The following figure shows an example of per VNI MDT signaling. When nodes B, C, and D receive IMET routes identifying A as part of flood domain based on VNI, each node establishes a unicast VXLAN tunnel towards A with the appropriate VNI.
VNIs can be configured to core multicast group address relationship for multicast traffic. In this example, two different group addresses are configured for the two VNIs. PIM creates two source specific trees routed at A, one for each group address.
The following figure shows an example of per VNI MDT datapath. The multicast traffic is forwarded within the core based on the MDT group that corresponds to the VLAN and VNI which were signaled with PIM. Traffic for vlan 20 follows a different path than traffic for vlan 10.
