맺 볊 뗧 탅 솪 쏋 ITU-T 맺볊뗧탅솪쏋 (03/2006) 뗧탅뇪ힼ뮯늿쏅 Y쾵쇐ꎺ좫쟲탅쾢믹뒡짨쪩ꆢ뮥솪췸킭틩컊쳢뫍쿂튻듺췸싧 뮥솪췸뗄킭틩컊쳢 ꆪ 뮥춨 TDM-IP뮥춨 ꆪ 폃뮧욽쏦뮥춨 ITU-T 붨틩쫩
ITU-T Y쾵쇐붨틩쫩 좫쟲탅쾢믹뒡짨쪩ꆢ뮥솪췸킭틩컊쳢뫍쿂튻듺췸싧 좫쟲탅쾢믹뒡짨쪩 룅튪 튵컱ꆢ펦폃뫍훐볤볾 췸싧랽쏦- 뷓뿚뫍킭틩 뇠뫅ꆢ톰횷뫍쏼쏻 퓋펪ꆢ맜샭뫍캬뮤 낲좫 탔쓜 뮥솪췸뗄킭틩컊쳢 룅튪 튵컱뫍펦폃 쳥쾵ꆢ뷓죫ꆢ췸싧쓜솦뫍풴맜샭 뒫쫤 뮥춨 럾컱훊솿뫍췸싧탔쓜 탅쇮 퓋펪ꆢ맜샭뫍캬뮤 볆럑 쿂튻듺췸싧 .2099 뿲볜뫍릦쓜쳥쾵쒣탍-Y 럾컱훊솿뫍탔쓜 튵컱랽쏦ꎺ튵컱쓜솦뫍튵컱쳥쾵 튵컱랽쏦ꎺ훐튵컱뫍췸싧뗄뮥닙ퟷ탔 뇠뫅ꆢ쏼쏻뫍톰횷 췸싧맜샭 췸싧뿘훆쳥쾵뫍킭틩 낲좫 춨폃틆뚯탔 폻쇋뷢룼쿪쾸탅쾢ꎬ쟫닩퓄ITU-T붨틩쫩쒿슼ꆣ??
ITU-T 붨틩쫩 TDM-IP 뮥춨 ꆪ 폃뮧욽쏦뮥춨 햪 튪 놾붨틩쫩닻쫶쯙싊ퟮ룟듯DS3믲E3뗄TDM췸싧뫍IP췸싧횮볤뷸탐췸싧뮥춨쯹탨튪뗄릦쓜ꎬ틔뇣퓚IP췸싧짏뒫쯍TDM뗄튵컱쇷ꆣ놾붨틩쫩닻쏷쇋폃뮧욽쏦뗄뮥춨믺훆ꆢ솬뷓뢴폃뫍맦돌ꆣ헢킩뮥춨믺훆컱뇘좷놣TDM뗄뚨쪱ꆢ탅쇮ꆢ뮰틴훊솿뫍룦뺯뗄췪헻탔뚼뗃틔놣돖ꆣ붨틩쫩쿪쾸쏨쫶쇋뮥춨뗄쒣탍뫍탨튪뗄뮥춨릦쓜ꆣ평폚췸싧뗄춬늽탔쓜뿉쓜믡쇓폚풭놾뗄TDM뒫쯍ꎬ놾붨틩쫩캴뇘쫊뫏폚뺭죏뿉뗄퓋펪믺릹쪹폃ꆣ 살 풴 ITU-T뗚13퇐뺿ퟩꎨ2005-2008ꎩ내헕ITU-T 붨틩쫩맦뚨뗄돌탲ꎬ폚2006쓪3퓂29죕엺ힼ쇋ITU-T 붨틩쫩ꆣ 맘볼듊 뮥춨ꆢIPꆢ췸싧뮥춨ꆢTDMꆢUDPꆢ폃뮧욽쏦ꆣ ITU-T 붨틩쫩 (03/2006) i
잰 퇔 맺볊뗧탅솪쏋ꎨITUꎩ쫇듓쫂뗧탅쇬폲릤ퟷ뗄솪뫏맺쏅믺릹ꆣITU-Tꎨ맺볊뗧탅솪쏋뗧탅뇪ힼ뮯늿쏅ꎩ쫇맺볊뗧탅솪쏋뗄뎣짨믺릹ꎬ뢺퓰퇐뺿벼쫵ꆢ닙ퟷ뫍럑컊쳢ꎬ늢쟒캪퓚쫀뷧랶캧쓚쪵쿖뗧탅뇪ힼ뮯ꎬ랢뇭폐맘짏쫶퇐뺿쿮쒿뗄붨틩쫩ꆣ 쎿쯄쓪튻뷬뗄쫀뷧뗧탅뇪ힼ뮯좫믡ꎨWTSAꎩ좷뚨 ITU-T 룷퇐뺿ퟩ뗄퇐뺿뿎쳢ꎬ퓙평룷퇐뺿ퟩ훆뚨폐맘헢킩뿎쳢뗄붨틩쫩ꆣ WTSA 뗚 1 뫅뻶틩맦뚨쇋엺ힼ붨틩쫩탫ퟱ톭뗄돌탲ꆣ 쫴 ITU-T 퇐뺿랶캧뗄쒳킩탅쾢벼쫵쇬폲뗄뇘튪뇪ힼꎬ쫇폫맺볊뇪ힼ뮯ퟩ횯ꎨISOꎩ뫍맺볊뗧릤벼쫵캯풱믡ꎨIECꎩ뫏ퟷ훆뚨뗄ꆣ 힢 놾붨틩쫩캪볲쏷뛳튪웰볻뛸쪹폃뗄ꆰ훷맜늿쏅ꆱ튻듊ꎬ볈횸뗧탅훷맜늿쏅ꎬ폖횸뺭죏뿉뗄퓋펪믺릹ꆣ ퟱ쫘놾붨틩쫩뗄맦뚨쫇틔ퟔ풸캪믹뒡뗄ꎬ떫붨틩쫩뿉쓜냼몬쒳킩잿훆탔쳵뿮ꎨ틔좷놣샽죧뮥닙ퟷ탔믲쫊폃탔뗈ꎩꎬ횻폐싺ퟣ쯹폐잿훆탔쳵뿮뗄맦뚨ꎬ닅쓜듯떽ퟱ쫘붨틩쫩뗄쒿뗄ꆣꆰ펦룃ꆱ믲ꆰ뇘탫ꆱ뗈웤쯼튻킩잿훆탔폃폯벰웤럱뚨탎쪽놻폃폚뇭듯쳘뚨튪쟳ꆣ쪹폃듋샠폃폯늻뇭쪾튪쟳죎뫎튻랽ퟱ쫘놾붨틩쫩ꆣ 횪쪶닺좨 맺볊뗧솪쳡쟫힢틢ꎺ놾붨틩쫩뗄펦폃믲쪵쪩뿉쓜짦벰쪹폃틑짪놨뗄횪쪶닺좨ꆣ맺볊뗧솪뛔컞싛쫇웤돉풱뮹쫇붨틩쫩훆뚨돌탲횮췢뗄웤쯼믺릹쳡돶뗄폐맘틑짪놨뗄횪쪶닺좨뗄횤뻝ꆢ폐킧탔믲쫊폃탔늻뇭쪾틢볻ꆣ 훁놾붨틩쫩엺ힼ횮죕횹ꎬ맺볊뗧솪짐캴쫕떽쪵쪩놾붨틩쫩뿉쓜탨튪뗄쫜샻놣뮤뗄횪쪶닺좨뗄춨횪ꆣ떫탨튪쳡탑쪵쪩헟힢틢뗄쫇ꎬ헢뿉쓜늢럇ퟮ탂탅쾢ꎬ틲듋쳘듳솦쳡뎫쯻쏇춨맽쿂쇐췸횷닩톯뗧탅뇪ힼ뮯뻖ꎨTSBꎩ뗄샻쫽뻝뿢ꎺ 맺볊뗧솪 2006 냦좨쯹폐ꆣ캴뺭맺볊뗧솪쫂쿈쫩쏦탭뿉ꎬ늻뗃틔죎뫎쫖뛎뢴훆놾돶냦컯뗄죎뫎늿럖ꆣ ii ITU-T 붨틩쫩 (03/2006)
쒿 슼 튳싫 1 랶캧........................................................................................................................................................ 1 2 닎뾼컄쿗................................................................................................................................................ 1 3 뚨틥........................................................................................................................................................ 3 4 쯵킴듊뫍쫗ퟖ쒸쯵싔폯........................................................................................................................ 3 5 맟샽........................................................................................................................................................ 4 6 TDM-IP 뮥춨.......................................................................................................................................... 5 7 튻냣탔튪쟳............................................................................................................................................ 6 폃뮧욽쏦튪쟳........................................................................................................................ 6 맜샭욽쏦랽쏦........................................................................................................................ 7 닮듭맜샭랽쏦........................................................................................................................ 8 튵컱쇷맜샭랽쏦.................................................................................................................... 9 IWF뗄솬뷓퓊탭뿘훆............................................................................................................ 9 8 TDM-IP췸싧뮥춨릦쓜ퟩ뗄뾼싇.......................................................................................................... 10 IP............................................................................................................................................ 10 UDP........................................................................................................................................ 10 춨폃뮥춨횸쪾폯.................................................................................................................... 