Cisco 6500 - Manual (Page 32)

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Cisco IOS Software Configuration Guide, Release 12.2SX
OL-13013-06
Chapter 4 Configuring Virtual Switching Systems
Configuring a VSS
For detailed information on configuring and verifying SSO and NSF, see Chapter 6, “Configuring NSF
with SSO Supervisor Engine Redundancy.”
Assigning Virtual Switch Domain and Switch Numbers
You must configure the same virtual switch domain number on both chassis of the VSS. The virtual
switch domain is a number between 1 and 255, and must be unique for each VSS in your network (the
domain number is incorporated into various identifiers to ensure that these identifiers are unique across
the network).
Within the VSS, you must configure one chassis to be switch number 1 and the other chassis to be switch
number 2.
To configure the virtual switch domain and switch number on both chassis, perform this task on
Switch 1:
Perform the following task on Switch 2:
Note The switch number is not stored in the startup or running configuration, because both chassis use the
same configuration file (but must not have the same switch number).
Step 3 Switch-2(config-red)# exit Exits redundancy configuration mode.
Step 4 Switch-2(config)# router routing_protocol processID Enables routing, which places the router in router
configuration mode.
Step 5 Switch-2(config-router)# nsf Enables NSF operations for the routing protocol.
Step 6 Switch-2(config-router)# end Exits to privileged EXEC mode.
Step 7 Switch-2# show running-config Verifies that SSO and NSF are configured and
enabled.
Step 8 Switch-2# show redundancy states Displays the operating redundancy mode.
Command Purpose
Command Purpose
Step 1 Switch-1(config)# switch virtual domain 100 Configures the virtual switch domain on Chassis A.
Step 2 Switch-1(config-vs-domain)# switch 1 Configures Chassis A as virtual switch number 1.
Step 3 Switch-1(config-vs-domain)# exit Exits config-vs-domain.
Command Purpose
Step 1 Switch-2(config)# switch virtual domain 100 Configures the virtual switch domain on Chassis B.
Step 2 Switch-2(config-vs-domain)# switch 2 Configures Chassis B as virtual switch number 2.
Step 3 Switch-2(config-vs-domain)# exit Exits config-vs-domain.