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1. Title : The Development of Multimedia Communication System for Electric Power Company
2. Periods of Study : 1992. 3. 25 - 1995. 3. 24 (Total of 36 Months)
3. Object and Necessity of The Study
Fast developing information society brought a demand of the multi information system which processes integrated multimedia data such as text, graph, voice, picture and image compare to the existing single information system which processes text and voice individually. Among highly developed companies, developing this multimedia system for practical application is being competitively performed with high performance computer and broadband high speed transmission technology development.
In this study, we will open up new application area of multimedia information system and develop basic technology for implementation of multimedia communication system in the electric power company through joint work with related research institutes.
Especially, the basic technology for multimedia system development, such as multimedia communication architecture and protocols are studied. The final goal is developing "Multimedia Desk Top Conference System" to apply for educational training, supervision and control, information publicity and guidance, information retrieval, office automation, operation and maintenance of equipment and facilities, and services for subscribers. It will create a new added value.
vu 4. Contents and Scope of The Study
For developing multimedia communication system, basic technology of the system should be well classified and analyzed and new communication architecture and protocols should widely be researched to solve problems contained in the existing network.
Not domestic, but international work on the multimedia input output, multimedia processing, multimedia data storing, ■ and communication system is being performed to implement multimedia information system.
In the project, we have studied intensively on the basic technology of the multimedia system to implement an initial pilot model of the "Multimedia Desk Top Conference System" which is the main goal of the project.
It is required to study lower layer communication protocol, multimedia transport layer protocol, media synchronization and communication among multi-peer protocol for session layer and conference protocol in the application layer so that Desk Top Conference System(DTC System) could be set up. Further more, the situation of system application in the electric power company should be well studied and considered.
For this composite research work, annual activities and goals will be:
Content and scope in the first year are mainly survey and study technology. - Survey and study of essential technology of multimedia - Survey and study of standardization trend of multimedia information system
vm Content and scope in the second year are basic design and model setting up. - Study on the multimedia communication protocols - Study on the multimedia network configuration - Basic design of the multimedia DTC system
Content and scope in the third and last year are developing pilot model and evaluating system. - Development multimedia system - Testing and evaluating multimedia system - Developing multimedia application area
5. Results of The Study and Suggestion for Application
After 3 years research work, Pilot model of "Multimedia Desk Top Conference System" which will be developed with basic technology integration of multimedia. This system makes it possible to set up meetings and exchange information among distant work places with the personal computer terminal at the individual desk.
At the same time, following materials on multimedia technology will be surveyed and filed.
- Materials on the multimedia system architecture and characteristics and recent standard documents - Classification of multimedia sub-system and its characteristics such as : . Input/output system technology, Storage technology Handling and processing technology, Communication system technology for the multimedia system - Surveying basic technology of multimedia such as :
IX . Coding technology, Compressing technology, Synchronization technology, Communication network technology, Graphic User Interface (GUI) technology, Multimedia operating system - Multimedia lower layer protocol such as : . Multimedia network requirement, High speed communication protocol - High speed multimedia transport protocol - Synchronization protocol between multimedia - Desk Top conference system technology using multimedia such as : . Conference system protocol, Presentation technology of the screen, Presentation technology of voice and image. - Application area of the multimedia system in the electric power company
Because the final research product, "Multimedia Desk Top Conference System" includes basic technology of the multimedia information system. It will offer primary technology to electric company for setting up integrated multimedia application system.
With the results of the research work, real and effective multimedia application systems as shown below will be implemented.
- Multimedia conference system : power supplying plan meeting among command control of power supplying, sub stations, counterplan meeting against accidents, construction process meeting, business discussion, head meeting among business sector, seminars, and workshops.
- Multimedia education and training system : effective education and training with multimedia - Operation and maintenance support system : operating !
support with connecting remote diagnostic, ITV, CCTV,maintenance support, supervision and control - Information supporting system for administration : integrated administration supporting system for production /selling /finance /personal management /office management with graph, picture, image, and audio - Information retrieval system : scientific information, new technology information, library lists, drawings, electric power information and other value added.information retrieval system - Offer information of power station, safety, subscriber and subscrival and subscrival service to the public - Other emergency training system
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(distributed computing) 414 144 4# #47]- 414. 54 45# 14444 ## 29-144 114 14142 #4# 4#4# 21# 14 #7H1 44 444 #4 !#! 414 4# 2944 414. 5 4 125, #1, 3244, 2#1 242, 2E]2 442 15 # 444 15 444# 144 ###4 4144 #441 4#44 l6)] 441 4# #### 7]#44 4# 14444 ^#44 454 tWl 5)$14. 3)5<2] 44# ## 44^## 1151 6]si# #1 l#ll 14444 1#14 111 #1, 14444 4^1 41# 5# 4# 145 1145 $154, #441 ## #4## 51 ^)#1#1 4^9, 1#14 4^1, 4# #1 #44 ## 44, 14, 445 #4 44^ # 444 #4# 444 5 $14 14444 ###4 4* #51 44# #4, 445 #4 144 444 (continuous media) 4SL4 4# 1 445.-4, 441 144 444 454 444 54 444 1 #51 44# 5444 44144 #44 4444. 441 44# 4#4 # 4144 #4 4^944# 445 4444 15 $1# 4554, 14444 #4# 4 #4# 44455 441144 444 454 41 444 4#444 14 #4, 14444 #44 #5 #-§- #41 4451 #444 4^1, 5#, 41, 1 1 1 #1, 51 1 41, 14444 CSCW(computer supported cooperative work) #4 44 1# 4## 4415 $154, 4445 #1, 4% #1 # 411 #45 144 5 $14. 14 44455 #1, 14444 ##4 1# 1# 55154 94# #11 #14 1#1 1^45 $154,## #44 4414# #445,4^5, #4, 445 # 41 1 154 #1 44 1514 #415 $154,4444 114 m# 1#41 1454 #441 #1 44^4 4#45 $14 #14,4^9 414 &4144494 4# 4# 4 (end user) 4 5#414 114# 9411. l. ## 44^ ## 44^4 #44 4-44 11 444 44^ #444 #4, 441, 445#4 11444 45# #44 19# 14444 44^ 145 11415 $15, 5114 1 4^H #444 #1 4—13 145 1415 $11 114 #144# #1 11414 454 #41445 #4, 545 4#4 l##s 1 l##iH 41 5 #11## #1#1. - 65 ~ 7>. ^4*144 4# #4444 #1^ ##, 445, tflolEh 544# 44 #44 #57} ##4 44 44 #4# #4444 #jL4 4 #£# 44 #3. 