The value of tmnxDot1agCfmMepMgmtServiceId specifies the service to
which the virtual MEP is attached.
This object refers directly to
TIMETRA-IEEE8021-CFM-MIB::tmnxDot1agCfmMepSvcId.
This object may be specified during row creation when
tmnxDot1agCfmMepMgmtType is set to the value 'default'.