Cisco CRS Series - Configuring Auto-RP to Automate Group-To-RP Mappings

PurposeCommand or Action
(Optional) Permits multicast group 239.1.1.0 0.0.255.255 for
the “rp-access” list.
[sequence-number] permit source [source-wildcard]
Example:
RP/0/RP0/CPU0:router(config-ipv4-acl)# permit
Step 7
The commands in Step 6, on page 91 and Step 7, on
page 92 can be combined in one command string like
this: ipv4 access-list rp-access permit 239.1.1.0
0.0.255.255.
Tip
239.1.1.0 0.0.255.255
commit
Step 8
Configuring Auto-RP to Automate Group-to-RP Mappings
This task configures the Auto-RP mechanism to automate the distribution of group-to-RP mappings in your
network. In a network running Auto-RP, at least one router must operate as an RP candidate and another
router must operate as an RP mapping agent.
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.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enters PIM configuration mode, or PIM address-family configuration
submode.
router pim [address-family ipv4]
Example:
RP/0/RP0/CPU0:router(config)# router pim
Step 2
Configures an RP candidate that sends messages to the
CISCO-RP-ANNOUNCE multicast group (224.0.1.39).
auto-rp candidate-rp type instance scope
ttl-value [group-list access-list-name] [interval
seconds] bidir
Step 3
•
This example sends RP announcements out all PIM-enabled
interfaces for a maximum of 31 hops. The IP address by which
Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
92
Implementing Multicast Routing on Cisco IOS XR Software
Configuring Auto-RP to Automate Group-to-RP Mappings