This feature is supported on all 7210 SAS platforms as described in this document, except the 7210 SAS-Sx 1/10GE and 7210 SAS-Sx 10/100GE, and platforms operating in access-uplink mode.
P2MP LSPs signaled using RSVP or mLDP is only supported on 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-R6, and 7210 SAS-R12.
A node running LDP also supports P2MP LSP setup using LDP. By default, it would advertise the capability to a peer node using P2MP capability TLV in LDP initialization message.
This configuration option per interface is provided to restrict/allow the use of interface in LDP multicast traffic forwarding toward a downstream node. The interface configuration option does not restrict/allow exchange of P2MP FEC by way of established session to the peer on an interface, but it would only restrict/allow use of next-hops over the interface. By default, the LDP-P2MP capability is disabled on interface.