Superseded by MEF 78.1 Download Status SUPERSEDED Source(s) LSO Contributors AmdocsCoriant (as Infinera)Ericsson ABHuawei Technologies PCCW Global Limited Verizon Related Page: MEF 72 - Network Resource Model L1 Connectivity Service (Optical Transport) Page: MEF 78 - MEF Core Model (MCM) Page: MEF 78.1 - MEF Core Model (MCM) Page: MEF 86 - LSO Presto Service OAM Interface Profile Specification