• Use the no version to stop the router from acting as a BSR candidate.
• See ip pim bsr-candidate.
ip pim rp-candidate
• Use to define a router as an RP candidate.
• To assign an interface from which the router sends messages, specify an interface type
and specifier, such as atm 3/0. For details about interface types and specifiers, see
Interface Types and Specifiers in JunosE Command Reference Guide.
• Use the group-list keyword to specify an access-list that contains the set of group
prefixes supported by this candidate RP (C-RP). If you do not specify a group-list, the
default is the entire multicast address range.
NOTE: Because BSR has no mechanism for distributing negative entries, you should
not configure negative access-list entries (also called deny access-list entries).
• Use the hold-time keyword to specify the amount of time the BSR keeps an RP in its
C-RP list if the BSR does not receive a C-RP advertisement message. The default value
is 150 seconds.
• Use the priority keyword to specify a priority field value that the C-RP sends to the BSR
in C-RP advertisement messages. In the RP election process, the RP with the lower
priority value is preferred. The default value is 192.
• Use the interval keyword to specify an interval, in the range 1–65535 seconds, at which
the C-RP sends advertisement messages to the BSR. The default value is 60 seconds.
• Example
host1(config)#access-list 1 permit 227.0.0.0 15.255.255.255
host1(config)#access-list 1 permit 228.0.0.0 15.255.255.255
host1(config)#ip pim rp-candidate loopback 1 group-list 1
• Use the no version to stop the router from acting as an RP candidate
• See ip pim rp-candidate.
Migrating to BSR from Auto-RP
Migrating to BSR from auto-RP requires that you upgrade all PIM routers in the domain
to support BSR. However, until all routers are BSR-capable, continue to use auto-RP.
After all routers are BSR-capable, switch from auto-RP to BSR as follows:
1. Use the no ip pim send-rp-discovery scope command to stop PIM in the network
by disabling all auto-RP mapping agents. This results in flooding to an empty map.
2. Reconfigure auto-RP mapping agents as candidate BSRs by using the ip pim
bsr-candidate command.
91Copyright © 2010, Juniper Networks, Inc.
Chapter 3: Configuring PIM for IPv4 Multicast
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