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Enabling High Availability Features
Command
Step 3
Router(config)# hw-module slot slot-number image file-spec
Step 4
Router(config)# redundancy
Step 5
Router(config-red)# mode sso
Step 6
Router(config-red)# end
Step 7
Router# copy running-config startup-config
Configuring Frame Relay Autosynchronization LMI Sequence Numbers
The autosynchronization procedure is only for devices supporting Frame Relay and is optional. To
configure Frame Relay SSO to synchronize LMI sequence numbers between the active and standby
RSPs, use the following command in global configuration mode.
Command
Router(config)# frame-relay redundancy
auto-sync lmi-sequence-numbers
Verifying SSO
To verify that SSO is configured on the networking device, use the show redundancy command. To
verify that the device is running in SSO mode, use the show redundancy states command. The show
redundancy states command specifies whether the unit is running in SSO mode, which is indicated by
STANDBY HOT.
Route Switch Processor (RSP8) Installation and Configuration Guide
50
Purpose
Specifies the image to be used by the standby RSP
at initialization. If a high-availability image is
found, the running configuration is updated.
•
slot-number—Specifies the standby RSP slot
where the Flash memory card or Flash Disk is
located. Valid numbers are slot 2 or slot 3 for
a Cisco 7507 router or slot 6 or slot 7 for a
Cisco 7513 router.
file-spec—Indicates the Flash device and the
•
name of the image on the active RSP.
Note
Step 2 and Step 3 are the same; Step 2
applies to the active RSP and Step 3
applies to the standby RSP.
Note
The image indicated by the file-spec
attribute must be available on the local
Flash device. Remote protocols such a
TFTP and remote copy are not available.
Enters redundancy configuration mode.
Sets the redundancy configuration mode to SSO on
both the active and standby RSP.
Note
After configuring SSO mode, the standby
RSP automatically resets.
Exits redundancy configuration mode and returns
you to privileged EXEC configuration mode.
Saves the configuration changes to the startup
configuration file.
Purpose
Configures automatic synchronization of Frame
Relay LMI sequence numbers between the active RSP
and the standby RSP.
OL-4920-02
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