prusue 2007-11-11 13:02
网络通信协议----ITU-T H.245标准
>>发附件贴请务必注明以下选项：>>
【资料成文时间】：
【语言】：英文
【页数】： 219
【何人（公司）所著】： ITU-T
【文件格式】：pdf
【文件原名】： ITU-T H.245
【摘要或目录】：
CONTENTS
1 SCOPE .....................................................................................................................................................................1
2 REFERENCES ........................................................................................................................................................1
3 DEFINITIONS.........................................................................................................................................................4
4 ABBREVIATIONS..................................................................................................................................................6
5 GENERAL...............................................................................................................................................................8
5.1 MASTER-SLAVE DETERMINATION..............................................................................................................................8
5.2 CAPABILITY EXCHANGE............................................................................................................................................8
5.3 LOGICAL CHANNEL SIGNALLING PROCEDURES ............................................................................................................9
5.4 RECEIVE TERMINAL CLOSE LOGICAL CHANNEL REQUEST..............................................................................................9
5.5 H.223 MULTIPLEX TABLE ENTRY MODIFICATION.........................................................................................................9
5.6 AUDIOVISUAL AND DATA MODE REQUEST ...................................................................................................................9
5.7 ROUND TRIP DELAY DETERMINATION .........................................................................................................................9
5.8 MAINTENANCE LOOPS ..............................................................................................................................................9
5.9 COMMANDS AND INDICATIONS..................................................................................................................................9
6 MESSAGES: SYNTAX .........................................................................................................................................11
7 MESSAGES: SEMANTIC DEFINITIONS ...........................................................................................................51
7.1 MASTER SLAVE DETERMINATION MESSAGES ............................................................................................................51
7.1.1 Master Slave Determination...........................................................................................................................51
7.1.2 Master Slave Determination Acknowledge ......................................................................................................51
7.1.3 Master Slave Determination Reject.................................................................................................................51
7.1.4 Master Slave Determination Release...............................................................................................................51
7.2 TERMINAL CAPABILITY MESSAGES ...........................................................................................................................52
7.2.1 Overview........................................................................................................................................................52
7.2.2 Terminal Capability Set .................................................................................................................................52
7.2.3 Terminal Capability Set Acknowledge.............................................................................................................62
7.2.4 Terminal Capability Set Reject .......................................................................................................................62
7.2.5 Terminal Capability Set Release .....................................................................................................................62
7.3 LOGICAL CHANNEL SIGNALLING MESSAGES ..............................................................................................................63
7.3.1 Open Logical Channel ...................................................................................................................................63
7.3.2 Open Logical Channel Acknowledge...............................................................................................................66
7.3.3 Open Logical Channel Reject .........................................................................................................................66
7.3.4 Open Logical Channel Confirm ......................................................................................................................67
7.3.5 Close Logical Channel...................................................................................................................................67
7.3.6 Close Logical Channel Acknowledge ..............................................................................................................68
7.3.7 Request Channel Close ..................................................................................................................................68
7.3.8 Request Channel Close Acknowledge..............................................................................................................68
7.3.9 Request Channel Close Reject.........................................................................................................................68
7.3.10 Request Channel Close Release ....................................................................................................................68
7.4 MULTIPLEX TABLE SIGNALLING MESSAGES...............................................................................................................69
7.4.1 Multiplex Entry Send .....................................................................................................................................69
7.4.2 Multiplex Entry Send Acknowledge .................................................................................................................69
7.4.3 Multiplex Entry Send Reject...........................................................................................................................69
7.4.4 Multiplex Entry Send Release .........................................................................................................................69
7.5 REQUEST MULTIPLEX TABLE SIGNALLING MESSAGES................................................................................................70
7.5.1 Request Multiplex Entry.................................................................................................................................70
7.5.2 Request Multiplex Entry Acknowledge ............................................................................................................70
7.5.3 Request Multiplex Entry Reject.......................................................................................................................70
7.5.4 Request Multiplex Entry Release.....................................................................................................................70
7.6 REQUEST MODE MESSAGES.....................................................................................................................................71
ii Recommendation H.245
7.6.1 Request Mode ................................................................................................................................................71
7.6.2 Request Mode Acknowledge...........................................................................................................................74
7.6.3 Request Mode Reject......................................................................................................................................74
7.6.4 Request Mode Release ...................................................................................................................................74
7.7 ROUND TRIP DELAY MESSAGES...............................................................................................................................75
7.7.1 Round Trip Delay Request ..............................................................................................................................75
7.7.2 Round Trip Delay Response ............................................................................................................................75
7.8 MAINTENANCE LOOP MESSAGES ..............................................................................................................................75
7.8.1 Maintenance Loop Request .............................................................................................................................75
7.8.2 Maintenance Loop Acknowledge....................................................................................................................75
7.8.3 Maintenance Loop Reject...............................................................................................................................75
