MVR VPLS
Also known as a multicast VPLS, an MVR VPLS distributes multicast traffic through a network. An MVR VPLS also acts as a user VPLS when it contains SAPs that receive multicast traffic.
MVR on VPLS allows multiple subscriber hosts to remain in separate VLANs while sharing a single multicast VPLS. The 7450 ESS uses MVR on VPLS and IGMP snooping to provide BTV services.