MD-VPN Configuration Example 1295MD-VPNConfigurationExampleNetwork requirementsThe network requirements for MD-VPN configuration are listed in the table below:Item Network requirementsMulticast sourcesand receivers■ In VPN a, S 1 is the multicast source, and R 1, R 2 and R 3 arereceivers■ In VPN a, S 2 is the multicast source, and R 4 is a receiver■ Of VPN a, the share-group address is 239.1.1.1, and the addressrange of its switch-group-pool is 225.2.2.0 to 225.2.2.15■ Of VPN b, the share-group address is 239.2.2.2, and the addressrange of its switch-group-pool is 225.4.4.0 to 225.4.4.15PE interfaces andVPN instances theybelong to■ PE 1: Ethernet 0/2 and Ethernet 0/3 belong to VPN instance a;Ethernet 0/1 and Loopback 1 belong to the public instance■ PE 2: Ethernet 0/2 belongs to VPN instance b; Ethernet 0/3 belongsto VPN instance a; Ethernet 0/1 and Loopback 1 belong to thepublic instance■ PE 3: Ethernet 0/2 belongs to VPN instance a; Ethernet 0/3 andLoopback 2 belongs to VPN instance b; Ethernet 0/1 and Loopback1 belong to the public instanceUnicast routingprotocols and MPLS■ Configure OSPF in the public network, and configure RIP betweenthe PE devices and the CE devices.■ Establish BGP peer connections between PE 1, PE 2 and PE 3 viatheir respective Loopback 1 interface and exchange routinginformation between all private networks■ Configure MPLS in the public networkIP multicast routing ■ Enable IP multicast routing on the P router■ Enable IP multicast routing in the public instance on PE 1, PE 2, andPE 3■ Enable IP multicast routing in VPN instance a on PE 1, PE 2, and PE 3■ Enable IP multicast routing in VPN instance b on PE 2 and PE 3■ Enable IP multicast routing on CE a1, CE a2, CE a3, CE b1, and CEb2IGMP ■ Enable IGMP on Ethernet 0/2 of PE 1■ Enable IGMP on Ethernet 0/1 of CE a2, CE a3, and CE b2PIM ■ Enable PIM-SM on all interfaces of the P router■ Enable PIM-SM on all public network interfaces and private networkinterface of PE 1, PE 2, and PE 3■ Enable PIM-SM on all interfaces of CE a1, CE a2, CE a3, CE b1, andCE b2■ Configure Loopback 1 of P as a public network C-BSR and C-RP (towork for all multicast groups)■ Configure Loopback 1 of CE a2 as a C-BSR and C-RP for VPN a (towork for all multicast groups)■ Configure Loopback 2 of PE 3 as a C-BSR and C-RP for VPN b (towork for all multicast groups)