10 죎톡뗄뚨쪱탅쾢.................................................................................................................... 12 TDM 폐킧뢺뫉...................................................................................................................... 12 냼ힰ룱쪽ퟜ뷡........................................................................................................................ 12 9 폐킧뢺뫉룱쪽........................................................................................................................................ 16 뷡릹늻쏷뗄뒫쯍.................................................................................................................... 16 쪶뇰뷡릹뗄뒫쯍.................................................................................................................... 17 10 뚨쪱랽쏦................................................................................................................................................ 20 11 냼뚪쪧랽쏦............................................................................................................................................ 20 12 뛔CAS뫍CCS뗄횧돖......................................................................................................................... 20 CAS뗄횧돖............................................................................................................................ 20 CCS뗄횧돖............................................................................................................................ 20 13 낲좫뾼싇................................................................................................................................................ 21 뢽슼튻 ꆪ 죎톡뗄뛔믹폚HDLC뗄CCS탅뫅뗄뒦샭................................................................................... 21 뢽슼뛾 ꆪ IP췸싧탔쓜뗄볆솿......................................................................................................................... 21 IP췸싧훐펰쿬TDM럾컱뗄닮듭......................................................................................... 21 폫TDM럾컱쯰짋볆솿뗄맘쾵.............................................................................................. 22 뿉폃탔튪쟳............................................................................................................................ 23 뮰틴훊솿튪쟳........................................................................................................................ 23 뢽슼죽 ꆪ 붨틩릩뷡릹늻쏷뗄뒫쯍쪹폃뗄폐킧뢺뫉뎤뛈............................................................................. 24 뢽슼쯄 ꆪ 붨틩뗄쎿룶쫽뻝냼훐AAL 1 SAR PDU뗄쫽솿........................................................................... 24 ITU-T 붨틩쫩 (03/2006) iii
틽퇔 폐탨쟳튪뚨틥튻훖췸싧뮥춨ꎬ퓚듋튵컱쇷쫇듓뒫춳뗄춬늽믲ힼ춬늽췸싧ꎨ듋뫳뇭쪾캪TDM췸싧ꎩ뺭평IP췸싧뷸탐뒫쯍ꆣ헢퇹튻훖뮥춨컱뇘튪좷놣TDM뗄뚨쪱ꆢ탅쇮ꆢ뮰틴훊솿뫍룦뺯뗄췪헻탔뚼뗃틔놣돖ꆣ iv ITU-T 붨틩쫩 (03/2006)
ITU-T 붨틩쫩 TDM-IP 뮥춨 ꆪ 폃뮧욽쏦뮥춨 1 랶캧 놾붨틩쫩닻쫶쯙싊ퟮ룟듯DS3/E3뗄TDM췸싧뫍IP췸싧횮볤뷸탐췸싧뮥춨쯹탨튪뗄릦쓜ꎬ틔뇣퓚IP췸싧짏뒫쯍TDM뗄튵컱쇷ꆣ룼룟쯙싊TDM럾컱ꎨ죧SDHꎩ퓚IP췸싧짏뗄뒫쯍늻쫴폚놾붨틩쫩랶캧ꆣ놾붨틩쫩닻쏷쇋폃뮧욽쏦뗄뮥춨믺훆ꆢ솬뷓뢴폃뫍쿠맘뗄맦돌ꆣ헢킩뮥춨믺훆컱뇘좷놣TDM뚨쪱ꆢ탅쇮ꆢ뮰틴훊솿뫍룦뺯뗄췪헻탔뚼뗃틔놣돖ꆣ붨틩쫩쿪쾸뗘탰쫶쇋뮥춨뗄쒣탍뫍쯹탨뗄뮥춨릦쓜ꆣ평폚췸싧뗄춬늽탔쓜뿉쓜믡쇓폚풭놾뗄TDM뒫쯍ꎬ놾붨틩쫩캴뇘쫊뫏폚뺭죏뿉뗄퓋펪믺릹ꎨROAꎩ[1]쪹폃ꆣ 2 닎뾼컄쿗 쿂쇐ITU-T붨틩쫩뫍웤쯻닎뾼컄쿗뗄쳵뿮ꎬ퓚놾붨틩쫩훐뗄틽폃뛸릹돉놾붨틩쫩뗄쳵뿮ꆣ퓚돶냦쪱ꎬ쯹횸돶뗄냦놾쫇폐킧뗄ꆣ쯹폐뗄붨틩쫩뫍웤쯼닎뾼컄쿗뻹믡뗃떽탞뚩ꎬ놾붨틩쫩뗄쪹폃헟펦닩횤쫇럱폐뿉쓜쪹폃쿂쇐붨틩쫩믲웤쯼닎뾼컄쿗뗄ퟮ탂냦놾ꆣ떱잰폐킧뗄ITU-T붨틩쫩쟥떥뚨웚돶냦ꆣ놾붨틩쫩틽폃뗄컄볾ퟔ돉튻쳥쪱늻뻟놸붨틩쫩뗄뗘캻ꆣ [1] ITU-T Recommendation (1996), Operational provisions for the maritime mobile service. [2] ITU-T Recommendation (2003), ATM-MPLS network interworking – Cell mode user plane interworking. [3] ITU-T Recommendation (2004), TDM-MPLS network interworking – User plane interworking. [4] ITU-T Recommendation (2003), Functional architecture of connectionless layer networks. [5] ITU-T Recommendation (1988), Digital hierarchy bit rates. [6] ITU-T Recommendation (2000), Characteristics of plesiochronous digital hierarchy (PDH) equipment functional blocks. [7] ITU-T Recommendation (2003), One-way transmission time. [8] ITU-T Recommendation (2002), End-to-end error performance parameters and objectives for international, constant bit-rate digital paths and connections. [9] ITU-T Recommendation (2000), The control of jitter and wander within digital networks which are based on the 2048 kbit/s hierarchy. [10] ITU-T Recommendation (2000), The control of jitter and wander within digital networks which are based on the 1544 kbit/s hierarchy. [11] IETF RFC 791 (1981), Internet Protocol – DARPA Internet Program – Protocol Specification. [12] IETF RFC 2460 (1998), Internet Protocol, Version 6 (IPv6) Specification. ITU-T 붨틩쫩 (03/2006) 1
[13] IETF RFC 768 (1980), User Datagram Protocol. [14] ITU-T Recommendation (2001), Physical/electrical characteristics of hierarchical digital interfaces. [15] ITU-T Recommendation (1988), Modems for synchronous data transmission using 60-180 kHz group band circuits. [16] ITU-T Recommendation (1988), Synchronous data transmission at a data signalling rate higher than 72 kbit/s using 60-108 kHz group band circuits. [17] ITU-T Recommendation (1988), Circuit-mode bearer service categories – Circuit-mode 64 kbit/s unrestricted, 8 kHz structured bearer service. [18] ANSI (2002), Digital Hierarchy – Formats Specifications. [19] ITU-T Recommendation (1988), Digital multiplex equipments operating at the third order bit rate of 34 368 kbit/s and the fourth order bit rate of 139 264 kbit/s and using positive justification. [20] ITU-T Recommendation (1998), Synchronous frame structures used at 1544, 6312, 2048, 8448 and 44 736 kbit/s hierarchical levels. [21] ITU-T Recommendation (1993), Introduction to CCITT Signalling System No. 7. [22] ITU-T Recommendation (1998), ISDN user-network interface layer 3 specification for basic call control. [23] ITU-T Recommendation (1996), B-ISDN ATM Adaptation Layer specification: Type 1 AAL. [24] IETF RFC 3550 (2003), RTP: A Transport Protocol for Real-Time Applications. [25] ITU-T Recommendation (2002), Internet protocol data communication service – IP packet transfer and availability performance parameters. [26] IETF RFC 2474 (1998), Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers. [27] IETF RFC 3246 (2002), An Expedited Forwarding PHB (Per-Hop Behavior). [28] IETF RFC 2210 (1997), The Use of RSVP with IETF Integrated Services. [29] IETF RFC 2212 (1997), Specification of Guaranteed Quality of Service. [30] ATM Forum (1997), Circuit Emulation Service . [31] ITU-T Recommendation (1988), Interworking between networks based on different digital hierarchies and speech encoding laws. [32] ITU-T Recommendation (1997), ISDN user network interface – Data link layer specification. [33] ITU-T Recommendation (2003), Availability performance parameters and objectives for end-to-end international constant bit-rate digital paths. [34] ITU-T Recommendation (2003), Performance parameter definitions for quality of speech and other voiceband applications utilizing IP networks. [35] ITU-T Recommendation (1996), Methods for subjective determination of transmission quality. [36] ITU-T Recommendation (2001), Perceptual evaluation of speech quality (PESQ): An objective method for end-to-end speech quality assessment of narrow-band telephone networks and speech codecs. 2 ITU-T 붨틩쫩 (03/2006)
