Cisco Cisco IOS Software Release 12.2(27)SBC

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Configuring Multicast VPN Extranet Support
  How to Configure Multicast VPN Extranet Support
8
Cisco IOS IP Multicast Configuration Guide
Figure 4
RPF Lookups Using Group-Based VRF Selection Policies
How to Configure Multicast VPN Extranet Support
This section contains the following tasks:
 (required)
 (optional)
 (optional)
Configuring MVPN Extranet Support
Perform this task to configure support for extranet MVPN services. Extranet MVPN services enable 
service providers to distribute IP multicast content originated from a corporate site to the sites of external 
business partners or suppliers. 
Perform one of the following tasks to provide extranet MVPN capabilities:
Prerequisites
This task assumes that you have configured intranet VPN in the source and receiver VPNs. For more 
information about configuring VPNs, refer to the “
” part in the 
Cisco IOS Multiprotocol Label Switching Configuration Guide, Release 12.4.
VPN-Green
VPN-Blue
VPN-Red
Source
S,G2
S,G1
Source
Receiver
170554
PE1
CE1
CE
CE
P
PE3
PE2
MVRF for VPN-Green
MVRF for VPN-Red
MVRF for VPN-Blue
MVRF for VPN-Blue
MVRF for VPN-Red
Based on the VRF selection policies 
configured, the joins are sent to VPN-Red 
and VPN-Blue for groups G1 and G2, 
respectively
S,G1 and S,G2 joins 
are sent to PE1 in the
context of VPN-Green