4# ##-& 7^2 #4 444 4## #45# 44 ##44 445#4 4441 44 444# 4# 44 4444 4 -T- 44 #54 5.4 444 444 444] 44 594444 444 44 4444 # 4 4=44 444## 544 4 #44 4 4 #44 s4 4^54 544 #5#4 4 # #444 4444 5# 45 444444 #4# 5#4# 514, #44# 4444 # 4# #444 #4. 44# 4^e#4 4444 ## #4# 444 #4# #4 4 4## # 49-44# 5944 #4. 44## #4444 #5# #44#4 #44# 4#44 ###5# 4#4 #4 4# 4 #4. 1) Delay Sensitive ##, 44544- #4 #4# #44 594# 444##. 4,4#4 444 #44 #44- Jitter4 ##4 ### 4#4- 2) Loss Sensitive 4##444- #44#4- 4# ##4 4# #44## # #47} 44^54 #44 #5##4 454-4. 4444 4^5, 544#54# #44#4 #44 ### 4"# 4 3) Delay/Loss Sensitive #44#44 #44#4 444 #44 ### 4"# 44454 5H5 #4# - 66 - 441 Hi45.(Compressed Interactive Video) 4 24- 44 ^)H4 441 444b 141 44-145. 424 ^114 4444 42, 5# 141 4445# 4 444 44-2.1: 4444 444b 11144 44 4444 44- 4. #1 1 ## -0-4 44^4 1#b ccitt 444 431 34 444 44^4 4#1 44^5 4 # 1 154, 4b 44 44 444 44 44 4144114 1 $14 1) 444 44— (Interactive Service) - 444 44— (Conversational Service) -1:1 - 4444 44— (Messaging Service) - 1:1 - 3344 44— (Retrieval Service) -1:1 2) 4#1 44— (Distribution Service) - 4-8-4 HI 44— (Without user presentation) - l:m - 4-8-4 H 141 44— (With user presentation) - m:n 111 44^1 11152 444-4 114 414 44^5. 4444 1144 1 144 144 144b 441 44A #4 444# 1444 444 444# Itt b 4441 44A 342 . 141" 44444^5 14 444#- 444b 441 44 ^3 1114-- 4#1 44^b 14114 41# 44 &b 111 44^5.4, 114 b 444-1 141 4b- 4-8-4- 111 44^4 1144 5# 444# 144*4 11 4b 4-8-4 11 141 44^5. ##14-. 444 414 111 44^b 11 44^ (Broadcast service) 4*2 #3.45. 14". 444 1141# 4«fl 444# 144b 14 1 44^ (0:1) 145 #414 -67- 2. #1 ^4444 #{14 41, 14444 499 43 4# 9399 4344 3349 143 4443 1 4, 44 93 499 19 4)53 539 55:5.94 2.9-34. 411 #3, 14444 9999 #3 555# 9544 31444 4449 44 4194 5.4344 44. 14444 9993 444 44a #4 (QOS) 29 4-8-4 444, 444 444 444 51413 444 9 444 444 35. 39 44a 44 14444 35.44 943- 51-3-4 1 144am 3349 44 33 44a #3 13-1 4)44 43 14444 1 4444 3-8-44 4433 14444 34 2943-33 3341 a 4 11 34 5444, 459 49 44a, n! 1 143am 43, 44^ 94 , 9 43 93 195 4-9 9 14. 4-. 11 3-4 3.44-# 34, 14444 9394 4144 3349 94 55.5944 443- 14 449 4 11325. 24344 14-. 4-91 434 431 9 154 44a 49 133 339 49 44314 49 13 13 414 35 33 49 31 4a;#4 49, 3-3 93 294111 449 4aD 294111 35 5.13 91 11 - 68 - 4. 4j&4r 95. 55 44^ 7^9 OSI TP4 (Transport Protocol Class4) 54 45554 ^ 7# 444 552]- 44 454 9354 594 4999 H3343 5414 53EE, 545 494 349 4 5-6 34444 35% 4149" 594- 34-95 3955 956 4944 943. $14 54444 53 45-49 -¥-499 5EE <5443 $14 393S3 4944 3 949 5355 44^49 544 444 4# 44A 39995 5355 44A 4 45 445 55 44^ 94 55 444 4444 599 44 E949 39353 494 39494 35 545 54 4994 55 444 49 (bandwidth reservation) 99 54 393534- 54 45 5tiB 95 499 4444 49 End-to-End Del ay 4 Jitter Delay 34 94 Low Latency W4 449 45 55 494 5355 95 444 454 49 499 59 44 59 95-44 3:4-95 5:54)4 94 493 55 34 55 39494 555 994 Mapping 499 95 545 5354 419-44 534 54 59 95 3#55, 4443E y 95 417N5 415 4-. 3# 1 7)5 99 59, 54444 5444 4549 49 99 539 95 54 944 3559 5 - 69 ~ ^44^4 4#4 4-D33 444- 44# 333## 7) #433 14434 44^# 4#*M°> w. #4 Topology 6)]^- 4## ## ^44 #444, 444 44 4 #444# 4444 44 4#4 444 3.4444 44 Multicast (one-to-many) Broadcast (one-to-all) Multicollect (many-to-one) Conference (many-to-many) 4*. -44— #-4 443 #4(QoS: Quality Of Service) 4 4 It# *Hr 44 444 t3, 44 4# #£ 4-8-4 3444# 14# f $13# 433 #4 444 #34 #4# 44 44# 4444 ### 344# 3^333 4# 444 #3 443 #4 441f#B # 4#4 4# 444 44 44# (throughput) Bnd-to-End Delay Delay jitter 435 o))4# (PER: Packet Error Rates) 4m 0)14#(BER: Bit Error Rates) 343 443 ##4 4444 34444 4 #3 4##4# 444 ## ###4 $14 #4 443 #1 4)4 4# 444 444 #4, 443 #4 ## 34# 443 #1 444^ 44 4# #34 443 #4 ## 1 4# #1^ 4^4- 4# 4# ## 44## 34# ### 3## # $1# 443 #1 4# #44 344 4## 34# ^ $1# 443 #4 444f# - 70 - 6 r ->v: nE'::.,. 4*. H4444 ##, 14444 !#4)4 4#441 444 ^44 4HE.5 444 4444 4 14 444444, ^45 44444 14# 1#1 44 #544. 4# #4 4444 4 11 -§--8-4: 51 1##57)- #14 5141 44-2.4 1##7)?^ 44 54444 4444 44 #4. 444 4444 #4# 141 114 #5 544 44444 #4 # 111 4 54 4-4- #1 444 444 44 444 444- 34- 4# 44) 144 44 544 #14 4 444# 44# 44444 #4# 4 $15# 44 2:14 $I 11 4 5414. 4 3 1 %4#4l l££t 44 44^4 444 441444 444, 44, 44544 #4 4444 #11 14444 45# 4#4 14 44 44114444 4-8-4 411 *r $11 41 55. 5#1 5444 5)$14. 41 #4 4## OSI 55544 41155 141444 44 1 4 $15# #4)44 l$t5, 14444 #5# 4#44 #4144 414 4)51 5 55# #5 4 #4# 5#44 414. 11455 14444 451 454 #144 #4 5141 444-11 ±4 45 £#4 4454 11 414 454 45444 44#4 4145, ###1 44 #4 41414 11 4 #414 #1 44^4-1##5 #14 11 #41# #1 44^1 44! #44 44^ 51414 1414. 3=1# 4 4 111! 44 4 4144^, 144^5 44^14 14 41! #4#4# 5114 14. 4411 4444 #54 #11 4! ## 555# 5141554 high speed, high throughput, low error rate, low jitter H 5H4 #4- -71- #4 41414 #1# 214### 42#2 #444 #4444 #5#14 4-8-1 1 $1! 2.4 44# £55115# FDD I -1, FDDI-II, DQDB, atm44 4144 #4- 44# 522### 14445.-4 #1-8-1- 44#4 low error rate# 5###25# £551 1 4 ### #44-4-4 2441 441 445 4## 444 #4 4-8-1 4 #1 osi #52. H# 44 3 44 £55.1144". OSI 2#4 4-4 End-to-End 141 41#4 # 1 54155 411 44 #4444 114-1##! #44441 4#44 £551 54 #44 #1# £41## £5514- #4444 11444 24 #4445# 4 1# 4 $144 44-, 444 #444 414£ $11 TCP/IP4* osi/TP £5514 41 £4 #14 1414-4 41 2## 4!##! #241 2#25 144 4444 # 4-. 41 4#1# 44# £5514 #4141 44#4 4# #1 #4-5 XTP, VMTP, Delta-t, NETBLT1 £4 5#£55 £5514 #4444- 444 1 #1441 44# RJ4444 #14 41 41#£4 445 55514 £4 5#555 £5514 4# #14# #H !4#$M% 1. £4 LAN/MAN/WAN #j4)5i 4# #1# #44 £41 42544#!#- 41# 4415 ### !#44 #45 #4 42, 54# #4£ #4#'444- 1# 444-14, 442125 #4#4 4# 41 #1#4 ## 21 1# £5514 2144 ##4 #4 4#42 $11 454# £ 1 445 £55151 ANSI (American National Standard Institute) X3T9. 54# 4# # FDDI (Fiber Distributed Data Interface) 4- IEEE 802.644 514# DQDB (Distributed Queue Dual Bus) 4 $14. FDDI41 £4 4%)#! 44541 4!#1 FDDI-14 FDDI-14 14# 445# 17}# FDDI-II# $14 DQDB! 4# 50 Km #54 S. 4441 11# 1 $1! MAN £55154 #145 15# £24, 150Mbps# #142 1 4!#4. 242 24 444 ## £5515 14# SMDS(Switched Multi-mrgabit Data Service)#- FR(Frame Relay) £5514 $124, 2# ITU-T44 #4# !## £5 -72- 5# 14&155 99# ATM (Asynchronous Transfer Mode) H5.5e.-1M 955 449 1 #9"## 15# 451 5551-5 41# 1#949-. 1 #1941 41 15 54 9 9)5 H55#9 ##9 44 7H1^±5 54 l##-£9-. 7>. FDDI-I FDD 14 44#19-#1 511 41#TTR (Timed Token Rotation) 9"# 45 #1495 1 I### 4144, #1451 !00Mbps44. 99 111 41955 4444 444 144 #54 ##9 $144 #494 ### 5##4 #414441 4194- 559 4 45 #4 9-9=55 #99-5 44- l00Mbps4 #1451 414. 9449 200Km49 4 44 944 44- 10007M4 H#-#- 4i*g 9-55 9#1 #1 44 lOOKm 444 5007fl4 44-4 #41 4 $14. fddi 419 1191 4141 99 4# #41 4 $1 1 11 A 444- 594 1# 11 B 414 $19-. 11 a 411 ###55 91 1# 9! 41554 1#4 41 (Dual Attachment Station) D #14 (Concentrator)7\ 49 414, 11 B 411 #14# 114 99 ##41 ##4 41 (single Attachment Station) 49-. 419 15# IEEE 8024- 0SI4 41# 71)494 5# 5# 3-14 #4. +■ + ■+ ! 802. 2=LLC ! DLL ! (Logical Link ! (Data Link I Control) I" Layer) +------+------+ I MAC I ! ! I (Media Access I ! ! Control) ! +------+------+ ! 1 PHY I SMT I ! (Physical i (Station 1 PL 1 Sublayer) I Management) 1 (Physical +------+ I Layer) I PMD I ! I (Physical ! ! I I Medium I i I I Dependent) ! ! +------+------+------+ M 3-1) FDD I ^2 o PMD FDDI4M PMD4- PHY-4 f ^4 PMD6] 4. 4444-b 343 32:# ^32:5., #32:# 343 32:& 4^# 4 -ids.6!) 33 -¥-344-. -iL3.8-£5.