This feature is supported for the following services:
LDP VPLS with or without BGP-AD
BGP VPLS (BGP multihoming for inter-AS BGP-VPLS services is not supported)
mix of the above
PBB B-VPLS on BCB
PBB I-VPLS (see IEEE 802.1ah Provider Backbone Bridging for more information)
The following access objects can be associated with MH Site:
SAPs
SDP bindings (pseudowire object), both mesh-SDP and spoke-SDP
Split Horizon Group
Under the SHG we can associate either one or multiple of the following objects: SAPs, pseudowires (BGP VPLS, BGP-AD, provisioned and LDP-signaled spoke-SDP and mesh-SDP)