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MEF 3.0 Services

MEF 3.0 is a transformational framework for defining, delivering, and certifying agile, assured, and orchestrated communication services across a global ecosystem of automated networks.

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MEF is developing LSO (Lifecycle Services Orchestration) specifications with open APIs to automate the entire lifecycle for services orchestrated across multiple provider networks and multiple technology domains within a provider network. 

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MEF 3.0 Certification

MEF 3.0 certification enables communications service and technology providers to certify compliance with latest releases of MEF 3.0 service and LSO API specifications. MEF 3.0 orchestration-ready services provide the highest level of performance, assurance, and agility available in the market.

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MEF 3.0 Community

MEF is working with many of the world’s leading service and technology providers, open source projects, standards associations, enterprises, universities and research organizations as part of the MEF community to accelerate the implementation and adoption of MEF 3.0 services, as well as expanding the ranks of knowledgeable MEF certified professionals with the skills to design, implement and deliver MEF 3.0 services.

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MEF is the driving force enabling agile, assured, and orchestrated communications services across a global ecosystem of automated networks. MEF 3.0 services are optimized for the digital economy.

MEF in the News

We spotlight videos and articles on the transition to MEF 3.0 services that provide unprecedented user- and application-directed control over network resources and service capabilities.


MEF Committees have published 60 technical specifications and implementation agreements to effect interoperability, increase operational efficiency, and accelerate industry innovation.


MEF Unveils new MEF ProCERT Roadshows to accelerate professionals certifications worldwide...


The MEF Services Certification Program enables service providers to certify that their Carrier Ethernet services comply with the highest industry standards


The MEF Equipment Certification Program enables network equipment manufacturers to certify that their Carrier Ethernet products comply with the relevant MEF specifications...


MEF hosts webinars on the transformational journey to dynamic MEF 3.0 services delivered over automated, virtualized, and interconnected networks powered by LSO, SDN, and NFV.


Our Seminars provide an overview of key MEF 3.0 work areas, including: (1) standardized, orchestrated services, (2) LSO APIs, (3) agile service & technology certification, (4) 5G, and (5) MEF 3.0 Implementation Projects on MEFnet.


MEF is please to host the MEF18 global networking event, 29 October - 2 November 2018, Los Angeles, CA. MEF18 focuses on enabling agile, assured, and orchestrated services for the digital economy.


Specifications published by MEF are intended for general distribution to the public and may be downloaded from this site and reproduced without charge.

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Subscriber Layer 1 Service Attributes

Subscriber Layer 1 Service Attributes

The attributes of a Subscriber Layer 1 Service observable at a Layer 1 User Network Interface (L1 UNI) and from a L1 UNI to a L1 UNI are defined. In addition, a framework for defining specific instances of a Subscriber Layer 1 Service is described.

Managed Access E-Line Service Implementation Agreement

Managed Access E-Line Service Implementation Agreement

This document defines a MAEL Service to allow a SP/SO to monitor services by utilizing a standard set of management capabilities, including SOAM FM, SOAM PM, and Latching Loop-back, in the MAEL Operator’s network. By leveraging management capabilities in the MAEL Operator’s network, a MAEL Service is intended to eliminate the need for the SP/SO to deploy hardware at the Subscriber’s location.

IP Service Attributes for Subscriber IP Services

IP Service Attributes for Subscriber IP Services

This document is the first MEF IP Services specification. It specifies Service Attributes for de-scribing Subscriber IP Services and is consistent with IETF STD 5 [77]. MEF Subscriber IP Services are IP Services described using the Service Attributes and includes private cloud access, Internet access, and managed VPN services. The specification does not discuss Internet peering between ISPs, it focuses on services for unicast traffic. Multicast traffic may covered in future revision. IPv4, IPv6 and “dual stack” services are supported.

Implementation Agreement – Transport Services for Mobile Networks

Implementation Agreement – Transport Services for Mobile Networks

This document identifies the requirements for MEF Ethernet Services and MEF External Interfaces (EIs such as User-Network Interface (UNI)s) for use in Mobile Backhaul networks based on MEF specifications. In addition, new interface and service attributes have been specified where needed. The services and requirements in this Implementation Agreement (IA) are based on the services defined in MEF 6.2 [3], MEF 33[27] and MEF 51 [30] as well as the attributes in MEF 10.3 [7], MEF 26.2 [24] and this IA. The aim is to be flexible to support a wide range of Ethernet service based mobile network deployments.

Network Resource Provisioning Interface Profile Specification

Network Resource Provisioning Interface Profile Specification

The Interface Profile Specification defines the requirements, use cases, realized classes, network resource interfaces and associated operations/parameters, state machines, and sequence diagrams that describe the behavior of the Presto NRP interface.

Network Resource Management - Information Model: Connectivity

Network Resource Management - Information Model: Connectivity

This specification describes the MEF Network Resource Management Information Model (NRM IM). Lifecycle Service Orchestration Reference Architecture (LSO RA, MEF 55 [10]) extends the tra-ditional MEF scope concerning Service Modeling, from a pure view “from outside the network” to cover a range of Operational, Orchestration, and Network Management behaviors, including SDN and NFV paradigms.

This page summarizes current technical projects in development by the MEF Technical Committee.

Driven by Member Contributions

At the heart of the market acceptance of Carrier Ethernet is work of the Technical Committee. This work is driven solely by the contributions of members advancing the work by creating new common standards for implementation of service together with the supporting architectural, management and testing specifications. This has always presented an opportunity for those willing to contribute to advances for the benefit of the industry and their own member companies.

Thousands of Technical Contributions

More than 50 Technical Committee documents have been published based on the many thousands of technical contributions and the dedication of the MEF membership. Contributing members are recognized on the Chairs, Editors and awards pages on the site. Please pull down the "About MEF" menu on the top right of this page.

A detailed Technical Dashboard is available on the MEF Members site Wiki. Currently, around 20 active projects cover updates to existing services, extensions for dynamic cloud service delivery and management, expansion of Mobile Backhaul for additional Small Cell functionality, new interconnect and CE transit services and other services management projects. Member contributions in other areas are strongly encouraged.