-b fiber optic driver, fiber optic receiver, optical bypass switch, connector 444 PMDS}- #33 4"—44 # 44- o PHY - 74 ~ PHDS)- mi OSIS) #5)## 49# 4 ,9## PHDS). MAC ## #5.44 #4 29 4444#44 #4#4# 9#42 rz. 4444## ###45 4944 #4#4 4 #94 T SMI #4 924 4## 4B/5B NRZI 44# 4#44, run-length-1 imit7> 344. o MAC MAC## 4*)] <3)45 7)H, 9244 $ 4#, ^c]BlSl ##, 531 <94 #S) y) ## 9994 FDDI MAC# IEEE 802.24)4 44492#S) #-#95 fifl $1# LLC(Logical Link Control)# HtflS. 4## 9 $124 #24 444# #444 4# 249 4# #44 LLCE 4-8-# 4 &24 5)4 $14 4 444 44 442# 449 7] 444 TTR(Timed Token Rotation)53.5.## 4"§-94 4 533#4 4## 99 4 444 iff ##444 942 44# #4, #4 444# ##44 ##44 444 #4 £44 #4 44# 4#4 444# 2#44 2#4 4 FDDI444 444# # 4 ^1444 4#4 4445. 994#4 #4 4444 ## #### 7M4, 4#4 444# 5--E4 4#444 44 #9423 5#4 4#44 44 TTRT (Target Token Rotation Time)4 34 44 £4S#4 4#4 44# 4#44 ###4 o SMT(Station Management) SMT# 44444 444# 2.# #4# 4442. 444#4, 444# 9# 2=444 44 ##44# 4, ####, #4 W 49-, 4444 #4 ## 5992 44. 44 9 4## 9' a89# SMT# 34 SMT 544 442, CMT(Connection Management), RMT (Ring Management) 3 944444". SMT 544 44—# SMT#4 peer-to-peer3 # 4944 5# n-# #4# 4# 442# 24 ## ##44. CMT# 44-# 94 # #444 923 94 9444# #4#- 7]## S33#44 CMT# ECM(Entity Cordination Management), PCM (Physical Connection Management), CFM (Configuration Management) 23 9494 44 RMT# CMT4 44 9## FDDI9 #4# #4, #-#44 -75- 4. FDDI-II FDDI-II^ FDDI-MM (isochronous) 3]o]bJ 97>^3.-»] *)]o]B| 71^41 'B-W ^ #^-{1 4## W 7^4^# HSS-lrS., 7j#^ FDDI-I6)] HRC (Hybrid Ring Control) 9#4 97>4&4. HR(% 4)^2# %0*M4 #7]^ nfloje)# AM# (Cycle) e>] -4^# ^^4 selly 4 »1-e--sH 9 a^4 "SM05-1H ^4£Ht 7)194 ■b 5.5L5.-I-lr ^"#4. til HRC-fe I-MAC (Isochronous MAC), H-MUX (Hybrid-Multiplexer) 5. 9944, FDDI-I IS) 44 92:# S.y ZLl 3-24 % LLC CS-MUX +------+------+ +------+------+ +------+------+------+ •+ +------+------+ j +------+ | 1 1 P-MAC ! ! ! I-MAC +◄+—+ +------+------+ I +------+------+ | ! I HRC ! +------+------+------+ +------+ i SMT H-MUX ! *LAB ! +-4+—+ - 76~ j + i i PHY/PMD +◄-+ II | + ------+ +------+| +- * LAB: Latency Adjustment Buffer (21 3-2) FDDI-II 444 92 4. DQDB (Distributed Queue Dual Bus) DQDB# IEEE44 WAN# 4 #4 #2 £## 44# 4 £22#24, 1990! 1214 1422 IEEE 802. 644 S#22 444424, 4#4 14 27)1 37f44 #>9# 7>4 2 $14. 014, 424 <3=01 42 bursty 44 141 29 #44 44 42## 4#4 7] 414 4444 4424, 44 4244 444 2# #44 44 42## 4444 44 444 442 242, 244 444 S 4444 44# 294# #44 442 # 2# 4#44. #4, #4## 4)42 ^H-4# 4# 442 m 4#42# 444 7l #2 $124, 14 7l# £##4# 4#424224 ANSI DS3 (44.736 Mbps) #4 4 444 $124- 4#4 CCITT G. 703 (34. 368 Mbps i) 139.264 Mbps) W CCITT G. 707- 709 (155.520 Mbps) ## #4# 444 $14. 44, ccitt 44 444 ## 444 44 2# 4## 9 $12# 444 W42#44(BISDN)4 atm# 4# # 9-2# 7M2 $1 44 42 #1 f $1## 44-^4-. DQDB# 444 7)#2l# 4442 $1#4, 4414 444 442# 44 MCE (MAC Convergence Function for Connectionless MAC service), 41"% 444 442# H COCF (Connection Oriented Convergence Function) 242 #44 7.142# 4)'# ICF(Isochronous Convergence Function)7\ $14. 4 7]## MCF4 COCF# QA(Queued Arbitrated) 4#4 44 4144, ICF-fe PA (Pre-Arbi t rated) 7l#4 44 4114. 4 -77- 4"# DQDB# ##, <§43- #4 94 ^4#5E 9#4 .£>.#4# E#|# # 999# #49 #424- 444# #99# 4#49 445# #994, 449 # 9#4 442# 49971 994 #49 442 44# 9#4, #4# 4 u]—# 4# PA (Pre-Arbi trated) 444 4#4# 44—# 4"9" QA (Queued-Arbi trated) 447> $14-. QA 4b# #999 (Distributed Quing) 444 44 4#444, PA 4# # 41W (Channel Allocation) 9# 4 44 9#4#4 4# #4 #4 9"# 4 44 9 4#EE 9994. DQDB# 45. Wfii 42L7> 994# #7fl4 919 #2 9-2# 71-44, 95 55 9 447114 94b 4". 444 4 424 #5 55# 4 554# #-# 4 199 571(53 octet) 4 4 ### 9#4 4# 424 9994, 4* 55# #9- # 4499 4-4EE 4 9#4 994-4-. 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ATM 55.5.1- 511 5! 3-34 l6] 414 H, 4H1 ^ #1 1155 114 4 414 11 1 44 111 44 1441, ATM 41, 4141(AAL;ATM Adaptation Layer) 1 114155 1414 AALl 14414 414 44^# ATM 414 114 11 411 1*3414 244 141, 4 1441 45# atm 15 51/14 41 41 1 1*3 H SAR (Segmentation And Reassembly) ~ 1 44— #44 44 41 7]#* ^r*§ 4te CS (Convergence Sublayer) 5 4414 AAL44 1^41 7]H #4444 441 14, 1145 1 11554 44 14 Type 1, Type 2, Type 3/4, 3.5)3. 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Implicit 1144 Handshake #14 4*1 * #54 1541 44* Abrupt 441144 Gracefully 44114 4*14 -107- 444 11/44 7]# 444 4111# 12444# ## 444 (out of band) 12144 44 9^44 W4 5%255 #414# t£6) 0^4 ##- #V|# #9<>) H^SE 9 $14- 444 5^2=5 #%] #94 44*1- #94 444 512 51 444- 42 #44 7]##s# 14414 lit 9 $14. 444 51255 44 594 414 5#4 51255 #4144 #44 la# 44# 9 $1# 144#5 I 44 44#!- 44 7fl441 4#£ 5444 444 41 441# 4 444 4111 5 444 (in-band) 44]41# 1144 Abrupt 5# Graceful ly 44]41 (2-way IE# 3- way handshake 4#)»] 4#4 9 $14- 14444 41 11/44] 442 4# #4 #- #14 #90] 444 #14 7]##a# 4441 ^1# 11/#4I4# 4# 5&1 442 #45 #4594 444 97>4 4 *)] 59-1 414- 114-5 #414# 4#5 5W4. 4444 #44# # 4441 12 44] #4# 4)1#44 9^44 444 44— ##4# 11/-B-1 44A 44514 44 A 445 44, 14444 II 442 #4 5414. 1444 41 11/44 442 7]# 41 4444 444 494 #7M#m #4 #14 7]#45# 41# 11W 4# 44554 494 1441:4 5#55 #11 9 $14. 442 # #44 144 4#594 41# 97> 11444 4444# 4#5 5444 444 #14594 # 94 91*]#44 la# 1#4# 442(14425), #94 1444 444 914 & 15# 194# 442(1495), 34##, 44W 442 ## 4#44 -/os- ehqsM/ibqnlrM 7]-^ 9 9)7)] 7l^ir ^4^ # -8- 7^ t?W- 4#^-9-4 ^7> -9)71 ]a]7]^ 71-^-ir 3H=4. S]s], lB]u]t}oj 2.4 55:2^ f-s] ^HjA7j- O] 71^-6)] S^t}-. (2 3-3) E^A = E >|U]A S.%7. £g. a)h]a sj-Bfojtf Connection establishment delay Connectoin establishment failure Throughput, average/peak rate Transit delay Residual error rate, lost or garbled messages Trasger failure probability Connection release delay Connection release failure probability Protection Priority Resilience Delay jitter Burstiness, burst duration______ ’gBjAjujA 7)H 7]^ AjH]A 2M9# Aimsw, #3, ^7\ # 44W. »1 7]^ ln]tM s) 6) f-Tj. Qa] 6] y-7>7>7> 4^# Dl^ojS. Aju)A6]]^ ^ S]S] -709- 4a 44 44 4444-. #4444 ^44 ## 44^44# 3: 4^4 S14a#4 ###44 4a4 s|44 #4# 4 44# 44# 1^-4 #a ^4444 4414s. #4444# 44#4 44/^4444 #44# #4 444 ##44. 44^## 4444 4# 4? 444&# 444 £#4# 44^##4 #s# 4#44 44 #, #444 09.4 4 4 4 ^#4 4444# 41#444 4#44. ^H#444 #4# 4444# 444 4 444S 43C/414 444# #4 #44 7^44 . 4# 444#4M 4#4# 444 4 44 #4444 ##444 S.94# 4a# 4444#4 #-8.44 #4444 44 ^ 4#44 s4 ^ss 4#4 #.#4# 44^## 4444# £ 3-34 444#4. #44# 444 4# 4# 444 4#4# 4444 h#^se. 4#444 ###4 #44 a^ 55 -B-4^4 zl4S: 4#1 # #a# 4# 7]# 444 4# # 44 4 # ifiii #47f 4444 444 aas# 444 #4a (pdu) 54 2 4, ,, #s (rate) 44, #444 # 4444 ## #W4. #4444 4# 4# (43l4#44# 4#) 43:4# 444 43:44#(scfu)#- 44-44# #4 44 #4 4 4# 4#4# 4 4^a4 444 4# 44^# 44441 44# ##7}- ## #444441 4#4# 43: 4## #4 4444 a#4 43:#aa4 #44 sa 4444. #4444a# Break, Interrupt, Abort 44 S#44- 442x*l 4444 44 7}* 4# #14 *43.9-4 £.94 442x#1 444445 445 ##42 $1#4# ^ 3L#4. Etb s: 1## 114* 4«l2x #1 44444 4445 ## 7]%-* ###• 4 4 #4 OSI S^iSS 555# ## 7}* 7|#6] OSI iait-8: 44 4543. 4*4 ^jq. *14 44 57114 H am# *# (class o - 4)55 3444 $12 *44 £.9- 9! 4 4*4 *44 44 44 4 #** 4444 4-8-4 # $i£* 42.44 $14 44444 4^44 4# 555# 1* 444 4^44- #41# 4s $i5# 44 444* 4#4 512x55 2S.S.1 4* -& 54444 #4. 4# 512x55 555## 41# 4 Hi^4 441# 4«12x5 9 #4#4 11# 4«l2x* 4# i^a£e 5&E#* 7Mi $)* MDTU414 4*42. 4 11# 44—# 9-5-4 til #4# 4ul2x (Non-Acknowledged C. L. 4 U12x) 5 4*44. 555# 14 44 4* 711111, 444 1*, 4^44 ^ ass# 1415 9 555# ### #14 * 555# 44, 43# 51, ## * 4# 15# #144 #45*9-5 #544 14444 4451 41 #4 4*4-8-44 £.94* 4til^4 44 41#* 4444 4 1## 4-8-4 44^ * #4 445 149-4 4444 445 s.9-4 scfu* 444 4111# 44 4 41# # u>#55 MDTU# 1414. (2) HS5t 7]# 5#2x55 4til5# ###-4 4# 512x55 4*44 1Mb 4**# 5 3-44 # 4 -m- (5. 3-4) 411 4# 7)4 411 g.l 2gg. aag.-t 7)4 Miis 13:41 4in,44 ^ n 444 ^14 <9145) 4141 9) 45)41 11,44 4 41 444 14 s^iis 4492# 4243- 9)4 #23 44 444 2125E 414 4E43. 4114) 441- 4 s^iis 1114444 4-4-4 442 #! 