Hub And Spoke With Turnaround: Example - Cisco ASR 9000 Series Configuration Manual

Implementing Layer-3 Multicast Routing on Cisco IOS XR Software
interface all enable
accounting per-prefix
!
!
!
No router pim configuration required
CE3: Where autorp is configured (this is an Cisco IOS Software example, because auto-rp on vrf interface is
not supported in Cisco IOS XR Software)
ip vrf A1-Hub-4
rd 1000:4
route-target export 1000:10
route-target import 1000:10
route-target import 1001:10
!
ip vrf A1-Spoke-2
rd 1001:2
route-target export 1001:10
route-target import 1000:10
!
ip multicast-routing vrf A1-Hub-4
ip multicast-routing vrf A1-Spoke-2
interface Loopback10
ip vrf forwarding A1-Hub-4
ip address 103.10.10.103 255.255.255.255
ip pim sparse-mode
!
ip pim vrf A1-Hub-4 autorp listener
ip pim vrf A1-Hub-4 send-rp-announce Loopback10 scope 32
ip pim vrf A1-Hub-4 send-rp-discovery Loopback10 scope 32

Hub and Spoke with Turnaround: Example

Multicast turnaround mandates a 2-interface connection to the hub site
To configure a CE as a turnaround router, it is connected to its respective PE through two interfaces and each
interface is placed in a separate hub site vrf called hub-x-in vrf and hub-x-out vrf. Hub-x-in vrf carries joins
that come from the receiver spoke site through the Hub Tunnel and hub-x-out vrf will carry the same joins
Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide, Release 6.0.x
Configuring Multicast Hub and Spoke Topology: Example
289