Cisco XR12000 Series Configuration Manual page 59

Implementing Multicast Routing on Cisco IOS XR Software
SUMMARY STEPS
1. configure
2. router pim [address-family ipv4]
3. auto-rp candidate-rp type instance scope ttl-value [group-list access-list-name] [interval seconds] bidir
4. auto-rp mapping-agent type number scope ttl-value [interval seconds]
5. exit
6. ipv4 access-list name
7. [sequence-number] permit source [source-wildcard]
8. Use the commit or end command.
DETAILED STEPS
Command or Action
Step 1 configure
Example:
RP/0/0/CPU0:router# configure
Step 2 router pim [address-family ipv4]
Example:
RP/0/0/CPU0:router(config)# router pim
Step 3 auto-rp candidate-rp type instance scope
ttl-value [group-list access-list-name]
[interval seconds] bidir
Example:
RP/0/0/CPU0:router(config-pim-ipv4)#
auto-rp candidate-rp
GigabitEthernet0/1/0/1 scope 31
group-list 2 bidir
Step 4 auto-rp mapping-agent type number scope
ttl-value [interval seconds]
Example:
RP/0/0/CPU0:router(config-pim-ipv4)#
auto-rp mapping-agent
GigabitEthernet0/1/0/1 scope 20
OL-30405-02
Purpose
Enters global configuration mode.
Enters PIM configuration mode, or PIM address-family configuration
submode.
Configures an RP candidate that sends messages to the
CISCO-RP-ANNOUNCE multicast group (224.0.1.39).
• This example sends RP announcements out all PIM-enabled
interfaces for a maximum of 31 hops. The IP address by which the
router wants to be identified as an RP is the IP address associated
with GigabitEthernet interface 0/1/0/1.
• Access list 2 designates the groups this router serves as RP.
• If you specify group-list, you must configure the optional access-list
command.
Configures the router to be an RP mapping agent on a specified interface.
• After the router is configured as an RP mapping agent and
determines the RP-to-group mappings through the
CISCO-RP-ANNOUNCE (224.0.1.39) group, the router sends the
mappings in an Auto-RP discovery message to the well-known
group CISCO-RP-DISCOVERY (224.0.1.40).
• A PIM DR listens to this well-known group to determine which RP
to use.
Cisco IOS XR Multicast Configuration Guide for the Cisco XR12000 Series Router, Release 5.1.x
Configuring Auto-RP to Automate Group-to-RP Mappings
49