Return to Verifying Optimized Layer 2 Overlay Multicast with Default MDT for IPv4 and IPv6 Traffic, on page 78 Example5:ConfiguringOptimizedLayer2OverlayMulticastInterworkingwith External Network for IPv4 This example shows how to configure Optimized Layer 2 Overlay Multicast for IPv4 multicast traffic in an EVPN VXLAN fabric that has ingress replication enabled in the underlay and multicast traffic is handedoff to an external network. Figure 8: Topology for Optimized Layer 2 Overlay Multicast Interworking with External Network for IPv4 Traffic The topology shows an EVPN VXLAN fabric, with two spine switches and three VTEPs, connected to an external network.
The source is located in Layer 2 VTEP1 and receivers are located in Layer 2 VTEP 3, the Centralized Gateway, and also located in the external network. Centralized gateway is configured on VTEP 2. VLAN 101 has IGMPv2 and VLAN 102 has IGMPv3 enabled. Rendezvous Point (RP) is located outside the EVPN VXLAN fabric. The following tables provide sample configurations for the devices in this topology. Configuring Optimized Layer 2 Overlay Multicast Example 5: Configuring Optimized Layer 2 Overlay Multicast Interworking with External Network for IPv4 Configuring Optimized Layer 2 Overlay Multicast 110