44 4 Sfiis 1114444 4-4-4 441# 9) 4449 4 21252 4114444 4-4-4 44/21/44/1414/44, 4##/4 4#4 4 s^iss 4114444 4-4-4 £1-44 4244 4 sfiss 41144 44 14 4444 . #4 tsdu 14 444 44 441,444 (3) 411 4ti]dh =B)n]B)jy 24252 44244 £ 3-54-14 21252 13:121- 1444 4)1 4111 9) 444 111 hb)44S-14-, 445) 14 11 35)4^2 9) iMH n hb)4 5)214 4414. -112- (S 3-5) 111 E122E 142 E444E EEE# 44 E444E 4444 T-CONNECT 414 42, 114 42,41444 requset (E! 14, 14241, 4444, 41444 2SE 111 (412% 44441, EEE#44M 1 4&9) 14, 11114 , 4^4 114 , n/# 422...) El2 SE T-CONNECT 4414 42, 1414 42,41444 1241 indicat ion(E 41, 142#1, 4444, 44444 mi ^SE <91 (12% 44441, EEE14-4E 4 1141) 14,11414,444 414, 11/# 422...) T-CONNECT -§-14 42, 41444 14, 14 response (El 241, 4444, 41444 (12% 2£E 111 44441,2EE-F8-4E 414,11 141) 114,4#4 114, 11/4422) T-CONNECT 41A 42, 41444 14, 14 confirm (El 2#1, 4444, 41444 (12%, 2£E 111 44441, EEE#44E 114,11 141) 114,4^4114, 11/4422) -113- T-DATA req. mlB) ^ T-DATA ind. -tH T-EXPEDITED DATA req. T-EXPEDITED -n-^ 3Wb] DATA ind. abrupt T-DISCONN. o-x) tlMeHWga) request T-DISCONN. °-z\ rne>]B) (^13:^5.),^ indication m-%- gracef T-RELEASE. -ully request n*\] T-RELEASE. indication urn T-RELEASE. °-z\ response ^1*1 •#• T-RELEASE. confirm *)]*]■#• MT-JOIN im-i- f±, iM-ai 4% # request 03b) il -S-^^)e>lB) -114- 14412H MT-JOIN 142# 42, 4442, #4 44 reject (444 4#, #43144 144-44) ' MT-LEAVE 142# 42, 1441 414, 1 request (44 4f2 #5)14-44) 4. #1 #b) (1) &3Lm m ^4 4^41 n 14444 #4 522#4)4# 444 (out-band) 42#4# 4#4H2(SCFU 44 f^) 442 #444 #1 5 444 7fll7^ £1# #7]) #412 %# 7#2). #44 42:4)1# 4##2# s)4 $14. 14444 #4# 4^4 444 44 #4 4 44 44444 34, 14422/## # 4444 11#1# 4422 444 444 9 4*r 4444 41414 12#4-. 4 442 #44 44 4-4-4 44 (point to point connection), 4~4"4 44(point to multipoint connection), 4“4"4(multipoi nt to multipoint connection) #4 44# 4.44 4^-44. 44# 4141# 44 4 4444 4444 2.44 4442:# 4 # ^1)4'424)1 (meta-signaling channel)# 4 442. 4 4)4-42:7%!# #44 4^1)1# 41# 4# 442 2#4 4 457%1# #44 444 41# ###4. 4#444 4241 41# 4424) 4# 4# 4444 #4 (#22, 4229- #), 442 #44 #444 1 4444 444 ## 2.444, 4-1444 Implicit #4—5. # 444 2-way handshake 51# 3-way handshakes. # 444# #4# 4 $14 4111# #444 454422 41# 41 # 144# CR TPDU4 4141 as 1e4 5444 44422 244 444# cc -115- TPDU3. 294 ###4. 44 #{144 Implicit # 22# 14#4 4442, #{144 2,44 44 #14 44144 4-8-424 # 4# cc tpdu4 <8111 22 12 0)1 4 4 #14 2444 -§-#44 -§-#-& 444 #444 cc TPDU4 4444# 22 2 94 #44 #2# 2 #422 414 4444 #1 294 #44 4# 49# 44 44 294# #4# 42#4 44# ### 44114. #444 294 implicit# 4 4444 4# 41424 # 4# <8144# 2944 24 4# 11 # 4141# #44 9^4# #44 4#4, 42124 #4 44 1# 14 implicit #4# 494 4 4241114- #44 mm 44# 9 $14 4 ##44 144# CR TPDlM] 44 4 #1124 441 424# 11 # m] 29# 44444 2444 44422 4# 42 #44 #1411 {Ml2 4444 444# 4 CR TPDU# #44# 44 TPDU (44 TPDU4 4444 2444)2 ##42 #144 #42 44-44 424# 44 424# 44# 2# 444 #14 444#44 42 # 49 14#1 #22 44 # 4424 #4## 4 4444 424# 44 #14# abrupt 44 #14 gracefully (orderly) 44 #4# 24#t $14. 4 944 #4# 444# ### 4 24# 114 44444 44 44# 4 $124 #4 (2) n^i m 1 441 444 4# 11 444 4## SCFU4 442 #44# #244 4444 1## mdtuI- 4442 4 #44 29# 41 442 #14 4#&)# 444## 4442# MDTU4 44#4 #4 4 4#11 ##12(4# 414 #)# #44224 1144 #4444 444 4# 11# SCFU4 12144 44 1212# #, 414-2 4 SCFU7> 5.1 HDTU# 14 #2 24 49414. -116- 444 44 4447W# 444 $144 444 (in-band) 44144 444 (out-band) 44115 & 27M 11# 541 9 $14. 71144 554)4# 444 (in-band) 4411 (11 1) # 4-8-14 41 44(4 41# 4415, 444 5.4 444 414 4444 14 9 3.##! 44544 445 414 41 444 7W44# 444 (out-band) 4411# 4-8-14. 4*. 4111 If^SS. *\*}± 4111 E45£E. 44^4-fe 9#1 4111 (Non-Acknowledged C.L. : NA-C.L.) 44A #1 4111 (Acknowledged C.L. : AK-C.L.) 445 i* Bill 4111 (Transaction : TR-C.L.)445 E.E.7]- 4.4-. 4- E£6fl a]#^# 5-444^-4# 119 ±, 1195, 445 #1 4-4-44 (QOS), ts-#*) 40)4 #4 444471-£1^4. E 15£5 #4&94 554# 445 #1# 1 444-144 E45£E <1444 11 6)1 4 -4 - 4444# 4 1444 4-9-71-1145 11 91# 114 444# #44 5 9-1- 444 #14 445. #44#4# 14/44 14. (1) ffi- 4111 al 3-114 - 14 244 445 =4445.14 Afg-n. in #47 } si t-unit- DATA. request# 1444 1114 #S44 2E# 4^1 49 #41 144 114# T- REJECT-UNIT-DATA. indication £4445.# #7144 1114 411 14# 111. -117- T-UNIT-DATA T-UNIT-DA FA request request T-UNIT-DATA indication (3.1 3-11) H# 4444 44^ 54442 4144 (2) -§•1- 4414 44^1 #{144 #4# 4444 #4444 #42 444### s 444 4# 54442 (T-ACK-DATA.confirm)# 44# 4414 44^4 444 44 44. 4 442 2544 ## 144 2# T-ACK-DATA. request# 4444 4444 4 #44 24 4444 T-ACK-DATA. request# 442 ##4b ### 4444 1# 41 24 4^4 44 444 #44 #444 T-REJ-ACK. indication 544421- 1444 4#44 444 44# #44. 4 442 221 444 tpdu 3.4 0144 #1 #4 4 44 444 4#44 al 3-124 1# 4414 442 54442 ##4-4# 2#4 -118- T-ACK-DATA T-ACK-DATA request indication ------^ ------> <------T-ACK-DATA corfirm T-ACK-DATA T-ACK-DATA T-ACK-DATA request request indication ------> ------> <------r- T-REJ-ACK T-REJ-ACK indication indication (al 3-12) ACK-C.L. 44^ H4445 ##4# (3) 4 *911 -g-# ul«ai-y 44 ^ T-TR-response =4445# #7>tb #454 ## #4 7} iL# T-ACK-DATA. request# #444 ##44 #^44 5E# #444 T-TR- DATA. request# 445 ##44= ### f#44 ## 4# S# 4^# 44 44# # 44 #444 T-REJECT-TR-DATA. indication =4445# #444 ##44 44# #4 # ##4 . 4 44^ 2.5# Client/server 44^4 #4 44# 2-way 444 4 # 44^4 #W4% a# 3-134 5.44# 44^ =4445 ##44# 5#4. -119- T-TR-DATA T-TR-DATA T-TR-DATA T-TR-DATA request^ indication reques t indication ------> <------<------T-TR-DATA T-TR-DATA T-TR-DATA T-TR-DATA corfirm response corfirm response a) 1111 b) 515.2= 4 T-TR-DATA . T-TR-DATA T-TR-DATA response request indication T-REJ-DATA T-REJ-DATA indication T-TR-DATA indication response c) 91--& 9 HA] d) 51 Al^ 49 #4]A) (5.1 3-13) T-UNITDATA 54445 5-l#-4 44541# 14444 S}4, 14455, 1# A)HjA. # 4-94 1"7}-aR1-4 114 1.8.4-E5 144^5 71-^di 49444 #4. 14455 49 # -b-aRI- 591 Altaic #1# 19444 H 5-1 3"14, 3-1522}- #4 1414 144^2= 7}i,o. # 194 4949 194 tfl-gfl 27R1 555 #914-. 14955 A}A^j 9 1^449 (SCFU)# #9 151 15# 95 1# 4# 4 12:4497} MDTU# H ■si-554 49494-. 11 14955 49114 1544 5##44 44-44 4 44 ^ 9^14594 41: £9 #7}- 59-4 SCPU# #41 411- 114 414444- 97} 41 4-554 5:14 7}#44-. 5##944 I-7RI-4 44As o}% 594 41 444 4H 414fe 444 14# aJ-44-84-. -720- (nl 3-n) 4^4fe TP Layer NERWORK 44 B M 3-12) ^)#44 4^4fe ^4 (1) 4 4444 444^2 7]-^# 4Wb ^4 e^se 4444 *g- 4423. 144^3 a# ^442 4 4444 PDU 44 g 2#4 444 41 44444 <344 4442 4444 7)^4 4 ^4 . -222- P""4 Group I address address Network operratio: provider (21 3-18) 21252 44444 14 412 zM 41 (2) 444 14423= 414 4444 44 If BE4 44 42! 4 14- 444 42 44 4444 SI! If 1442^ 2#f2# 14 14412 444 f 444 4 4# “314 4442 1 2 TPDU1- 124 f 4# 4444 4 4 4# 111- #4 444 4H22 4444 44 441 TPDU44 4441 444 tpdU7> 11441 4444 41(44 421 NSAP + TSAP) 7\ 44414 4# 411 24252 4444 2#f!4 41412 41 14. -722- Network individual network connection provider (nl 3-17) 4#444 144^B 4441 (3) a### *\*]± 44^ q7\ IL#44i7} 1^5]# 4144 a uL#4 144J77} 4b #4 #14 4#44 # 44 #7}# # A# 43:1 aa 44 SCFU# #4 4444. SCFU# 47}# £.## #44 a#^sa 44# #7}a #444 »11- 47}A#4 4-oj #44 %#44^# <>]1# #### 4# #4 4# 4 3:4a# scfu# #sfl 444a scfu# o]## a#4 #44 ai i£i 41# 444 44 4. 1#-144 #5. « # 1#44^ 1444ol ## 44^# 444 4 $1# 4 a# al^aa 4# as. a# #a4 44^ 4 ## #4 , 4144584. 444 ai^sa aaa## ill 44 i 2.3=4 411# 44^ ana ##44 144584 11# 44^ aa44# 41 -123- 4 ail# & 444 7)^42# 4ia# 445 #4#5 ### #144 # ^)4#-4i #### 9 124 #12 14444 114 #41 # 94 4444 494 444 #14 4#411 m# 21414-. 4 #14 44^4 4 ■sfly-b 9114, 111 1 5### SEf 54414. #44524 #44 ^ #- $}%■ 6)14 #E)?])52# 4^4244 446j] 44 #B)?))^E 7)## g^AHE ^j#6)M T *341 #94 4 4$44 9^41 #95 9144 t)#4#4 44# #91 441 54 #45 . ##44 #24 49 4 * 5.tfls. 4&4r 14444 5#522 =22#4 4# 19-7)- 44144 #544- 4] 6 1 41# 3&&# <5# 1 147)1 I# osi4 44 4#4 4Wfe 1 : l 444: 4444 4444 144 44 #44 7^# 5)4 44 552## 14 41# 4-8-1 7)142 14. 