Cisco CRS Series Configuration Manual page 180

Configuring Multicast Hub and Spoke Topology: Example
auto-rp relay vrf A1-Hub-4
!
!
!
multicast-routing
vrf A1-Hub-4
address-family ipv4
log-traps
rate-per-route
interface all enable
accounting per-prefix
!
!
!
multicast-routing
vrf A1-Spoke-2
address-family ipv4
log-traps
rate-per-route
interface all enable
accounting per-prefix
!
!
!
multicast-routing
vrf A1-Hub-Tunnel
address-family ipv4
mdt data 226.202.1.0/24 threshold 10
log-traps
mdt default ipv4 226.202.0.0
rate-per-route
accounting per-prefix
!
!
!
multicast-routing
vrf A1-Spoke-Tunnel
Cisco IOS XR Multicast Configuration Guide for the Cisco CRS Router, Release 5.2.x
170
Implementing Multicast Routing on Cisco IOS XR Software