Cisco Cisco IOS Software Release 12.4(6)T
OSPF RFC 3623 Graceful Restart Helper Mode
Configuration Example for OSPF RFC 3623 Graceful Restart Helper Mode
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Cisco IOS Release 12.4(6)T
DETAILED STEPS
Configuration Example for OSPF RFC 3623 Graceful Restart
Helper Mode
Helper Mode
This section contains the following example:
•
Command or Action
Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
•
Enter your password if prompted.
Step 2
configure
terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
router ospf
process-id [vrf vpn-name]
Example:
Router(config)# router ospf 454
Configures an Open Shortest Path First (OSPF) routing
process and enters router configuration mode.
process and enters router configuration mode.
Step 4
nsf ietf
helper disable
Example:
Router(config-router)# nsf ietf helper disable
Disables helper mode for IETF NSF.
Step 5
nsf ietf
helper strict-lsa-checking
Example:
Router(config-router)# nsf ietf
strict-lsa-checking
Enables strict LSA checking on an NSF-aware (helper)
router.
router.
Step 6
end
Example:
Router(config-router)# end
Returns to privileged EXEC mode.
Step 7
show ip ospf
[process-id]
Example:
Router# show ip ospf 454
Displays general information about OSPF routing processes
and whether helper mode or strict LSA checking is enabled
for the NSF-aware (helper) router.
and whether helper mode or strict LSA checking is enabled
for the NSF-aware (helper) router.