4 194 4# 14444 1-8-1 4#41 44 41 954- 445# 44414 1. zi# 4)4 -8.9-4-#- 44# 4# 44# 444 49444 4441 444 444# #7>^># #4444 #4. £1 #7M)# 4545 954) 44 4442 415 9441 #44 alls# 9444 £1 544454 2l#S5 41#4. # #-7}4# 44444 #4#9 1 4. 4 4444 #4444 #444 4419 14. #47> 14# 44# a#! -44 #9 144 #4. a#4 444# #44# 444 7)#% 5)4 4# 441 44 4 #444 ##4 44 494#4. #4 44 ##4 4944# a#444 44 44# #7M# 5)44-7)# 244a 44-1 4# #4#4 4 4-41 ¥?} #44 #7)-4#4 # #444 #4971 #4 #2.5 #4##. #7>7>fe 5)4 2# 5)41 419 1#. 4 #1 147)11 7)44134 4-444 29 4-71-424 # 9 #4# 7)4-44. #-##1 -124- 7}#4 #4 i4#4$uz. #### #542 4 #4 xm ^ #4. 4&41# #### 4 #4 52 $14. #44 #2444 44#4 4-M# 9*11# 4#4M1 ###4. #24 #444 4f# 9 44. 4*4 #444 49# 2 944 454 4 #941 #444 4944 #4, 4 4444 44-6 #9541 4 4# # 4-8-44. 44 9## #2 #49-2# #4444 44- 544 44s#4 42# #7}*}7} 444 #4444 4# #44-4- 44# 4# 9 44 42# #4444# 4 44 #47} 4934 4 44 #7}*}, 4#, #### 7}##7}4, s}#54 4# #4 2##4 4#4 445*9# 4# #7}44 4# 9 $14 44# 445^4 #2# a # 427} 42# 4 #44 5# #4 44 #2# 4#4 44 #422 4#4 #4. #444 #2# ##447} #m 29# 4 9 4#4 44 4422 494 #4. 4# 4- ## 44 4442# 422 44 45# 4# 294## 2#4# 4#4#4 - 44 2# 45 5 44 ■ - 44 44 #5 - 2# #7}44 44 #7} 25 5 47} - 2# #7}44 44 #4 - #444 #5# #7} - #4 4# 43) - #4# 46 - 4# 4# - 44 #2 2. ^444*1 45 41 #4 44^ 44 7}. 7H 2 -125- 14444 41 4## of- 414## 4#444 #4-. 4 #4 iso 8326# .1 : l #1# m 4# 44^# 1442 $14. # !#44# 1444 (multipeer)# 44 4 1 4# (44 3.# 4144 4)4- 1442 of 4# 44^# 4H4-. 44^# ccitt X. 2104 444 44^ 21# 4444 14#4-. 4 2.44 SSAP44 4444 of- 4 4 4444 of 44 444(provider) 44 44# 4W4 ^4 4# 4444 44 4444 44^ 244424- 44444 44 127} 11# 4 of 41# 4# 44 214 Ol 3-184 44. Session Protocol Session Protocol Session Protocol Machine Machine Machine (zz.13-18) 14444 of- 4# 44 21 of- 4#4 SSAP4 4444 SSAP4- 11# 4 44# 114 444 4# 4#4-# 4# 4# 5S.S.1 4# (session protocal machine) 4 44 14444 TSAP4 4411 14. 4 of- 41# 4-314# 14444 21222 44# 4144. of 41# 4 4 24442# 444-1# 4422 ###14-. - of- 41 - of- 44 - of- 4# 11 - of- 41 44 - of 41 #4- - of 41 14 -126~ - "y . " ' . - 2-E 14 - 444 4# - 44 14 2## 2# n^i:6)) 44 7)^H. 2# 44 44— 4 #7) (service provider)-b 2 # f A# 4444 2#4 #44 4 #7)44 e^)a£h f±4 o)t)l MiSI 44 ^-1- 4-8-47)4- 4# 4 4#4# 2# 4-8-471) €4. 2# 44 44 ^ 4#7)7) zz# ;W 4444 444# 44^ 4#7j# zz# ^±4- #7)7) ^±#4 442(interpretation table)-# 2#444 44 ZZ# 44# ##44 44 44 4-8-7]^ zz## 4442 #7)7)4 4^2# 44 44^ 4#7)»1)4 4#42 zz# 444 44-8 f 444 2## 4447)4 44. 4# 4)4 =44425. 2# 44 (group define)4 2# 44 (group remove) 44— 244424 44-94. 44 4 4447) 444 4# ## (activate) =44427)- 44^4. 2# 4## 1:144 4 44 144444 4444 444 44442 f44 ri 44 2# f&7) 444 4 1444# 44 44 444 71)1# 21 3-19 4 14 44^ 4#4 444 4 #4 (21 3-19) 1444# 44 44 447fll 2# 444 4441 2# #7)4 o)i 4 # 44 #4 (gs-activate #4 )7) 4144 -127- 44 44 1441 44 #4 (gs-join.£1)1 m\ €4 41 £1 4444]»] 1 4(GS-J0IN.#4)4£ 441 44 t%Sfl 7]«# # f ^4 £# 411 14£ #4# 0144 4444 44 111 44 11 44 414 4444 44444 4-8-44 444 44 4& 444-E 444 414. 444444 4444 444 41 1 44b 444 4444-. 4444 44 44414 S.44444-. 44 4-4- 444 441- 3M 4441 4444. 4441 41 44444 444# 414 4 4±4 4 44 144 4441 44 si 41 4444 444 14. 441 114 4441 4 14 1 44. 4441 £101] 43% 4414. a# 441 44 444 £-E 44 (TOKEN-GIVE), £1 s|l (token-reset) 14 14^ h444£4 1414. 444 414 1 44 414- £1 414 44. 14411 4s4 4441 44 414 i 444# 414 1 4±4 £1 411 444 44£ 414 1 44. 441 4441 4 1 4-4444 144 1 44. 4# 1# 44 - 44 (GS-Change-Chair) £5)41 £4 14 14. £# 44 44^# 4141 44bi £444£4 *114 44441 5 3-64 4 4. 444 44^1 2;% El 47%4 44£ h444££ 1114- (£ 3-6) zz.1 >111 44^ £444£4 4444 47 % 14^ £444£ 4444 444 - 444 o]4 S-GS-DATA. request (Group ID, User Data) 41 11 S-GS-DATA. indication £14 0] 4 S-GS-Exedited-DATA. (GroupID, UserData, Cal led 11 request Address) S-GS-Exedited-DATA. (GroupID, UserData, Cal led indication Add. CallingAdd.) -128- GIVE TOKEN S-GS-TOKEN-GIVE. (GroupID,UserData, Called request Add. Cal 1 ingAdd. ) S-GS-TOKEN-GIVE. (GroupID, UserData, Cal led indication Add. Cal 1 ingAdd. ) S-GS-TOKEN-GIVE. Result response S-GS-TOKEN-GIVE. Result confirm PLEASE TOKEN S-GS-TOKEN-PLEASE. (GroupID, UserData, request Emergency) • S-GS-TOKEN-PLEASE. (GroupID, UserData, indication Emergency) S-GS-TOKEN-PLEASE. Result response S-GS-TOKEN-PLEASE. Result confirm -129 - CANCEL TOKEN S-GS-TOKEN-CANCEL. (Group, User Data) request S-GS-TOKEN-CANCEL. (Group, User Data) indication S-GS-TOKEN-CANCEL. Result response S-GS-TOKEN-CANCEL. Result confirm 3.# S-GS-GROUP-DEFINE. (Group ID, Member request address) S-GS-GROUP-DEFINE." (Group ID,Result) confirm a# 44 S-GS-GROUP-DEFINE. Group ID request S-GS-GROUP-DEFINE. (Group ID, Result) confirm GS activate S-GS-ACTIVATB. (Group Id, Qos-Parameter 4£ request User Data S-GS-ACTIVATE. (Cal 1 ingAdd. Group Id, Qos- indication Parameter User Data -130- GS JOIN S-GS-JOIN. (Group Id, Qos-Parameter request User Data S-GS-JOIN. (Cal 1 ingAdd. Group Id, Qos- indication Parameter User Data S-GS-JOIN. response Result S-GS-JOIN. confirm ■ Rsult GS TOKEN RESET S-GS-TOKEN-RESET. Deacti request ve S-GS-TOKEN-RESET. indication GS LEAVE S-GS-LEAVE. request S-GS-LEAVE. indication * / -131~ GS Deactive S-GS-RELEASB. (Group ID, User Data) request S-GS-RELEASE. (Group ID, User Data) indication S-GS-RELEASE. (Group ID, Result) response S-GS-RELEASE. (Group ID, Unleased User confirm List) S-GS-ABORT. request (Group ID, User Data) S-GS-ABORT. (Group ID, User Data) indication 4 a# 4# 3444^- HsMBiti-E-g. a 444 44 H4*l -8-4* » 4 ^.4, *4 -§-4, 444 44 444 44 a4 3-20 A4 ~ B44 44 *4@4. -132- S GS XX, S_GS_XX. 4I*o4 L_|X S_GS_XX.#4 S_GS_XX. 44/ X S_GS_XX. S_GS_XX. X_.— S_GS_XX. #4 S_GS_XX. #4 S_GS_XX. S_GS_XX. #4 S_GS_XX. -§-4 S_GS_XX. 44 S GS XX. S_GS_XX. #4 S_GS_XX. 44 ^/S_GS_XX.-&# (z^g 3-20) z.#44 S444&4^ 3. ZL# 44 4#4 m 7K Z# 44 4#4(GS Provider) 4 -E- <3'?’44 4 tt-9 Z# 4-E-& 44 44— 4-5-44 (service provider) T^-fe Z.^ 3-214 44 GSSAP(Group Session Service Access Point)# #4 S.^-8 .8.4 5444-9- (request primitives)# 44— 444 (service handler) 4 44 44 44— 5.# (service module) 5. #444 4444. 44— S.#6)]# Z# #4 5.# (groupmanagement module), 444 #4 S#(member management module), 5L-5 #4 5.# (token management module), 444 #4 2# (data management module) 4 $14- 44— E.-§--£ -133 ~ GSPDU-Builder# 4 #44 GSPDU# >1]44-2 4# TSAP (Transport Service Access Point) * ## I^jA5E 44^# 4-0-, ##44%TSAP# #4 #44# GSPDU# Receiver4] 44 #444 44# 21-5. (2# 3-21) 2-f 4]# 4]#44 #2 2-f #2] S## 2-f #4 (group define), 2# #4] (group remove) , ZZ# 44 4# (activate), ZZ-f 44 44 (release), ZZ-f 44 44 (abort) 44—# 4#4# #42 #44 ZZ-f- #4# ZZ-f- 4-4 44# (group definition table) 4] 44 4#4#4 ZZ-f 44 44## zzf-4 44 #2-1- 44*44 44— 4#44 2# 4# 4## 4#4# 4 #24 #2# 4#44 #4# #4 2## s_gs_join. 24/## =4442, s_gs -LEAVE. =4442, S_GS_CHANGE_CHAIR =44424- 4## 4# GSPDU* 444# -134~ Procedures. #994- S-E 49 5## Token_Give, Token _Please, Token_Reset, Token_Cancel 544454 4## 49 GSPDU# 944# procedures ##^4 94 5## S_GS_Data 594 S_GS_Expedited_Data 59 544454 o)-§-§. 9-#. GSPDU # 949# procedures 9-43434. 4. 4)9 4-§-9-9 94 99 5# 4)99 949# 4)9 7?-g-7.? (group session user)# idle 944)9 49 — 41# 45.9 b) activate 9*11- 959 4)9 #7)# 599# join 4 4 ^#5994- 495 5.9 b) JOIN #9# 959 941 5541 #0)44 o)49 b) h# 4414 494# 5# DATA4 ExpeditedJMa# 9414 9 $14 941# 44 4# T0KEN_PLEASE4] 44 444 # 5994 Wait TOKEN 4444 S-E# 7)444 SE4 947)4 Speak Ready 944 4 444# 994 9 $14. 444 994 45.5)4 token_give4 447)4 494 T0KEN.RESET4 44 Listen Ready 94)7? 