Cisco ASR 9000 Series Software Manual page 113

Implementing Layer-3 Multicast Routing on Cisco IOS XR Software
GigabitEthernet0/3/0/0) that is sent to groups 224.0.1.39 and 224.0.1.40.
!
router pim
auto-rp mapping-agent loopback 2 scope 32 interval 30
auto-rp candidate-rp loopback 2 scope 15 group-list 111 interval 30
multicast-routing
interface GigabitEthernet0/3/0/0
boundary 222
!
Inheritance in MSDP on Software: Example
The following MSDP commands can be inherited by all MSDP peers when configured under router MSDP
configuration mode. In addition, commands can be configured under the peer configuration mode for specific
peers to override the inheritance feature.
• connect-source
• sa-filter
• ttl-threshold
If a command is configured in both the router msdp and peer configuration modes, the peer configuration
takes precedence.
In the following example, MSDP on Router A filters Source-Active (SA) announcements on all peer groups
in the address range 226/8 (except IP address 172.16.0.2); and filters SAs sourced by the originator RP
172.16.0.3 to 172.16.0.2.
MSDP peers (172.16.0.1, 172.16.0.2, and 172.17.0.1) use the loopback 0 address of Router A to set up peering.
However, peer 192.168.12.2 uses the IPv4 address configured on the GigabitEthernet interface to peer with
Router A.
Router A
!
ipv4 access-list 111
10 deny ip host 172.16.0.3 any
20 permit any any
!
ipv4 access-list 112
10 deny any 226.0.0.0 0.255.255.255
30 permit any any
!
router msdp
connect-source loopback 0
sa-filter in rp-list 111
sa-filter out rp-list 111
peer 172.16.0.1
!
peer 172.16.0.2
sa-filter out list 112
!
peer 172.17.0.1
!
peer 192.168.12.2
connect-source GigabitEthernet0/2/0/0
!
Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide, Release 5.1.x
Inheritance in MSDP on Software: Example
113