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Ç¥ÁعøÈ£ TTAS.IT-E361 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2007-12-26 ÃÑÆäÀÌÁö 30
ÇѱÛÇ¥ÁØ¸í ¼­·Î ´Ù¸¥ ¶ó¿ìÆà ±â¼úÀ» »ç¿ëÇÏ´Â QoS ¼­ºñ½º Ŭ·¡½ºÀÇ »óÈ£¿î¿ëÀ» À§ÇÑ QoS ¶ó¿ìÆà Áö¿øü°è
¿µ¹®Ç¥Áظí QoS routing support for internetworking of QoS service classes across routing technologies
Çѱ۳»¿ë¿ä¾à ITU-T ±Ç°í¾È E.360.1 ¡°Framework for QoS routing and related traffic engineering
methods for IP-, ATM-, and TDM-based multiservice networks¡± Àº E.360.x ½Ã¸®Áî
¾È¿¡¼­ °¡»ó¸Á(VNETs: Virtual Networks) À̶ó°í ºÒ¸®´Â QoS ¼­ºñ½º Ŭ·¡½º(QSCs: QoS
Service Classes)¸¦ À§ÇÑ ÇÁ·¹ÀÓ¿÷À» Á¦°øÇÑ´Ù. QSCs ´Â °³º° ¼­ºñ½º Ŭ·¡½ºµéÀÇ
ÁýÇÕÀ¸·Î Á¤ÀǵȴÙ. °¢°¢ÀÇ ¸ÁÀÎÅÍÆäÀ̽º¿¡¼­ °³º° Ŭ·¡½ºº°·Î ÆĶó¹ÌÅ͸¦ ¼³Á¤ÇÏ°í
ÀüÆÄÇÏ´Â ´ë½Å¿¡ ¿ä±¸µÇ´Â ¼º´É ·¹º§À» ¸¸Á·½ÃÅ°±â À§ÇÑ °øÅëÀÇ per-QSC ÆĶó¹ÌÅ͸¦
°®´Â (¿¹, ÃÖ´ë ´ë¿ªÆø) Ŭ·¡½ºµéÀ» QSCs ÁýÇÕ ¾È¿¡ ¸ðÀº´Ù. QSCs ´Â TDM ¸Á¿¡¼­´Â
VNETs ·Î ¾Ë·ÁÁ® ÀÖ°í, IP/MPLS/DiffServ ¸Á¿¡¼­´Â Ŭ·¡½º ŸÀÔÀ¸·Î, ATM ¸Á¿¡¼­´Â QoS
Ŭ·¡½º·Î ¾Ë·ÁÁ® ÀÖ´Ù.
º» Ç¥ÁØ¿¡¼­´Â ´ÙÀ½°ú °°Àº QoS ¶ó¿ìÆà ±â´É°ú °ü·Ã ÆĶó¹ÌÅ͵éÀ» Á¤ÀÇÇÑ´Ù.
a) Æ®·¡ÇÈ°ú QoS ÆĶó¹ÌÅ͵éÀ» Æ÷ÇÔÇÑ ´ë¿ªÆø ÇÒ´ç/º¸È£;
b) ¶ó¿ìÆà ¿ì¼±¼øÀ§;
c) Å¥À× ¿ì¼±¼øÀ§;
d) ¼­ºñ½º ½Äº°ÀÚ(SI: service identity)¿Í QSC/VNET ÆĶó¹ÌÅ͵éÀ» Æ÷ÇÔÇÑ ¼­ºñ½º Ŭ·¡½º
½Äº°
º» Ç¥ÁØ¿¡¼­´Â IP, ATM, ±×¸®°í TDM ±â¹Ý ¶ó¿ìÆà ±â¼úÀ» Æ÷ÇÔÇÏ¿© ¼­·Î ´Ù¸¥ ¶ó¿ìÆÃ
±â¼úÀÌ Àû¿ëµÈ ¸ÁµéÀ» ÅëÇØ QoS ¶ó¿ìÆà ÆĶó¹ÌÅ͵éÀ» Àü´ÞÇØ ÁÖ´Â ½ÅÈ£ ¹æ½ÄÀ»
Á¦¾ÈÇÑ´Ù. º» Ç¥ÁØ¿¡¼­´Â SIP ³ª RSVP-TE °°Àº ½ÅÈ£ ÇÁ·ÎÅäÄݵéÀÌ ´ÜÀϸÁ ¾È¿¡¼­
±×¸®°í ¼­·Î ´Ù¸¥ ¸Á »çÀÌ¿¡ QSCs ¸¦ Àü´ÞÇØ ÁÙ ¼ö ÀÖµµ·Ï È®Àå ¹æ¾ÈÀ» Á¦¾ÈÇÑ´Ù.
¿µ¹®³»¿ë¿ä¾à ITU-T Rec. E.360.1, ¡°Framework for QoS routing and related traffic engineering
methods for IP-, ATM-, and TDM-based multiservice networks¡±, provides a framework
for QoS Service Classes(QSCs), called virtual networks (VNETs) in the E.360.x series.
QSCs are defined as aggregations of individual service classes. Instead of having perclass
parameters being configured and propagated on each network interface, classes
are aggregated into QSCs having common per-QSC parameters (e.g., maximum
bandwidth) to satisfy required performance levels. QSCs are known as VNETs in TDM
networks, class types in IP/MPLS/DiffServ networks, and QoS classes in ATM networks.
In this Recommendation we identify QoS routing functions and associated parameters,
which include:
a) bandwidth allocation/protection, with traffic and QoS parameters;
b) routing priority;
c) queuing priority; and
d) class-of-service identification, with service identity and QSC/VNET parameters.
We propose means of signaling these QoS routing parameters across networks
employing different routing technologies, including IP-, ATM-, and TDM-based routing
technologies. We propose extensions to signaling protocols such as SIP and RSVP-TE
to support signaling of QSCs within and across networks.
±¹Á¦Ç¥ÁØ ITU-T E.361
°ü·ÃÆÄÀÏ TTAS_IT-E361.zip TTAS_IT-E361.zip             TTAS_IT-E361.doc TTAS_IT-E361.doc

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