ISO_IEC_TR_26927_2011.pdf

Reference numberISO/IEC TR 26927:2011(E)ISO/IEC 2011 TECHNICAL REPORT ISO/IECTR26927Second edition2011-09-01 Information technology Telecommunications and information exchange between systems Corporate telecommunication networks Mobility for enterprise communications Technologies de linformation Tlinformatique Rseaux de tlcommunication dentreprise Mobilit pour les communications dentreprise ISO/IEC TR 26927:2011(E)COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2011 All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either ISO at the address below or ISOs 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 copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2011 All rights reserved ISO/IEC TR 26927:2011(E)ISO/IEC 2011 All rights reserved iii Contents Page Foreword.vIntroduction.vi1Scope.12Normative references.13Terms and definitions.14Abbreviations.55Background.76Mobility types and terms.96.1Mobility types.96.1.1Terminal mobility.96.1.2User mobility.106.1.3Session mobility.106.1.4Service mobility.106.2Mobility across different network infrastructures.106.2.1Mobility across access network technologies.106.2.2Mobility across administrative network domains.116.3Mobility modes.116.3.1Nomadic mode.116.3.2Portable mode.116.3.3Mobile mode.117Basic functionalities to enable mobility.127.1Mobility management.137.1.1Handover of media connections and sessions.137.1.2Mobility management support for IP-networks.157.2Identity and access management.167.2.1User and terminal identification.167.2.2Authentication.177.2.3Access management.187.3Device/configuration management and policy enforcement.187.4Location management.197.5Reachability management.197.6Virtual Desktop Infrastructure.198Requirements and standardization gaps.208.1Nomadic deployments.228.1.1Scenario:Hot-desking within the enterprise network(NGCN).238.1.2Scenario:Remote access from a public network.238.2Portable deployments.248.2.1Scenario:Changing location of a terminal while keeping communication sessions alive.248.2.2Scenario:Changing terminal while keeping communication sessions alive.258.3Mobile deployments.258.3.1Scenario:Continuous connection across different public networks with the same access technology.258.3.2Scenario:Continuous connection across an enterprise and a public mobile network with different access technologies.279Summary of standardization gaps.279.1General issues.289.2Mobility management.28ISO/IEC TR 26927:2011(E)iv ISO/IEC 2011 All rights reserved 9.3Identity and access management.289.4Device/configuration management.289.5Reachability management and location management.28Bibliography.29 ISO/IEC TR 26927:2011(E)ISO/IEC 2011 All rights reserved v Foreword ISO(the International Organization for Standardization)and IEC(the International Electrotechnical Commission)form the specialized system for worldwide standardization.National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees 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.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives,Part 2.The main task of the joint technical committee is to prepare International Standards.Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.Publication as an International Standard requires approval by at least 75%of the national bodies casting a vote.In exceptional circumstances,when the joint technical committee has collected data of a different kind from that which is normally published as an International Standard(“state of the art”,for example),it may decide to publish a Technical Report.A Technical Report is entirely informative in nature and shall be subject to review every five years in the same manner as an International Standard.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.ISO/IEC TR 26927 was prepared by Ecma International(as ECMA TR/92)and was adopted,under a special“fast-track procedure”,by Joint Technical Committee ISO/IEC JTC 1,Information technology,in parallel with its approval by national bodies of ISO and IEC.This second edition cancels and replaces the first edition(ISO/IEC TR 26927