An entry in this table represents an MPLS-TP ME. This entry represents the ME if the source and sink MEPs are defined. An ME is a point-to-point entity. One ME has two such MEPs. A MEG is a group of one or more MEs. One MEG can have two or more MEPs. For a point-to-point LSP, one MEG has one ME, and this ME is associated with two MEPs (source and sink MEPs) within a MEG. Each mplsOamIdMeIndex value denotes the ME within a MEG. In the case of unidirectional point-to-point transport paths, a single unidirectional ME is defined to monitor it, and mplsOamIdMeServicePointer points to a unidirectional point-to-point path. In the case of associated bidirectional point-to-point transport paths, two independent unidirectional MEs are defined to independently monitor each direction, and each mplsOamIdMeServicePointer MIB object points to a unique unidirectional transport path. This has implications for transactions that terminate at or query a MIP, as a return path from a MIP to a source MEP does not necessarily exist within the MEG. In the case of co-routed bidirectional point-to-point transport paths, a single bidirectional ME is defined to monitor both directions congruently, and the mplsOamIdMeServicePointer MIB object points to a co-routed bidirectional point-to-point transport path. In the case of unidirectional point-to-multipoint transport paths, a single unidirectional ME for each leaf is defined to monitor the transport path from the root to that leaf, and each leaf has different transport path information in the mplsOamIdMeServicePointer MIB object. Note that the MplsOamIdMeEntry should be created manually once the MEG is configured for OAM operations.