44 Wait TOKEN 9444 444# 4)945 (TOKEN.CANCEL) Listen Ready 94 7> 94 49 7j#4-o) 94945# 3.9 3-224- 4 4 49# ZZ.#44 9444 nf-# 494554 #94 4494 s#49 9444 activate 4454] 44 Wait Join 947 )- 94 4 9444 9949 #9 join 59# 4# 97)4# 4494 4447)- 9545 97>597>7> $159 44 44 947)- 94. 4447? 95 4$1#45 97?7>7? $159 s# 49 945 #499. ACTIVATE4- 9# 4#7) 44 ABORT 59# 9 t5 $14 447? 4949 499# 95 44# #945 CHANGE-CHAIR 5955 499# 57)95 99 97?7?S 9994 CHANGE-CHAIR #?]# 9# 99 97?7?# 499# 9#95 4449* 944 #99 9444 44# #99 4 494 94 99# 59 3-23 4 94 -135- CLOSE OPEN. M LEAVE DATA. LEAVE. JtL EXEDITED JOIN. 4-SI TOKEN DATA. #4' &EASE.&3 EXEDITED READY TOKEN, TOKEN CANCLE. TOKEN TOKEN GIVE. 3§-x] RESET:#^ GPEAK READY IATA. EXEDITED tiH 3-22) 4^ 4-8-4^ #3] 3M5. -256- vixuur__ y~ GROUP CLOSE. REMOVE. A DEFINE. CLOSE IMER /\ EXIRE JOIN. #4 TIMER \/EXERE(JOIN) CLOSE. CHANGE CHAIR CHANGE CHAIR (HU 3-23) 4. 35. ^ # 3#44# 34444 #3^ 0.4 44# 34 43 41# 434 34 .4# 444 3343 43 4445.5#4 354 445# #144 44^ =44 454 44414# 4445. Hi 43 55:5.1-3 43434 Hi 34 # 4# Hi 4 3 VI *M# 44 4454 44^H4 44 44 4 44# 44 34^4 344&H Hi 434 344- 43, 433 34, 434 31# 44 544457}- ^7f4&4 *)] 33 43 41# PDL (Program Degin Language) 5 #4435.4 4# H7)] 34— 544 451 #44# #14- #3 PDU1 444# ##55 #3434 34^ 54445# procedure! 4#44 #4434 PDL6)] 44 555! 43 #4# 134 5551# 711444 3444 14 34 43# 45a6)] 44 544 #444 433 Hi 43 -137- 44^1 14 1^-444 ^4# 14 4Sl 14444 -§--§- 44 ^ 444 44-4 44 # 41# EEE#S4 1-8- H-lr Z44^4l 144 lf4 444" 14 ?M4 414 4Sl 19# 41±& 49 14444 -§-8-ir 4!4c Generic Group Session BEE#4 4# 197j- 4El f $11 1E3. 4414. -/J8- c*L ^ tua Irrt JEL is, W Jl 4 4i j I I t XI 4 % 'geM' cM V]]E0j3. y-7- 4 #44# ^44^4 DTC 4^#4 4 ##44 PC61H5. 4-^4 PC LAN &## #4 fll, # a] a ego] el]H^a. oiBi^ojA.n^o] 7]£ ^]d)] trj^- #^4 z^^Tg 7]# * 4#4# 4 TO 4343 3334# Qsgo. ^J7A> -#4. 9# TO433 pc 434a #^44 44 £-§• 3334# 4444^3 ###3 $1# NetBIOS^) ifl-Sfl 3 #44- 4#4 444 #TO4". 4#4 ## 4 #4 #### 3#S}-3 Novell's NetWare4*)]# 4Wb IPX/SPX4] 44 ##33 4# NetBIOS#- 43.4 TO #33. 4f # 4^#4 434a 4444 ^ 3#4 #9- TO33 #3^4 43# Windows 4343 3334# 4444^, Windows Sockets# TO# #4TO 44## PC 4343 ##4] W 3^ 4#33 # #4444 44 #a#4 43.4a 3334 # ##±3 ##€ NetBIOS# 4-8-44 9-44 434 a 4444as#4 94# 4444. #33 W pc 434 a 4#4 # ##•#41 44-4 ±4#4-. -141 - 4] 1 1 PC j]nol ^ 1. NetBIOS 7>. 7fl». 94 NetBIOS^] #4# 198444 IBM# IBM PC Network44c IBM 3] 2:9 LAN# 9S%#4 4 IBM PCS] ##4;e #4 9&9 NetBIOS ##4 #4 %%4 NetBIOS## 9# IBM PC# #9 BIOS (Basic Input Output System) 5]# 9444 4# - 4 4444 IBM# Token Ring LAN# #9 NetBIOS 5S.IZ.49 9444^3.4 NetBEUI# IBM PS/27> #9494 IBM LAN# 4]# 7]7] ##7]S}- £# IBMS] LAN #4# 4#4fe £5S44S4 NetBIOS# #94$a4 NetBIOSs] ##94 44 4# 9444 £ NetBIOS^- NetBIOS emulator# 4#44 #99, NetBIOS# 444 Ethernets}- ## # #S] 4# ##4h 71] 4, NetBIOS# 4 #44 444 sszz.49 9944^4 # 4 $1514 NetBIOS# a# #94 44 444 $1# 4# $144 99-4#£ pc LAN #9444 osi 3~5 4#9 44 # 44 4 NetBIOS# osi 494# 444 sss#4 ^.44 9444^-i 4#44 £ pc #944 WAN^ss] ^7} 99 4994 S94SS 4#9# $1# E 9££E 53E#9 TCP/UDP 9449 £#4 49494- TCP/UDP #449 NetBIOS 4 9 a# RFC 1001, RFC 10024 4494 4## 99 lan#944 NetBios9 4JiL #£44 LAP : Link Access Protocol FTP : Packet Transfer Protocol RSP : Reliable Stream Protocol DTP : Datagram Transport Protocol SMP : Session Management Protocol NMP : Name Management Protocol UDP : User Datagram Protocol DMP : Diagnostic & Monitoring Protocol -142 - 1 Session Name Datagram Miscellaneous ^plication services services services % Data Link Physical MEDIA (HU 4-1) LAN4M NetBIOS^ 4*. NetBIOS NetBIOS^ A)ti)A^ x4)7H5. 4# $14- 4 44^4) tfl-gj) 9-4I4AS. 44 S.7) yoil TCPSJ- UDPS) 4 4^4) t))^)4 42# s.4 s 4-14 44. (5 4-1) TCP S]h UDP a)2 TCP UDP connection-oriented yes no message boundaries no yes data checksum yes opt. positive ack. yes no timeout and remit yes no duplicate detection yes no sequencing yes no flow contol yes no full-duplex yes no -743- t (1) Name services 44 Name serveicesS} #44 4^41 444- 24- ADD.NAME, ADD_GROUP_NAME DELETE.NAME, FIND.NAME NetBIOS* 144 44414 3# 444 4444 444 44444 4414 llsfl 4 44 4 4444 NetBIOS^ 4444 4444 4 4444 41441 44 42 *14 17}6|]4 164441 mi* £4 x42 *444 4444 2141 *142 ’* ’4 ’ IBM’ ±5. 444 4 %4 144 4144 3# 4 ## *97] 4]«fl44 £2427} 3 o]#4 ^H#41 44#4 44 444 4-94 4144 3#s] 444 4442 4 42 £2427} 444324 4444 4 4 ADD_NAME»H ADD_GROUP_NAME 4444 ^}444 ADD_NAMEs} ADD_GROUP_NAME 4 444 3 614* 7}b]?]* 244 44 414 43:1-#4 24 NetBIOSs] 41 24# 214 444 &1 514 3 o]#* 314 244.4444 4 414 214 427} NetBIOSs] 4- 4444] ZH-44-. NetBIOS *441 4 NetBIOS 2l#o] 3 244] $11 £242 * 6] * 2. ai 6]#*1 4441 4411 441 522 44 $14 411 3 6]*o] 4.4444 214 444 4444 44 4# 4441 1454 411 *44 42 41 447} 414- 4 NetBIOS* ADD.NAME! 4 £242# 44 41 *11 3}2, £41 414 NetBi0S7} 4 # ^]o]## #444 41 411 41 4 £2427} ZL *4# 5*442 3^6] DELETE.NAME ^6]6]] 44 ^o] 44 #*6)] 1 3 2#s] NetBIOS 4121 41 3 6]## #2 $14 41422, IBM PC LAN 41 £231# 6]# * 1} 2*1 * 16] 1 444 0.54422 64 4*44 451 421 411 2*4 444 11 £2344 3 6]## 4-147]44 3£S] 44 # 422 4 4 findname 4541 bios 21 54 *444 ^45 5$14 44 414 41 221] - J44 - 44 4#45*#4# 44 S# 11444 (2) Session services 4## session services^}- 11444- CALL, LISTEN SEND, SEND_NO_ACK RECEIVE, RECEIYE.ANY HANG_UP, SESSION.STATUS NetBIOS session service# 1H4S full-duplex6]^ HI6] 5*# 14—44- 4 44# 0-131,071 44 HS] a.7]1- 7]-7]b] NetBIOS6)]!# tflH 444# 7)]#47] 4# 4- NetBIOS session6)]!# cl lent, servers! #H4 % ^S^l^.7]- H LISTEN 114 # fW4 server! !## 4S HI client/]- LISTEN6)] W4# 4#SS CALL 1 14# f^41, client!- serverAH6)] session6] 1114 LISTEN 114# £#4# 411 4# H 4#4 3:#4# 4-^1 6]## S# 11^ ^44 44- 3l#4# 4 1 4## * 5. S44 # $1#4 4 l#6)]# 414 444 44 444 414 44 4 4 S34]^£ 44444 144 LISTEN 1144 call 1144 3:44 55.4^44 44 session 43:4 44 #4 4 If #4 SEND4 RECEIVE 114 41 session# 41 44 4 Af-g. 44 . 4— H5.444 4444 ^# session# 7>1 f $i4- 44 session 43:4 HANGJJP 1147]- 4— session# #4 144# 1144 4s. 1#14- s# SEND#44 ^ 3:#7H]t)1 %°\7\71 i6)] 4# 4^!SS#4 #144 s]14 S4# 4444 4141s receive 114s 44 444# 144 14 4# 4^14 /)] 41# s^4 41# 444# 45*## #114 f# 144. RECEIVE.any 114# ssi]^4 #7}] session# 114s $1# s# 44S44 #4# 4# f -/4J- $14. (3) Datagram services 4## NetBIOS Datagram services^ ^0^444 SEND_DATAGRAM , SEND_BROADCAST_DATAGRAM RECEI VE_DATAGRAM, RECEIVE_BROADCAST_DATAGRAM Datagram services* 4 4# 4 2 -ys)#4 44- Datagram* 4^ 4#—& 5.4444 44) im] 4*1 * a±4 512 aHS 1444 4414 SBND.DATAGRAM ^1444* 4444 4## 4444 44. % 0)1-6 *44 4 i<2] fs SU zz.14 o| #4 *2 a±4 receive.datagram 4% 44 4b) 5*44 $144 ^t#444 RECEIVE.DATAGRAM 4^44 SI** ZL datagram* 1* 44 4## 44*H 44- 2. #4"* ZZ. o)l o_S. 5L41 datagram44- 1*4 SEND_BROADCAST_DATAGRAM 4^4* 444# 44 44 2* NetBIOS 4^144 5.4 #4. 44445. RECEIVE_BROADCAST_DATAGRAM 4^4# 554^444 44#4 44. (4) Miscellaneous services #4# 44 44—* 4444, Network adapter card4 44 44 ^ reset 7)*4 414 *341 4^44 4* 1# 4*44 RESET, CANCEL ADAPTER.STATUS, UNLINK . -146 ~ RESET ##4# NetBIOS 4#4 session 44## 492 494 session# 25 415 44 . CANCEL ##4# Aj-e-4 55.4^7> NetBIOS ##4## ti]-§-7]425. A}## 9 $14 2 7}#44 4, A>#7> 3&A|1^ #44# Af-§-47j 47]4 ZL3H #4 4 44 44 44# ##4 . ##47} 45^ 4# =5.4^44 #444 25A)]27h 42 44 44 44 5*3 44# #4 # 4 $1# 4# 4 #44 44. 4444 #347} NetBIOS 9-4 414 44444 canel 444# #4 444# #544. #4 454# 4447} send# 49-41# #4# 4 session4 4544- STATUS 444# 44 4#44 #4 4#4 #4# 44 #4 441# #494. NetBIOS 24 * 4th NetBIOS 4#£-§£. 