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Ç¥ÁعøÈ£ TTAE.IF-RFC6775 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2013-12-18 ÃÑÆäÀÌÁö 76
ÇѱÛÇ¥Áظí 6LoWPANÀ» À§ÇÑ ÀÌ¿ô Ž»ö ÃÖÀûÈ­
¿µ¹®Ç¥Áظí Neighbor Discovery Optimization for IPv6 over Low-Power WirelessPersonal Area Networks (6LoWPANs)
Çѱ۳»¿ë¿ä¾à ÀúÀü·Â ¹«¼± PAN ¸µÅ©´Â Àü¼Û ¿À·ù °¡´É¼ºÀÌ Å©¸ç, Àú¼ÓÀÇ Á¼Àº ¶óµð¿À ÀüÆÄ ¹üÀ§¸¦ °¡Áö¸ç, Àü·Â ¼Ò¸ð¸¦ ÁÙÀ̱â À§ÇØ ±ä ¼ö¸é ½Ã°£À» °¡Áö´Â ³ëµåµé·Î ±¸¼ºµÇ´Â Ư¼ºÀ» Áö´Ñ´Ù. IPv6ÀÇ ÀÌ¿ô Ž»ö[RFC4861]¿¡ »ç¿ëµÇ´Â ¸ÖƼij½ºÆ® µ¿ÀÛÀº ÀÌ¿Í °°Àº ÀúÀü·ÂÀÇ ¿À·ù °¡´É¼ºÀÌ ³ôÀº ¹«¼± ³×Æ®¿öÅ©¿¡¼­ ¼±È£µÇÁö ¾Ê´Â´Ù. ÀÌ¿¡ µû¶ó º» Ç¥ÁØÀº ¾Æ·¡¿Í °°Àº ±â´ÉÀ» Á¦°øÇÑ´Ù.

- ¸Þ½Ã-¾ð´õ(mesh-under) ¶Ç´Â ·çÆ®-¿À¹ö(route-over) µÎ °¡Áö ¼³Á¤ÀÇ ¹«¼± LAN ȯ°æ¿¡¼­ ÃÖ¼ÒÈ­µÈ ±â´ÉÀ¸·Î ÀÌ¿ô Ž»ö ÃÖÀûÈ­¸¦ ¼öÇàÇÑ´Ù.
- ¸ÖƼij½ºÆ® Ç÷¯µù(flooding)À» Á¦°ÅÇÏ°í ¸µÅ© ·¹º§ÀÇ ¸ÖƼij½ºÆ® ¸Þ½ÃÁö Àü¼ÛÀ» ÁÙ¿©¼­ ½Ã±×³Î¸µÀ» À§ÇÑ ¿À¹öÇìµå¸¦ ÃÖ¼ÒÈ­ÇÑ´Ù.
- È£½ºÆ®µé°ú µðÆúÆ® ¶ó¿ìÅÍ °£ÀÇ ÀÎÅÍÆäÀ̽º¸¦ ÃÖÀûÈ­ÇÑ´Ù.
- ¼ö¸é »óÅ¿¡ µç È£½ºÆ®µéÀ» Áö¿øÇÑ´Ù.
- 6LoWPAN Çì´õ ¾ÐÃà[RFC6282]¿¡ ÇÊ¿äÇÑ ÄÁÅؽºÆ® Á¤º¸¸¦ Àü´ÞÇÑ´Ù.
- º¸´õ ¶ó¿ìÅÍ(border router)¿¡¼­ LoWPAN »óÀÇ ¸ðµç ¶ó¿ìÅÍ¿¡°Ô ÇÊ¿äÇÑ ÄÁÅؽºÆ® Á¤º¸¿Í ÇÁ¸®ÇȽº Á¤º¸¸¦ Àü´ÞÇÑ´Ù.
- ·çÆ®-¿À¹ö LoWPAN¿¡ ÀûÇÕÇÑ ¸ÖƼȩ Áߺ¹ ÁÖ¼Ò Å½Áö ±â´ÉÀ» Á¦°øÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à A link in a Low-power Wireless Personal Area Network(LoWPAN) is characterized as lossy, low-power, low-bit-rate, short-range; with many nodes saving energy with long sleep periods. Multicast as used in IPv6 Neighbor Discovery(ND) [RFC4861] is not desirable in such a wireless low-power and lossy network. Therefore, this standard specifies the following functions.

- Optimize Neighbor Discovery with a mechanism that is minimal yet sufficient for the operation in both mesh-under and route-over configurations.
- Minimize signaling by avoiding the use of multicast flooding and reducing the use of link-scope multicast messages.
- Optimize the interfaces between hosts and their default routers.
- Provide support for sleeping hosts.
- Disseminate context information to hosts as needed by 6LoWPAN header compression [RFC6282].
- Disseminate context information and prefix information from the border to all routers in a LoWPAN.
- Provide a multihop Duplicate Address Detection mechanism suitable for route-over LoWPANs.
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°ü·ÃÆÄÀÏ TTAE.IF-RFC6775.pdf TTAE.IF-RFC6775.pdf            

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