Cisco Catalyst 4500 Series Administration Guide

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Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 11 Configuring Supervisor Engine Redundancy Using RPR and SSO on Supervisor Engine 7-E, Supervisor
Configuring Supervisor Engine Redundancy
Redundancy Mode (Configured) = Stateful Switchover
Redundancy State = Stateful Switchover
Manual Swact = enabled
Communications = Up
client count = 64
client_notification_TMR = 240000 milliseconds
keep_alive TMR = 9000 milliseconds
keep_alive count = 1
keep_alive threshold = 18
RF debug mask = 0
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#
*Aug 1 13:11:16: %C4K_REDUNDANCY-3-COMMUNICATION: Communication with the peer Supervisor
has been lost
*Aug 1 13:11:16: %C4K_REDUNDANCY-3-SIMPLEX_MODE: The peer Supervisor has been lost
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
*Aug 1 13:11:16: %C4K_REDUNDANCY-3-COMMUNICATION: Communication with the peer Supervisor
has been lost
*Aug 1 13:11:16: %C4K_REDUNDANCY-3-SIMPLEX_MODE: The peer Supervisor has been lost
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.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E