[37] ITU-T Recommendation (1988), Circuit-mode bearer service categories: Circuit-mode 2 × 64 kbit/s unrestricted, 8 kHz structured bearer service. [38] ITU-T Recommendation (1992), Circuit-mode bearer service categories: Circuit-mode multiple-rate unrestricted 8 kHz structured bearer service. [39] ITU-T Recommendation (1996), Circuit-mode bearer service categories: Circuit-mode 384 kbit/s unrestricted, 8 kHz structured bearer service. 3 뚨틥 놾붨틩쫩쪹폃믲뚨틥죧쿂쫵폯ꎺ interworking 뮥춨ꎺ닎볻ITU-T 붨틩쫩[2]ꆣ interworking flow 뮥춨쇷ꎺ튻뛔돶폚뒫쯍TDM튵컱쇷뗄쒿뗄쓜뺭평IP췸싧퓚쿠랴뗄랽쿲짏춬쪱뒫쯍탅쾢뗄 탅쇷[4]ꆣ interworking function (IWF) 뮥춨릦쓜ꎨIWFꎩꎺ닎볻ITU-T 붨틩쫩ꆣ ingress IWF 죫뿚IWFꎺ솬탸뗄TDM쇷놻럖뛎늢럢ힰ돉IP냼쯹퓚뗄뗣ꎨTDM훁IP랽쿲ꎩꆣ egress IWF 돶뿚IWFꎺ붫TDM럖뛎듓IP냼훐닰돶ꎬ늢훘탂ퟩힰ돉솬탸뗄TDM쇷쯹퓚뗄뗣ꎨI P훁TDM랽쿲ꎩꆣ 4 쯵킴듊뫍쫗ퟖ쒸쯵싔폯 놾붨틩쫩쪹폃틔쿂뗄쯵킴듊뫍쫗ퟖ쒸쯵싔폯ꎺ AAL ATM 쫊엤닣 AIS 룦뺯횸쪾탅뫅 AP 뷓죫뗣 ATM 틬늽뒫쯍쒣쪽 CAS 쯦슷탅쇮 CCS 릫릲탅뗀탅쇮 CES 뗧슷쒣쓢럾컱 CP 솬뷓뗣 CSI 믡뻛ퟓ닣횸쪾 CSRC 삡룸풴 dAIS AIS 맊헏 Diffserv 닮뇰럾컱 dLOA 쪧좥춬늽맊헏 dLOS 탅뫅뚪쪧맊헏 DSn 뗚 n 벶쫽ퟖ탅뫅 EF PHB 볓쯙랢뗄훰쳸탐캪 En 뗚 n 벶뗄뗧뷓뿚탅뫅 FAS 횡춬늽탅뫅 FCS 횡킣퇩탲쇐 ITU-T 붨틩쫩 (03/2006) 3
GS 폐놣횤뗄럾컱 HDLC 룟벶쫽뻝솴슷뿘훆 Intserv ퟛ뫏럾컱 IP 췸볊킭틩 ISDN ퟛ뫏튵컱쫽ퟖ췸 IWF 뮥춨릦쓜 LOF 횡춬늽뚪쪧 LOS 탅뫅뚪쪧 MPLS 뛠킭틩뇪볇붻뮻 MTU ퟮ듳뒫쯍떥풪 OAM 닙ퟷꆢ맜샭뫍캬뮤 PDU 킭틩쫽뻝떥풪 PDV 냼쪱퇓뇤뮯 PLC 냼뚪쪧틾쓤 PM 탔쓜볠닢 PRI 튻듎좺쯙싊뷓뿚 PSTN 릫훚붻뮻뗧뮰췸 PT 폐킧뢺뫉샠탍 QoS 럾컱훊솿 ROA 죏뿉뗄퓋탐믺릹 RDI 풶돌맊헏횸쪾 RFC 헷쟳틢볻 RTP 쪵쪱킭틩 SAR 럖뛎뫍훘탂ퟩힰ SRTS 춬늽뗄쪣폠쪱볤뇪잩 SSRC 춬늽풴 TDM 쪱럖뢴폃 TFP 훕뛋쇷뗣 UDP 폃뮧쫽뻝놨킭틩 5 맟샽 놾붨틩쫩뛔폚 [5]쯙싊뗈벶볜릹룷뗈벶짏뗄쫽ퟖ탅뫅붫쪹폃뒫춳뗄쫵폯ꆣ뻟쳥뗘ꎬ쯙싊캪2048 kbit/s뗄뗚튻벶쫽ퟖ탅뫅ꎨ퓚 [6]쫵폯훐캪P12ꎩ붫쏼쏻캪E1ꎬ뛸듓쯼떼돶뗄쯙싊캪34 368 kbit/s뗄뗚죽뗈벶탅뫅ꎨP31ꎩ캪E3ꆣ샠쯆뗘ꎬ쯙싊캪1544 kbit/s뗄뗚튻벶탅뫅ꎨP11ꎩ놻쏼쏻캪DS1ꎬ쯼엉짺뗄쯙싊캪6312 kbit/s뗄뗚뛾뗈벶ꎨP21ꎩ캪DS2ꎬ쯼엉짺뗄쯙싊캪44 736 kbit/s 뗄뗚죽뗈벶ꎨP32ꎩ캪DS3ꆣDS0뻟폐64 kbit/s뗄탅뫅쯙싊ꆣ 4 ITU-T 붨틩쫩 (03/2006)
6 TDM-IP 뮥춨 놾붨틩쫩뚨틥폫쯙싊ퟮ룟듯DS3믲E3뗄TDM럾컱뗄뮥춨ꆣ퓚IP췸싧짏룼룟쯙싊TDM럾컱ꎨ죧SDHꎩ뗄뒫쯍늻쫴폚놾붨틩쫩뗄랶캧ꆣ TDM럾컱뎣맦뗘쫇퓚틔뗧슷붻뮻쒣쪽퓋탐뗄췸싧짏뒫쯍뗄ꆣ 튻룶TDM뿍뮧튪쟳쯼뗄럾컱웷닣붫뺫뛈ꆢ쮳탲뫍쪱볤뗄쯰짋쿞훆퓚맦뚨뗄뷧쿞틔쓚ꆣ뛔폚튻룶컞솬뷓뗄럾컱웷닣ꎬ헢훖쯰짋뗄퇏훘탔믡쯦ퟅ럾컱웷닣뗄뢺뫉뛸럇쿟탔퓶볓ꆣ 평폚럾컱웷닣뗄뢺뫉늻뿉쓜풤쿈횪뗀ꎬ늢쟒믡쯦쪱볤뛸뇤뮯ꎬ퓚IP럾컱웷횮짏짨훃TDM뗄뿍뮧닣ꎬ쪹쯼럻뫏ITU-T폫TDM탔쓜쿠맘뗄붨틩쫩ꎬ뛔폚짨놸훆퓬짌뫍럾컱쳡릩짌듸살쇋훘듳뗄쳴햽ꆣ폈웤쫇평폚쫽뻝냼뗄뚪쪧ꆢ쪱퇓뫍쪱퇓뇤뮯ꎬ뛋떽뛋뗄쪱퇓[7]ꆢ컳싫[8]뫍뚨쪱[9]뫍[10]탔쓜ꎬ폫퓚풭놾뗄TDM믹뒡짨쪩짏뺭샺뗄탔쓜쿠뇈ꎬ튻냣뗘붫믡뛱뮯ꆣIP췸싧뗄탔쓜붫퓚뢽슼뛾훐쳖싛ꆣ 틲듋ꎬ쪵쿖놾붨틩쫩뗄폃뮧펦룃횪뗀ꎺ튪풤닢믲놣횤탔쓜쫇늻듳뿉쓜뗄ꆣ 춼6-1쳡릩쇋TDM-IP췸싧뮥춨튻냣탔뗄췸싧뷡릹ꎬ퓚듋TDM췸싧뺭평IP췸싧[11]뫍[12]뮥솬웰살ꆣ힢틢ꎺ평폚IP톡슷킭틩뗄뷡맻ꎬ뺭평IP췸싧뗄슷뺶믡쯦쪱볤뛸룄뇤ꆣ 퓚TDM훁IP랽쿲ꎬ솬탸뗄TDM쇷평뮥춨릦쓜ꎨIWFꎩ럖뛎늢럢ힰ돉UDP/IP [13]냼ꆣ뛸퓚IP훁TDM랽쿲ꎬTDM뗄럖뛎듓UDP/IP냼훐돩돶ꎬ놻훘탂ퟩힰ돉솬탸뗄TDM쇷ꆣ 춼6-2닉폃ITU-T 붨틩쫩[4]뗄춼탎벼쫵쏨쫶쇋TDM-IP뮥춨뗄췸싧릦쓜뷡릹ꆣ퓚뢽슼죽/ [3]훐뛔튻킩쳘뚨쟩뺰쳡릩쇋샽ퟓꆣ 춼6-3쿔쪾쇋췸싧닎뾼쒣탍틔벰TDM-IP폃뮧욽쏦뮥춨뗄킭틩닣ꆣ 춼 6-1/ TDM-IP췸싧뮥춨뗄닎뾼뷡릹 ITU-T 붨틩쫩 (03/2006) 5
춼 6-2/ꎭ내헕춼탎맟샽쏨쫶뗄TDM-IP췸싧뮥춨뗄릦쓜뷡릹 춼 6-3/ꎭ췸싧닎뾼쒣탍뫍TDM-IP폃뮧욽쏦뮥춨뗄킭틩닣 7 튻냣탔튪쟳 폃뮧욽쏦튪쟳 캪쇋퓚IP췸싧짏뒫쯍TDM쇷ꎬ틔쿂뗄쓜솦쫇탨튪뗄ꎺ a) 퓚솽룶IWF횮볤뒫쯍뛠룶TDM쇷뗄쓜솦ꆣ b) 횧돖뻟폐뛔돆듸뿭늢냳뚨돉쮫릤TDM뗄쮫쿲탅쇷ꆣ c) 뒫쯍틔쿂컞뷡릹뗄TDM샠탍뗄쓜솦ꎺ 1) ITU-T 붨틩쫩[14]뚨틥뗄1544 kbit/s뗄DS1ꎻ 2) ITU-T 붨틩쫩뚨틥뗄2048 kbit/s뗄E1ꎻ 3) ITU-T 붨틩쫩뚨틥뗄6312 kbit/s뗄DS2ꎻ 4) ITU-T [15]뫍[16]붨틩쫩뚨틥뗄춬늽뒮탐뗄쫽뻝ꎻ 6 ITU-T 붨틩쫩 (03/2006)
5) N × 64 kꎨ뻟쳥뗘뛔 N=1퓚ITU-T 붨틩쫩[17]훐뚨틥ꎬ뛔 N=2 퓚ITU-T 붨틩쫩[37]훐뚨틥ꎬ뛔 N=3 퓚ITU-T 붨틩쫩[38]훐뚨틥ꎬ뛸뛔 N=6 퓚ITU-T 붨틩쫩[39]훐뚨틥ꎩꎻ 6) ANSI [18]뚨틥뗄44 736 kbit/s뗄DS3ꎻ 7) ITU-T 붨틩쫩[19]뚨틥뗄34 368 kbit/s뗄E3ꆣ d) 뒫쯍틔쿂폐뷡릹뗄TDM샠탍뗄쓜솦ꎺ 1) ITU-T 붨틩쫩[20]뚨틥뗄DS1ꎻ 2) ANSI 훐뚨틥뗄벫짙뗄DS1ꎬ쯼킯퓘N룶쪱쾶ꎬNퟔ1훁23ꎻ 3) ITU-T 붨틩쫩뚨틥뗄E1ꎻ 4) ITU-T 붨틩쫩뚨틥뗄벫짙뗄E1ꎬ쯼킯퓘N룶쪱쾶ꎬNퟔ1훁30ꎻ 5) 뛠룶춬늽뗄DS0ꎻ 6) ITU-T 붨틩쫩뚨틥뗄DS2ꆣ e) 뒫쯍폐뷡릹뗄TDM샠탍훐쿮쒿d 1ꎬ2ꎬ3ꎬ4ꎬ6ꎬ늢듸폐쯦슷탅쇮ꎨCASꎩ뗄쓜솦ꎬ쯼쏇퓚ANSI 뫍ITU-T 붨틩쫩훐뚨틥ꆣ f) 뒫쯍룉쿟뗄믲폫뢨훺릦쓜쿠솪쾵뗄릫릲탅뗀탅쇮ꎨCCSꎩ뗄쓜솦ꎬ샽죧ITU-T [21]뫍 붨틩쫩[22]훐쯹뚨틥뗄ꆣ g) 죫뿚IWF듓췢늿쪱훓탅뫅훐쳡좡뚨쪱뗄쓜솦ꎬ샻폃릫릲쪱훓풴뗄쓜솦ꎬ믲헟닉폃쫊펦탔벼쫵믖뢴TDM뚨쪱뗄쓜솦ꆣ h) 뚨쪱믖뢴튪럻뫏[9]믲[10]튵컱쇷뷓뿚뗄뚶뚯뫍욯틆맦랶ꆣ i) 폫쿖폐MPLS [3]믲ATM[23]췸싧돐퓘뗄뗧슷쒣쓢럾컱ꎨCESꎩ뷸탐뮥춨뗄쓜솦ꆣ j) 쓜뿉뾿뗘볬닢냼뚪쪧뫍쮳탲닮듭뗄쓜솦ꆣ k) 쓜힢죫AIS믲쳮돤쫽뻝살늹뎥뚪쪧뗄쫽뻝냼뗄쓜솦ꆣ l) 쓜퓋탐폚죎뫎IP췸싧뗄쓜솦ꎬ떫튪쓜샻폃IP췸싧뗄QoS쳘탔ꎬ죧맻폐헢훖쳘탔듦퓚ꆣ m) 뛔폚쓜쪶뇰뷡릹뗄뒫쯍ꎬIWF튪폐쓜놣돖TDM횡춬늽ꎨ틔벰쫊폃쪱뗄뢴횡춬늽ꎩ뗄쓜솦ꆣ n) 쓜짨훃폐킧뢺뫉뎤뛈뗄쓜솦ꎬ틔놣횤냼뎤뛈늻뎬맽슷뺶뗄ퟮ듳뒫쯍떥풪ꎨMTUꎩꆣ 맜샭욽쏦랽쏦 캪쇋퓚IP췸싧짏뒫쯍TDM럾컱ꎬ탫쓜뛔틔쿂쓜솦볓틔엤훃ꎺ a) 솽룶랽쿲짏UDP풴뛋뿚뫍쒿뗄뛋뿚뗄쫽횵ꆣ b) ퟱ톭 c)뫍d)뗄TDM튵컱쇷샠탍ꆣ c) 폃폚뒮탐쫽뻝ꎨ cꎩ4ꎩ뗄뇈쳘싊ꆣ d) 폃폚N × 64 kꎨ cꎩ4ꎩ뗄N횵ꆣ e) 폃폚늿럖E1믲DS1ꎨ dꎩ2믲4ꎩ쪱뗄N횵ꆣ f) 폐킧뢺뫉뗄룱쪽ꎨ닎볻뗚9뷚ꎩꆣ g) 뛔폚뷡릹늻쏷뗄뒫쯍ꎺ쎿룶IP냼폐킧뢺뫉뗄냋뇈쳘ퟩ쫽ꆣ h) 뛔폚컞뷡릹뗄DS1ꎺ쫇럱쪹폃DS1냋뇈쳘ퟩ뛔웫뗄랽쪽ꆣ i) 뛔폚뷡릹쯸뚨뗄냼ힰꎺ쎿룶IP냼훐횡뗄쫽솿ꆣ ITU-T 붨틩쫩 (03/2006) 7
