¿ä ¾à MPLS(Multi-Protocol Label Switching)´Â È¿À²ÀûÀÎ ¸í½ÃÀû ¶ó¿ìÆÃ(explicit routing)À» Áö¿øÇÒ ¼ö ÀÖ¾î Æ®·¡ÇÈ ¿£Áö´Ï¾î¸µ °¡´É¼ºÀ» Å©°Ô Çâ»ó½ÃÄ×´Ù. º» ³í¹®¿¡¼´Â ÀÌ¿Í °°Àº MPLS¸¦ ÀÌ¿ëÇÏ¿©, Á» ´õ È¿À²ÀûÀ¸·Î ³×Æ®¿öÅ© ÀÚ¿øÀ» È°¿ëÇÏ°í ¼º´ÉÀ» Çâ»ó½ÃÅ°´Â ¹æ¾ÈÀ¸·Î¼ ´ÙÁß °æ·Î »ó¿¡ ºÎÇϸ¦ ºÐ»ê½ÃÅ°´Â ¹æ¾ÈÀ» Á¦¾ÈÇÏ°í À̸¦ LBM(Load Balancing in MPLS networks)À̶ó ¸í¸íÇÏ¿´´Ù. LBMÀº ÇϳªÀÇ ÁøÀÔ-ÁøÃâ ¶ó¿ìÅÍ ½Ö °£¿¡ ´ÙÁßÀÇ LSP(Label Switching Path)¸¦ ¼³Á¤ÇÏ°í, ÇÃ·Î¿ì ´ÜÀ§·Î ÀÌµé ´ÙÁßÀÇ LSP¿¡ ºÎÇϸ¦ ºÐ»êÇ쵂 °æ·ÎÀÇ ±æÀÌ¿Í ºÎÇϸ¦ ÇÔ²² °í·ÁÇÏ¿© ºÎÇϸ¦ ºÐ»êÇÑ´Ù. ¶ÇÇÑ, ¸µÅ©ÀÇ È¿À²ÀûÀÎ È°¿ëÀ» À§ÇÏ¿© ¸µÅ©ÀÇ È°¿ë·üÀÌ Ä¿Áü¿¡ µû¶ó ´õ ªÀº °æ·Î¿¡ ÀÇÇؼ¸¸ »ç¿ëµÇµµ·Ï Á¦ÇÑÇÏ°í, ´õ ªÀº °æ·ÎÀÇ È°¿ë·üÀÌ Ä¿Áü¿¡ µû¶ó ´õ ±æÁö¸¸ È°¿ë·üÀÌ ´õ ³·Àº °æ·Î¸¦ ´ëü °æ·Î(alternative path) È帷Π°í·ÁÇÑ´Ù. ½Ã¹Ä·¹À̼ÇÀ» ÅëÇÏ¿© ÃÖ´Ü °æ·Î ¹æ½Ä ¹× ±âÁ¸ÀÇ ´ÙÁß °æ·Î¸¦ »ç¿ëÇÏ´Â ¹æ½Äµé°ú ¼º´ÉÀ» ºñ±³ÇÑ °á°ú LBMÀÇ ¼º´ÉÀÌ ¿ì¼öÇϸç, ƯÈ÷ ±¹ºÎÀûÀ¸·Î Æ®·¡ÇÈÀÌ ÆíÁߵǴ °æ¿ì LBMÀÌ È¿À²ÀûÀ¸·Î ´ëóÇÒ ¼ö ÀÖÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù.
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[1] D. O. Awduchem A. Chui, A. Elwalidn, I. Widjaja, and X. Xiao, `A Framework for Internet Traffic Engineering,` Internet Draft , Apr. 2000. [2] D. O. Awduche, J. Malcom, J. Agogbua, M. ODell, J. McManus, `Requirements for Traffic Engineering over MPLS,` RFC 2702, 1999. [3] Callon, R., Doolan, P., Feldman, N., Fredette, A., Swallow, G., Viswanathan, A., `A Framework for Multiprotocol Label Switching,` Internet Draft , Sep. 1999. [4] Eric C. Rosen, Arun Viswanathan, Ross Callon, `Multiprotocol Label Switching Architecture,` RFC 3031, Jan. 2001. [5] Z. Wang, J. Crowcroft, `Quality-of-Service Routing for Supporting Multimedia Applications`, IEEE JSAC(Journal on Selected Areas in Communications), Sep. 1996. [6] Anwar Elwalid, Cheng Jin, Steven Low, Indra Widjaja, `MATE: MPLS Adaptive Traffic Engineering,` Proc. of INFOCOM, Apr. 2001 [7] Srihari Nelakuditi and Zhi-Li Zhang, `On Selection of Paths for Multipath Routing,` Proc. of IWQoS, June. 2001 [8] Keping Long, Zhongshan Zhang, Shiduan Cheng, `Load Balancing Algorithms in MPLS Traffic Engineering,` Proc. of HPSR(IEEE Workshop on High Performance Switching and Routing), May. 2001. [9] Curtis Villamizar, `MPLS Optimized Multipath(MPLS-OMP),` Internet Draft , Feb. 1999. [10] ¹ÚÀϱÔ, ±èÁ¾¼º, ÀÌ¿µ¼®, ÃÖ¾çÈñ, ¡°´ÙÁß°æ·Î ÆÐŶ Àü´Þȯ°æ¿¡¼ÀÇ ¾ÈÁ¤ÀûÀÎ ºÎÇÏÁ¦¾î ±â¹ý(Stable Load Control in Multipath Packet Forwarding)¡±, Á¤º¸°úÇÐȸ ³í¹®Áö:Á¤º¸Åë½Å, vol. 29, no. 2, April 2002.
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