Cisco ASR 9000 Series Configuration Manual page 410

Configuring Nonstop Forwarding Specific to Cisco for OSPF Version 2
The following are restrictions when configuring nonstop forwarding:
Note
• OSPF Cisco NSF for virtual links is not supported.
• Neighbors must be NSF aware.
SUMMARY STEPS
1. configure
2. router ospf process-name
3. router-id { router-id }
4. Do one of the following:
5. nsf interval seconds
6. nsfflush-delay-timeseconds
7. nsflifetimeseconds
8. nsfietf
9. commit
DETAILED STEPS
Command or Action
Step 1 configure
Step 2 router ospf process-name
Example:
RP/0/RSP0/CPU0:router(config)# router
ospf 1
Step 3 router-id { router-id }
Example:
RP/0/RSP0/CPU0:router(config-ospf)#
router-id 192.168.4.3
Step 4
Do one of the following:
• nsf cisco
• nsf cisco enforce global
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
382
• nsf cisco
• nsf cisco enforce global
Purpose
Enables OSPF routing for the specified routing process and places
the router in router configuration mode.
The process-name argument is any alphanumeric string
Note
no longer than 40 characters.
Configures a router ID for the OSPF process.
We recommend using a stable IPv4 address as the router
Note
ID.
Enables Cisco NSF operations for the OSPF process.
• Use the nsf cisco command without the optional enforce and
global keywords to abort the NSF restart mechanism on the
interfaces of detected non-NSF neighbors and allow NSF
neighbors to function properly.
Implementing OSPF
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