j) 뛔폚틑횸쏷뷡릹뗄냼ힰꎺ 1) 쎿룶냼훐48룶냋뇈쳘ퟩPDU뗄쫽솿ꎻ 2) AAL 1쒣쪽ꎺ컞뷡릹뗄ꆢ폐뷡릹뗄믲헟폐뷡릹뗄늢듸폐CASꆣ k) 뛔쫇럱쪹폃RTP [24]뗄횸쪾ꆣ l) 죧맻쪹폃RTPꎺ 1) 쓜럱듓릫릲쪱훓좷뚨쪱볤뇪잩ꎻ 2) 릫릲뗄쪱훓욵싊쓜놻8 kHz헻돽ꎻ 3) 폐킧뢺뫉샠탍ꎨPTꎩꎻ 4) SSRC뗄횵ꆣ 닮듭맜샭랽쏦 뮥춨릦쓜탫횧돖퓚IP뫍TDM췸싧횮볤뒫쯍맊헏탅쾢ꎬ쟩뿶죧춼7-1쯹쏨쫶뗄ꆣ뻟쳥뗘쮵ꎬ놾뗘뗄TDM맊헏[6]ꎬ죧탅뫅뚪쪧믲쪧춬늽ꎬ탫듓죫뿚뗄IWF폃탅쇮뒫쯍떽돶뿚뗄IWFꎻ뛸IP뗄틬뎣[25]ꎬ죧냼뗄쮳탲닮듭뫍뚪쪧ꎬ탫평돶뿚IWFퟶ돶볬닢ꆣ 뮥춨릦쓜탫춨맽퓚춨폃뮥춨횸쪾폯훐짨훃쫊떱뗄뇪볇뺭평IP췸싧뒫쯍TDM뗄맊헏횸쪾ꆣ뛔TDM맊헏ힴ첬뗄뚨틥틔벰뷸죫뫍췋돶쓇킩ힴ첬뗄ힼ퓲퓚ITU-T 붨틩쫩[6]훐뚨틥ꆣ뇠싫늻뇘튪쫇튻뛔튻뗄ꎬ튲뻍쫇쮵ꎺ컞킧TDM쫽뻝뗄떥룶횸쪾웷뿉틔폃폚횸쪾뛠룶TDM맊헏믲뛠훖횸쪾ꎨ죧dLOSꆢdLOA 믲 dAISꎩꆣ듋췢ꎬ죧맻쫊폃ꎬ펦룃쿲맜샭닣쯍돶튻룶쫊떱뗄룦뺯ꆣ 돶뿚IWF춨맽볠닢쫊쪱떽듯뗄쫽뻝냼뫍춨폃뮥춨횸쪾폯훐뗄탲쇐뫅살볬닢IP뗄틬뎣ꆣ늻맜폐쪲쎴틬뎣ꎬ돶뿚IWF펦룃놣횤웤놾뗘TDM뷓뿚춬늽뗄췪헻탔ꆣ돶뿚IWF펦룃놣돖폐틬뎣뗄춳볆볇슼ꎬ떱틬뎣뗄쏜뛈듯떽릹돉캪튻룶맊헏쪱ꎬ쯼탫붫헢맊헏춨횪죫뿚IWFꎬ늢쿲맜샭닣랢돶쫊떱뗄룦뺯ꆣ 퓚IP췸싧닮듭뫍풶돌TDM췸싧닮듭횮볤탫쳡릩쓜볓틔쟸럖뗄쓜솦ꆣ 8 ITU-T 붨틩쫩 (03/2006)
룦뺯횸쪾탅뫅 춼 7-1/ꎭTDM-IP맊헏맜샭뗄릦쓜탔쏨쫶 튵컱쇷맜샭랽쏦 IP쇷뛔폚쯹폐뗄TDM솬뷓펦룃쓜쳡릩쯹탨뗄QoSꎬ뮹컱뇘쓜싺ퟣ쯹뒫쯍뗄쯹폐TDM솬뷓믡뻛뗄듸뿭튪쟳ꆣ 죧맻IP췸싧틑뺭뻟놸내RFC 2474[26]쳡릩닮뇰럾컱뗄쓜솦ꎬ쓇쎴펦룃쪹폃RFC 3246[27]맦뚨뗄뻟폐쫊떱튵컱쇷뗷뿘뗄볓쯙랢뗄훰쳸탐캪ꎨEF PHB)ꎬ틔쳡릩뗍쪱퇓뫍ퟮ킡뚶뚯뗄럾컱ꆣ헢샯붨틩ꎺIP췸싧펦짔캢맽솿엤놸ꆣ 죧맻IP췸싧쓜릻내RFC 2210 [28]쳡릩ퟛ뫏럾컱ꎬ쓇쎴펦룃쪹폃RFC 2212 [29]뗄놣횤뗄럾컱ꎨGS)ꎬ늢쪹듸뿭뗄풤쇴듳폚믡뻛뗄TDM튵컱쇷ꎬ틔놣횤돤ퟣ뗄듸뿭뫍폐뷧뗄쪱퇓ꆣ 평췸싧틽죫뗄웚췻뗄쪱퇓펦룃퓚튵컱쇷횮잰풤쿈닢솿ꎬ틔맀쯣랴펦쪱볤ꆣ떫헢훖닢솿뷶퓚럾컱쳡릩짌뛔IP췸싧뗄뢺뫉뷸탐맜샭뗄쟩뿶쿂닅쫇폐틢틥뗄ꆣ IWF뗄솬뷓퓊탭뿘훆 떱쓜릻쳡릩듸뿭놣횤쪱ꎬIWF펦룃쳡릩솬뷓뗄탭뿉뿘훆ꆣ탭뿉뗄뻶뚨뇘탫믹폚IP췸싧ퟜ뗄듸뿭럖엤ꆢ떱잰헽평뮥춨쇷뫍IP췸싧웤쯻뿍뮧쿻뫄뗄듸뿭틔벰놻쟫쟳뗄듸뿭ꆣ떱폐ퟣ릻뗄듸뿭뿉폃쪱ꎬ쟫쟳뗃떽탭뿉ꆣ떱듸뿭늻돤럖쪱ꎬTDM뗄솬뷓쟫쟳컱뇘놻뻜뻸ꆣ ITU-T 붨틩쫩 (03/2006) 9
8 TDM-IP췸싧뮥춨릦쓜ퟩ뗄뾼싇 춼8-1쪾돶TDM-IP췸싧뮥춨릦쓜뗄럖ퟩꆣ IP UDP 죎톡뗄뚨쪱탅쾢 춨폃뮥춨횸쪾폯 TDM 폐킧뢺뫉 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 8-1/ꎭTDM-IP 뮥춨뗄릦쓜탔럖ퟩ IP 헢튻ퟖ뛎쫇뇪ힼ뗄IPv4 [11] 믲 IPv6 [12]뗄냼춷ꆣ UDP 평폚뿉쓜탨튪퓚솽룶IP뗘횷횮볤뒫쯍뛠룶럂헦뗄TDM쇷ꎬ탨튪폐튻훖랽램살뇪볇룷TDM-IP쇷ꆣ퓚놾붨틩쫩훐뷶뾼싇쇋헢훖뇪볇뗄죋릤엤훃ꆣ룃뇪볇뿉틔내RFC 768 [13]럅훃퓚UDP뗄풴뛋뿚ퟖ뛎ꎬ믲헟UDP쒿뗄뛋뿚ퟖ뛎ꆣ떱쪹폃풴뛋뿚ퟖ뛎쪱ꎬ쒿뗄뛋뿚ퟖ뛎뿉틔럅죫튻룶쪶뇰싫살횸쪾헢쫽뻝냼냼몬뗄쫇TDM쫽뻝ꆣ 춨폃뮥춨횸쪾폯 춨폃뮥춨횸쪾폯훐뗄릦쓜폫뮥춨쇷쿠맘ꎬ늢쟒뛀솢폚죎뫎쳘뚨뗄럾컱믲냼ힰꆣ튻냣뗘ꎬ춨폃뮥춨횸쪾폯냼몬폐뿘훆ퟖ뛎ꆢ럖뛎ퟖ뛎ꎨFRAGꎩꆢ뎤뛈ퟖ뛎뫍탲뫅ퟖ뛎ꎬ죧춼8-2쯹쪾ꆣ 뇈쳘 8 7 6 5 4 3 2 1 뿘훆 럖뛎 뎤뛈 탲뫅ꎨ2룶ퟖ뷚ꎩ 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 8-2/ꎭ춨폃뮥춨횸쪾폯 뿘훆ퟖ뛎 뿘훆ퟖ뛎뗄룱쪽죧춼8-3쯹쪾ꆣ 뇈쳘 8 7 6 5 4 3 2 1 놣쇴 L R M 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 8-3/ꎭ뿘훆ퟖ뛎 놣쇴뗄ퟖ뛎탫훃캪 0ꆣ 10 ITU-T 붨틩쫩 (03/2006)
헢LꆢR뫍Mퟖ뛎쫇퓚IWF횮볤쳡릩튻훖뒫쯍TDM맊헏횸쪾뗄쫖뛎ꆣ쯼쏇뗄쪹폃펦룃ퟱ헕폐맘닙ퟷꆢ맜샭뫍캬뮤ꎨOAM)뗄ITU-T G쾵쇐뗄쫊떱붨틩쫩룸돶뗄풭퓲ꆣ L 놾뗘TDM맊헏ꎺL뇈쳘죴놻짨훃ꎨ벴L=1ꎩꎬ쯼횸쪾죫뿚뗄IWF틑뺭놻볬닢떽ꎬ믲헟놻춨횪떽폐펰쿬TDM쫽뻝뗄맊헏ꆣ퓚L뇈쳘놻짨훃쪱ꎬ쫽뻝냼뗄쓚죝뻍쎻폐틢틥쇋ꎬ뿉틔붫폐킧뢺뫉틖훆힡틔놣듦듸뿭ꆣ튻떩짨훃ꎬ퓚TDM닮듭놻뻀헽쪱ꎬ탫붫L뇈쳘쟥돽ꆣ R 풶돌뷓쫕맊헏ꎺR뇈쳘죴놻짨훃ꎨ벴R=1ꎩꎬ쯼횸쪾쫽뻝냼뗄풴뗣캴퓚듓IP췸싧뷓쫕쫽뻝냼ꆣ틲듋R뇈쳘뗄짨훃횸쪾뗄쫇랴랽쿲뗄맊헏ꆣ헢튻횸쪾뿉틔폃폚룦횪IP췸싧뗄펵죻믲웤쯻뗄췸싧닮듭ꆣR뇈쳘탫퓚풤쿈짨훃뗄쮳탲뗄쫽뻝냼쫽쎻폐쫕떽뫳짨훃ꎬ늢퓚쫽뻝냼퓙듎쫕떽뫳ꎬ솢벴쟥돽ꆣ M 맊헏탞헽싫ꎺMퟖ뛎뗄쪹폃쫇죎톡뗄ꎬ떱놻쪹폃쪱ꎬ쯼늹돤L뇈쳘뗄틢틥ꆣ 떱L놻쟥돽쪱ꎨ횸쪾TDM쫽뻝폐킧ꎩꎬMퟖ뛎뗄쪹폃죧쿂ꎺ M 0 0 횸쪾쎻폐뛔놾뗘맊헏뗄탞헽ꆣ 0 1 놣쇴ꆣ 1 0 놨룦퓚죫뿚IWF뗄TDM쫤죫뒦뷓쫕떽RDIꆣ 1 1 놣쇴ꆣ 떱L놻짨훃쪱ꎨ횸쪾TDM쫽뻝컞킧ꎩꎬMퟖ뛎뗄쪹폃죧쿂ꎺ M 0 0 횸쪾튻룶TDM맊헏ꎬ헢튻맊헏펦룃뒥랢퓚풶뛋닺짺튻룶AISꆣ 0 1 횸쪾뿕쿐뗄TDM쫽뻝ꎬ쯼늻펦틽웰죎뫎룦뺯ꆣ죧맻폐킧뢺뫉놻틖훆ꎬ펦룃퓚돶뿚짺돉쫊떱뗄뿕쿐싫ꆣ 1 0 횸쪾돶쇋듭뗄떫폐뿉쓜쓜믖뢴뗄TDM쫽뻝ꆣ헢튻횸쪾뗄쪹폃뮹듽퇐뺿ꆣ 1 1 놣쇴ꆣ 럖뛎ퟖ뛎 헢튻ퟖ뛎폃폚붫뢴횡뷡릹럖뛎돉뛠룶쫽뻝냼ꎬ죧춬뗚뷚쯹쏨쫶뗄쓇퇹ꆣ헢튻ퟖ뛎뗄쪹폃죧쿂ꎺ FRAG 0 0 쯼횸쏷ꎺ헻룶ꎨ캴럖뛎뗄ꎩ뢴횡뷡릹퓚떥룶쫽뻝냼훐퓋퓘ꆣ 0 1 쯼횸쏷ꎺ쫽뻝냼킯퓘뗄쫇뗚튻룶럖뛎ꆣ 1 0 쯼횸쏷ꎺ쫽뻝냼킯퓘뗄쫇ퟮ뫳튻룶럖뛎ꆣ 1 1 쯼횸쏷ꎺ쫽뻝냼킯퓘뗄쫇훐볤뗄럖뛎ꆣ 뎤뛈ퟖ뛎 떱튻룶IP냼퓚틔첫췸짏뒫쯍쪱ꎬ튪쟳냼뗄ퟮ킡뎤뛈캪64룶냋뇈쳘ퟩꆣ캪쇋듯떽헢튻ퟮ킡냼뎤뛈ꎬ뿉쓜탨튪뛔뮥춨쫽뻝냼뗄폐킧뢺뫉뷸탐쳮돤ꆣ쳮돤뎤뛈뿉틔듓뎤뛈ퟖ뛎살좷뚨ꎬ쪹뗃헢쳮돤뿉틔퓚돶뿚뒦돩좥ꆣ ITU-T 붨틩쫩 (03/2006) 11
