The following IGMP snooping considerations apply:
Layer-2 multicast is supported in VPLS services.
IGMP snooping is not supported for VCs (vc-ether or vc-vlan) with control-word enabled.
IGMP snooping fast leave processing can be enabled only on SAPs and SDPs. IGMP snooping proxy summarization is enabled by default on SAPS and SDPs and cannot be disabled. Proxy summarization and fast leave processing are supported only on SDPs for which VCs are configured to use vc-type ether and do not have control-word enabled.
IGMP filtering using policies is available on SAPs and SDPs. It is supported only on SDPs for which VCs are configured to use vc-type ether and do not have control-word enabled.
Dynamic learning is only supported on SDPs for which VCs are configured to use vc-type ether and do not have control-word enabled.
SDPs that are configured to use VCs of type vc-vlan that need to be mrouter ports must be configured statically. Multicast group memberships for such SDPs must be configured statically. Dynamic learning is not available for these SDPs.
IGMP snooping is not supported for control-word enabled SDP.
All 7210 SAS platforms as described in this document, except those configured in the access-uplink operating mode, support only IGMPv1 and IGMPv2 snooping in a VPLS service. These platforms do not support IGMPv3 snooping in a VPLS service.
All 7210 SAS platforms as described in this document, except those configured in the access-uplink operating mode, support IGMPv3 in an R-VPLS service only. See R-VPLS and IGMPv3 snooping for more information.