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Á¦°³Á¤ÀÏ 2005-12-21 ÃÑ ÆäÀÌÁö 36
ÇÑ±Û Ç¥Áظí ATM°ú MPLS ¸Á ¿¬µ¿ – ÇÁ·¹ÀÓ ¸ðµå »ç¿ëÀÚ Æò¸é ¿¬µ¿
¿µ¹® Ç¥Áظí ATM-MPLS network interworking – Frame mode user plane interworking
ÇÑ±Û ³»¿ë¿ä¾à º» Ç¥ÁØÀº ATM°ú MPLSÀÇ ¸Á ¿¬µ¿¿¡ ÇÊ¿äÇÑ ±â´ÉÀ¸·Î¼­, AAL ŸÀÔ 5 ÇÁ·ÎÅäÄÝ µ¥ÀÌÅÍ À¯´ÏÆ®(PDU)¿Í ¼­ºñ½º µ¥ÀÌÅÍ À¯´ÏÆ®(SDU) Àü´ÞÀ» À§ÇÑ »ç¿ëÀÚ Æò¸é ¿¬µ¿ ¸ÞÄ¿´ÏÁò°ú ÀýÂ÷ µîÀ» ¼­¼úÇÑ´Ù. ƯÈ÷, º» Ç¥ÁØÀº ATM-MPLS AAL ŸÀÔ 5 PDU¿Í SDU ¸ðµå ¸Á ¿¬µ¿¿¡ ÇÊ¿äÇÑ ¿ä±¸»çÇ×, ¿¬µ¿ ½Ã³ª¸®¿À, ¿¬µ¿ ĸ½¶È­ Æ÷¸Ë, ±×¸®°í Àǹ̷Ð(semantics)¸¦ Á¤ÀÇÇÑ´Ù.
º» Ç¥ÁØÀº MPLS ¸Á¿¡¼­ ATM ¿µ±¸ °¡»ó ¿¬°á ¶Ç´Â ±³È¯ °¡»ó ¿¬°áÀ» Àü´ÞÇϱâ À§ÇÑ °ÍÀÌ´Ù. ĸ½¶È­´Â MPLS ·¹ÀÌºí ±³È¯ °æ·Î(LSP) ³»ºÎ¿¡ ÇϳªÀÇ AAL ŸÀ̺ñ 5 CPCS PDU ¶Ç´Â SDU¸¦ Àü´ÞÇÏ°Ô ÇÑ´Ù. ĸ½¶È­´Â ¸ðµç AAL ŸÀÔ 5À» Áö¿øÇϸç OAM, RM ¼¿À» Æ÷ÇÔÇÑ´Ù
¿µ¹® ³»¿ë¿ä¾à This Recommendation focuses on the functions required for network interworking between ATM and MPLS, specifically the user plane interworking mechanisms and procedures for the AAL type 5 protocol data unit (PDU) and service data unit (SDU) transport modes. In particular, it specifies a list of requirements, interworking scenarios and interworking encapsulation formats and semantics for ATM-MPLS AAL type 5 PDU and SDU mode network interworking.
This Recommendation enables transport of ATM PVC or SVC connections over an MPLS network. The encapsulation allows one AAL type 5 CPCS PDU or SDU to be carried within a single MPLS label switched path (LSP).
The scope includes support of AAL type 5, transport of OAM and RM cells.
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