MEF 10.3 is a specification document developed by the Technical Committee of the MEF that specifies the service attributes of E-Line, E-LAN and E-Tree.
Abstract:
"The attributes of Ethernet Services observable at a User Network Interface (UNI) and from User Network Interface to User Network Interface (UNI to UNI) are defined. In addition, a framework for defining specific instances of Ethernet Services is described. This document supersedes and replaces MEF 10.2 and MEF 10.2.1."