MEF 28 MEF 6.1 is a specification document developed by the Technical Committee of the MEF that defines the External Network Network Interface (ENNI) support for UNI Tunnel Access and Virtual UNI.
Abstract:
"This document uses the service attributes and parameters that are defined in the MEF Technical Specification “Ethernet Services Attributes Phase 2” [2] and applies them to create different Ethernet services. This document defines three generic service constructs called Ethernet Service types and specifies their associated service attributes and parameters used to create Point-to-Point, Multipoint-to-Multipoint, and Rooted-Multipoint Ethernet services. This document also defines the requirements for several Ethernet services that use these generic Ethernet Service types. In addition, an informative appendix is provided showing examples of some of the defined services. This document supersedes and replaces MEF 6, Ethernet Services Definitions - Phase 1 [1]The External Network Network Interface (ENNI) is a reference point that describes the interface between two Metro Ethernet Networks (MENs) [Editor: Carrier Ethernet Networks (CENs)] and is intended to support the transparent extension of Ethernet services across multiple Network Operator MENs [Editor: CENs], where each Network Operator MEN [Editor: CEN] is under the control of a distinct administrative authority. This Technical Specification extends the ENNI by defining the UNI Tunnel Access (UTA) which associates a Virtual UNI (VUNI), a remote UNI, and at least one supporting OVC."
