Agenda OAM Overview Ethernet OAM – Protocol Overview IEEE 802.3ah – Link OAM, also known as EFM IEEE 802.3ag – Connectivity Fault Management (CFM) ITU Y.1731 – Fault & Performance Management MEF E-LMI – Configuration Management Ethernet Service Activation Testing OAM Interworking Sample Fault Management Scenarios Ethernet OAM Deployment Use Cases Summary