Specifications

Implementing OSPF on Cisco IOS XR Software
How to Implement OSPF on Cisco IOS XR Software
RC-270
Cisco IOS XR Routing Configuration Guide
SUMMARY STEPS
1. configure
2. router ospf process-name
3. router-id {router-id}
4. nsf cisco
or
nsf cisco enforce global
5. nsf interval seconds
6. end
or
commit
DETAILED STEPS
Command or Action Purpose
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
router ospf process-name
Example:
RP/0/RP0/CPU0:router(config)# router ospf 1
Enables OSPF routing for the specified routing process and
places the router in router configuration mode.
Note The process-name argument is any alphanumeric
string no longer than 40 characters.
Step 3
router-id { router-id }
Example:
RP/0/RP0/CPU0:router(config-ospf)# router-id
192.168.4.3
Configures a router ID for the OSPF process.
Note We recommend using a stable IPv4 address as the
router ID.
Step 4
nsf cisco
or
nsf cisco enforce global
Example:
RP/0/RP0/CPU0:router(config-ospf)# nsf cisco
enforce global
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.
• Use the nsf cisco command with the optional enforce
and global keywords if the router is expected to
perform NSF during restart. However, if non-NSF
neighbors are detected, NSF restart is canceled for the
entire OSPF process.