HP A6600 Configuration Manual page 229

Figure 63 Multicast across VPNs
VPN A
Site 1
Source 1
As shown in
Site 1 of VPN B. MD VPN enables Receiver 1 to receive multicast data from only Source 1, and multicast
across VPNs enables Receiver 2 to receive multicast data from Source 1. The PE that directly connects to
the multicast source is called the "source-side PE"—that is, PE 1, and PEs that directly connect to the sites
of the receivers are called the "receiver-side PEs"—that is, PE 2 and PE 3. To implement multicast across
VPNs, source-side PE configuration and receiver-side PE configuration schemes are available.
Source-side PE configuration
To implement multicast across VPNs, this configuration covers creating VPN instance that the receivers
belongs to on the source-side PE, and configuring a share-group for the VPN instance.
VPN instance A
CE 1 PE 1
Public
Figure 63, Source 1 is in Site 1 of VPN A, Receiver 1 is in Site 2 of VPN A, Receiver 2 is in
VPN instance A
PE 2
P
PE 3
VPN instance B
218
VPN A
Site 2
CE 2 Receiver 1
VPN B
Site 1
CE 3 Receiver 2