5494. #44S NetBIOS# IBM PC# 94 6ll Al# 2:#aH4 #49# 44 94 427} 3 44 944 44- 424 . #-. IPX/SPX#- NetBIOS IPX (Internetwork Packet Exchange) 4 SPX (Sequenced packet Exchange) # PC LAN a]# 4 45## 4#42 ## Novell’s NetWare6)]# 4]#4# 255#5a] 2## 44- Xerox ’s Internet Datagram Protocol#- Sequenced Packet Protocol# 944 #44. IPX/SPX7} 4194# =5.2414 #4414^# 2524144# =55## 9# 4-B-259 4 ## 4## #44# 94 ##4 44 #44 44] =5241 ## 44 4#4 IPX/SPX =55#4 44] 9444 # #44 a)15a}9# 4545 #2 $144 44# 4 44 . NetBIOS6)] 444 IPX/SPX ### 444 252# 44 44#4 NetWare6)]A]# # 444# #4# 7}7]2 $14 . 244 NetWare 4444A]# 4# 25244 44 54 4# ## 4## #447] 494] Novell’s NetWare# 4 ### 244 4 #4444 44 4^## 44 £ 444 4M4#4 1 9 #4 NetBlos4 ###25 #«H NetWare6)]a|9 IPX/SPX 44 NetBIOS emulator# #44 NetBIOS. 2524# 4## 4]9 42 $14 244 #4 NetBlOS4 497} IPX/SPX4 495 4447] 4I#6)] 494 4 # -747- < 5 v 4 42-2]# ±3.*M £]££ 44# 34 #4. 2. Windows Sockets 7>. 7)]0. 454 #1 441 494 49 - tfl-g-E-S. 5542 $1# Windows Sockets# Windows# ## =235 4#44 4# 45.^3 2=549] 4 #4##44 H# Windows Network API (Application Programming Interface)# 4##?] 4)4 ##4 3.4- Windows Sockets# TCP/IP# 4#4 43-4344 4## 5# =5.34# 44442 54 44#5 $1# Berkley Sockets4 4444 ##4#24 4# #5# 4#4- 35] 2.5 Windows Sockets# 4.3 BSD (Berkley Sockets Distribution)# 7]## 4 #t## 5 #42 #44 5# Berkley Sockets routines# #4# Windows# #### 4] #44- 4 Windows#25 #### 3 4#4 WSABf# 3#47]- #24, ##44 Windows^ =5344 4 -44 - #4 4444 44 4#4425 4S434 4## f #4 #25 Windows Sockets4 4# ### 3b]2 ±4# 4## #4 44# 4445# 4 514 4 Sockets #44 7]# 94 #4# 2344. 34 4-2# Windows Sockets 4#4444# 5# 4# 4 4#4# 4# 94 #4# 544 444 ±4# 4#4 W 444# #44 #4## 444 4#4# 444 23# 4-44- 44# =342 # 7M2 $14 Windows Sockets# 444 #4 54] $1(44 3 5*04)# 4#44 23# 4#7H5 3 47]# #4 #55 44 ##42 43 #7>4 444 #54 #244 44# 254 25 (stream socket) 44 7]4 55 44 4=44549 4444 &2 4444 3H]2 #4^7] ^ 444 2## 5#44 447 ] 44# 44435 #4 (datagram socket) 44 . 251 254 # 443 4 #1# 441- 4 4# 4445 544 &## 3#4 -/48- 4 4, 4442# A54-4-& 4M4# 4b 4-4414 #4€ 4)44 E-b S.'S -^44 4# #4s 44wl# ## 4 $14fe 544% 444-:i# ±m #M1 44# 4444 •5] 7]4 54 (record boundaries) 7}- 4)444 $14# 544. 44434 34# 4444 Ethernets}- #-& 44 45 344 4^^344 1- t $1# 4### Si# 4&4 Windows Sockets Application "l^SIv:1 < \ - - - - , ,^k& sbr\>t , Windows Sockets Windows APIs API (winsock, dll) (GDI/USER/ KERNEL) Physical Network (3.H 4-2) Windows Sockets 4#44444 4-Sr #4 ##E t}-. 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ITU-T ITU-T #44 $19 494 sc (Sub Committee) 44 144444 11# 599 #94 #^944- SG1449 AGCS (audiographic conference service), AVIS (audiovisual interactive service), VPS (videotelephony service), VCS (videoconference service) 94 -178- 94444 44* 99 4421-1: F series 929* *44 9442 92, SG74)4b X.400 HHS 44^4 ZQO. c. ti]*7)4 2**44 99 £14 49* 1^142 $14- SGl544b 242/442 447]** 4b 44711- 44 429 444 944 44 4 4^# 7)11471 444 H series 4 F series 42.44 4142 42, SG844! 499 4444^ 7] 11 7)11471 44 €5)144 4471 9 44 444114=2244 49 214 494 T series 4244 1# 41 %44 4142 94 44 SG84 T series 4 94444 44 44^4 944 494 94 429224 t series 12 4294 444 94. (1) T.120 :Overview of audiographic and audiovisual conferencing in the T series (2) T. 121 :Audiographics conferencing (AGC) (3) T. 122 :Multipoint communication service(MCS) for audiographics and audiovisual conferencing (service definition) (4) T. 123 '.Protocol stacks for audiographic and audiovisual teleconferencing applications (5) T. 124 :Generic conference control (GCC) for audiovisual terminals and multipoint control units (6) T. 125 :Multipoint communication service (MCS) for audiographics and audiovisual conferencing(protocol specification) 4. 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(5 5-5) $14 4244 4# 4 4 4# ###44 4# 9# 442 4# 44 149 # # # 9 4 1 9 $14 24 ### -¥-4 ### 29 4 4 4 s) ### ## 29 ### ## 4 4 12 4 $) ### 44 4 4 4 4 2 4 9 4 2 # 14/1414- 4 4 444 21 4 #4 1# #14 1# 99944 4-9- 4- 44 44 M5.-E4 9-% (1) NetBl0S4I44 4144- 41^4 -#-§- 9 42H-E: NetBIOS #1$M4 911 421254 2 91 ### 114-4 4«l) 4# NetBIOS*!]! 24# 444 9-24- 4 44 Command# #44 # #214 #4 4 ## NetBIOS# ### 44 4^4 structure44 -195- struct Neb | unsigned char NcbCommand; unsigned char NcbRetCode; unsigned char NcbLsn; unsigned char NcbNum; LPSTR NcbBuffer; unsigned int NcbLength; char NcbCallName(16); char NcbName(16); unsugned char NcbRto; unsigned char NcbSto; FARPROC NcbPostRoutine; unsigned char NcbLanaNum; unsigned char NcbCmdCmplt 5 char NcbReservedArea (14) ; HWND hWnd; HANDLE hNcb; LPNCB lpNext; LPNCB IpPrev; 1 ; NcbCommand 6))# Zl#6)## Add Group Name, name table 4) 6)## Add Name, destination names)- session# "M6)## Calls)- Listen, name table6))-*) 6}-§#r ^I-t* 7) -9)# Delete name, session-# ^s)-9)# Hang Up, ^)6)^)-# #s)-9)^l- ReceiveS)- Receive Datagram, ^)6)^)-# M.4)s) -?)# Sends}- Send Datagram6) oj-g- command#-# -196 ~ 4444 444414 7HJL -y*. NcbLsn-b 4# m*} 4*4 3* #444 NcbNuml Add Group* IL#4 J2.* #44 4. 444 #14 4 #4* 4**4 4* 4#, 44 2#53 444* 343 #* 4. NcbRetCode-b command7> #*4-33 *y4$i*4 4# 4* #4*4 444 ## # * 3 444 414 44 4444* 44* t 44 414 NcbBuffer* 444 444 memory pointer# 4-byteS. 3.4*4. 4144 444* *4 4*444*44 44* 444* 4 *** *44 4**4 4 3444 7>44 * 444 5i2byte4* 4* *444 * 434443 4 1#* *44 444* *3 4*4 #4 44 4* 414 53S#4 11* 444 4 44* 44 44 *433 4 *4 4-14414] *#444 (2) 2)4 44 3&I44 4144- 4^4 11 44 414 533*4] 34* 544437]- 44443 4443 % 544437} 4* 4* 444414 434 414 41* 4444* 4* 4144 *** *4 Neb buffer# 44 444414 fields 4*#4 (7» PDU Typel #4 44 34, *4 44, 444 1* *4, 44, **# *4, ** * *#- 3*, **# *4, **# 41, *4# #*, 4#, **# ** 4* 1 4* #4 3444314 4 444 41*4 3 4314 *44 44 3# 5-154- 44-. Message 1 Message2 MyNum DesNum BxtraNum (msg) (msg) (int) (int) (int) Name Data (char) (char) (2# 5-15) PDU typel -197- - Messagel : 4444 444 44414 4 th 44414 5)4 5&5. -i 44414 # #14 ## 444 - Message! : Messagel»] £]4 =&&#-& 4 th 444 14 5444^4 ## 4 4r# 444 - MyNum : 5.4# 44 z# #5:5:4 4 444# 5.Z 5.4# 44 ¥#14# 1 ¥ $14". - DesNum : 444# ##44 z# #5:5.4 #4444 444# 5.4Z4- # 4 # # #44 4 #5:# #44 444 ## 444-44 444# f!W> - ExtraNum : 2 44 1-S.th intergert£Nr 444 4"§-#4. - Name : iZth 4## #4 4444. - Data : is.# 444# #4 4-8-44. (4) PDU Type2 #s 444- ¥5 14 S444Z# 44 pdu44 zl 5-164 444 $14 Messagel Message! MyNum DesNum ExtraNum (msg) (msg) (int) (int) (int) ItemO Iteml Item! Item3 Item4 (char) (char) (char) (char) (char) (ZL# 5-16) PDU Type! - Item 0,1,!, 3, 4 : #£4 f4# 4#4 44 4##4 (4) PDU Types 41 1## 4th 444 PDU44 z! 5-174 444 $14 -198- AX I / s' s' s' s' s' Messagel Message2 MyNum DesNum BxtraNum (msg) (msg) (int) (int) (int) File (char) C2H 5-17) PDU type3 - File : #4# 4-^#4 4#*Rr <8= 4§ #44 4#% (3) 5)4 4)4 9-^ 4444 3444a# 4#4- #-& 44# 44 MH 444 444 4^45# # 4, f# 4S4. (7» ## NetBIOS AddGroup. request Addname. request Addgroup. confirm M 5-18) #4 #4 -199- (S 5-6) ## 94# 44 4444 -^~~--~---^_2444y^ AddGroup. request Addname. request 4444 2# 4# 444 4# 44922 4^ [21 5-19] [21 5-19] ^ 44^# 1-4 4-594 NetBIOS name tabled] 4## #42. 7994 4## 44 25.5. #4 1M 4 #4 4 2#4 4-8-44 44# 444 44 4## NetBIOS name tabled) #44 4# 4## table4 441 444 $14 4# 4444 4M 255#4 4# 44 42# 494. :-:%\wV‘V.N--tt-w^N»ww:*^wsvwv-\-ANNx-s%wwNw.ssvvwvA%sNs\\vw*ssv. (2l 5-19) 44% -200- (4) 3)^4 Convene. request Convene. indication Convene. Convene. response confirm M 5-20) S]4 14 (5. 5-7) 44 14i 41# 4444 ~~_=444s Convene, request Convene, response 44-44 444 4-S’. J7-S- 44 3 m ■ 444 ^4 pdu 44 1 : N 1 : 1 ^----- ^_=s|44^ Convene, indication Convene, confirm S444S.4 convene flag=TRUB, ^"444 4#4 444 41-4 44 47 W4 44 44- 44. 44#&zt 4-A [ 5-21 ] [ 444 4^ 1 444 444 44, 44"4 ±3 &9-71- ^-7>4ti)]7)l -1- g-e 5]4 #4 4^-# -S-W4. 444 4-8-4 4444^44 44 £3 ■S-nF-tr 4% Convene, requests. 44 SSS#4 4iH34. 44 5SS# *<§-§•—5. 3L# -207- 6]] 9-7>^>6)]7l] ^#^4. 