The value of tmnxDot1agCfmMepMgmtFcltyIfIndex specifies, along with
tmnxDot1agCfmMepMgmtFcltyVlanId, the port or interface to which this
MEP is attached.
This object refers directly to
TIMETRA-IEEE8021-CFM-MIB::tmnxDot1agCfmMepFacilityIfIndex.
This object must be specified during row creation when
tmnxDot1agCfmMepMgmtType is set to a 'facility' value.