Animations presented in this video demonstrate MEF mechanisms that enable service providers to match services at an External Network to Network Interface (ENNI). These mechanisms are critical to SLA creation. Concepts presented include: UNI, VLAN, SP-VLAN, EVC, CoS, EIR, CIR, E-LINE, E-LAN, SLA, ENNI, OAM, SOAM, ITU-Y.1731, IEEE 802.1ah, MEP, MIP, CCM and LTM.