MEF 26.2 External Network Network Interface (ENNI) and Operator Service Attributes

2016 Aug

Primary Resource for: Carrier Ethernet

Product Portfolio: Carrier Ethernet, Operator Carrier Ethernet

Standard Type: Service Attributes


This document contains specifications for interconnecting Operator CENs in order to support MEF Forum Ethernet Services.


  • The requirements at the ENNI reference point as well as the interface functionality in sufficient detail to ensure interoperability between two Operator CENs.
  • The connectivity attributes UNI to UNI, UNI to ENNI, and ENNI to ENNI such that multiple Operator CENs can be interconnected and the Ethernet services and Service Attributes in MEF 6.2, MEF 10.3, and MEF 51 can be realized.
  • The concept of the Super Operator which allows an Operator, acting as a Super Operator, to combine multiple Operator CENs together and make them appear as a single Operator CEN to a Service Provider or another Super Operator.

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