Recommendation ITU-T G.8121/Y.1381 specifies both the functional components and the methodology that should be used in order to specify multi-protocol label switching – transport profile (MPLS-TP) layer network functionality of network elements; it does not specify individual MPLS-TP network equipment as such. Amendment 1: Provides new Annex A “Mapping MPLS-TP packets to OTN using IMP” Replaces Maintenance Communication Channel (MCC) by Management Communication Channel (MCC) Makes editorial corrections in Figure 11-37 to Figure 11-40 (replacing ETH_FP by ETH_AP) and Table 11-17 Updates the publication dates in References