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Ç¥ÁعøÈ£ TTAS.IF-RFC3035 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2003-06-20 ÃÑÆäÀÌÁö 24
ÇѱÛÇ¥ÁØ¸í ·¹ÀÌºí ºÐ¹è ÇÁ·ÎÅäÄÝ(LDP)°ú ºñµ¿±â Àü¼Û ¸ðµå(ATM) ±â¹Ý °¡»ó ä³Î ½ºÀ§ÄªÀ» »ç¿ëÇÏ´Â ¸ÖƼÇÁ·ÎÅäÄÝ ·¹ÀÌºí ±³È¯(MPLS) ±Ô°Ý
¿µ¹®Ç¥Áظí MPLS using LDP and ATM VC Switching
Çѱ۳»¿ë¿ä¾à MPLS(Multiprotocol Label Switching - MPLS) ±¸Á¶ [1]´Â ATM(Asynchronous Transfer Mode) ½ºÀ§Ä¡°¡ ·¹ÀÌºí ½ºÀ§Äª ¶ó¿ìÅÍ (Label Switching Routers)·Î¼­ »ç¿ëµÉ ¹æ¹ý¿¡ ´ëÇØ ³íÀÇÇÑ´Ù. ATM ½ºÀ§Ä¡´Â ³×Æ®¿öÅ© °èÃþ ¶ó¿ìÆà ¾Ë°í¸®Áò(¿¹¸¦ µé¾î, OSPF(Open Shortest Path First), IS-IS(Intermedicate System to Intermediate System)µî)À» ±¸µ¿½ÃÅ°°í, µ¥ÀÌÅÍ Àü¼Û(forwarding)Àº ÀÌ ¶ó¿ìÆà ¾Ë°í¸®ÁòÀÇ °á°ú¸¦ ±Ù°£À¸·Î ÇÑ´Ù. ATM ƯÀ¯ÀÇ ¶ó¿ìÆÃÀ̳ª ¾îµå·¹½Ì(addressing)Àº ÇÊ¿ä·Î ÇÏÁö ¾Ê´Â´Ù. ÀÌ·± ¹æ½ÄÀ¸·Î »ç¿ëµÇ´Â ATM ½ºÀ§Ä¡´Â ATM-LSR (Label Switching Router)·Î ¾Ë·ÁÁ® ÀÖ´Ù. ÀÌ Ç¥ÁØÀº ATM-LSRµé °£¿¡ ·¹À̺íÀ» ¹èÆ÷ÇÏ´Â ÀýÂ÷¸¦ ´õ ÀÚ¼¼È÷ »ó¼úÇÔÀ¸·Î½á [1]°ú [2]ÀÇ °ü·ÃµÈ ºÎºÐÀ» È®ÀåÇÏ°í ¸í¹éÇÏ°Ô ÇÑ´Ù. À̶§ ÀÌ·¯ÇÑ ·¹À̺íÀº Æ÷¿öµù µ¿µî Ŭ·¡½º(Forwarding Equivalence Classes - FECs, [1] Âü°í)¸¦ Ç¥½ÃÇÏ¸ç °æ·Î´Â ³×Æ®¿öÅ© °èÃþ ¶ó¿ìÆà ¾Ë°í¸®Áò¿¡ ÀÇÇØ È© ¹ÙÀÌ È©(hop-by-hop)¿¡ ±â¹ÝÇÏ¿© °áÁ¤µÈ´Ù. ÀÌ Ç¥ÁØÀº ¶ÇÇÑ ·¹À̺íÀÌ ºÙÀº ÆÐŶÀ» ATM-LSR·Î º¸³»°Å³ª ¹ÞÀ» ¶§ »ç¿ëµÇ´Â MPLS ÀÎĸ½¶·¹À̼Ç(encapsulation)À» »ó¼úÇϸç ÀÌ·¯ÇÑ Ãø¸é¿¡¼­ [3]ÀÇ ¹®¼­
¿µ¹®³»¿ë¿ä¾à This standard aims to summarize the IETF RFC3035. The Multiprotocol Label Switching (MPLS) Architecture [1] discusses a way in which Asynchronous Transfer Mode (ATM) switches may be used as Label Switching Routers. The ATM switches run network layer routing algorithms (such as Open Shortest Path First (OSPF), Intermediate System to Intermediate System (IS-IS), etc.), and their data forwarding is based on the results of these routing algorithms. No ATM-specific routing or addressing is needed. ATM switches used in this way are known as ATM-LSRs (Label Switching Routers). This standard extends and clarifies the relevant portions of [1] and [2] by specifying in more detail the procedures which to be used when distributing labels to or from ATM-LSRs, when those labels represent Forwarding Equivalence Classes (FECs, see [1]) for which the routes are determined on a hop-by-hop basis by network layer routing algorithms. This standard also specifies the MPLS encapsulation to be used when
±¹Á¦Ç¥ÁØ IETF RFC 3035
°ü·ÃÆÄÀÏ TTAS_IF-RFC3035.zip TTAS_IF-RFC3035.zip            

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