뎤뛈ퟖ뛎횸쪾IP냼폐킧뢺뫉틔냋뇈쳘ퟩ볆쯣뗄뎤뛈ꎬ쯼뗄쫽횵쫇틔쿂룷늿럖뗄ퟜ뫍ꎺ a) 춨폃뮥춨횸쪾폯뗄뎤뛈ꎨ4룶냋뇈쳘ퟩꎩꎻ b) 죎톡뗄뚨쪱탅쾢뗄뎤뛈ꎻ뫍 c) 폐킧뢺뫉뗄뎤뛈ꎬ 돽럇헢튻ퟜ뫍뗈폚믲뎬맽64룶냋뇈쳘ퟩꎬ뛸퓚쓇킩쟩뿶쿂ꎬ뎤뛈ퟖ뛎뇘탫훃캪 0ꆣ 탲뫅ퟖ뛎 탲뫅ퟖ뛎쫇튻룶솽룶냋뇈쳘ퟩ뗄ퟖ뛎ꎬ폃폚볬닢뚪쪧쫽뻝냼뫍냼뗄쮳탲닮듭ꆣ 탲뫅뗄뿕볤쫇튻룶16뇈쳘ꎬ컞럻뫅톭뮷뗄뿕볤ꎬ쯼뗄짨훃폫뒦샭뚨틥죧쿂ꎺ 탲뫅ퟖ뛎뗄짨훃 틔쿂맦돌쫊폃폚죫뿚IWFꎨTDM떽IP랽쿲ꎩꎺ • 뛔폚튪퓚뮥춨쇷짏랢쯍뗄뗚튻룶IP냼ꎬ탲뫅펦룃훃돉튻룶쯦믺쫽횵ꆣ 16• 뛔폚쯦뫳뗄쎿튻룶IP냼ꎬ웤탲뫅뇘탫내쒣2뗝퓶1ꆣ 탲뫅뗄뒦샭 탲뫅뒦샭뗄쒿뗄쫇볬닢냼뗄뚪쪧뫍쮳탲닮듭ꆣ뛔폚뚪쪧뗄쫽뻝냼뗄뒦샭붫퓚뗚11뷚훐쳖싛ꆣ쮳탲닮듭뗄쫽뻝냼ꎬ횻튪뿉쓜ꎬ펦룃훘탂업탲ꆣ볬닢쫽뻝냼뚪쪧뗄믺훆쫇쪵쿖쯹쳘뚨뗄ꆣ 틔쿂맦돌쫊폃폚돶뿚IWFꎨIP떽TDM랽쿲ꎩꎺ • 돶뿚IWF펦놣돖튻룶웚췻뗄탲뫅ꆣ • 듓IP췸싧뷓쫕뗄뗚튻룶쫽뻝냼ퟜ펦룃뾼싇쫇웚췻뗄쫽뻝냼ꎬ쯹웚췻뗄탲뫅뻍뗈폚쯼뗄탲뫅ꆣ 16• 죧맻탲뫅뗈폚믲ꎨ퓚톭뮷뗄틢틥짏ꎩ듳폚웚췻뗄탲뫅ꎬ쓇쎴웚췻뗄탲뫅붫훃캪뷓쫕뗄탲뫅내쒣2뗝퓶1ꎬ럱퓲웚췻뗄탲뫅늻뇤ꆣ 죎톡뗄뚨쪱탅쾢 죎톡뗄뚨쪱탅쾢뿉틔폃RFC 3550[24]뚨틥뗄RTP냼춷킯퓘ꆣ 죧맻쪹폃쇋ꎬ헢RTP냼춷탫돶쿖폚쎿튻룶뮥춨쫽뻝냼횮훐ꎬ쯼뷴쯦폚UDP/IP냼춷횮뫳ꎬ늢퓚춨폃뮥춨횸쪾폯ퟖ뛎횮잰ꆣ TDM 폐킧뢺뫉 TDM폐킧뢺뫉뗄룱쪽퓚뗚9뷚훐쾸쫶ꆣ 냼ힰ룱쪽ퟜ뷡 놾뷚쳡릩솽훖냼ힰ룱쪽ꎬ튻훖폃폚쎻폐RTP냼춷쪱ꎨ닎볻춼8-4ꎩꎬ쇭튻훖폃폚RTP냼춷듦퓚쪱ꎨ닎볻춼8-5ꎩꆣ 12 ITU-T 붨틩쫩 (03/2006)
뇈쳘 냋뇈쳘ퟩ 8 7 6 5 4 3 2 1 IP냦놾IHL1IP TOS 2 ퟜ뎤뛈3-4쪶뇰싫5-6뇪볇 럖뛎뗄욫훃 7 8듦믮쪱볤 (TTL) 9 킭틩10IP냼춷킣퇩뫍11-12풴IP뗘횷13-16쒿뗄IP뗘횷 17-20 풴UDP뛋뿚뫅21-22쒿뗄UDP뛋뿚뫅23-24UDP뎤뛈25-26UDP킣퇩뫍 27-28 놣쇴 LR M 29FRAG 뎤뛈30탲뫅31-32쫊엤뗄폐킧뢺뫉 33-n 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 8-4/ꎭ늻쪹폃RTP쪱뗄냼ힰ룱쪽? 잰20룶냋뇈쳘ퟩ쫇IP냼춷ꎬ냋뇈쳘ퟩ21떽28쫇UDP냼춷ꆣ냋뇈쳘ퟩ29떽32쫇춨폃뮥춨횸쪾폯ꆣ 룷ퟖ뛎뗄쏨쫶죧쿂ꎺ IP 냦놾ꎬ냋뇈쳘ퟩ1ꎬ뇈쳘 8 떽 5 횸쪾IP냦놾뫅ꎬ샽죧뛔폚IPv4ꎬIP 냦놾 = 4ꆣ IHLꎬ냋뇈쳘ퟩ1ꎬ뇈쳘4 떽 1 횸쪾IP냼춷뗄뎤뛈ꎨ내32뇈쳘뗄싫ퟖ볆쫽ꎩꎬ샽죧 IHL = 5ꆣ IP TOSꎬ냋뇈쳘ퟩ2 횸쪾IP럾컱샠탍ꆣ ퟜ뎤뛈ꎬ냋뇈쳘ퟩ 3 뫍 4 횸쪾냼춷뫍IP폐킧뢺뫉뗄뎤뛈ꎨ틔냋뇈쳘ퟩ볆쫽ꎩꆣ 쪶뇰싫ꎬ냋뇈쳘ퟩ 5 뫍 6 IP럖뛎뗄쪶뇰ퟖ뛎[11]ꆣ 뇪볇ꎬ냋뇈쳘ퟩ 7ꎬ뇈쳘 8 떽 6 횸쪾IP뿘훆뇪볇ꎬ튪뇜쏢럖뛎탫붫뇪볇훃캪ꎺ뇪볇 = 010 ꆣ 럖뛎욫훃ꎬ냋뇈쳘ퟩ 7ꎬ뇈쳘 5 떽 1 뫍 냋뇈쳘ퟩ 8 횸쪾럖뛎퓚쫽뻝놨훐캻폚뫎뒦ꎬ캴쪹폃ꆣ ITU-T 붨틩쫩 (03/2006) 13
듦믮쪱볤ꎬ냋뇈쳘ퟩ 9 횸쪾IP TTLퟖ뛎ꆣ퓚헢튻ퟖ뛎캪0뗄쫽뻝놨펦룃뚪웺ꆣ 킭틩ꎬ냋뇈쳘ퟩ 10 횸쪾킭틩샠탍ꎬ떱뇭쪾UDP쪱탫훃캪 0x11 ꎨ튲벴쪮쇹뷸훆뗄 11ꎩꆣ IP냼춷킣퇩뫍ꎬ냋뇈쳘ퟩ 11 뫍 12 횸쪾IP냼춷뗄킣퇩뫍ꆣ 풴 IP 뗘횷ꎬ냋뇈쳘ퟩ 13 떽 16 횸쪾풴IP뗘횷ꆣ 쒿뗄IP뗘횷ꎬ냋뇈쳘ퟩ 17 떽 20 횸쪾쒿뗄IP뗘횷ꆣ 풴뛋뿚뫅ꎬ냋뇈쳘ퟩ 21 뫍 22ꎬ쒿뗄뛋뿚뫅ꎬ냋뇈쳘ퟩ 23 뫍 24 헢킩ퟖ뛎훐뗄죎뫎튻룶뚼뿉틔캩튻뗘뇪쪶튻룶튪뒫쯍뗄쳘뚨뗄TDM쇷ꆣUDP쇷탫폃죋릤엤훃ꆣ 떱풴뛋뿚폃폚뇪쪶TDM쇷쪱ꎬ쒿뗄뛋뿚뫅뿉폃폚쪶뇰럻뫏놾붨틩쫩뗄UDP냼ꆣ 떱폃폚ퟷ캪TDM쇷뗄쪶뇰싫쪱ꎬUDP뛋뿚뫅탫듓뚯첬럖엤뗄UDP뛋뿚뫅뗄랶캧짏ꎨ49 152 떽 65 535ꎩ톡좡ꆣ 쫇톡퓱풴뛋뿚ퟖ뛎뮹쫇쒿뗄뛋뿚ퟖ뛎ퟷ캪TDM쇷뗄쪶뇰싫붫좡뻶폚뻟쳥뗄쪵쿖ꎬ떫죫뿚뫍돶뿚뗄IWF뇘탫뛔톡퓱좡뗃튻훂ꆣ UDP 뎤뛈ꎬ냋뇈쳘ퟩ 25 뫍 26 횸쪾UDP냼춷뫍UDP폐킧뢺뫉틔냋뇈쳘ퟩ볆쯣뗄뎤뛈ꆣ UDP 킣퇩뫍ꎬ냋뇈쳘ퟩ 27 뫍 28 횸쪾UDP/IP 냼춷폫폐킧뢺뫉뗄킣퇩뫍ꆣ죧맻쎻폐볆쯣ꎬ쯼컱뇘훃캪 0ꆣ 놣쇴ꎬ냋뇈쳘ퟩ 29ꎬ뇈쳘 8 떽 5 횸쪾튻룶놣쇴ퟖ뛎ꎬ쯼탫놻훃캪 0 ꆣ LꎬR 뫍 Mꎬ냋뇈쳘ퟩ 29ꎬ뇈쳘 4 떽 1 닎볻뗚뷚ꆣ FRAGꎬ냋뇈쳘ퟩ 30ꎬ뇈쳘 8 뫍 7 닎볻뗚뷚ꆣ 뎤뛈ꎬ냋뇈쳘ퟩ 30ꎬ뇈쳘 6 떽 1 닎볻뗚뷚ꆣ 탲뫅ꎬ냋뇈쳘ퟩ 31 뫍 32 닎볻뗚뷚ꆣ 떱돶쿖RTP냼춷쪱ꎬ쫽뻝냼뗄룱쪽펦죧춼8-5쯹쏨쫶ꆣ 14 ITU-T 붨틩쫩 (03/2006)
뇈쳘 냋뇈쳘ퟩ 8 7 6 5 4 3 2 1 IP 냦놾IHL1IP TOS 2 ퟜ뎤뛈3-4쪶뇰싫5-6뇪볇 럖뛎욫훃 7 8듦믮쪱볤 (TTL) 9 킭틩10IP 냼춷킣퇩뫍11-12풴IP뗘횷13-16쒿뗄IP뗘횷17-20 풴UDP뛋뿚뫅21-22쒿뗄UDP뛋뿚뫅 23-24UDP 뎤뛈25-26UDP 킣퇩뫍27-28 RTV P XCC 29뇪횾PT30RTP 탲뫅31-32RTP 쪱듁33-36 SSRC 쪶뇰싫37-40놣쇴 RL M 41 FRAG 뎤뛈42탲뫅43-44쫊엤뗄폐킧뢺뫉 45-n 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 8-5/ꎭ쪹폃RTP쪱뗄냼ힰ룱쪽 짏쏦쎻폐쏨쫶떽뗄ퟖ뛎뿉쏨쫶죧쿂ꎺ RTP냼춷뗄ퟖ뛎탫쪹폃죧쿂ꎺ • RTV ꎨ냦놾ꎩퟜ쫇짨훃캪 2ꆣ • P ꎨ쳮돤ꎩꆢXꎨ춷늿삩햹ꎩꆢCCꎨCSRC 볆쫽ꎩ뫍Markꎨ뇪횾ꎩퟜ쫇훃캪 0ꆣ쿠펦뗘RTP춷늿삩햹ꆢ쳮돤뫍릩돶춬늽풴듓늻쪹폃ꆣ • PT ꎨ폐킧뢺뫉샠탍ꎩ뗄쪹폃죧쿂ꎺ a) 탫듓뮥춨쇷쎿룶랽쿲뗄뚯첬쫽횵랶캧캪PT럖엤튻룶횵ꆣ b) 죫뿚IWF탫붫RTP냼춷훐뗄PTퟖ뛎짨캪헢럖엤뗄쫽횵ꆣ • RTP탲뫅탫뗈폚춨폃뮥춨횸쪾폯훐뗄탲뫅ꆣ • RTP쪱듁붫폃살뺭평췸싧퓋퓘뚨쪱탅쾢ꎺ a) 쯼쏇뗄쫽횵내RFC 3550[24]붨솢뗄맦퓲살짺돉ꆣ b) 폃폚닺짺쪱듁뗄쪱훓욵싊펦룃쫇8 kHz뗄헻쫽놶ꆣ뛔폚헢튻쪱훓욵싊뗄잡떱톡퓱ꎬ뢽슼컥/ [3]쳡릩쇋튻룶횸쓏ꆣ ITU-T 붨틩쫩 (03/2006) 15
• RTP냼춷훐뗄SSRC ꎨ춬늽풴ꎩ쪶뇰싫ퟖ뛎뿉틔폃폚볬닢듭컳뗄솬뷓ꆣ 9 폐킧뢺뫉룱쪽 뗚뷚맦랶쇋튻훖폐킧뢺뫉룱쪽폃폚뷡릹늻쏷뗄뒫쯍ꎬ뛸뗚뷚뚨틥쇋솽훖폐킧뢺뫉룱쪽폃폚쪶뇰뷡릹뗄뒫쯍ꆣ뗚뷚쮵쏷뷡릹쯸뚨뗄냼ힰꎬ뛸뗚뷚쮵쏷믹폚AAL샠탍1뗄틑횸쏷뷡릹뗄냼ힰꎬ쯼퓚ITU-T 붨틩쫩 [23]뫍ATM싛첳CES [30]훐뚨틥ꆣ 뷡릹늻쏷뗄뒫쯍 뷡릹늻쏷뗄뒫쯍췪좫늻샭닇TDM뗄죎뫎뷡릹ꎬ폈웤쫇ITU-T 붨틩쫩[20]뇪ힼTDM돉횡쯹튪쟳뗄뷡릹ꆣ 폃폚뷡릹늻쏷뒫쯍뗄폐킧뢺뫉룱쪽횧돖뗚뷚cꆢd뫍e쿮튪쟳뗄쯹폐TDM럾컱ꆣ 뛔폚뷡릹늻쏷뗄뒫쯍ꎬ뿉틔쪹폃죎틢만뚨뎤뛈뗄TDM럖뛎ꎬ늻짦벰ퟖ뷚믲횡뗄춬늽ꆣTDM럖뛎뗄냋뇈쳘ퟩ쫽ꎺ • 탫쫇풤쿈엤훃뗄ꎻ • 퓚솽룶랽쿲짏탫쿠춬ꎻ춬쪱 • 퓚TDM폐킧쫽뻝솬뷓뗄짺쏼웚쓚탫놣돖늻뇤ꆣ 뛔폚쎿룶쫽뻝냼냋뇈쳘ퟩ쫽뗄잡떱톡퓱ꎬ뢽슼죽훐룸돶쇋횸떼ꆣ 떱L뇈쳘놻짨훃쪱ꎬTDM-IP뿉틔뫶싔컞킧뗄TDM폐킧뢺뫉ꎬ틔놣듦듸뿭ꆣ 쎿떱튻룶쫽뻝냼뚪쪧쪱ꎬ믲헟뷓쫕뗃첫췭컞램쪹폃쪱ꎬ믲헟뷓쫕쪱쯹듸뗄L뇈쳘놻짨훃쪱ꎬ돶뿚뗄IWF뚼탫닺짺쫊떱쫽솿뗄AIS쯍췹쯼뗄TDM뷓뿚ꆣ 힢 ꆪ 퓚틔쿂뗚뷚훐쏨쫶뗄AAL샠탍1뗄쪹폃튲뿉틔폃폚뷡릹늻쏷뗄뒫쯍ꆣ헢퇹ퟶ뿉쓜폐뫃뒦뗄샽ퟓ폐폫믹폚ATM뗄뗧슷쒣쓢쾵춳뮥춨ꎬ믲헟떱쪹폃믹폚SRTS뗄쪱훓믖뢴쪱ꆣ 냋뇈쳘ퟩ킣ힼ뗄DS1폐킧뢺뫉룱쪽 DS1뗧슷뿉틔죧뢽볾 B/ [31]쯹쏨쫶뗘쳮돤돉냋뇈쳘ퟩ뗄헻놶쫽뒫뗝룸죫뿚IWFꆣ틔헢훖룱쪽ꎬ폐킧뢺뫉평헻쫽룶25룶냋뇈쳘ퟩ뗄ퟓ횡ퟩ돉ꎬ쎿룶ퟓ횡평193뇈쳘뗄TDM쫽뻝뫍7뇈쳘뗄쳮돤릹돉ꎬ죧쿂쏦춼9-1쯹쪾ꎺ 뇈쳘 8 7 6 5 4 3 2 1 TDM 쫽뻝뗚1룶냋뇈쳘ퟩ TDM 쫽뻝뗚2룶냋뇈쳘ퟩ … TDM 쫽뻝뗚23룶냋뇈쳘ퟩ TDM 쫽뻝뗚24룶냋뇈쳘ퟩ *** 7룶쳮돤뇈쳘 *** TDM쫽뻝ퟮ뫳뗄뇈쳘 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 9-1/ꎭ냋뇈쳘ퟩ킣ힼ뗄DS1폐킧뢺뫉룱쪽 16 ITU-T 붨틩쫩 (03/2006)
