Cisco NCS 6000 Series User Manual

Before you begin
OSPF NSF requires that all neighbor networking devices be NSF aware, which happens automatically after
you install the Cisco IOS XR software image on the router. If an NSF-capable router discovers that it has
non-NSF-aware neighbors on a particular network segment, it disables NSF capabilities for that segment.
Other network segments composed entirely of NSF-capable or NSF-aware routers continue to provide NSF
capabilities.
The following are restrictions when configuring nonstop forwarding:
• OSPF Cisco NSF for virtual links is not supported.
• Neighbors must be NSF aware.
Note
SUMMARY STEPS
1. configure
2. router ospf process-name
3. router-id { router-id }
4. Do one of the following:
• nsf cisco
• nsf cisco enforce global
5. nsf interval seconds
6. nsfflush-delay-timeseconds
7. nsflifetimeseconds
8. nsfietf
9. commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables OSPF routing for the specified routing process and
places the router in router configuration mode.
router ospf process-name
Example:
Step 2
The process-name argument is any
alphanumeric string no longer than 40 characters.
Note
RP/0/RP0/CPU0:router(config)# router ospf 1
Configures a router ID for the OSPF process.
router-id { router-id }
Step 3
Example:
We recommend using a stable IPv4 address as
the router ID.
Note
RP/0/RP0/CPU0:router(config-ospf)# router-id
192.168.4.3
Enables Cisco NSF operations for the OSPF process.Do one of the following:
Step 4
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
302
Implementing OSPF
Configuring Nonstop Forwarding Specific to Cisco for OSPF Version 2

Cisco NCS 6000 Series Specifications

General

Brand	Cisco
Model	NCS 6000 Series
Category	Network Router
Language	English