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1.
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Clear description of the referenced document:
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Name:
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MEF 20
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Title:
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MEF 20 - User Network Interface (UNI) Type 2 Implementation Agreement
This document specifies an Implementation Agreement (IA) for MEF User to Network Interface (UNI) Type 2. This Implementation Agreement adds new functionalities to MEF UNI Type 1 [MEF13], such as E-LMI based on [MEF16], Link OAM based on clause 57 of [IEEE 802.3], Service OAM based on [ITU-T Y.1731] and [IEEE 802.1ag] and Protection using Link Aggregation based on clause 43 of [IEEE 802.3].
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2.
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Status of approval:
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Approved in 2008
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3.
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Justification for the specific reference:
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The Ethernet service UNI in MEF 20 forms the basis of this Recommendation.
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4.
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Current information, if any, about IPR issues:
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No known issues.
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5.
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Other useful information describing the "Quality" of the document:
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Commonly referenced all over the world for metro Ethernet services.
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6.
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The degree of stability or maturity of the document:
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Commonly referenced all over the world for metro Ethernet services.
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7.
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Relationship with other existing or emerging documents:
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MEF 20 is part of a set of MEF Technical Specifications branded as "Carrier Ethernet 2.0"
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8.
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Any explicit references within that referenced document should also be listed:
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MEF 11 Metro Ethernet Forum UNI Requirements and Frame work, Nov 2004/
MEF 13 Metro Ethernet Forum, UNI Type 1, Nov 2005/
MEF 16 Metro Ethernet Forum, Ethernet Local Management Interface (E-LMI), Jan 2006/
IEEE 802.1ag IEEE Virtual Bridged Local Area Networks, Amendment 5:Connectivity Fault Management, 2007/
IEEE 802.3 IEEE, Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications, Dec 2005/
IEEE 802.3as IEEE, IEEE, Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications Amendment: frame format extensions, 2006/
MEF 10.1 Metro Ethernet Forum, Ethernet Service Attributes, Phase 2/
ITU-T Y.1731 ITU-T, OAM Functions and Mechanisms for Ethernet based networks, 2006
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9.
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Qualification of
MEF:
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The MEF was recognized under the provisions of ITU-T Recommendation A.5 on 24 September 2002. Qualifying information is on file with TSB.
9.5 The IPR policy of the MEF may be found in Article 10 of the MEF Bylaws which are available on the MEF public WEB site metroethernetforum.org.
9.6 All MEF Technical Specifications, Implementation Agreements, and Test Specifications are approved by an electronic letter ballot of all MEF members. For a MEF document to pass an electronic letter ballot at least a quorum of members (defined by the MEF bylaws as 1/3 of the MEF membership) must vote Yes or No. In addition, of the Yes plus No votes at least 75% of the votes must be Yes.
9.7 All published MEF documents are available for download free of charge in PDF or WORD format from the MEF public WEB site www.metroethernetforum.org .
9.8 Each revision of a given MEF document has a different MEF number.
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10.
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Other (for any supplementary information):
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None.
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