Multicast-PIM Bootstrap Router

The Bootstrap Router (BSR) is a mechanism for a router to learn RP information. It ensures that all routers in the PIM domain have the same RP cache as the BSR.
BSR is standard-based protocol available with PIMv2. The information is flooded using PIM messages If the RPF check succeeds, the message is flooded out of all PIM-enabled interfaces until all routers in the domain learn the information.



R2#
ip multicast-routing
!
interface Loopback0
 ip address 2.2.2.2 255.255.255.0
 ip pim sparse-mode
!
interface FastEthernet0/0
 ip address 200.1.1.2 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 ip pim sparse-mode
 duplex auto
 speed auto
!
router ospf 10
 log-adjacency-changes
 network 0.0.0.0 255.255.255.255 area 0
!
ip pim send-rp-announce Loopback0 scope 255
!
R1(config)#ip pim bsr-candidate lo0



R5(config)#
interface Loopback0
 ip address 5.5.5.5 255.255.255.0
 ip pim sparse-mode
 ip igmp join-group 224.10.10.10
end

R1#ping 224.10.10.10
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.10.10.10, timeout is 2 seconds:
Reply to request 0 from 45.1.1.5, 120 ms
Reply to request 0 from 45.1.1.5, 156 ms