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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 28
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Title:
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External Network Network Interface (ENNI) Support for UNI Tunnel Access and Virtual UNI
The External Network Network Interface (ENNI) is a reference point that describes the interface between two Metro Ethernet Networks (MENs) and is intended to support the transparent extension of Ethernet services across multiple Network Operator MENs, where each Network Operator MEN 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.
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2.
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Status of approval:
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Approved in 2010
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3.
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Justification for the specific reference:
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The Ethernet ENNI definitions in MEF 28 supplement MEF 6.2 to form 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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8.
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Any explicit references within that referenced document should also be listed:
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[MEF 10.2] Metro Ethernet Forum, MEF 10.2, Ethernet Services Attributes Phase 2, October 2009./
[MEF 23] Metro Ethernet Forum, MEF 23, Metro Ethernet Forum, Implementation Agreement: Carrier Ethernet Class of Service – Phase 1, June 2009./
[MEF 26] Metro Ethernet Forum, MEF 26, External Network Network Interface (ENNI) – Phase 1, January 2010./
[IEEE 802.1ad] IEEE Standard 802.1ad – Provider Bridges, May 2006./
[IEEE P802.1Qbc] IEEE Draft Standard 802.1Qbc/D1.1 – Virtual Bridged Local Area Network – Amendment: Provider Bridging – Remote Customer Service Interfaces
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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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