ITU-T Q 2961 2-1997 Digital subscriber signalling system No 2 C Additional traffic parameters Support of ATM transfer capability in the broadband bearer capability information elem.pdf
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1、STD-ITU-T RECMN Q-29bL-Z-ENGL 3777 W 48b257L ObliL214 273 W INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMU N KATION STANDARDIZATION SECTOR OF ITU Q.2961.2 SERIES Q: SWITCHING AND SIGNALLING Broadband ISDN - B-ISDN application protocols for access signalling (06/97) Digital subscriber signalli
2、ng system No. 2 - Additional traffic parameters: Support of ATM transfer capability in the broadband bearer capability information element ITU-T Recommendation Q.2961.2 (Previously CCIlT Recommendation) STD-ITU-T RECMN Q=27bL*Z-ENGL 1777 48b257L Ob4L2L5 L2T ITU-T Q-SERIES RECOMMENDATIONS SWITCHING A
3、ND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1-Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4-Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.604.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100-Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND N
4、o. 5 Q.120-Q.249 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 Q.250-Q.309 SPECIFICATIONS OF SIGNALLING SYSTEM RI Q.310-(2.399 SPECIFICATIONS OF SIGNALLING SYSTEM R2 Q.400-Q.499 DIGITAL EXCHANGES Q.500-Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600-Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q. 7004
5、. 849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q. 85-Q .999 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NEMIORK BROADBAND ISDN Q.1000-Q.1099 Q.1100-Q.1199 Q. 1200-Q. 1999 Q.2000-Q.2999 General aspects Q.2000-Q.2099 Signalling ATM adaptation layer (SAAL) Q.2100
6、-Q.2199 Signalling network protocols Q.22004.2299 Common aspects of B-ISDN application protocols for access signalling and Q.2600-Q.2699 network signalling and interworking B-ISDN application protocols for the network sicinallinci Q.2700-Q.2899 - ., B-ISDNapplh$ad I _ OCOIS for accesssigna!iing I Fo
7、r further details, please refer to ITU-T List of Recommendations. STD.ITU-T RECMN Q.29bL=Z-ENGL 1997 m Li8b259L Oblll2Lb Obb ITU-T RECOMMENDATION 4.2961.2 DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - ADDITIONAL TRAFFIC PARAMETERS: SUPPORT OF ATM TRANSFER CAPABILITY IN THE BROADBAND BEARER CAPABILITY
8、 INFORMATION ELEMENT Summary This Recommendation is part of the DSS 2 family of Recommendations. It specifies the revision of the Broadband bearer capability information element coding from that which was specified in the first edition of Recommendation 4.2931 (1995) in order to enable the identific
9、ation of the ATM transfer capability as defined in the second edition of Recommendation 1.371 (1996). This Recommendation is designed, in addition, to be compatible with implementations conforming to the first edition of ITU-T Recommendation 1.371 (1993) and Recommendation Q.293 1 (1995). Source ITU
10、-T Recommendation 4.2961.2 was prepared by ITU-T Study Group 11 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 5th June 1997. I FOREWORD IT (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Tele
11、communication 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 a worldwide basis. The World Telecommunication Standardi
12、zation Conference (WTSC), which meets every four years, establishes the topics for study by the IT-T Study Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1.
13、 In some areas of information technology which fail within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE I In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a
14、recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The IT 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
15、 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 hadhad not received notice of intellectual property, protected by patents, which may be required to implement
16、 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 reproduced or utilized in any form or by any means, ele
17、ctronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. 11 Recommendation 4.2961.2 (06/97) - STD*ITU-T RECMN Q=29bL*2-ENGL 1997 Li8b2571 Ob41218 939 CONTENTS 2.1 Scope 2.2 References 2.3 Definitions 2.4 Abbreviations . 2.5 Description . 2.6 Coding req
18、uirements 2.6.1 Broadband bearer capability Annex A . Valid combinations of bearer class. broadband transfer capability and ATM traffic descriptor parameters . Appendix I . Guidelines on meaning of bearer class field I . 1 Bearer class . 1.1.1 BCOB-A 1.1.2 BCOB-C I . 1.3 BCOB-X 1.1.4 FR Appendix II
19、. Guidelines on use of BTC field II . 1 Guidelines on the use of BTC value of 7 . 11.2 Guidelines on the use of BTC value of 11 . 11.3 Guidelines on the use of BTC value of 19 . Recommendation 4.2961.2 (06/97) Page 1 1 1 2 2 2 2 6 11 11 11 11 11 11 11 12 12 12 . Ill Introduction This Recommendation
20、has been prepared to provide information on the use of the Broadband bearer capability that is consistent with the second edition of Recommendation 1.371. This Recommendation is issued in conjunction with an addendum to Recommendation 4.293 1. This Recommendation is designed in addition to be compat
21、ible with implementations conforming to the first edition of Recommendation 1.37 1 (1 993) and Recommendation Q.293 1 (1 995). Within this Recommendation, the changes from Recommendation 4.2931 (1995) are as follows: - Octet 5a of the Broadband bearer capability information element was restructured
22、to support the ATM Transfer Capabilities (ATC) specified in the second edition of Recommendation 1.371. This restructuring is backward compatible with the first edition of Recommendation 4.2931 (i.e. values of Octet 5a defined in the first edition of Recommendation 4.2931 still have the same meaning
23、). These values may be either those used on transmission and reception, those not generated by terminal equipment complying with this Recommendation, or those that are reserved. A new octet, Octet 7, of the Broadband bearer capability information element specified in Recommendation 4.2933, is shown.
24、 - iv Recommendation 4.2961.2 (06/97) Recommendation 4.2961.2 DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - ADDITIONAL TRAFFIC PARAMETERS SUPPORT OF ATM TRANSFER CAPABILITY IN THE BROADBAND BEARER CAPABILITY INFORMATION ELEMENT (Geneva, 1997) 2.1 Scope Recommendation 4.2961 covers the support of addi
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