279
Verifying the configuration
# Display the local share-group information of VPN instance a on PE 1.
<PE1> display multicast-domain vpn-instance a share-group local
MD local share-group information for VPN-Instance: a
Share-group: 239.1.1.1
MTunnel address: 1.1.1.1
# Display the local share-group information of VPN instance a on PE 2.
<PE2> display multicast-domain vpn-instance a share-group local
MD local share-group information for VPN-Instance: a
Share-group: 239.1.1.1
MTunnel address: 1.1.1.2
# Display the local share-group information of VPN instance b on PE 2.
<PE2> display multicast-domain vpn-instance b share-group local
MD local share-group information for VPN-Instance: b
Share-group: 239.2.2.2
MTunnel address: 1.1.1.2
# Display the local share-group information of VPN instance a on PE 3.
<PE3> display multicast-domain vpn-instance a share-group local
MD local share-group information for VPN-Instance: a
Share-group: 239.1.1.1
MTunnel address: 1.1.1.3
# Display the local share-group information of VPN instance b on PE 3.
<PE3> display multicast-domain vpn-instance b share-group local
MD local share-group information for VPN-Instance: b
Share-group: 239.2.2.2
MTunnel address: 1.1.1.3
Multi-AS MD VPN configuration
Network requirements
Item Network
requirements
Multicast
sources and
receivers
•
In VPN a, S 1 is a multicast source, and R 2 is a receiver.
•
In VPN b, S 2 is a multicast source, and R 1 is a receiver.
•
For VPN a, the share-group address is 239.1.1.1.
•
For VPN b, the share-group address is 239.4.4.4.
PE interfaces
and VPN
instances they
belong to
•
PE 1: VLAN-interface 11 belongs to VPN instance b. VLAN-interface 12 belongs to
VPN instance a. VLAN-interface 2 and Loopback 1 belong to the public network
instance.
•
PE 2: VLAN-interface 2, VLAN-interface 3, Loopback 1 and Loopback 2 belong to the
public network instance.
•
PE 3: VLAN-interface 3, VLAN-interface 4, Loopback 1 and Loopback 2 belong to the
public network instance.
•
PE 4: VLAN-interface 13 belongs to VPN instance a. VLAN-interface 14 belongs to
VPN instance b. VLAN-interface 4 and Loopback 1 belong to the public network
instance.
Unicast routing
protocols and
•
Configure OSPF separately in AS 100 and AS 200, and configure OSPF between the
PEs and CEs.
•
Establish BGP peer connections between PE 1, PE 2, PE 3 and PE 4 on their