The value of tmnxOamPmCfgSessEthRemoteMepId specifies the remote Ethernet Maintenance association End Point (MEP) identifier to be used by the specified session. Zero indicates a value has not been configured. A non-zero unicast destination MAC address is required in each test frame sent by each test belonging to the specified session. The destination MAC address can be specified directly (using tmnxOamPmCfgSessEthDestMacAddr), or indirectly (using this object). Exactly one of tmnxOamPmCfgSessEthDestMacAddr and tmnxOamPmCfgSessEthRemoteMepId must be assigned a non-default value. If this object is assigned a non-default value, SROS periodically searches TIMETRA-IEEE8021-CFM-MIB::tmnxDot1agCfmLearnedRmtMacTable to find the destination MAC address to use for each test belonging to this session. The search key is as follows: tmnxOamPmCfgSessEthSrcMdIndex, tmnxOamPmCfgSessEthSrcMaIndex, tmnxOamPmCfgSessEthSrcMepId, tmnxOamPmCfgSessEthRemoteMepId. If a search fails to find a destination MAC address, no test frames will be sent for the tests belonging to this session (at least until the next search is conducted). Using tmnxOamPmCfgSessEthRemoteMepId (instead of tmnxOamPmCfgSessEthDestMacAddr) has the following advantage: if the hardware hosting a test's far end is replaced (meaning a new destination MAC address is present), the test does not need to be reconfigured.