Cisco Catalyst 4500 series Administration Manual page 461

Chapter 11 Configuring Supervisor Engine Redundancy Using RPR and SSO on Supervisor Engine 7-E, Supervisor
Redundancy Mode (Configured) = Stateful Switchover
Communications = Up
client_notification_TMR = 240000 milliseconds
This example shows how to change the system configuration from RPR to SSO mode:
Switch(config)# redundancy
Switch(config-red)# mode
Switch(config-red)# mode sso
Changing to sso mode will reset the standby. Do you want to continue?[confirm]
Switch(config-red)# end
Switch#
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has been lost
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This example shows how to change the system configuration from SSO to RPR mode:
Switch(config)# redundancy
Switch(config-red)# mode rpr
Changing to rpr mode will reset the standby. Do you want to continue?[confirm]
Switch(config-red)# end
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Virtual Console for Standby Supervisor Engine
Catalyst 4500 series switches can be configured with 2 supervisor engines to provide redundancy. When
the switch is powered, one of the supervisor engines becomes active and remains active until a
switchover occurs. The other supervisor engine remains in standby mode.
Each supervisor engine has its own console port. Access to the standby supervisor engine is possible
only through the console port of the standby supervisor engine. Therefore, you must connect to the
standby console to access, monitor or debug the standby supervisor.
Virtual Console for Standby Supervisor Engine enables you to access the standby console from the active
supervisor engine without requiring a physical connection to the standby console. It uses IPC over
EOBC to communicate with the standby supervisor engine and thus emulate the standby console on the
active supervisor engine. Only one standby console session is active at any time.
The Virtual Console for Standby Supervisor Engine allows users who are logged onto the active
supervisor engine to remotely execute show commands on the standby supervisor engine and view the
results on the active supervisor engine. Virtual Console is available only from the active supervisor
engine.
You can access the standby virtual console from the active supervisor engine with the attach module,
session module, or remote login commands on the active supervisor engine. You must be in privilege
EXEC mode (level 15) to run these commands to access the standby console.
OL_28731-01
Redundancy State = Stateful Switchover
Manual Swact = enabled
client count = 64
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
keep_alive threshold = 18
RF debug mask = 0
1 13:11:16: %C4K_REDUNDANCY-3-COMMUNICATION: Communication with the peer Supervisor
1 13:11:16: %C4K_REDUNDANCY-3-SIMPLEX_MODE: The peer Supervisor has been lost
1 13:11:16: %C4K_REDUNDANCY-3-COMMUNICATION: Communication with the peer Supervisor
1 13:11:16: %C4K_REDUNDANCY-3-SIMPLEX_MODE: The peer Supervisor has been lost
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
Configuring Supervisor Engine Redundancy
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