This feature (IGMPv3 snooping in R-VPLS) extends IGMP snooping to a routed VPLS service. On 7210 SAS, VPLS services that use MPLS uplinks (network mode) support IGMP snooping with IGMP v1 and v2 only. That is, IGMP v3 is not supported, which means that only Layer 2 multicast is supported. To support source-based IP multicast, support for IGMPv3 is needed. To provide source-based IP multicast, support for IGMP snooping v1, v2, and v3 is added to routed VPLS service. The IGMPv3 snooping in R-VPLS feature gives customers an option to use a routed VPLS service without a configured IP interface association to deliver IP multicast traffic in access Layer 2 networks. Users also have an option to configure MVR service.
IGMPv3 snooping in R-VPLS is supported only for IES (not for VPRNs).
For information about IGMP snooping in the context of VPLS, see IGMP snooping in VPLS service.