Cisco ASR 9000 Series Software Manual page 139

Implementing Layer-3 Multicast Routing on Cisco IOS XR Software
Configuring RPL Policies in Receiver VRFs on Source PE Routers to Propagate Joins to a Source VRF: Example
In addition to configuring route targets , RPL policies can be configured in receiver VRFs on a ource PE
router to propagate joins to a specified source VRF. However, this configuration is optional.
The configuration below shows a policy in which the receiver VRF can select either "provider_vrf_1" or
"provider_vrf_2" to propagate PIM joins. Provider_vrf_1 will be selected if the rendezvous point (RP) for a
multicast stream is 201.22.22.201, while provider_vrf_2 will be selected if the RP for a multicast stream is
202.22.22.201.
As an alternative, you can configure a multicast group-based policy as shown in the
in Receiver VRFs to Propagate Joins to a Source VRF: Example, on page
route-policy extranet_streams_from_provider_rp
if source in (201.22.22.201) then
set rpf-topology vrf provider_vrf_1
else if source in (202.22.22.201) then
set rpf-topology vrf provider_vrf_2
else
pass
endif
end-policy
!
router pim vrf receiver_vrf address-family ipv4
rpf topology route-policy extranet_streams_from_provider_rp
rp-address 201.22.22.201 grange_227
rp-address 202.22.22.201 grange_228
!
Configuring Multicast Hub and Spoke Topology: Example
These examples describe two ways to configure Multicast Hub and Spoke:
Figure 12: Example for CE1 PE1PE3 CE3Multicast Hub and Spoke Topology
CE1------------------ PE1 ------------------------------------------------ PE3 ------------------ CE3
CE1, PE1, and PE3 are all on Cisco IOS XR Software, CE3 has Cisco IOS Software in order to configure
autorp on VRF interface. For information about configuring the CE router, using Cisco IOS software, see the
appropriate Cisco IOS software documentation.
Hub and Spoke Non-Turnaround Configuration: Example
A1-Hub-1 (bsr RP) A1-Hub-4 (auto-rp RP)
A1-Spoke-3
No turnaround case with bsr and autorp relay
PE1:
vrf A1-Hub-1
address-family ipv4 unicast
import route-target
1000:10
Cisco ASR 9000 Series Aggregation Services Router Multicast Configuration Guide, Release 5.1.x
Configuring Multicast Hub and Spoke Topology: Example
Configuring RPL Policies
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