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Á¦°³Á¤ÀÏ 2005-12-21 ÃÑÆäÀÌÁö 39
ÇѱÛÇ¥Áظí ATM°ú MPLS ¸Á ¿¬µ¿ - ¼¿¸ðµå »ç¿ëÀÚ Æò¸é ¿¬µ¿
¿µ¹®Ç¥Áظí ATM-MPLS network interworking ? Cell mode user plane interworking
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁØÀº ATM °ú MPLS ÀÇ ¸Á ¿¬µ¿¿¡ ÇÊ¿äÇÑ ±â´ÉÀ¸·Î¼­, ATM ¼¿ ¸ðµå Àü´ÞÀ» À§ÇÑ »ç¿ëÀÚ Æò¸é ¿¬µ¿ ¸ÞÄ¿´ÏÁò°ú ÀýÂ÷ µîÀ» ¼­¼úÇÑ´Ù. ƯÈ÷, º» Ç¥ÁØÀº ATM-MPLS ¼¿ ¸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¿¡ ATM °¡»ó ä³Î ¿¬°á ¶Ç´Â °¡»ó°æ·Î ¿¬°áÀ» Àü´ÞÇÏ°Ô ÇÑ´Ù. ĸ½¶È­´Â ¸ðµç AAL ŸÀÔÀ» Áö¿øÇϸç OAM, RM ¼¿À» Æ÷ÇÔÇÑ´Ù. ¶ÇÇÑ ÇÑ °³ MPLS ÇÁ·¹ÀÓ¿¡ Çϳª ¶Ç´Â ´Ù¼öÀÇ ATM ¼¿À» ĸ½¶È­ ÇÒ ¼ö ÀÖ´Ù.
¿µ¹®³»¿ë¿ä¾à This Recommendation focuses on required functions for network interworking between ATM and MPLS, specifically the user plane interworking mechanisms and procedures for cell mode transport. In particular it specifies a list of requirements,interworking scenarios and interworking encapsulation format and semantics for ATMMPLS cell mode network interworking. This Recommendation enables transport of ATM Permanent Virtual Connections (PVC) or Switched Virtual Connections (SVC) over an MPLS network. The
encapsulation allows ATM Virtual Channel Connections (VCCs) or Virtual Path Connections (VPCs) to be carried within MPLS Label Switched Paths (LSPs). The scope includes support of all AAL types as well as OAM and RM cells, and the ability to encapsulate one or multiple ATM cells in a single MPLS Frame.
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