ITU-T Q 2965 1-1999 Digital Subscriber Signalling System No 2 - Support of Quality of Service Classes《No 2数字用户信令系统 业务等级质量的支持》.pdf

1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.29651 SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling (03/99) Digital subscriber signalling system No. 2 - Support of Quality of Service classes ITU-T

2、Recommendation Q.2965.1 (Previously CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE XINCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING

3、SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM RI SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. I PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS I

4、NTELLIGENT NETWORK NTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING LAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 BROADBAND ISDN General aspects Signalling ATM adaptation layer (SAAL) Signalling network protocols Common aspects of B-ISDN application

5、protocols for access signalling and network signalling and interworking B-ISDN application protocols for the network signalling Q.1-Q.3 Q .4-Q.59 Q .60-Q .99 Q.1 OO-Q.1 I9 Q. 120-Q.249 Q.250-Q.309 Q.310-Q.399 Q.400-Q.499 Q.500-Q.599 Q.600-Q.699 Q.700-Q.849 Q.850-Q.999 Q.lOOO-Q.1 O99 Q.1100-Q.l I99 Q

6、.1200-Q.1699 Q.1700-Q.1799 Q.2000-Q.2999 Q.2000-Q.2099 Q.2100-Q.2199 Q.2200-Q.2299 Q.2600-Q.2699 Q.2700-Q.2899 For further details, please refer to ITU-T List of Recommendations. ITU-T RECOMMENDATION Q.2965.1 DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - SUPPORT OF QUALITY OF SERVICE CLASSES Summary

7、This Recommendation is part of the DSS2 family of ITU-T Recommendations. It specifies the revision of the Quality of Service (QoS) parameter information element coding from that which was specified in the first edition of Recommendation 4.2931 (1995) in order to enable the signalling of Quality of S

8、ervice (QoS) classes defined in Recommendation 1.356 (1996). Source ITU-T Recommendation 4.2965.1 was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 15th of March 1999. 1 Recommendation Q.2965.1 (03/99) FOREWORD ITU (International Telec

9、ommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITW. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on th

10、em with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, estabiishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics. The approval

11、 of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation the te

12、rm recognized operating agency (ROA) includes any individual, company, corporation or governmental organization that operates a public correspondence service. The terms Administration, ROA and public correspondence are defined in the Constitution of the ITU (Geneva, 1992). INTELLECTUAL PROPERTY RIGH

13、TS The ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserte

14、d by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, the ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned

15、 that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O ITU 1999 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfi

16、lm, without permission in writing from the ITU. 1 Il Recommendation Q.2965.1 (03/99) I CONTENTS Page 1 2 3 4 5 6 6.1 6.2 6.3 7 8 8.1 9 9.1 9.2 10 Scope References Definitions Abbreviations . Description . Operation requirements Provision and withdrawal . Requirements at the originating network side

17、Requirements at the terminating network side . Primitives . Coding requirements Quality of Service parameter Signalling procedures at the coincident SB and TB reference point . Connection establishment at the originating interface . Call/Connection establishment at destination interface . Signalling

18、 procedures at TB reference point for interworking with private B-ISDNS . Annex A . Valid combinations of bearer class. broadband transfer capability. ATM traffic descriptor parameters and QoS classes . 1 1 2 2 3 3 3 3 4 4 5 5 5 Recommendation 4.2965.1 (03/99) . 111 Recommendation Q.2965.1 DIGITAL S

19、UBSCRIBER SIGNALLING SYSTEM No. 2 - SUPPORT OF QUALITY OF SERVICE CLASSES (Geneva, 1999) 1 Scope The Q.2965-series Recommendations covers the support of quality of service indication for the Broadband Integrated Services Digital Network (B-ISDN) at the TB reference point or coincident SB and TB refe

20、rence point as defined in Recommendation 1.413 lo by means of the Digital Subscriber Signalling System No. 2 (DSS2). This Recommendation defines DSS2 protocol formats and procedures that support the indication of Quality of Service-related capabilities. This Recommendation is part of the DSS2 family

21、 of ITU-T Recommendations. It specifies the revised coding of the 4.2931 2 Quality of Service parameter information element specifically to enable the identification of the QoS class (see Recommendation 1.356 11). 2 References The following ITU-T Recommendations and other references contain provisio

22、ns which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possib

23、ility of applying the most recent addition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. ITU-T Recommendation 1.3 56 (1 996), B-ISDN ATM layer cell transfer performance. ITU-T Recommendation 4.293 1 (1 995), Digi

24、tal subscriber signalling system No. 2 - User-Network Interface (UNJ layer 3 speccation for basic call/connection control, plus Amendment 1. ITU-T Recommendation 4.297 1 (1 995), Digital subscriber signalling system No. 2 - User-Network Interface (UN4 layer 3 specification for point-to-multipoint ca

25、ll/connection control. ITU-T Recommendation 4.296 1.2 (1 997), Digital subscriber signalling system No. 2 - Additional trafic parameters: Support of ATM transfer capability in the broadband bearer capability information element. ITU-T Recommendation 1.37 1 (1 996), Trafic control and congestion cont

26、rol in B-ISDN. ITU-T Recommendation 4.2961.3 (1997), Digital subscriber signalling system No. 2 - Additional traffic parameters: Signalling capabilities to support traffic parameters for the available bit rate (ABR) ATM transfer capability. ITU-T Recommendation 4.296 1.4 (1 997), Digital subscriber

27、signalling system No. 2 - Additional traeries H ;eries I :cries J Series K Series L Series M Ireries N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z ITU-T RECOMMENDATIONS SERIES Organization of the work of the ITU-T Means of expression: definition

28、s, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems and media, digital systems and networks Audiovisual and multimedia

29、 systems Integrated services digital network Transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other elements of outside plant TMN and network maintenance: international transmission system

30、s, telephone circuits telegraphy, facsimile and leased circuits Maintenance: international sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, telephone installations, local line networks Switching and signalling Telegraph transm

31、ission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems Printed in Switzerland Geneva, 1999