process, verify that the VSS is operating correctly; one supervisor engine
operates as the SSO Active and the peer supervisor engine in the other switch operating as the SSO Hot
Standby.
The following example displays verification that the system operating correctly as a VSS. Slot 1/1 (the
supervisor engine in slot 1 of Switch 1) is the active supervisor engine, and Slot 2/1 (the supervisor
engine in slot 1 of Switch 2) is the standby supervisor engine.
Switch# show redundancy states
Redundancy Mode (Operational) = Stateful Switchover
Redundancy Mode (Configured) = Stateful Switchover
Communications = Up
client_notification_TMR = 240000 milliseconds
Switch# show redundancy
Redundant System Information :
------------------------------
Switchovers system experienced = 0
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)SG
5-64
my state = 13 -ACTIVE
peer state = 8 -STANDBY HOT
Mode = Duplex
Unit = Primary
Unit ID = 1
Redundancy State = Stateful Switchover
Manual Swact = enabled
client count = 77
keep_alive TMR = 9000 milliseconds
keep_alive count = 0
keep_alive threshold = 18
RF debug mask = 0
Available system uptime = 11 minutes
Standby failures = 0
Last switchover reason = none
Hardware Mode = Duplex
Configured Redundancy Mode = Stateful Switchover
Operating Redundancy Mode = Stateful Switchover
Maintenance Mode = Disabled
Communications = Up
Chapter 5
Purpose
Displays current or historical status, mode, and related
redundancy information about the device.
Identifies which switch of the VSS is currently performing
the Active role, and which switch the Standby.
Configuring Virtual Switching Systems
OL-30933-01