This read-create MacAddress object, applicable only to point-to-multipoint probes per its description, identifies the destination MEP by its MAC address, which becomes the destination MAC for test frames when esaProbeDestinationMepType is set to 'macaddress'. An administrator relies on this as the only way to reach the remote MEP when the CC (continuity check) protocol is not enabled between source and destination. For example, in a network where CFM continuity check hasn't been configured, an operator must populate esaProbeDestinationMepMacAddr directly with the remote device's MAC address to run the probe at all.