This feature is supported on all 7210 SAS platforms as described in this document, except those operating in access-uplink mode.
P2MP LSPs are only supported on 7210 SAS-Mxp, 7210 SAS-R6, 7210 SAS-R12, and 7210 SAS-T.
This feature allows LDP to establish a Hello adjacency and to resolve unicast and multicast FECs over unnumbered LDP interfaces.
This feature also extends the support of lsp-ping, p2mp-lsp-ping, and ldp-treetrace to test an LDP unicast or multicast FEC which is resolved over an unnumbered LDP interface.