Exploring the quirks of Network Engineering
Scenario
Basic PIM-SM Setup using BSR to determine the RPs. An access list has been applied it limit the mutlicast groups for which the router can be the RP and the priority and hash mask length have been set. The IP configuration of the interfaces have been left out.
IOS Config
ip multicast-routing
!
interface Loopback0
ip address 9.9.9.9 255.255.255.255
ip pim sparse-mode
description Loopback for RP
!
interface Gi0/0
ip pim sparse-mode
!
interface Gi0/1
ip pim sparse-mode
!
ip pim bsr-candidate Loopback0 30 200
ip pim rp-candidate Loopback0 group-list RESTRICT_RP priority 50
!
ip access-list standard RESTRICT_RP
permit 228.3.3.9
XR Config
interface Loopback0
ipv4 address 9.9.9.9 255.255.255.255
description Loopback for RP
!
multicast-routing
address-family ipv4
interface all enable
!
!
router pim
address-family ipv4
interface GigabitEthernet0/0/0/0
enable
!
interface GigabitEthernet0/0/0/1
enable
!
bsr candidate-bsr 9.9.9.9 hash-mask-len 30 priority 200
bsr candidate-rp 9.9.9.9 group-list RESTRICT_RP priority 50
!
!
ipv4 access-list RESTRICT_RP
10 permit ipv4 host 228.3.3.9 any