7.8.4 Maintenance Loop Command Off....................................................................................................................75
7.9 COMMUNICATION MODE MESSAGES ........................................................................................................................75
7.9.1 Communication Mode Command ...................................................................................................................75
7.9.2 Communication Mode Request........................................................................................................................75
7.9.3 Communication Mode Response......................................................................................................................75
7.10 H.223 ANNEX A RECONFIGURATION MESSAGES .....................................................................................................76
7.10.1 H.223 Annex A Reconfiguration...................................................................................................................76
7.10.2 H.223 Annex A Reconfiguration Acknowledge ..............................................................................................76
7.10.3 H.223 Annex A Reconfiguration Reject .........................................................................................................76
7.11 CONFERENCE REQUEST AND RESPONSE MESSAGES.................................................................................................76
7.11.1 Terminal List Request ..................................................................................................................................76
7.11.2 Terminal List Response ................................................................................................................................76
7.11.3 Make Me Chair............................................................................................................................................76
7.11.4 Cancel Make Me Chair ................................................................................................................................76
7.11.5 Make Me Chair Response .............................................................................................................................76
7.11.6 Drop Terminal .............................................................................................................................................76
7.11.7 Terminal Drop Reject...................................................................................................................................77
7.11.8 RequestTerminal ID .....................................................................................................................................77
7.11.9 MC Terminal ID Response ............................................................................................................................77
7.11.10 Enter H.243 Password Request ...................................................................................................................77
7.11.11 Password Response ....................................................................................................................................77
7.11.12 Enter H.243 Terminal ID Request ...............................................................................................................77
7.11.13 Terminal ID Response................................................................................................................................77
7.11.14 Enter H.243 Conference ID Request ...........................................................................................................77
7.11.15 Conference ID Response .............................................................................................................................77
7.11.16 Video Command Reject ...............................................................................................................................77
7.12 COMMANDS.........................................................................................................................................................78
7.12.1 Send Terminal Capability Set........................................................................................................................78
7.12.2 Encryption ...................................................................................................................................................78
7.12.3 Flow Control................................................................................................................................................78
7.12.4 End session ..................................................................................................................................................78
7.12.5 Miscellaneous Command ..............................................................................................................................79
7.12.6 Conference Command..................................................................................................................................80
7.13 INDICATIONS .......................................................................................................................................................81
7.13.1 Function Not Understood.............................................................................................................................81
7.13.2 Miscellaneous Indication ..............................................................................................................................81
7.13.3 Jitter Indication ...........................................................................................................................................81
7.13.4 H.223 Skew Indication .................................................................................................................................82
7.13.5 New ATM Virtual Channel Indication ...........................................................................................................82
7.13.6 User Input....................................................................................................................................................83
7.13.7 Conference Indications ................................................................................................................................83
7.13.8 H2250 Maximum Logical Channel Skew .......................................................................................................83
7.13.9 MC Location Indication ...............................................................................................................................84
7.13.10 Vendor Indication ......................................................................................................................................84
7.13.11 Function Not Supported ..............................................................................................................................84
8 PROCEDURES......................................................................................................................................................85
8.1 INTRODUCTION......................................................................................................................................................85
8.1.1 Method of specification..................................................................................................................................85
8.1.2 Communication between protocol entity and protocol user .............................................................................85
Recommendation H.245 iii
8.1.3 Peer-to-peer communication ...........................................................................................................................85
8.1.4 SDL Diagrams ...............................................................................................................................................86
8.1.5 SDL Key ........................................................................................................................................................86
8.2 MASTER SLAVE DETERMINATION PROCEDURES .........................................................................................................87
8.2.1 Introduction ...................................................................................................................................................87
8.2.2 Communication between the MSDSE and the MSDSE user .............................................................................88
8.2.3 Peer to peer MSDSE communication ..............................................................................................................90
8.2.4 MSDSE procedures........................................................................................................................................91
8.3 CAPABILITY EXCHANGE PROCEDURES ......................................................................................................................98
8.3.1 Introduction ...................................................................................................................................................98
8.3.2 Communication between CESE and CESE user...............................................................................................98
8.3.3 Peer to peer CESE communication ...............................................................................................................100
8.3.4 CESE procedures.........................................................................................................................................101
8.4 UNI-DIRECTIONAL LOGICAL CHANNEL SIGNALLING PROCEDURES............................................................................108
8.4.1 Introduction .................................................................................................................................................108
8.4.2 Communication between the LCSE and the LCSE user..................................................................................109
8.4.3 Peer to peer LCSE communication................................................................................................................111
8.4.4 LCSE procedures .........................................................................................................................................112
8.5 BI-DIRECTIONAL LOGICAL CHANNEL SIGNALLING PROCEDURES ..............................................................................120
8.5.1 Introduction .................................................................................................................................................120
8.5.2 Communication between the B-LCSE and the B-LCSE user ..........................................................................121
8.5.3 Peer to peer B-LCSE communication ............................................................................................................124
8.5.4 B-LCSE procedures .....................................................................................................................................125
8.6 CLOSE LOGICAL CHANNEL PROCEDURES................................................................................................................134
8.6.1 Introduction .................................................................................................................................................134
8.6.2 Communication between CLCSE and CLCSE user ........................................................................................134
8.6.3 Peer to peer CLCSE communication .............................................................................................................136
8.6.4 CLCSE procedures.......................................................................................................................................137
8.7 H.223 MULTIPLEX TABLE PROCEDURES.................................................................................................................142
8.7.1 Introduction .................................................................................................................................................142
8.7.2 Communication between the MTSE and MTSE user ......................................................................................143
8.7.3 Peer to peer MTSE communication ...............................................................................................................145
8.7.4 MTSE procedures ........................................................................................................................................146
8.8 REQUEST MULTIPLEX ENTRY PROCEDURES ............................................................................................................153
8.8.1 Introduction .................................................................................................................................................153
8.8.2 Communication between RMESE and RMESE user.......................................................................................153
8.8.3 Peer to peer RMESE communication ............................................................................................................155
8.8.4 RMESE procedures......................................................................................................................................156
8.9 MODE REQUEST PROCEDURES...............................................................................................................................160
8.9.1 Introduction .................................................................................................................................................160
8.9.2 Communication between MRSE and MRSE user ...........................................................................................161
8.9.3 Peer to peer MRSE communication...............................................................................................................163
8.9.4 MRSE procedures ........................................................................................................................................163
8.10 ROUND TRIP DELAY PROCEDURES........................................................................................................................170
8.10.1 Introduction ...............................................................................................................................................170
8.10.2 Communication between the RTDSE and the RTDSE user...........................................................................170
8.10.3 Peer to peer RTDSE communication ...........................................................................................................171
8.10.4 RTDSE procedures.....................................................................................................................................172
8.11 MAINTENANCE LOOP PROCEDURES ......................................................................................................................176
8.11.1 Introduction ...............................................................................................................................................176
8.11.2 Communication between the MLSE and the MLSE user...............................................................................176
8.11.3 Peer to peer MLSE communication .............................................................................................................179
8.11.4 MLSE procedures.......................................................................................................................................180
APPENDIX I ANNEX A - OBJECT IDENTIFIER ASSIGNMENTS...................................................................186
APPENDIX I APPENDIX I - OVERVIEW OF ASN.1 SYNTAX..........................................................................187
I.1 INTRODUCTION TO ASN.1 ....................................................................................................................................187
I.2 BASIC ASN.1 DATA TYPES....................................................................................................................................187
I.3 AGGREGATE DATA TYPES......................................................................................................................................189
I.4 OBJECT IDENTIFIER TYPE ......................................................................................................................................190
iv Recommendation H.245
APPENDIX II APPENDIX II - EXAMPLES OF H.245 PROCEDURES..............................................................191
II.1 INTRODUCTION ...................................................................................................................................................191
II.2 MASTER SLAVE DETERMINATION SIGNALLING ENTITY ..........................................................................................191
II.3 CAPABILITY EXCHANGE SIGNALLING ENTITY........................................................................................................195
II.4 LOGICAL CHANNEL SIGNALLING ENTITY...............................................................................................................196
II.5 CLOSE LOGICAL CHANNEL SIGNALLING ENTITY....................................................................................................198
II.6 MULTIPLEX TABLE SIGNALLING ENTITY ...............................................................................................................200
II.7 MODE REQUEST SIGNALLING ENTITY....................................................................................................................202
II.8 ROUND TRIP DELAY SIGNALLING ENTITY..............................................................................................................203
II.9. BI-DIRECTIONAL LOGICAL CHANNEL SIGNALLING ENTITY ....................................................................................204
APPENDIX III APPENDIX III - SUMMARY OF PROCEDURE TIMERS AND COUNTERS.........................207
III.1 TIMERS..............................................................................................................................................................207
III.2 COUNTERS.........................................................................................................................................................207
APPENDIX III APPENDIX IV - H.245 EXTENSION PROCEDURE..................................................................209
[[i] 本帖最后由 nxsunny 于 2007-11-29 11:15 编辑 [/i]]
steveyzhang 2008-4-2 23:17
天啊，好贵啊，我下不起。
huahua51 2008-4-13 20:09
呵呵,想这个标准很久了. 不知道下次楼主能不能压缩下,这样下载的时候可以少要点银子啊.