ISO/IEC INTERNATIONAL STANDARD 14476-2 First edition 2003-12-15 Information technology Enhanced communications transport protocol: Specification of QoS management for simplex multicast transport Technologies de I'information Protocole de transport de communications améliore. Spécification de gestion QoS pour le transport simplex en multidiffusion Reference number ISO/IEC 14476-2:2003(E) ISO TEC @ISO/IEC2003 y IHS under ted without license from IHS Not for Resale ISO/IEC 14476-2:2003(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ?ISO/IEC2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO/EC2003-Allrightsreserved ted without license from IHS Not for Resale ISO/IEC 14476-2:2003(E) CONTENTS Page 1 Scope.... 1 2 Normative references .... 1 3 Definitions.... 2 3.1 TermsdefinedinITU-TRec.X.605/ISO/IEC13252 2 3.2 Terms defined inITU-TRec.X.606IISO/IEC14476-1 2 3.3 Terms defined in this Recommendation I International Standard... 2 4 2 4.1 Packet types... 2 4.2 Miscellaneous.... 3 Conventions.... 3 6 Overview. 3 7 Components for QoS management. 6 7.1 Connection information element. 6 7.2 Qos parameters... 7 7.3 7 7.4 Acknowledgement element.. 9 7.5 Packets used for QoS management ... 10 8 Procedures for QoS management .... 10 8.1 QoS negotiation..... 10 8.1.1 Negotiation procedures 11 8.1.2 QoS negotiation in the tree hierarchy. 12 8.1.3 MSS negotiation... 12 8.1.4 Resource reservation. 12 8.2 QoS monitoring.. 13 8.2.1 Generation of ACK 13 8.2.2 Measurement of QoS parameter values.... 13 8.2.3 Mapping to a parameter status value... 14 8.2.4 Reporting toward the sender .. 14 8.3 QoS maintenance . 15 8.3.1 Adjustment of data transmission rate 16 8.3.2 Connection pause and resume.. 16 8.3.3 Troublemaker ejection .... 17 8.3.4 Connection termination. 17 9 Timers and variables 17 9.1 Timers 17 9.2 Operation variables 17 Annex A - Interworking between ECTP and RSVP for resource reservation 19 A.1 ECTP QoS parameters . 19 A.2 Overview of RSVP. 19 A.2.1 RSVP SENDER_TSPEC 19 A.2.2 RSVPADSPEC 20 A.2.3 RSVPFLOWSPEC 20 A.2.4 RSVP API..... 20 A.3 An example of the parameter mapping between RSVP and ECTP 21 A.4 A scenario of interworking between ECTP and RSVP 21 Annex B - Application Programming Interfaces.. 24 B.1 24 B.1.1 API functions ... 24 B.1.2 UseofECTPAPIfunctions 24 B.2 ECTP API fun.ction... 25 B.2.1 msocketO 25 B.2.2 mbindO. 26 B.2.3 macceptO. 27 B.2.4 mconnectO 28 CopyrightInternational Oganizaonfrstandardization All rights reserved ili Not for Resale ISO/IEC 14476-2:2003(E) Page B.2.5 msendO 28 B.2.6 mrecvO 29 B.2.7 mcloseO. 30 B.2.8 mgetsockoptOandmsetsockoptO 30 B.3 An example of the msocket.h header file 32 Bibliography. 36 Copyright International Organization for Standardization @ISO/IEC2003-Allrightsreserved vided by IHS under license with IS itted without license from IHS Not for Resale ISO/IEC 14476-2:2003(E) Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical C