ZTE Corporation Dell Inc. CATR Cisco Systems The MPLS Transport Profile (MPLS-TP) identifiers document [RFC6370] specifies an initial set of identifiers, including the local assigned Z9-Tunnel_Num for co-routed bidirectional LSP, which is not covered by the current specifications, like [RFC3209], [RFC3473]. This document defines Resource ReserVation Protocol Traffic Engnieering (RSVP-TE) identification of MPLS-TP co-routed bidirectional LSP.