Prerequisites For Multicast Nonstop Forwarding - Cisco XR 12000 Series Configuration Manual

Implementing Multicast Routing on Cisco IOS XR Software Cisco ASR 9000 Series Routers

Prerequisites for Multicast Nonstop Forwarding

For NSF to operate in your multicast network, you must also enable NSF for the unicast protocols (such
as IS-IS, OSPF, and BGP) that PIM relies on for Reverse Path Forwarding (RPF) information. See the
appropriate configuration modules to learn how to configure NSF for unicast protocols.
SUMMARY STEPS
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DETAILED STEPS
Command or Action
Step 1
configure
Example:
RP/0/0/CPU0:router# configure
Step 2
multicast-routing [address-family {ipv4 |
ipv6}]
Example:
RP/0/0/CPU0:router(config)# multicast-routing
Step 3
nsf [lifetime seconds]
Example:
RP/0/0/CPU0:router(config-mcast)# nsf
OL-
configure
multicast-routing [address-family {ipv4 | ipv6}]
nsf [lifetime seconds]
exit
router pim [address-family {ipv4| ipv6}]
nsf lifetime seconds
exit
router {igmp | mld}
nsf lifetime seconds
end
or
commit
show {igmp | mld} [old-output] nsf
show mfib [ipv4| ipv6] nsf [location node-id]
show mrib [ipv4| ipv6] [old-output] nsf
show pim [ipv4| ipv6] nsf
Purpose
Enters global configuration mode.
Enters multicast routing configuration mode.
• The following multicast processes are started: MRIB,
MFWD, PIM, IGMP, and MLD.
For IPv4, IGMP version 3 is enabled by default; for
•
IPv6, MLD version 1 is enabled by default.
Turns on NSF capability for the multicast routing system.
Multicast Configuration Guide
How to Implement Multicast Routing
MCC-37