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Ç¥ÁعøÈ£ TTAE.IF-RFC8505 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2019-12-11 ÃÑÆäÀÌÁö 54
ÇѱÛÇ¥Áظí ÀúÀü·Â ´Ü°Å¸® ¹«¼±¸Á(6LoWPANs)ÀÇ ÀÌ¿ô Ž»öÀ» À§ÇÑ µî·Ï È®Àå
¿µ¹®Ç¥Áظí Registration Extensions for IPv6 over Low-Power Wireless Personal Area Network (6LoWPANs) Neighbor Discovery
Çѱ۳»¿ë¿ä¾à IPv6 ±â¹ÝÀÇ ÀúÀü·Â ¼Õ½Ç ³×Æ®¿öÅ©(LLNs)´Â ¼ºÇü ¹× ¸ÁÇü ÅäÆú·ÎÁö¸¦ Áö¿øÇÑ´Ù. ÀÌ·¯ÇÑ ³×Æ®¿öÅ©¸¦ À§ÇØ, ¡°ÀúÀü·Â ´Ü°Å¸® ¹«¼±¸Á(6LoWPAN)À» À§ÇÑ ÀÌ¿ôŽ»ö ÃÖÀûÈ­¡±´Â °íÀ¯ ÁÖ¼Ò¸¦ º¸ÀåÇϱâ À§ÇØ µî·Ï ¸ÞÄ¿´ÏÁò°ú Áß¾Ó IPv6 ÀÌ¿ôŽ»ö ·¹Áö½ºÆ®¶ó¸¦ Á¤ÀÇÇÏ°í ÀÖ´Ù. ÀúÀü·Â ´Ü°Å¸® ¹«¼±¸Á ÀÌ¿ôŽ»ö ¸ÞÄ¿´ÏÁòÀº ³×Æ®¿öÅ© °èÃþÀÇ ¸ÖƼij½ºÆ®¿Í ¸µÅ© °èÃþÀÇ ºê·Îµåij½ºÆ® Åë½Å¿¡¼­ IPv6 ÀÌ¿ôŽ»ö ÇÁ·ÎÅäÄÝ¿¡ ´ëÇÑ ÀÇÁ¸¼ºÀ» °¨¼Ò½ÃŲ´Ù.

º» Ç¥ÁØÀº RFC6775¸¦ º¸¿ÏÇÏ¿© ÀúÀü·Â ´Ü°Å¸® ¹«¼±¸Á ¶ó¿ìÅÍ ³»¿¡¼­ÀÇ µî·ÏÀ» °£¼ÒÈ­ÇÏ°í ÀϹÝÈ­ÇÏ´Â °ÍÀ» ¸ñÀûÀ¸·Î ÇÑ´Ù. ƯÈ÷ ÀÌ Ç¥ÁØÀº ÀúÀü·Â ´Ü°Å¸® ¹«¼±¸ÁÀÇ ÀÌ¿ôŽ»ö ÇÁ·ÎÅäÄÝ ¿ä¼Ò¿Í µ¿ÀÛÀ» ¼öÁ¤ÇÏ°í È®ÀåÇÏ¿© ¾Æ·¡¿Í °°Àº ±â´ÉÀ» Á¦°øÇÑ´Ù.

o À̵¿ ³ëµåÀÇ °¡Àå ÃÖ±Ù À§Ä¡ °áÁ¤
o ¸µÅ© ·ÎÄà ÁÖ¼ÒÀÇ µî·Ï ÀýÂ÷ °£¼ÒÈ­
o ·çÆ®-¿À¹ö(route-over) ³×Æ®¿öÅ©¿¡¼­ ¶ó¿ìÆà ºñÀÎ½Ä ¸®ÇÁ ³ëµå(leaf node) Áö¿ø
o ·çÆ®-¿À¹ö(route-over) ³×Æ®¿öÅ©¿¡¼­ÀÇ ÇÁ·Ï½Ã µî·Ï
¿µ¹®³»¿ë¿ä¾à IPv6 Low-Power and Lossy Networks (LLNs) support star and mesh topologies. For such networks, "Neighbor Discovery Optimization for IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs)" [RFC6775] (also referred to as "6LoWPAN Neighbor Discovery (ND)") defines a registration mechanism and a central IPv6 ND Registrar to ensure unique addresses. The 6LoWPAN ND mechanism reduces the dependency of the IPv6 ND protocol [RFC4861] [RFC4862] on network-layer multicast and link-layer broadcast operations.

The standard updates 6LoWPAN ND [RFC6775] to simplify and generalize registration in 6LoWPAN Routers (6LRs). In particular, it modifies and extends the behavior and protocol elements of 6LoWPAN ND to enable the following actions:

o Determining the most recent location in the case of node mobility
o Simplifying the registration flow for Link-Local Addresses
o Support for a routing-unaware leaf node in a route-over network
o Proxy registration in a route-over network
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°ü·ÃÆÄÀÏ TTAE.IF-RFC8505.pdf TTAE.IF-RFC8505.pdf            

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