This object indicates the Continuity Check (CC) status (ITU-T Y.1731, Appendix I): mismerge - A MEP detects a Mismerge condition when a CCM frame arrives with the correct MEG level, but incorrect MEG ID. unexpectedMep -A MEP detects an Unexpected MEP condition when a CCM frame arrives with the correct MEG level, the correct MEG ID, but an unexpected MEP ID, which includes the MEP's own MEP ID. unexpectedMeLevel - A MEP detects an Unexpected MEG Level condition when a CCM frame arrives with incorrect MEG Level. Incorrect MEG Level is less than the MEP's own MEG level. unexpectedPeriod - A MEP detects an Unexpected Period condition when a CCM frame arrives with a correct MEG level. a correct MEG ID, a correct MEP ID, but with the Period field value different from the MEP's own CCM transmission period. rdi - A MEP detects RDI when it receives a CCM frame with the RDI field set.