Use this procedure to enable IP Multicast over Fabric Connect for a Layer 3 VSN. The default is disabled.
To configure a VLAN for IP Shortcuts with IP Multicast over Fabric Connect, see Configure IP Multicast over Fabric Connect on a VLAN Within the GRT.
Note
On DvR Controllers in a DvR domain, you must manually configure IP multicast over Fabric Connect on Layer 3 VSNs (VRFs). This configuration is then automatically pushed to the Leaf nodes in the DvR domain.
You must configure the required SPBM and IS-IS infrastructure, which includes the creation of SPBM B-VLANs.
You must configure a VRF and an IP VPN instance with an I-SID configured under it on the switch. The IP VPN does not need to be enabled for Layer 3 VSN multicast to function.
You must enable IP Multicast over Fabric Connect globally.
If there is no IP interface on the VLAN, then you create one. (The IP interface must be in the same subnet as the IGMP hosts that connect to the VLAN).
You must enable MVPN for the particular VRF.
You must configure VLANs to turn on the service on each VLAN with in the VRF on which the service is required. You can turn it on under the VLAN context or the brouter context.
If you only want to use IP Multicast over Fabric Connect, you do not need to enable the Layer 3 VSN or redistribute unicast routes into or out of IS-IS. IP Multicast over Fabric Connect routing does not depend on unicast routing (for Layer 3 VSN). This allows for you to more easily migrate from a PIM environment to IP Multicast over Fabric Connect. You can migrate a PIM environment to IP Multicast over Fabric Connect first and then migrate unicast separately or not at all.
The switch only supports IPv4 address with IP Multicast over Fabric Connect.
Note
You cannot enable IP PIM when IP Multicast over Fabric Connect is enabled on the VLAN.