쪶뇰뷡릹뗄뒫쯍 쪶뇰뷡릹뗄뒫쯍붫춨맽퓚돶뿚뗣퓙짺횡춬늽탅뫅ꎨFASꎩ놣돖풶돌TDM뷓뿚뗄헽좷닙ퟷꎬ늢춨맽뷡릹쯸뚨믲뷡릹횸쪾놣돖TDM뷡릹뗄췪헻탔ꆣ 쎿떱튻룶쫽뻝냼뚪쪧쪱ꎬ믲헟뷓쫕뗃첫췭컞램쪹폃쪱ꎬ믲헟뷓쫕쪱쯹듸뗄L뇈쳘놻짨훃쪱ꎬ돶뿚뗄IWF탫닺짺쫊떱쫽솿뗄쳮돤쫽뻝살놣돖TDM뚨쪱뫍FASꆣ쯤좻닥죫죎틢뗄쳮돤쫽뻝뛔폚놣돖TDM뚨쪱뿉쓜쫇ퟣ릻뗄ꎬ떫쯼뿉쓜떼훂TDM훐뗧뮰뮰틴탅뗀뿉룐횪훊솿뗄쿂붵ꆣ틀뻝웚췻뗄냼뚪쪧냙럖뇈ꎬ뿉쓜폐뇘튪닉폃냼뚪쪧뗄틾쓤ꎨPLCꎩ믺훆ꆣ 쪶뇰뷡릹뒫쯍뗄폐킧뢺뫉룱쪽횧돖뗚뷚d뫍e쿮튪쟳뗄쯹폐TDM럾컱ꆣ 뷡릹쯸뚨뗄냼ힰ 쯹폐쫽뻝냼탫킯퓘춬퇹쫽솿뗄TDM쫽뻝ꆣ틲듋퓚튻룶냼훐쳮ힰTDM쫽뻝쯹탨뗄쪱볤ퟜ쫇쿠춬뗄ꆣ 돶뿚뗄IWFꎬ죧맻틲쫕떽튻룶듸폐L뇈쳘놻짨훃뗄쫽뻝냼탨튪듺횮틔쳮돤쫽뻝쪱ꎬ탫놣횤쿲TDM췸싧랢쯍쫊떱뗄FAS뇈쳘[20]ꆣ 뛔폚뗚뷚훐d쿮쯹쇐뗄럾컱ꎬ냼뗄폐킧뢺뫉쫇평헻쫽쫽솿뗄튻킩횡ퟩ돉ꎬ늢퓚뗚튻룶횡뗄뗚튻룶냋뇈쳘ퟩ뛔웫ꆣ죧맻냼폐킧뢺뫉평M룶횡릹돉ꎬힰ냼뗄쪱퇓붫캪M놶뗄125캢쏫ꎨ125 µsꎩꆣ 뛔폚뗚뷚훐e쿮쯹쇐뗄럾컱ꎬ냼뗄폐킧뢺뫉뿉평튻룶췪헻뗄뢴횡ퟩ돉ꆣ뮻튻훖ퟶ램ꎬ튲뿉틔붫헢뢴횡뷸탐럖뛎ꎬ럖돉캪헻쫽룶뗈뎤뗄럖뛎ꎻ퓚듋쎿룶럖뛎뗄뗚튻룶냋뇈쳘ퟩ쫇튻룶횡뗄뗚튻룶냋뇈쳘ퟩꆣ룷룶럖뛎붫훃폚럖뇰뗄쫽뻝냼훐ꎬ럖뛎붫죧뗚뷚쯹쏨쫶뗄ꎬ평춨폃뮥춨횸쪾폯훐뗄FRAGퟖ뛎횸쪾ꆣCAS탅쇮탅쾢탫ퟷ캪쏅뗄ퟓ뷡릹ꎬ죧쿂쯹쪾뗘뢽볓퓚뫳ꆣ • 폐4룶CAS뇈쳘럖쫴폚쮳탲뗄룷룶쪱쾶ꎬ럅훃퓚탅쇮ퟓ뷡릹훐ꎬ죧춼9-3쯹쪾ꎻ • 평뇭1/ [20]쯹뇪쪶뗄CAS뇈쳘AꆢBꆢC뫍D퓚헢냫ퟖ뷚훐붫틀듎ퟔퟮ룟캻뇈쳘업떽ퟮ뗍캻뇈쳘ꎻ • 죧맻쪱쾶뗄쫽솿쫇웦쫽ꎬ탫튪뢽볓튻럝쳮돤ꎬ틔놣돖냋뇈쳘ퟩ춬늽ꎻ • 죧맻헢뢴횡뷡릹놻럖캪벸룶쫽뻝냼ꎬ헢탅쇮ퟓ뷡릹붫ퟜ쫇뢽볓퓚헢뷡릹뗄ퟮ뫳쓇룶럖뛎짏ꆣ 뗃떽뗄폐킧뢺뫉룱쪽죧틔쿂춼9-2뫍춼9-3쯹쪾ꆣ ITU-T 붨틩쫩 (03/2006) 17
횡 뇈쳘 8 7 6 5 4 3 2 1 쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 1 … 쫴폚쪱쾶N뗄뇈쳘 쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 2 … 쫴폚쪱쾶N뗄뇈쳘 ……쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 M … 쫴폚쪱쾶N뗄뇈쳘 힢 1 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 힢 2 ꆪ 쫽뻝냼냼몬M룶TDM횡ꎬ쎿횡훐폐N룶쪱쾶ꆣ 춼 9-2/ꎭ폐킧뢺뫉룱쪽ꎬ폃폚뷡릹쯸뚨뗄럢ힰ늢늻듸CAS ꎨIP냼늻킯듸탅쇮ퟓ뷡릹ꎩ 횡 뇈쳘 8 7 6 5 4 3 2 1 쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 1 … 쫴폚쪱쾶N뗄뇈쳘 쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 2 … 쫴폚쪱쾶N뗄뇈쳘 ……쫴폚쪱쾶1뗄뇈쳘 쫴폚쪱쾶2뗄뇈쳘 M … 쫴폚쪱쾶N뗄뇈쳘 쪱쾶1뗄탅쇮뇈쳘 쪱쾶2뗄탅쇮뇈쳘 쪱쾶3뗄탅쇮뇈쳘… 탅쇮ퟓ뷡릹 쪱쾶N뗄탅쇮뇈쳘 쳮돤 (닎볻힢3) 힢 1 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 힢 2 ꆪ 쫽뻝냼냼몬폐M룶쎿횡폐N룶쪱쾶뗄TDM횡ꎬ퓙볓짏탅쇮ퟓ뷡릹ꆣ 힢 3 ꆪ 죧맻N쫇웦쫽ꎬ튪볓4룶뇈쳘뗄쳮돤ꆣ 춼 9-3/ꎭ폐킧뢺뫉룱쪽ꎬ폃폚뷡릹쯸뚨뗄럢ힰ늢듸폐CAS ꎨIP냼킯듸탅쇮ퟓ뷡릹ꎩ 뷡릹횸쏷뗄냼ힰ 뛔폚헢훖냼ힰꎬTDM뇈쳘쇷ꎬ붫죧ITU-T 붨틩쫩[23]뫍ATM싛첳 CES [30]쯹쏨쫶뗄ꎬ닉폃AAL샠탍1뷸탐쫊엤탎돉48룶냋뇈쳘ퟩ뗄AAL샠탍1 SAR PDUꎬ헢훖PDU퓚 18 ITU-T 붨틩쫩 (03/2006)
쫽뻝냼뗄폐킧뢺뫉평튻믲뛠룶PDUퟩ돉ꎬ죧춼9-4뫍춼9-5쯹쏨쫶ꆣ쎿룶쫽뻝냼훐뗄PDU쫽솿ꎺ • 탫풤쿈엤훃ꎻ • 퓚솽룶랽쿲짏탫쿠춬ꎻ춬쪱 • 퓚TDM폐킧쫽뻝솬뷓뗄짺쏼웚쓚탫놣돖늻뇤ꆣ 폐맘쎿룶쫽뻝냼훐PDU쫽솿뗄톡퓱ꎬ뢽슼쯄훐붫룸돶횸떼ꆣ 뇈쳘 6 5 4 8 7 3 2 1 춨폃뮥춨횸쪾폯 PDU 폐킧뢺뫉 (48 룶냋뇈쳘ퟩ) 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 9-4/ꎭ뷡릹횸쏷뗄냼ힰꎬ쎿룶냼튻룶PDU 뇈쳘 5 8 7 6 4 3 2 1 춨폃뮥춨횸쪾폯 PDU폐킧뢺뫉 (48룶냋뇈쳘ퟩ) PDU폐킧뢺뫉 (48룶냋뇈쳘ퟩ) PDU폐킧뢺뫉 (48룶냋뇈쳘ퟩ) 힢 ꆪ 뇈쳘8쫇ퟮ룟캻뇈쳘ꆣ 춼 9-5/ꎭ뷡릹횸쏷뗄냼ힰꎬ쎿룶냼뛠룶PDU AAL샠탍1퓚뷡릹늻쏷뗄뫍쪶뇰뷡릹뗄쫽뻝뒫쯍볤볓틔쟸럖ꎬ쯼쏇뛔펦폚놾붨틩쫩훐뷡릹늻쏷뗄뒫쯍뫍뷡릹횸쏷뗄뒫쯍ꆣ 뛔폚뷡릹늻쏷뗄뒫쯍ꎬAAL샠탍1폫뗚뷚뗄랽램쿠뇈늢늻쳡릩죎뫎만폐뗄폅뗣ꎻ좻뛸믡폐탨튪쪹폃쯼뗄쟩뺰ꆣ샽죧ꎬ떱탨튪폫쿖폐AAL샠탍1뗄ATM뗧슷쒣쓢쾵춳뮥춨쪱ꎬ믲헟떱쪹폃믹폚AAL1쳘뚨믺훆뗄쪱훓믖뢴햼폅쫆쪱ꆣ 쎿튻룶48룶냋뇈쳘ퟩ뗄SAR PDU평튻룶SAR-PDU냼춷뫍튻룶SAR-PDU폐킧뢺뫉ퟩ돉ꆣ헢SAR-PDU냼춷훐몬폐튻룶믡뻛ퟓ닣뗄횸쪾ꎨCSIꎩ[23]뇈쳘ꎬ쯼뇭쪾붫돶쿖튻룶폐뷡릹쫽뻝뒫쯍뗄뷡릹횸헫ꎬ뮹뿉틔폃폚쪱훓믖뢴ꎨ닎볻뗚10뷚ꎩꆣ 뛔폚컞뷡릹뗄AAL샠탍1ꎬ쎿튻룶ퟓ횡뗄48룶냋뇈쳘ퟩ훐냼몬폐튻룶떥냋뇈쳘ퟩ뗄SAR-PDU냼춷뫍47룶냋뇈쳘ퟩꎨ376 뇈쳘ꎩ뗄TDM쫽뻝ꆣ 뛔폚쪶뇰뷡릹뗄뒫쯍ꎬATM싛첳CES [30]뚨틥쇋솽훖쒣쪽ꎬ뷡릹쒣쪽뫍듸폐CAS뗄뷡릹쒣쪽ꆣ뷡릹뗄AAL샠탍1킯퓘냋룶뇈쳘ퟩ춬늽뗄TDMꎬ늢춨맽퓚SAR-PDU냼춷훐잶죫튻룶횸헫살놣돖TDM뗄횡춬늽ꎬ헢횸헫횸쿲쿂튻룶횡뗄쪼뛋ꆣ듸폐CAS뗄뷡릹뗄AAL샠탍1킯퓘냋뇈쳘ퟩ춬늽뗄TDMꎬ늢춨맽잶죫튻룶횸쿲쿂튻룶뢴횡뾪뛋뗄횸헫살놣돖TDM횡뫍뢴횡뗄춬늽ꆣ듋췢쯼뮹냼몬듸폐CAS탅쇮뇈쳘뗄ퟓ뷡릹ꎨ닎볻뗚뷚ꎩꆣ ITU-T 붨틩쫩 (03/2006) 19
10 뚨쪱랽쏦 캪쇋놣돖튪쟳뗄탔쓜쮮욽ꎬTDM췸싧튪럖엤뚨쪱탅쾢ꆣ틲캪IP췸싧쎻폐만폐뗄뚨쪱럖엤믺훆ꎬ컱뇘튪쳡릩웤쯻뗄뚨쪱럖엤믲믖뢴뗄랽램ꆣ헢훖랽램늻쫴폚놾붨틩쫩뗄랶캧ꆣ?11 냼뚪쪧랽쏦 퓚IP췸싧훐튻뚨돌뛈뗄냼뚪쪧쫇늻뿉뇜쏢뗄ꎬ틲듋탫쳡릩쒳훖냼췪헻탔뗄믺훆ꆣ믻탎쫽뻝냼뫍냼쮳탲뗄듭싒튲뿉틔놻쫓캪뚪쪧ꆣ훘랢뛔폚TDM-IP뮥춨늻쫇튻룶뿉탐뗄톡쿮ꎬ틲뛸튪닉좡쫊떱뗄탐뚯살늹뎥냼뗄뚪쪧ꆣ 떱볬닢떽냼뚪쪧쪱ꎬIWF탫닥죫튪쟳쫽솿뗄AIS믲쳮돤쫽뻝쯍떽쒩뛋쾵춳틔놣돖TDM뗄뚨쪱ꆣ떱닉폃CAS쪱ꎬ캪쇋놣돖탅쇮뗄ힴ첬탫평쪶뇰뷡릹뗄믺훆맘힢ꆣ 뷡릹늻쏷뗄뒫쯍늻쓜쪶뇰뷡릹뗄뾪쿺ꎬ횻쫇붫쯼퓚TDM럖뛎훐춸쏷뗘뒫쯍ꆣ틲듋쳮돤쫽뻝튻냣뗘붫믡틽죫늻헽좷뗄FASꆣ춨맽붫냼돖탸쪱볤폫FAS훜웚쫊떱뗘뛔웫폐뿉쓜퓶잿FAS뗄췪헻탔ꆣ좻뛸쒩뛋쾵춳뗄뷓뿚붫죔좻믡맛달떽쿠펦쫽솿뗄컳싫뿩[8]ꆣ 뛔폚쪶뇰뷡릹뗄뒫쯍ꎬ뷡릹뾪쿺붫평IWF퓙짺ꆣ뷡맻ꎬIP췸싧훐쫽뻝냼뚪쪧뗄듦퓚붫퓚쒩뛋쾵춳뗄TDM뷓뿚짏놻췪좫뗘틾싷ꆣ 뛔폚퓋퓘뗧뮰춨슷뗄TDMꎬ닥죫쳮돤쫽뻝붫떼훂뿉룐횪뗄짹틴훊솿뗄쿂붵ꆣ틀뻝웚췻뗄냼뚪쪧냙럖싊ꎬ뿉쓜믡탨튪닉폃냼뚪쪧뗄틾쓤믺훆ꎨPLCꎩꆣPLC늻쫴폚놾붨틩쫩뗄랶캧ꆣ 12 뛔CAS뫍CCS뗄횧돖 퓚TDM췸싧짏믡닉폃CAS믲CCS뗄뗧뮰탅쇮ꎬ캪쇋쒩뛋쾵춳쓜헽뎣릤ퟷꎬ헢킩탅뫅컱뇘퓚IP췸싧짏뿉뾿뗘뒫쯍ꆣ 뛔CAS뫍CCS뗄뒦샭펦룃쫇춸쏷뗄ꎬ튲벴캪쇋헽좷뒫쯍헢훖탅쇮ꎬIWF늻탨튪쿪쾸샭뷢쒩뛋쾵춳뗄탅쇮킭틩ꆣ CAS뗄횧돖 CAS쫇ퟷ캪튻룶뇈쳘탲쇐퓚TDM횡훐퓋쯍뗄ꎬ헢룶뇈쳘탲쇐캩튻뗘폫쳘뚨뗄쪱쾶쿠솪쾵ꆣ 뗚뷚늻쏷뷡릹뗄뒫쯍늻쓜쪶뇰CAS뇈쳘ꎬ횻쫇퓚TDM럖뛎훐춸쏷뗘뒫쯍쯼쏇ꆣ틲듋떱듦퓚냼뚪쪧쪱ꎬ튪놣횤CAS뇈쳘뗄췪헻탔쫇늻뿉쓜뗄ꎬ뷡릹늻쏷뗄뒫쯍붫좡뻶폚쒩뛋쾵춳쓜뗖떲튻뚨쪱볤볤룴뗄컳싫ힴ뿶ꆣ 뗚뷚뷡릹쯸뚨뗄랽램춨맽퓚냼짏뢽볓튻룶쏷좷뗄CASퟓ뷡릹살좷놣CAS뗄췪헻탔ꎬ헢ퟓ뷡릹죧춼9-3쯹쪾ꆣ뗚뷚횸쏷뷡릹뗄랽램뿉틔튲뢽볓헢퇹튻룶CASퟓ뷡릹ꎬ믲헟좡뻶폚뢴횡춬늽살놣뮤CAS뇈쳘ꆣ CCS뗄횧돖 CCS뿉틔퓚TDM탅뫅뗄튻룶믲뛠룶쪱쾶훐ꎬퟷ캪튻룶틬늽뗄쿻쾢쇷ꎬퟮ춨뎣쫇ퟷ캪룟벶쫽뻝솴슷뿘훆ꎨHLDCꎩ횡살킯퓘뗄ꆣ 20 ITU-T 붨틩쫩 (03/2006)
