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Ç¥ÁعøÈ£ TTAE.OT-03.0023/R1 ±¸Ç¥ÁعøÈ£
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ÇѱÛÇ¥Áظí ij¸®¾î ÀÌ´õ³Ý ³×Æ®¿öÅ© ±¸Á¶ ÇÁ·¹ÀÓ¿öÅ© : ÀÌ´õ³Ý ¼­ºñ½º °èÃþ
¿µ¹®Ç¥Áظí Carrier Ethernet Network Architecture Framework: Ethernet Service Layer
Çѱ۳»¿ë¿ä¾à ÀÌ´õ³Ý ¼­ºñ½º °èÃþ(ETH °èÃþÀ̶ó°íµµ ÇÔ)Àº MEF ¼­ºñ½º¸¦ Áö¿øÇÏ°í ¼­ºñ½º ÀÎ½Ä Àü¼Û ±â´ÉÀ» ´ã´çÇÏ´Â MEF ´Ù°èÃþ ±¸Á¶ ÇÁ·¹ÀÓ¿öÅ©ÀÇ ³×Æ®¿öÅ· °èÃþÀÌ´Ù. ETH °èÃþ ±¸Á¶ ÇÁ·¹ÀÓ¿öÅ©´Â ÅäÆú·ÎÁö ¹× ±â´ÉÀû ±¸¼ºÀÇ °üÁ¡¿¡¼­ ÀÌ´õ³Ý ¼­ºñ½º ¸ðµ¨ ±¸¼ºÀ» ³ªÅ¸³»´Â ¼³¸í ¸ðµ¨À» Á¦°øÇÑ´Ù. ÀÌ·¯ÇÑ ÅäÆú·ÎÁö ¹× ±â´ÉÀû ±¸¼ºÀº °¡ÀÔÀÚ, ¼­ºñ½º Á¦°øÀÚ ¹× Áß°£ ³×Æ®¿öÅ© ¿î¿ëÀÚ °£ ³í¸®Àû, ¹°¸®Àû ¿¬°á¼ºÀÇ ±â¼ú Á߸³ÀûÀΠǥÇö(representation)°ú ºÐÇØ(decomposition)¸¦ Á¦°øÇϱâ À§ÇÑ °ÍÀÌ´Ù. ¿¬°á¼º ¸ðµ¨Àº ETH °èÃþ ±â´É ¿ä¼Ò, MEF ÀÎÅÍÆäÀ̽º ±â´ÉÀ» ±¸ÇöÇϱâ À§ÇØ »ç¿ëµÇ´Â ETH °èÃþ ó¸® ¹× Àü¼Û °³Ã¼¿ÍÀÇ °ü°è, ±×¸®°í ±×µé »çÀÌÀÇ »óÈ£ ¿¬°á ±ÔÄ¢À» ±â¼úÇÑ´Ù. ETH °èÃþ ±¸Á¶ ÇÁ·¹ÀÓ¿öÅ©´Â ¶ÇÇÑ »ç¿ëÀÚ-³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º(UNI) ¹× ¿ÜºÎ ³×Æ®¿öÅ©-³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º(ENNI)¿Í °°Àº ¿ÜºÎ ÀÎÅÍÆäÀ̽º(EIs), ³»ºÎ ³×Æ®¿öÅ©-³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º(I-NNIs) ¹× °ü·Ã ÂüÁ¶Á¡°ú °°Àº ³»ºÎ ÀÎÅÍÆäÀ̽º(IIs)¿¡ °ÉÃÄ ETH °èÃþ°ú Àü¼Û °èÃþ(TRAN, Transport Layer) ¹× ÀÀ¿ë °èÃþ(APP, Application Layer) °£ÀÇ »óÈ£ ÀÛ¿ëÀ» ±â¼úÇÑ´Ù. TTAE.OT-03.0023 Ç¥ÁØ°ú ºñ±³ÇÏ¿© ÀÌ Ç¥ÁØ¿¡¼­ °»½ÅµÈ »çÇ×Àº ´ÙÀ½°ú °°´Ù.
- MEF 12.1°ú MEF 12.1.1À» º´ÇÕÇÏ°í, UNI ÅͳΠ¾×¼¼½º(UTA, UNI Tunnel Access) ¼­ºñ½º(MEF 28 [25]), ÀÌ´õ³Ý ¾×¼¼½º ¼­ºñ½º(MEF 33 [27]) ¹× ÀÌ´õ³Ý ¾×¼¼½º ¼­ºñ½º ±â¹Ý °¡»ó ³×Æ®¿öÅ© ÀÎÅÍÆäÀ̽º ÀåÄ¡(vNID, Virtual Network Interface Device)(MEF 43 [28])¸¦ Áö¿øÇÏ´Â ÅäÆú·ÎÁö ¹× ±â´ÉÀû ¸ðµ¨ÀÇ Áö¿ø ¹üÀ§ È®Àå
- ºÎ·Ï I´Â vNID ±â´ÉÀÌ ÀÖ´Â E-¾×¼¼½º ¼­ºñ½º¿Í °ü·ÃµÈ ¼­ºñ½º OAM °³Ã¼ÀÇ ±â´É ¸ðµ¨ °»½Å
¿µ¹®³»¿ë¿ä¾à The Ethernet Services Layer, also referred to as the ETH Layer, is the networking layer in the MEF multi-layer architecture framework responsible for the realization of service-aware transport capabilities in support of MEF specified services. The ETH Layer architecture framework provides the descriptive model to represent Ethernet service model constructs in terms of topological and functional constructs. These topological and functional constructs are intended to provide a technology neutral representation and decomposition of the logical and physical connectivity between Subscribers, the Service Provider(s), and any intermediate Network Operators. The connectivity model is described in terms of the ETH Layer functional elements, their relationships to ETH Layer processing and transport entities used to implement the MEF interface functions, and the interconnect rules among them. The architecture framework also describes the interactions of the ETH Layer with the TRAN and APP Layers across MEF specified External Interfaces (EIs), such as the User-Network Interface (UNI) and the External Network-Network Interface (ENNI), and Internal Interfaces (IIs), such as the Internal Network-to-Network Interfaces (I-NNIs), and their associated reference points. The following provisions describe the update in this revision as compared to TTAE.OT-03.0023.
- ETH Layer architecture merges MEF 12.1 and MEF12.1.1 and expands the scope to cover topological and functional models in support of the UNI Tunnel Access (UTA) service (MEF 28 [25]), Ethernet Access Services (MEF 33 [27]) and virtual NID (vNID) based Ethernet Access (E-Access) services (MEF 43 [28]).
- The Appendix I is also updated with the functional model for the Service OAM entities associated with E-Access Services with vNID functionality.
±¹Á¦Ç¥ÁØ MEF 12.2
°ü·ÃÆÄÀÏ TTAE.OT-03.0023_R1.pdf TTAE.OT-03.0023_R1.pdf            

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