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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 140
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Title:
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Elastic Ethernet Services & Cloud Connectivity
This document identifies the requirements for MEF Ethernet Services and MEF External Interfaces (EIs such as UNIs) as well as a management interface for use in support of Cloud Services. This support includes elastic behavior of Ethernet Service attributes that can be modified during the lifetime of the service. Support for Cloud Services falls into two broad categories: 1) interconnection of a Cloud Provider's data centers (referred to as Data Center Interconnect - DCI), and 2) interconnection of Cloud Consumers (e.g. enterprises) and Cloud Provider data centers (referred to as Data Center Access - DCA). The services and requirements in this Implementation Agreement are based on the services defined in MEF 6.2 and the attributes defined in MEF 10.3 and this IA. Support of Cloud Services is addressed for a single Cloud Provider (CP) using one or more Carrier Ethernet Networks (CENs) and point-to-point Ethernet Services.
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2.
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Status of approval:
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Approved in 2025
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3.
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Justification for the specific reference:
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MEF 140 specifies broadband access E-Line and E-LAN services.
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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 carrier 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 carrier 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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[1] 3GPP TR 21.917, 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Release 17 Description; Summary of Rel-17 Work Items, January 2023. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). All rights reserved./
[2] Broadband Forum TR-176, ADSL2Plus Configuration Guidelines for IPTV, September 2008. Copyright © The Broadband Forum. All Rights Reserved./
[3] Cable Television Laboratories CM-SP-MULPIv3.1-I25-230419, Data-Over-Cable Service Interface Specifications DOCSIS® 3.1 – MAC and Upper Layer Protocols Interface Specification, April 2023. Copyright © Cable Television Laboratories, Inc. 2013–2023./
[4] Cable Television Laboratories CM-SP-MULPIv4.0-I07-230503, Data-Over-Cable Service Interface Specifications DOCSIS® 4.0 – MAC and Upper Layer Protocols Interface Specification, May 2023. Copyright © Cable Television Laboratories, Inc. 2019–2023./
[5] DSL Forum TR-144, Broadband Multi-Service Architecture & Framework Requirements, August 2007. Copyright © 2007 Digital Subscriber Line Forum. All Rights Reserved./
[6] ETSI/3GPP TS23.203, Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Policy and charging control architecture v15.4.0, September 2018. Copyright © 2018 ETSI. All Rights Reserved./
[7] ETSI EN 301 545-2, Digital Video Broadcasting (DVB); Second Generation DVB, Interactive Satellite System (DVB-RCS2); Part 2: Lower Layers for Satellite standard, V1.4.1, January 2024. © ETSI 2024. © European Broadcasting Union. All rights reserved./
[8] IEEE Std 802.1Q™-2018, Bridges and Bridged Networks, May 2018. Copyright © 2018 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved./
[9] IEEE Std 802.3™-2012, IEEE Standard for Ethernet, August 2012. Copyright © 2012 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved./
[10] IEEE Std 802.3™-2015, IEEE Standard for Ethernet, September 2015. Copyright © 2016 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved./
[11] IEEE Std 802.3™-2018, IEEE Standard for Ethernet, June 2018. Copyright © 2018 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved./
[12] IETF RFC 2119, Key words for use in RFCs to Indicate Requirement Levels, March 1997/
[13] IETF RFC 4761, Virtual Private LAN Service (VPLS) Using BGP for Auto-Discovery and Signaling, January 2007. Copyright © The IETF Trust (2007)./
[14] IETF RFC 4762, Virtual Private LAN Service (VPLS) Using Label Distribution Protocol (LDP) Signaling, January 2007. Copyright © The IETF Trust (2007)./
[15] IETF RFC 7348, Virtual eXtensible Local Area Network (VXLAN): A Framework for Overlaying Virtualized Layer 2 Networks over Layer 3 Networks, August 2014. Copyright © 2014 IETF Trust and the persons identified as the document authors. All rights reserved./
[16] IETF RFC 8174, Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words, May 2017. Copyright © 2017 IETF Trust and the persons identified as the document authors. All Rights Reserved./
[17] ISO/IEC 7498-1, Information technology – Open Systems Interconnection – Basic Reference Model: The Basic Model, June 1996. © ISO/IEC 1994./
[18] ITU-T G.8013/Y.1731, Operation, administration and maintenance (OAM) functions and mechanisms for Ethernet-based networks, August 2015. Copyright © ITU 2016. All Rights Reserved./
[19] ITU-T G.983.1, Broadband optical access systems based on Passive Optical Networks (PON), January 2005. Copyright © ITU 2005. All Rights Reserved./
[20] ITU-T G.984.1, Gigabit-capable passive optical networks (GPON): General characteristics, March 2008. Copyright © ITU 2009. All Rights Reserved./
[21] ITU-T G.987.1, 10-Gigabit-capable passive optical networks (XG-PON): General requirements, March 2016. Copyright © ITU 2016. All Rights Reserved./
[22] MEF 4, Metro Ethernet Network Architecture – Part 1: Generic Framework, May 2004/
[23] MEF 6.2, EVC Ethernet Services Definitions Phase 3, August 2014/
[24] MEF 6.3, Subscriber Ethernet Services Definitions, November 2019/
[25] MEF 10.3, Ethernet Services Attributes Phase 3, October 2013/
[26] MEF 10.4, Ethernet Service Attributes – Phase 4, December 2018/
[27] MEF 26.2, External Network Network Interfaces (ENNI) and Operator Service Attributes, August 2016/
[28] MEF 30.1, Service OAM Fault Management Implementation Agreement: Phase 2, April 2013/
[29] MEF 45.1, Layer 2 Control Protocols in Ethernet Services, December 2018/
[30] MEF 51.1, Operator Ethernet Service Definitions, December 2018/
[31] MEF 61.1, IP Service Attributes, May 2019/
[32] MEF 61.1.1, Amendment to MEF 61.1: UNI Access Link Trunks, IP Addresses, and Mean Time to Repair Performance Metric, July 2022
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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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