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Environment/Versions EOAM Loopback destination address Answer Yes but only for ITU-T implementation. This is a specification issue. IEEE doesn't support multicast destination for Loopback messages. IEEE 802.1ag-2007 3.15 Loopback Message (LBM): A unicast CFM PDU transmitted by a MEP, addressed to a specific MP, in the expectation of receiving an LBR. ITU-T G.8013/Y.1731 7.2 Ethernet Loopback (ETH-LB) Ethernet Loopback function (ETH-LB) is used to verify connectivity of a MEP with a MIP or peer MEP(s). There are two ETH-LB types: Unicast ETH-LB Multicast ETH-LB