6] 4 NetBIOS^ senddatagram 31# #4 1^4. ^4 9"7>^ Convene, indication# 13Z. 2)S] 44H& KSWyWW^KWWWOWW^? MWWPWNWWW^ \ .."V^.x-.1- £vjt.) ?." : >*. >5 .\: & .vIvaw»v»v.^wa' , p.1 5-21) 2)s) 4-6)tq-A (4) 44 44 Confopen. request Confopen. indication (3-1 5-22) 2]S] z] 2)- -202- (£ 5-8) s]4 A 4 34# 44 4444 Confopen. request '"'—~~54nl4M. Confopen. indication 4444 444 open f!ag=TRUB, tunr 444 4-H 44- 44#&% 4^ p.^ 5-23] 44 tan. yj-A PH-5-24] PDU ^A| 1 : N 444 £}4 ; :^H 44^& ;m# t $14. 44 444 e 4* 44 44* 2]Sl A] 2}-^ 4^4- -203- (Hi 5-24) 14^}# 43] 44455 M 4^4 44 TknGive request TknGive indication TknGive response TknGive. confirm (5% 5-25) 444 #4 11 ^14 444# 11$4 4## #4 4 144 444# 44 444 4# 4# 4 44# 444# 4# 144 444# 1144. 54 41# $54 444# ^4 44 #4 444- 44# 444 414 4444 #44# 1# 444 444 #4# 414 1# £# 44444 444# 14 # 444 4## 445 441 44# 414 1# 41444 4 41# 444 (s 5-9) #4# 44 14-E 4# 44-44 TknGive. requset TknGive. response 4444 oixi-ol #4444 444 44 #%#-& #4 #4 44-*- ^4, # 4-444 2.444 4444 ? m 44 ‘ 444 44 44#&% [ 5-26] [ 5-27] PDU ^4 1 : N 1 : 1, 1 : N -^^3j44S TknGive. indication TknGive. confirm S444.M.4 token flag=TRUE, token flag=FALSE, *8*Rr -a m%m 4-4-9-5.ZL #£ [ 5-21 ] [ 444 ] f / (nH 5-26) 4 #4 #4#44 44 4^ -205 ilstv.ii .ssiilsiiisslistsvsssslilsssv ?S5SS5^W^ ' (3^1 5-27) 4-7]44 ### 4& 44 #3.3. 43 H) 444 6IM #4 343 43 4# #4 44 #44# 4444 4444. 4 4 #44 44 #437)- 4344 44 44 35.5.## 444 34 444 4444 #4 #4 4 4-7>7i-d))7)] 4# 7)5)4 #44 44- #4# #44 4444# 4# 44# 33 4-3# 5-284- #4 k US («» mm 44 444* 44* 4# #71-44 #44* 4444 4#* #44* 44 #4 44 44 4# #4444 444* *44 4 4* #42 42. 4€ #44*442 4 444 4444** #44- 3.# 5-29^ #4## 444 4 ^4^ 44423 4^4 4. ■w*ww«y~ w^ww^^^wwwftyw wwftvws (34 5-29) #4# 4# 44423 4^ (4) l-y^S 444* 44 #444 444* 4444 444 4#4 442 444* 4442.4 4 4 4*4* 2444244. 444* 4444 444 44 23.2.#* 4# 444 44 442 4#44 #4* 24 4444 # 44 444* 442 4* #44*44 2 4444 4444** 444 444 44# 44 44423 #2* 34 5-304 # 4- -207- (2! 5-30) 444 41 44#3.3. 4^ H) s]444 1-5)42.4 # 4 4* 4444 #42 444 1444 #44 4 444 44 2.1 4441-44 4444 411 #4 #44 4^244 4444 44 4 4141 44 #22 4^1 21 5-314 2! 5-324 44- (21 5-31) 44 44 #22 4^ -208- S4 ' -t- ‘ (V' I / (ZL^ 5-32) ^7> 44 #62 4^ (4) 2)^6] 7]S- S.7] Report. request Report. indication Report. response Report. confirm M 5.33) Sis] 7)4 S.7] #4 ^7} yu]a|]o]^d|]7] 5]S] 7]## 67]# 441 44 666#44 S]S] #-7>7>, 2] S] ^4, 444, 44 4# #4 S]4 ^6# #4#4. o] 44#2. % 4^ 5-3444. 209- %**•> V M 5-34) 3)4 7]^ 4*1 412 4* #) M 444 4444 2)4# 4H-& IAS 44, 2)4 #44 #4^1 4# s# 443 # 4 #44 344- #43. #4 # 4444# 441 44 3&s#4 1^44 45# 4 4. 44 441 4445.3. 4^# 3i) 5-354 3^ 5-36 4 4 -270- '•'> -v ;H» M 5-35) 4 #4 #4' 44 #22 (ZL^ 5-36) #4 44 #22 4^ M 45) 444 4444 444 44- "t 4 444-&4»l 4# #42 44* 4-4 444-4-. 44- 44#22 4^-b zl% 5-374 - 5-3844-. \ -211 - (3.1 5-37) a) #4 44 44 #3.3 4^ ChattStart. indication* #* 4*4£ ^1 4^4 n dj^s. *]]ig ^]d|Eff. confira#4 43 #*4 -2/2- (23 5-39) *i]34 334- 434 444 - &44 34 - (S 5-10) ^3 43 54-i 4# 4444 ■^^52jn]^a Chatt. request Chatt. response 4444 m 41344 % 3344 34. 43 41344 2-8- m 34. 44422 4^ [ 23 5-40 ] [ 23 5-41 ] PDU 34 1 : 1 1 : 1 Chatt. indication Chatt. confirm =44427]- m-%: # 444 4 43 4^1 4-9-2 34b 4 4-5441- 33. ChattStart. request3"3 444-22 4^ [ 23 5-41] [ 23 5-42 ] -213- \ I -PIZ- f ,2. s i cK o51 M 4a» LA M I (Zl! 5-42) (4) ■¥-s€ 14-fe 0.1 5-464- ^ 14 4^4 444 #4% (n.1 5-43) -f-s 14 2i5 ( S 5-11) #5 #4~i 44 4444 ^^^54443^ Vote, request Vote, response -r-5 #X|]4 -f-S 444 444 #5# w. 4S, 444 44 4445 [ 3! 5-44 ] [ 3^ 5-45 ] PDU ^4 1 : N 1 : 1 ■^-—^4443 Vote, indication Vote, confirm 544437} #5# #444- •f-5 45# 4-T-3 *34# # Vote, request# 4A3 44#33 45 [ Zll 5-45 ] .... iw ttt^vXO i.ftty.0 w.!/ s s '~y «' *' ' 5 ^ ' '' ' " JtH>tmiYt>».ij > iijHtmim) iVftwj i.i.M.t.i.i.0:* I < W.V)W* AV i (3Ll 5-44) 444 45. 44 #33 45 2/6 itiMMa‘'&m(M(tttt(tttm(tfU(t(ttm ■*«•• ff s *#*%**w%)*w****!m# k»w***wwww»%»V»^ (ZL^ 5-46) jpSW 44 4^ 277 M-) mg NetBIOS ConfClose. request ConfClose. DeleteName. indication request DeleteName. request. (0.1 5-47) S)4 14 S# #5)3. 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(2.5G, 10G, 243 ) - 3234#4 39#4 4444 3422 (ATM) 44 # 4-8-44 4#4 433-# 4342 34434- 444] 3344 33324 34444 44^4 333 4 439 49 - 3494 342 @# 444- 4-8-714 434 294 9944 2949, 437> 7]7]e] #342, 9334 3 3339 92 94 W 34444 3492 4 4 ^ 7H3-4 9344. - 34444 49 9233 9*44 443 944- 249 94 3 9233494 49 444-4 94, 44 54#9 7] 9 9# 444 924242 g 997] 7] -282- oil w 5## w# #^#4. - 44 4444 44 #ᅜ SM 44& ^M"l^# 44 W2 #4 af 7]^4 #4 #4 444#4 444# #&&# 44 © 4444 [5 6-2] ## 44444 #44 #4 4444 9- # l 4: 4 2 4 4 3 4 4 45-1-44- 45.1 414- 44# #4 ^ 444- #44 #4/444-/444 9"? 444 #44 4# 44^ #4 4 444- 45. 4 DTC, 4444 1 44 #4 44444 45. 44 4444^ 4# 44 — 44— (44*99, 9#7> 44^) 44444 4# 4-4# 44# 44444# 411 44444 4 #4# 4*94 4-# CATV JM-44^ 4114 44^ 4# 4# 1444^ 44 44 44 4# ;B# -283- © 7] #7%# #4^ 94 (2015) 4-§-7>33-4- _ 94 CATV -9-7] & l-g- ^-44. 3S :7] 71) *g" # CATV ^ CATV 94 CATV tflSHJ 7]j# 71AH 7H# 944 444444 4 < ZLl 6. 6 > W 71471m- 3L#£ ## 44* &Z4 ^44 4 4 4iL444- 94 444- iN444 44 4-9- 4^ 4 7H# tg-»> 1-4 444 447144 7m&44 S44 W4 9 4W #4 -284- T 94 %4- 444 3. 944 94 44449 444 44944 994 ±5L 4944 ^ W9 934 49 9 $154 9434 9939 44 445 $144 4 444. 4# 4449 3594 4 494 4^8 944 3-8.9 449 44355' #44 4 4 94 4949 9 54£95 #444 444 444 9 944 . 4994 3594 43455 99944 444 44 594494 4444 1 99 444 94. -255- -V h.v> 47# 4 -287- V ^ 7 # 2#i4 - #4 gs #1 ti.6>7> 44 , 44 , 44, #4-4 i 44414 i## b] 4# 44# 144 %124 124 444# #4# 44] 9-44 ###47} 4441 4. 294 1#4 7]^ #5^1] 7)-#, # ##7]-##4 ti}-^ o]ej# 1ti.#H A>Sj 44 14444 124# 45# W7M 12# 1#4 # 9 14 ##&2, 41 4 4-6 45)# #4-, 242, 442, 4-4, :25m# 44 444 42# 44# S#12 5. 41, 4#, 44#4 4# ##14 14444 is. 491 7111-4] 9M-# 7>#il 4 # # 49-# 454 14444 12 491 99# 4# 44 444 49##4 s## 4-5## 49-, #44% 9 44 7]4## ##, 444494 d]s]# 14444 l## 44# 444 4# 2.15.4 '14444 DTC( DeskTop Conferencing) 49l' # l]# 444. # 491# #44 #44 (LAN) 44)4 PC# 4-8-4# 494 4-§-4-7> #44] 4444 14444 (#4, 44, 44, 344, #4)# ## 4444 (Die) 4## 4# #4 4 491# 4#4 44 44 4914# 44 4# #4144 4# 4# 444, 4# 44 #4 124 42 4-44 4* 444 7)14# !#4# #4 42 144 4# 49-## #444 1444 14444# 4## 12%## 7f#-#7)] tsfl #4, #4 i:n 4 444 14 #14 7)##5# 4414. 9##- 14- °Fr #444# #441 447M] 14444 4#a] 4^1# 7111# 14- 44# #44 ### 9 4# 4## 4##4# 144 # 49-4 44# ## 9 44- 2# 27>4 47 }# 1444 44 (MCU-Multipoint Control Unit) %4 7] #4 LAN #44 PC# ##4 44# (l:N) 14# 7f#711 #4# 15 4# #442 a# 1:1 19 #14 49124 -124 7]#22 47]#4% -289- X, t 2 ! f -291- X, [1] 4 9=5], '14444 19', 1991. 1. [2] '## 129 95 7H^> 444' , 4-43.2 22244, 1994. 11 [3] '14444 ti>H-o) ti-tq-', D}ol3i Jo], pp. 149-171, 1991. 4. [4] '14444 *]#o] 44-94-', 19412, PP. 162-199, 1992. 5. [5] '4^a& 2221)4' , 1244, pp. 472-473 1995.2 [6] 4 4=4, '14444 1291 7fl6.', 124-44 4 4191 71)33:, pp. 5-18, 1991.6. [7] '14444 12444- ee% 124-4-44 491 432, pp. 19-25, 1991. 6. [8] "44M 14444 191 9 #', e^ew [9] 447)1, '14444 421 7)#', 124444 4)94 4)32, pp. 26- 32, 1991.6. [10] 'Multimedia PC', HCI ’92 4#44 44 4"&1 [11] "444% 4-422222114, 1992.1, pp 128-129 [12] '44444 43-444 99', 914^94= [13] 'Multimedia 4214 "44 4^4 99', 194 421 194 #7] 7M 4*21, 1992. 4 [14] 44-4], '444444 7]^f-f', 124-44, pp. 16-24 [15] 'cd-i 7flji i 4^94 =' [16] 419 , 'dv-i 7H». g 7iewd)', 4-^-1^)91192 , 9i4e 94 =, pp. 2-n [17] 44e, 'dv-i 7fl_g_ i 4^94 = a O', 4917 )91192 , 9i4e 94=, pp. 2-13 [18] 449-, 'CD-I 7]]A 1 4^94= (O', 4917)91192, 914^ 94=, pp. 2-11 [19] 444, 'FDDI (Fiber Distributed Data Interface),' 149", 4)7! 1 2, pp 29-37, 1991! 5-g. 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