This TruthValue indicates whether the RDI (Remote Defect Indication) error flag has been detected specifically for this remote MEP, meaning this particular far-end peer has signaled it is itself seeing a defect. An admin uses this per-MEP flag to identify precisely which remote site is reporting trouble on its own end when a maintenance association has multiple remote MEPs and only some of them are signaling RDI. For example, out of five remote MEPs under a multipoint service, only one showing cienaCesCfmRemoteMEPRDIErrorFlag set to 'true' would tell the admin to focus troubleshooting specifically on that one site rather than the entire service.