BS ISO/IEC 20922:2016 BSl Standards Publication Information technology - Message Queuing Telemetry Transport (MQTT) v3.1.1 bsi. BS ISO/IEC 20922:2016 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO/IEC 20922:2016. The UK participation in its preparation was entrusted to Technical Committee ICT/-/1, Information systems co-ordination. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 91321 1 ICS35.100.70 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2016. Amendments/corrigenda issued since publication Date Text affected BS ISO/IEC 20922:2016 INTERNATIONAL ISO/IEC STANDARD 20922 First edition 2016-06-15 Information technology Message Queuing Telemetry Transport (MQTT) v3.1.1 Technologies de l'information- Transportpartelemesuredes messages en file d'attente (MQTT) v3.1.1 Reference number ISO/IEC 20922:2016(E) IEC @ISO/IEC2016 BS ISO/IEC 20922:2016 ISO/IEC 20922:2016(E) COPYRIGHTPROTECTEDDOCUMENT ? ISO/IEC2016 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or 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 ii ISO/IEC 2016-Allrightsreserved BS ISO/IEC 20922:2016 ISO/IEC20922:2016(E) Foreword Commission) form the specialized system for worldwide standardization. National bodies that are members of established by the respective organization to deal with particular fields of technical activity. IsO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives), Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the IsO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constituteanendorsement. For an explanation on the meaning of isO specific terms and expressions related to conformity assessment, aswellas informationaboutISO's adherencetotheWTOprinciples intheTechnical BarrierstoTrade(TBT): see the following URL: Foreword Supplementary information ISO/IEC 20922:2016 was prepared by the OASIS Message Queuing Telemetry Transport (MQTT) Technical Committee and was adopted, under the PAS procedure, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by the national bodies of ISO and IEC. @ ISO/IEc 2016 - All rights reserved ili BS ISO/IEC 20922:2016 ISO/IEC20922:2016(E) Foreword Commission) form the specialized system for worldwide standardization. National bodies that are members of established b