ITU-T Q 2961 6-1998 Digital Subscriber Signalling System No 2 - Additional Traffic Parameters Additional Signalling Procedures for the Support of the SBR2 and SBR3 ATM Transfer Cap.pdf
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1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STAN DAR DIZATI ON SECT0 R OF ITU Q.2961.6 SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling (05198) Digital Subscriber Signalling System No. 2 - Add it i o na I traffic parameters : Ad
2、d it i on al signalling procedures for the support of the SBR2 and SBR3 ATM transfer capabilities ITU-T Recommendation Q.2961.6 (Previously CCIT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE INTERNATIONAL AUTOMATIC AND SEMI-AUT
3、OMATIC WORKING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM Rl SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SP
4、ECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK BROADBAND ISDN General aspects Signalling ATM adaptation layer (SAAL) Signalling network protocols Common aspects of B-ISDN app
5、lication protocols for access signalling and network signalling and interworking B-ISDN application protocols for the network siqnallina CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.1-Q.3 Q.4-Q.59 Q.60-(2.99 Q. 1 004.1 1 9 Q. 1 204.249 Q.250-Q.309 Q.310-Q.399 Q.400-(2.499 Q.500-Q.599 Q.60-Q.699 Q.
6、700-(2.849 Q.850-Q.999 Q. 1000-Q. 1 O99 Q. 1 1 004.1 1 99 Q.1200-Q. I999 Q.2000-Q.2999 Q.2000-Q.2099 Q.21004.2199 Q.2200-Q.2299 Q.2600-Q.2699 Q.2700-Q.2899 - - B-ISDN application protocols for access signalling Q.290-Q.2999 For further details, please refer to ITU-T List of Recommendations. STD-ITU-
7、T RECMN 8.29bL.b-ENGL 1998 m 48b2591 Ob53731 421 W ITU-T RECOMMENDATION Q.2961.6 DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - ADDITIONAL TRAFFIC PARAMETERS: ADDITIONAL SIGNALLING PROCEDURES FOR THE SUPPORT OF THE SBR2 AND SBR3 ATM TRANSFER CAPABILITIES Summary This Recommendation defines the operati
8、on of the Digital Subscriber Signalling System No. 2 (DSS2) for the support of the SBR and SBR3 ATM transfer capabilities defined in Recommendation 1.371 that may be used for basic call and connection control at the TB or at the coincident SB and TB reference point of the user-to-network interface o
9、f the Broadband Integrated Services Digital Network (B-ISDN). The additional procedures defined in this Recommendation enable the call requesting user to invoke call/connection establishment between users using a connection for which the Statistical Bit Rate configuration 2 or 3 (SBW or SBR3) ATM tr
10、ansfer capability is applied by the network. Source ITU-T Recommendation Q.2961.6 was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 15th of May 1998. FOREWORD ITU (International Telecommunication Union) is the United Nations Specialize
11、d Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the IT. The ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on
12、 a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is co
13、vered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fali within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration” is used for conciseness to
14、 indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS 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 posit
15、ion concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted 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, pr
16、otected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. O ITU 1998 All rights reserved. No part of this publication may be r
17、eproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. I Recommendation 4.2961.6 (05/98) 11 STD.ITU-T RECMN Q-29bL*b-ENGL 1998 48b259L Ob53933 2T4 m 1 2 3 4 5 6 6.1 6.2 6.3 7 7.1 7.2 8 8.1 8.2 9 9
18、.1 9.2 9.3 10 11 11.1 11.2 12 13 14 CONTENTS Page Scope References Definitions Abbreviations . Description . Operational requirements . Provision and withdrawal . Requirements at the originating network side Requirements at the terminating network side . Primitive and state definitions Primitive def
19、initions . Call states Coding requirements Messages . 8.1.1 SETUP . Information elements 8.2.1 ATM traffic descriptor information element . 8.2.2 Broadband bearer capability information element Signalling procedures at the coincident SB and TB reference point Procedures applicable at the originating
20、 interface 9.1 . 1 Traffic parameter selection procedures . Procedures applicable at the destination interface Handling of specific error conditions . Signalling procedures at the TB reference point for intenvorking with private B- ISDNs . Interworking with other networks Interaction with entities w
21、hich do not support SBR2 and SBR3 . Interworking with N.ISDN . Interactions with supplementary services . Parameter and timer values . Dynamic description (SDLs) Recommendation Q.2961.6 (05/98) 1 1 2 2 2 2 3 3 6 . 111 Page Annex A - Valid combinations of bearer class, broadband transfer capability,
22、and ATM traffic descriptor parameters for the support of the SBR2 and SBR3 ATM transfer capability 6 Annex B - Clarification on the support of SBR2 and SBR3 ATM transfer capabilities by this Recommendation . 7 iv Recommendation 4.2961.6 (05/98) 1- - Recommendation Q.2961.6 DIGITAL SUBSCRIBER SIGNALL
23、ING SYSTEM NO. 2 - ADDITIONAL TRAFFIC PARAMETERS: ADDITIONAL SIGNALLING PROCEDURES FOR THE SUPPORT OF THE SBR2 AND SBR3 ATM TRANSFER CAPABILITIES (Geneva, 1998) 1 Scope Recommendation 4.2961 covers the support of additional traffic parameters for the Broadband Integrated Services Digital Network (B-
24、ISDN) at the TB reference point or coincident SB and TB reference point as defined in Recommendation 1.413 i by means of the Digital Subscriber Signalling System No. 2 (DSS 2). This Recommendation defines the DSS 2 protocol procedures, formats and functions needed to support the identified ATM traff
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