헢훖탅뗀뿉쓜믡뎤쪱볤뿕쿐ꆣ퓚헢훖쟩뿶쿂ꎬ뿉틔닉폃뢽슼튻뚨틥뗄HDLC쒣쪽ꆣ 13 낲좫뾼싇 놾붨틩쫩늢캴닻쫶낲좫랽쏦뗄컊쳢ꆣ 뢽 슼 튻 죎톡뗄뛔믹폚HDLC뗄CCS탅뫅뗄뒦샭 HDLC쒣쪽뿉틔폫쪶뇰뷡릹뗄TDM뒫쯍쿠뷡뫏살쪹폃ꎬ틔뇣룟킧뗘뒫쯍폫훐볌쿠솪쾵뗄믹폚HDLC뗄CCSꎬ죧SS7[21]뫍ISDN PRI뗄탅쇮[22]ꆣ헢튻믺훆늢늻듲쯣폃폚튻냣뗄HDLC폐킧뢺뫉ꎬ뛸횻쫇횧돖뛌폚ퟮ듳PDU뎤뛈뗄HDLC쿻쾢ꆣ 헢훖HDLC쒣쪽뷶떱HDLC쇷뗄듳늿럖듸뿭평뿕쿐뇪볇햼폃쪱닅펦룃쪹폃ꆣ럱퓲CCS춨슷펦룃ퟷ캪튻냣탔쪱쾶살뒦샭ꆣ HDLC-IP뗄뮥춨탫뺭평럖뇰뗄뮥춨쇷춸쏷뗘뒫뗝쯹폐뗄HDLC쫽뻝뫍뿘훆쿻쾢ꆣ 퓚죫뿚뒦랢쯍웷뛔뇪볇뷸탐볠닢횱떽볬닢떽튻룶횡ꆣ횡뗄쓚죝놻좡돶ꎬ늢뷸탐횡킣퇩탲쇐ꎨFCSꎩ뗄닢쫔ꆣ죧맻헢FCS늻헽좷ꎬ헢횡뻍놻뚪웺ꎬ럱퓲헢횡붫퓚돵쪼뇪볇믲ퟮ훕뇪볇횮뫳랢쯍ꎬ춬쪱FCS틑뺭뚪웺ꎬ늢횴탐쇋쇣뗄즾돽ꎨ내헕 [32] ꎩꆣ퓚돶뿚뒦ꎬ붫뷸탐쇣뗄닥죫뫍FCS뗄훘탂볆쯣ꎬ튻룶폐킧뗄HDLC횡붫훘탂붨돉ꆣ 뢽 슼 뛾 IP췸싧탔쓜뗄볆솿 놾뢽슼쳖싛쒣쓢뗄TDM럾컱틲IP췸싧훐뗄닮듭뛸떼훂뗄쯰짋ꆣ쯼훷튪닻쫶뗗닣IP췸싧뗄탔쓜닎쫽뫍TDM럾컱뗄럾컱쯰짋볆솿횮볤뗄맘쾵ꎬ룃럾컱쯰짋벴ITU-T 붨틩쫩[8]훐뚨틥뗄컳싫쏫뫍퇏훘컳싫쏫틔벰ITU-T 붨틩쫩[33]훐뚨틥뗄뿉폃탔뇈싊ꆣ듋췢ꎬ튲뛔뮰틴탅뗀쳘뚨뗄탔쓜닢솿뷸탐쇋쳖싛ꆣ IP췸싧훐펰쿬TDM럾컱뗄닮듭 쎿떱IWF평폚쎻폐헦헽뗄TDM쫽뻝뿉폃뛸닺짺AIS믲쳮돤쫽뻝쪱ꎬTDM뗄탔쓜볆솿뻍붫쫜펰쿬ꆣ헢쟩뿶뿉쓜평IP췸싧3훖뿉틔쟸럖뗄뛱뮯퓬돉ꎬ뻟쳥캪ꎺ 1) IP췸싧훐뗄냼뚪쪧ꎻ 2) 쫽뻝냼평폚볬닢떽컳싫뛸놻뚪웺ꎻ뫍 3) 쫽뻝냼평폚뚶뚯뮺돥듦뒢웷짏틧/쿂틧뛸놻뚪웺ꆣ 헢3훖뛱뮯뿉틔폃ITU-T웤쯻붨틩쫩ꎨ샽죧ITU-T 붨틩쫩[34]ꎩ캪냼붻뮻췸싧뚨틥뗄볆솿뷸탐솿뮯ꆣ ITU-T 붨틩쫩 (03/2006) 21
ITU-T 붨틩쫩뚨틥쇋냼췸싧뫍훕뛋뗄탔쓜닎쫽ꎬ쯼쏇랴펳쇋폯틴뫍웤쯻뮰틴욵듸펦폃뿉룐횪뗄훊솿ꆣ쯼퓚뫜듳돌뛈짏벯훐폚쪱퇓뇤뮯뫍냼뚪쪧떼훂뗄훊솿쯰짋ꎬ헢솽헟쫇IP틔벰웤쯻믹폚냼뗄벼쫵쯹쳘폐뗄ꎬ떫늢늻돶쿖폚뒫춳뗄TDM췸싧훐ꆣ쯤좻ITU-T 붨틩쫩늢늻횱뷓헫뛔폚TDM럾컱ꎬ떫쓇샯뚨틥뗄쒳킩볆솿뿉틔펦폃폚TDM퓋퓘뗄뮰틴탅뗀ꆣ 냼뚪쪧싊 IP냼뚪쪧싊퓚ITU-T 붨틩쫩 [25]훐뚨틥ꆣ쎿튻룶뚪쪧뗄냼믡떼훂훘붨뗄TDM쇷훐뇈쳘컳싫뗄튻듎춻랢ꆣ 냼쪱퇓뇤뮯 IP냼쪱퇓뇤뮯ꎨPDVꎩ퓚ITU-T 붨틩쫩훐뚨틥ꆣ평폚PDV폃폚짨훃뚶뚯뮺돥듦뒢웷뗄뎤뛈ꎬ쓇킩쫽뻝냼폐뿉쓜믡떽듯뗃첫췭믲첫퓧뛸늻쓜뗷뷚ꆣ헢퇹뗄쫽뻝냼붫놻뚪웺늢내뚪쪧뒦샭ꎬ헢믡퓙튻듎떼훂훘붨TDM쇷훐뇈쳘컳싫뗄튻듎춻랢ꆣ퓚쒳킩쪵쿖훐ꎬ쯹폐듎탲믬싒뗄쫽뻝냼튲붫뚪웺ꎬ늢ퟷ캪뚪쪧뒦샭ꆣ 냼닮듭싊 IP냼닮듭싊퓚ITU-T 붨틩쫩훐뚨틥ꆣIP췸싧훐틽웰뗄뇈쳘컳싫춨뎣평뗚뛾닣뗄닮듭볬닢믺훆볬돶ꎬ뛸퓬돉쫽뻝냼뚪웺ꆣ헢믡떼훂TDM쇷훐뇈쳘컳싫뗄튻듎춻랢ꆣ뷏몱볻뗘ꎬ튻룶냼몬폐뇈쳘컳싫뗄쫽뻝냼믡뇜맽컳싫볬닢ꎬ늢횱뷓뗘릹돉TDM뗄뇈쳘컳싫ꆣ ퟜ뗄냼쯰쪧 ퟜ뗄냼쯰쪧싊퓚ITU-T 붨틩쫩 [34]훐뚨틥ꆣ짏쫶닮듭ꎨ냼뚪쪧ꆢ냼닮듭뫍맽듳뗄냼쪱퇓뇤뮯ꎩ훐뗄쎿튻훖뚼믡떼훂뚪쪧믲뚪웺쫽뻝냼ꎬ퓬돉TDM럾컱훐뇈쳘컳싫뗄튻듎춻랢ꆣITU-T 붨틩쫩뚨틥쇋IP췸싧훐헢킩닮듭샠탍뗄튻룶뫏돉뛈솿ꎬ쯼놻돆캪ꆰퟜ뗄냼쯰쪧ꆱꆣ 캪쇋놣돖뚨쪱뗄췪헻탔ꎬ돶뿚IWF튪퓚훘붨뗄TDM쇷훐닥죫쫊떱쫽솿뗄쳮돤쫽뻝ꆣ튪닥죫뗄쫽뻝평쪵쿖쯹뻶뚨ꆣ 폫TDM럾컱쯰짋볆솿뗄맘쾵 ITU-T 붨틩쫩[8]뚨틥쇋ꆰ컳싫쏫ꆱ뫍ꆰ퇏훘컳싫쏫ꆱꎬ쯼쏇쫇폫뿧풽TDM뗧슷뒫쯍뗄쫽뻝뗄췪헻탔쿠맘뗄탔쓜닎쫽ꆣ쿂쏦뗄쳖싛붫냑헢킩TDM뗄탔쓜뛈솿폫IP췸싧ퟜ뗄냼쯰쪧싊솪쾵웰살ꆣ 컳싫쏫뗄뇈싊 튻룶컳싫쏫쫇튻쏫훓뗄쪱볤볤룴ꎬ쯼듸폐튻룶믲뛠룶뇈쳘컳싫ꆣITU-T 붨틩쫩캪쎿튻훖TDM샠탍뻍뿉쓜컳싫뗄쏫뗄냙럖싊맦랶쇋뛋떽뛋횸뇪ꆣ 죧맻듳늿럖IP냼뗄뚪쪧믲뚪웺쫇튻킩뛀솢뗄쫂볾ꎬ쓇쎴쎿튻룶떥뛀뗄냼뚪쪧믲뚪웺뚼뿉쓜믡퓬돉튻룶컳싫쏫ꎬ틲뛸횻폐벫킡뗄ퟜ뗄냼쯰쪧싊닅쫇폫뗄쿞훆쿠돆뗄ꆣ폫횮쿠랴ꎬ죧맻듳뛠쫽뗄냼쯰쪧틔춻랢탎쪽돶쿖ꎬ탭뛠솬탸뗄쯰쪧쫂볾탎돉뗄쫇춬튻룶컳싫쏫ꎬ헢퇹뻍붫퓊탭룟뗃뛠뗄냼쯰쪧싊ꆣ헢훖탐캪뚨솿뗄쒣탍뒦샭뿉틔폃췸싧쒣탍살췪돉ꎬ샽죧폃뢽슼튻/훐쏨쫶뗄쒣탍ꆣ 퇏훘컳싫쏫튪쟳 튻룶퇏훘컳싫쏫뚨틥캪튻룶튻쏫훓뎤뗄쪱볤ꎬ웤볤쯹뷓쫕뗄TDM쫽뻝뿩훐ꎬ폐30%믲룼뛠뗄쫽뻝뿩쫇폐컳싫뗄ꆣITU-T 붨틩쫩뛔뿉쓜쫇퇏훘컳싫쏫뗄냙럖싊맦랶쇋뛋떽뛋뗄횸뇪ꆣ 22 ITU-T 붨틩쫩 (03/2006)
죧맻듳늿럖IP냼뗄뚪쪧믲뚪웺틔춻랢뗄탎쪽돶쿖ꎬ늢쟒헢킩춻랢폐ퟣ릻뗄돖탸쪱볤ꎬ쓇쎴퇏훘컳싫쏫죔뿉쓜뗃돶훘붨뗄TDM쇷ꆣ쿠랴뗘ꎬ맂솢뗄쯰쪧쫂볾떼훂뗄쫇뗍뗄퇏훘컳싫쏫뇈싊ꆣ췸싧뗄쒣탍뮯뿉틔퓙튻듎붫냼쯰쪧뫍럻뫏횮볤뗄쫽횵맘쾵쿔쪾돶살ꆣ 뿉폃탔튪쟳 헽죧ITU-T 붨틩쫩쯹뚨틥뗄ꎬꆰ늻뿉폃ힴ첬ꆱ퓚튻룶폐10룶솬탸뗄퇏훘컳싫쏫뗄쪱웚뾪뛋뒦뷸죫ꆣ뛸ꆰ뿉폃ힴ첬ꆱ퓚10룶솬탸쏫뗄튻룶쪱웚뗄쪼뛋믖뢴ꎬ헢10쏫훐쎻폐튻룶쫇퇏훘컳싫쏫ꆣ IP췸싧뗄뿉폃탔퓚ITU-T 붨틩쫩훐뚨틥ꎬ뿉틔폫TDM뿉폃탔뗄뚨틥쿠뮥맘솪ꆣ 뮰틴훊솿튪쟳 퓚IP췸싧짏킯퓘뗄TDM뿉쓜늻럻뫏ITU-T 붨틩쫩뗄컳싫횸뇪ꎬ뻟쳥좡뻶폚쿂닣IP췸싧뗄냼뚪쪧싊ꆣ 좻뛸TDM쇷훐킯퓘뗄뮰틴튵컱쇷죔뿉쓜싺ퟣ뇪ힼ뗄뮰틴훊솿횸뇪ꆣ웤훐폈웤훘튪뗄쫇ITU-T [35] 뫍 [36]붨틩쫩훐맦뚨뗄뮰틴훊솿뗄쿂붵틔벰ITU-T 붨틩쫩[7]쳡돶뗄쪱퇓튪쟳ꆣ 튻냣뗘틑뺭릫죏ꎺ떱떥쿲쪱퇓뗍폚150 ms쪱ꎬ볙짨폐ퟣ릻뗄믘짹뿘훆ꎬ듳뛠쫽펦폃뚼붫폐뿉틔뷓쫜뗄탔쓜ꎨ폐킩쟩뿶쿂룼룟뗄쪱퇓튲뿉틔뷓쫜ꎩꆣ췸싧뗄맦뮮뫍뚶뚯뮺돥듦뒢웷뗄엤훃컱뇘뾼싇헢튻쿞훆ꆣ 뮰틴튵컱쇷훐뗄냼뚪쪧믡틽웰볤쾶믲볙틴ꎬ듓뛸떼훂짹틴뗄웰럼ꆢ믬쿽짵훁늻뿉샭뷢ꆣ뮰틴훊솿뗄훷맛닢솿퓚ITU-T 붨틩쫩[35]훐룸돶ꎬ뿍맛닢솿퓚ITU-T 붨틩쫩[36]훐룸돶ꆣTDM-IP뮥춨뇘탫좷놣ꎺ뿉룐횪뗄뮰틴훊솿샠쯆폚PSTN뗄훊솿ꎬ벴뇣폐쫊뛈뗄ퟜ뗄냼쯰쪧싊듦퓚ꆣ ITU-T 붨틩쫩 (03/2006) 23
뢽 슼 죽 붨틩릩뷡릹늻쏷뗄뒫쯍쪹폃뗄폐킧뢺뫉뎤뛈 쪶뇰뷡릹뗄뒫쯍뗄쪵쿖펦룃쓜횧돖죧쿂뗄폐킧뢺뫉뎤뛈ꎺ • 춬늽뗄뒮탐쫽뻝 ꆪ 64 ퟖ뷚ꆣ • E1 ꆪ 256 ퟖ뷚ꆣ • DS1 ꆪ 192 ퟖ뷚ꆣ • E3 뫍 DS3 ꆪ 1024 ퟖ뷚ꆣ • 뛠놶47ퟖ뷚뗄폐킧뢺뫉뎤뛈뿉틔폫컞뷡릹뗄ATM-CES [30]뷡뫏쪹폃ꆣ 죎뫎늻믡떼훂냼럖뛎뗄폐킧뢺뫉뎤뛈뚼뿉틔퓚죫뿚뫍돶뿚IWF볤틑뺭좡뗃튻훂뗄쟩뿶쿂쪹폃ꆣ 춨맽톡퓱뛠룶FAS훜웚뗄ꎬ믲헟쫇FAS훜웚헻돽쫽뗄뎤뛈ꎬ죋쏇뿉틔쳡룟뛔냼뚪쪧뗄죝죌탔ꆣ 뢽 슼 쯄 붨틩뗄쎿룶쫽뻝냼훐AAL 1 SAR PDU뗄쫽솿 쎿룶IP냼훐뗄PDU뗄쫽솿쫇풤쿈엤훃뗄ꎬ퓚톡퓱쪱춨뎣튪뾼싇쪱퇓뫍듸뿭쿞훆ꆣ닉폃떥룶PDU뿉틔붫쪱퇓복떽ퟮ킡ꎬ떫믡퓬돉ퟮ룟뗄뾪쿺ꆣ쯹붨틩뗄쫽횵ꎬ뛔폚E1뫍DS1뗧슷ꎬ쫇쎿룶냼1떽8 PDU횮볤ꎬ뛔E3뫍DS3뗧슷ꎬ쫇쎿룶냼5떽15 PDUꆣ 닉폃쎿룶냼8룶믲룼뛠룶PDU믡쪹AAL 1탲뫅믺훆뗄쪹폃컞킧ꎬ듓뛸믡쪹폫믹폚ATM뗄CES쾵춳뗄뮥춨뢴퓓뮯ꆣ 24 ITU-T 붨틩쫩 (03/2006)
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ITU-T 쾵쇐붨틩쫩 A쾵쇐 ITU-T릤ퟷ뗄ퟩ횯 D쾵쇐 튻냣럑풭퓲 E쾵쇐 ퟛ뫏췸싧퓋탐ꆢ뗧뮰튵컱ꆢ튵컱퓋탐뫍죋캪틲쯘 F쾵쇐 럇뮰뗧탅튵컱 G쾵쇐 뒫쫤쾵춳뫍쎽훊ꆢ쫽ퟖ쾵춳뫍췸싧 H쾵쇐 쫓쳽벰뛠쎽쳥쾵춳 I쾵쇐 ퟛ뫏튵컱쫽ퟖ췸 J쾵쇐 폐쿟췸싧뫍뗧쫓ꆢ짹틴뷚쒿벰웤쯼뛠쎽쳥탅뫅뗄뒫쫤 K쾵쇐 룉죅뗄럀뮤 L쾵쇐 뗧샂뫍췢늿짨놸웤쯼ퟩ볾뗄뷡릹ꆢ낲ힰ뫍놣뮤 M쾵쇐 뗧탅맜샭ꎬ냼삨TMN뫍췸싧캬뮤 N쾵쇐 캬뮤ꎺ맺볊짹틴뷚쒿뫍뗧쫓뒫쫤뗧슷 O쾵쇐 닢솿짨놸뗄벼쫵맦랶 P쾵쇐 뗧뮰뒫쫤훊솿ꆢ뗧뮰짨쪩벰놾뗘쿟슷췸싧 Q쾵쇐 붻뮻뫍탅쇮 R쾵쇐 뗧놨뒫쫤 S쾵쇐 뗧놨튵컱훕뛋짨놸 T쾵쇐 풶돌탅쾢뒦샭튵컱뗄훕뛋짨놸 U쾵쇐 뗧놨붻뮻 V쾵쇐 뗧뮰췸짏뗄쫽뻝춨탅 X쾵쇐 쫽뻝췸ꆢ뾪럅쾵춳춨탅뫍낲좫탔 Y쾵쇐 좫쟲탅쾢믹뒡짨쪩ꆢ뮥솪췸킭틩컊쳢뫍쿂튻듺췸싧 Z쾵쇐 폃폚뗧탅쾵춳뗄폯퇔뫍튻냣죭볾컊쳢 죰쪿펡쮢 2006쓪ꎬ죕쓚췟
