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Implementing OSPF on Cisco IOS XR Software
How to Implement OSPF on Cisco IOS XR Software
RC-237
Cisco IOS XR Routing Configuration Guide
OL-14356-01
DETAILED STEPS
Enabling Multicast-intact for OSPFv2
This optional task describes how to enable multicast-intact for OSPFv2 routes that use IPv4 addresses.
Summary Steps
1. configure
2. router ospf instance-id
3. mpls traffic-eng multicast-intact
Command or Action Purpose
Step 1
configure
Example:
RP/0/RP0/CPU0:router# configure
Enters global configuration mode.
Step 2
router ospf instance-id
Example:
RP/0/RP0/CPU0:router(config)# router ospf isp
Enables OSPF routing for the specified routing process, and
places the router in router configuration mode. In this
example, the OSPF instance is called isp.
Step 3
nsr
Example:
RP/0/RP0/CPU0:router(config-ospf)# nsr
Enables NSR for the OSPFv2 process.
Step 4
end
or
commit
Example:
RP/0/RP0/CPU0:router(config-ospf)# end
or
RP/0/RP0/CPU0:router(config-ospf)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
–
Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
–
Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
–
Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.