Cisco 6500 - Manual (Page 31)

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Cisco IOS Software Configuration Guide, Release 12.2SX
OL-13013-06
Chapter 4 Configuring Virtual Switching Systems
Configuring a VSS
Backing Up the Standalone Configuration
Save the configuration files for both chassis operating in standalone mode. You need these files to revert
to standalone mode from virtual switch mode. On Switch 1, perform this task:
Perform the following task on Switch 2:
Configuring SSO and NSF
SSO and NSF must be configured and enabled on both chassis. On Switch 1, perform this task:
Perform the following task on Switch 2:
Command Purpose
Step 1 Switch-1# copy running-config startup-config (Optional) Saves the running configuration to startup
configuration.
Step 2 Switch-1# copy startup-config
disk0:old-startup-config
Copies the startup configuration to a backup file.
Command Purpose
Step 1 Switch-2# copy running-config startup-config (Optional) Saves the running configuration to the
startup configuration file.
Step 2 Switch-2# copy startup-config
disk0:old-startup-config
Copies the startup configuration to a backup file.
Command Purpose
Step 1 Switch-1(config)# redundancy Enters redundancy configuration mode.
Step 2 Switch-1(config-red)# mode sso Configures SSO. When this command is entered, the
redundant supervisor engine is reloaded and begins to
work in SSO mode.
Step 3 Switch-1(config-red)# exit Exits redundancy configuration mode.
Step 4 Switch-1(config)# router routing_protocol processID Enables routing, which places the router in router
configuration mode.
Step 5 Switch-1(config-router)# nsf Enables NSF operations for the routing protocol.
Step 6 Switch-1(config-router)# end Exits to privileged EXEC mode.
Step 7 Switch-1# show running-config Verifies that SSO and NSF are configured and
enabled.
Step 8 Switch-1# show redundancy states Displays the operating redundancy mode.
Command Purpose
Step 1 Switch-2(config)# redundancy Enters redundancy configuration mode.
Step 2 Switch-2(config-red)# mode sso Configures SSO. When this command is entered, the
redundant supervisor engine is reloaded and begins to
work in SSO mode.