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OL-4923-01 B0
Configuring Frame Relay Autosynchronization LMI Sequence Numbers
To configure Frame Relay SSO to synchronize LMI sequence numbers between the active and standby
RSPs, use the following command in global configuration mode. This procedure is only for devices
supporting Frame Relay and is optional.
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.
Step 3
Router(config)# hw-module slot slot-number image
file-spec
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 active RSP slot
where the Flash memory card 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.
Step 4
Router(config)# redundancy
Enters redundancy configuration mode.
Step 5
Router(config-red)# mode sso
Sets the redundancy configuration mode to SSO on
both the active and standby RSP.
Note: After configuring SSO mode, the standby
RSP will automatically reset.
Step 6
Router(config-red)# end
Exits redundancy configuration mode and returns
the router to EXEC mode.
Step 7
Router# copy running-config startup-config
Saves the configuration changes to the startup
configuration file.
Command
Purpose
Command
Purpose
Router(config)# frame-relay redundancy
auto-sync lmi-sequence-numbers
Configures automatic synchronization of Frame
Relay LMI sequence numbers between the active RSP
and the standby RSP.