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Ç¥ÁعøÈ£ | TTAE.IF-RFC3618 | ±¸Ç¥ÁعøÈ£ | |
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Á¦°³Á¤ÀÏ | 2005-12-21 | ÃÑÆäÀÌÁö | 34 |
ÇѱÛÇ¥Áظí | ¸ÖƼij½ºÆ® ¼Ò½º ¹ß°ß ÇÁ·ÎÅäÄÝ | ||
¿µ¹®Ç¥Áظí | Multicast Source Discovery Protocol (MSDP) | ||
Çѱ۳»¿ë¿ä¾à | IETFÀÇ RFC 3618 Multicast Source Discovery Protocol (MSDP) Ç¥ÁØÀº ¿©·¯ °³ÀÇ PIM-SM(Protocol Independent Multicast-Sparse Mode, ÇÁ·ÎÅäÄݵ¶¸³ ¸ÖƼij½ºÆ®-»êÀç¸ðµå) ¿µ¿ªÀ» ¿¬°áÇÏ¿© ¸ÖƼij½ºÆ® ¼ºñ½º¸¦ Á¦°øÇÒ ¼ö ÀÖ°Ô ÇÑ´Ù. PIM-SM¿µ¿ª¿¡ ÀÖ´Â RP°¡ »õ·Î¿î ¸ÖƼij½ºÆ® ¼Û½ÅÀÚ¸¦ ¹ß°ßÇÏ°Ô µÇ¸é ¼Ò½º ±¤°í(Source Advertisement) ¸Þ½ÃÁö¸¦ ÅëÇÏ¿© µ¿µî MSDP¿¡°Ô º¸³½´Ù. ¼Ò½º ±¤°í ¸Þ½ÃÁö¿¡´Â ¸ÖƼij½ºÆ® µ¥ÀÌÅÍ ¼Ò½º ÁÖ¼Ò¿Í ±×·ì ÁÖ¼Ò ±×¸®°í RPÀÇ IP ÁÖ¼Ò°¡ Æ÷ÇԵȴÙ. ¼Ò½º ±¤°í ¸Þ½ÃÁö¸¦ ¹ÞÀº µ¿µî RP´Â ÀÚ±â¿Í ¿¬°áµÈ ´Ù¸¥ RPµé¿¡°Ôµµ À̸¦ ¾Ë·ÁÁØ´Ù. À̶§ ¸ðµç RP¿¡°Ô ¾Ë·ÁÁÖ°Ô µÇ¸é ¸Þ½ÃÁö´Â ÀÎÅÍ³Ý »ó¿¡¼ °è¼Ó ¶°µ¹±â ¶§¹®¿¡ ¸Þ½ÃÁö¸¦ Àü´ÞÇÒ ±ÔÄ¢±îÁö Á¤ÀǵȴÙ. RP¿¡¼ ¼Ò½º ±¤°í ¸Þ½ÃÁö¸¦ ¹ÞÀ¸¸é ÀÚ½ÅÀÇ ¸ÖƼij½ºÆ® Æ®¸®¿¡¼ ±¤°íµÈ Á¤º¸¸¦ ¼ö½ÅÇÏ°íÀÚ ÇÏ´Â ¼ºñ½º ÀÌ¿ëÀÚ°¡ ÀÖ´ÂÁö È®ÀÎÇÑ´Ù. ¸¸¾à ¼ºñ½º ÀÌ¿ëÀÚ°¡ ÀÖÀ¸¸é ¼ºñ½º¸¦ Á¦°øÇÏ°í ÀÖ´Â ¼Ò½º ÁÖ¼Ò¸¦ ¾Ë·ÁÁÖ¸ç ¼ö½Å ÀÌ¿ëÀÚ¿¡ ¿¬°áµÈ ¿§Áö ¶ó¿ìÅÍ´Â ¼Ò½º ÁÖ¼Ò·Î PIMJoin ¸Þ½ÃÁö¸¦ º¸³½´Ù. ÀÌ·¸°Ô ÇÏ¿© ¼ºñ½º ÀÌ¿ëÀÚ´Â ´Ù¸¥ ¿µ¿ª¿¡ ÀÖ´Â ¸ÖƼij½ºÆ® ¼Û½ÅÀÚ¿¡°Ô¼ ¸ÖƼij½ºÆ® ¼ºñ½º¸¦ Á¦°ø ¹ÞÀ» ¼ö ÀÖ´Ù. | ||
¿µ¹®³»¿ë¿ä¾à | The Multicast Source Discovery Protocol (MSDP) describes a mechanism to connect multiple PIM Sparse-Mode (PIM-SM) [RFC2362] domains together. Each PIM-SM domain uses its own independent RP(s) and does not have to depend on RPs in other domains. Advantages of this approach is that the PIM-SM domains can rely on their own RPs only and that domains with only receivers get data without globally advertising group membership. MSDP-speaking routers in a PIM-SM domain have a MSDP peering relationship with MSDP peers in another domain. The peering relationship is made up of a TCP
connection in which control information is exchanged. Each domain has one or more connections to this virtual topology. The purpose of this topology is to allow domains to discover multicast sources from other domains. If the multicast sources are of interest to a domain which has receivers, the normal source-tree building mechanism in PIM-SM will be used to deliver multicast data over an inter-domain distribution tree. |
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±¹Á¦Ç¥ÁØ | IETF RFC 3618 | ||
°ü·ÃÆÄÀÏ | TTAE_IF-RFC3618.zip |
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