1、Reference numberISO/IEC TR 9577:1999(E)ISO/IEC 1999Information technology Protocolidentification in the network layerTechnologies de linformation Identification des protocoles dans lacouche rseauNational Standard of CanadaCAN/CSA-ISO/IEC TR 9577:04(ISO/IEC TR 9577:1999)Technical Report ISO/IEC TR 95
2、77:1999 (fourth edition, 1999-12-15) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC TR 9577:04, which has been approved as a NationalStandard of Canada by the Standards Council of Canada.ISBN 1-55397-253-8 January 2004The Canadian Standards Association (CSA), The Standard
3、s Council of Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a federation of independent, autonomousthe Standards Council of Canada to the National organizations working towards th
4、e furtherStandards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national interest.engaged in standards development and certification The principal objects of the Council are to foster activities.
5、 and promote voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufacturers, health, safety, and welfare of the public, assisting consumers, retailers, unions and professional and protect
6、ing the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the field of standards.and often adopted by municipal, provincial, and A National Standard of C
7、anada is a standard whichfederal governments in their regulations, particularly in has been approved by the Standards Council ofthe fields of health, safety, building and construction, Canada and one which reflects a reasonableand the environment. agreement among the views of a number of capableIndi
8、viduals, companies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance ofdevelopment by volunteering their time and skills to representation of producers, users, consumers, andCSA Committ
9、ee work and supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The more to the subject in hand. It normally is a standardthan 7000 committee volunteers and the 2000 which is capable of making a significant and timelysustaining
10、memberships together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National Standard ofSustaining memberships represent a major source of Canada indicates that a standard conforms to theincome for CSAs standards deve
11、lopment activities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in support of and as an extension to its technical content of the standard; this remains thestandards development activit
12、ies. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Those who have a need to apply standards arethat bear the CSA Mark. encouraged to use Nation
13、al Standards of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to periodic review; therefore, users are cautioned centres across Canada and inspection and testing to obtain the latest
14、edition from the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsibility for approving National Standards meet its corporate mission: CSA is an independent of Canada rests with theservice organization who
15、se mission is to provide an Standards Council of Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the use of Ottawa, Ontario, K1P 6N7standards, certification and related services to meet Canadanational and international
16、 needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application of this Standard is stated in its Scope, it is importantto note that it remains the responsibility of the use
17、rs to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC TR 9577:04 Information technology Protocol identification in the network layerJanuary 2004 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC TR 9577:04Information technol
18、ogy Protocol identification in thenetwork layerCSA PrefaceStandards development within the Information Technology sector is harmonized with internationalstandards development. Through the CSA Technical Committee on Information Technology (TCIT),Canadians serve as the Canadian Advisory Committee (CAC
19、) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participat
20、es in the International Telegraph andTelephone Consultative Committee (ITU-T).This Standard supersedes CAN/CSA-ISO/IEC TR 9577-95 (adoption of ISO/IEC TR 9577:1993). This Technical Report was reviewed by the CSA TCIT under the jurisdiction of the Strategic SteeringCommittee on Information Technology
21、 and deemed acceptable for use in Canada. (A committeemembership list is available on request from the CSA Project Manager.) From time to time, ISO/IEC maypublish addenda, corrigenda, etc. The CSA TCIT will review these documents for approval andpublication. For a listing, refer to the CSA Informati
22、on Products catalogue or CSA Info Update or contacta CSA Sales representative. This Technical Report has been formally approved, without modification, bythe Technical Committee and has been approved as a National Standard of Canada by the StandardsCouncil of Canada.January 2004 Canadian Standards As
23、sociation 2004All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission ofthe publisher. ISO/IEC material is reprinted with permission. Where the words “this Technical Report” appear in the text,they should be interpreted as “this National
24、 Standard of Canada”. Inquiries regarding this National Standard of Canada should be addressed to Canadian Standards Association 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044www.csa.caReference numberISO/IEC TR 9577:1999(E)ISO/IEC 1999TECHNICALREPORTI
25、SO/IECTR9577Fourth edition1999-12-15Information technology Protocolidentification in the network layerTechnologies de linformation Identification des protocoles dans lacouche rseauISO/IEC TR 9577:1999(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing p
26、olicy, this file may be printed or viewed but shall notbe edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading thisfile, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central
27、 Secretariat accepts no liability in thisarea.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 parameterswere optimized for printing. Every care has been taken to e
28、nsure that the file is suitable for use by ISO member bodies. In the unlikely eventthat a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 1999All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or u
29、tilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member bodyin the country of the requester.ISO copyright officeCase postale 56 Gb7 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax
30、 + 41 22 734 10 79E-mail copyrightiso.chWeb www.iso.chii ISO/IEC 1999 All rights reservedCONTENTSPage1 Scope 12 References 12.1 Identical Recommendations | International Standards. 22.2 Paired Recommendations | International Standards equivalent in technical content. 22.3 Additional references 23 Ab
31、breviations . 44 Protocol identifiers . 45 Initial protocol identifier. 55.1 General 55.2 Assignment structure for header-oriented protocols .65.3 Values assigned to the IPI for header-oriented protocols 65.4 Assignment structure for trailer-oriented protocols. 85.5 Values assigned to the IPI for tr
32、ailer-oriented protocols. 86 Subsequent protocol identifier 96.1 General 96.2 Assignment structure for header-oriented protocols .106.3 Values assigned to the SPI for header-oriented protocols. 106.4 Assignment structure for trailer-oriented protocols. 126.5 Values assigned to the SPI for trailer-or
33、iented protocols 12Annex A The location and use of protocol identifiers in X.25 Packet Layer Protocol 13Annex B Guidelines on the processing of protocol identifiers 15B.1 Originating systems. 15B.2 Destination systems. 15Annex C Identification of Internet protocols . 17Annex D Identification of prot
34、ocols that are discriminated according to the IEEE-defined SNAP convention 18Annex E Identification of protocols specified by the Frame Relay Forum 19iiiISO/IEC TR 9577 : 1999 (E) ISO/IEC 1999 All rights reservedISO/IEC TR 9577:1999(E)iv ISO/IEC 1999 All rights reservedForewordISO (the International
35、 Organization for Standardization) and IEC (the International Electrotechnical Commission)form the specialized system for worldwide standardization. National bodies that are members of ISO or IECparticipate in the development of International Standards through technical committees established by the
36、respective organization to deal with particular fields of technical activity. ISO and IEC technical committeescollaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, inliaison with ISO and IEC, also take part in the work.International Standards
37、 are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.Draft International Standards adopted by the joint technical committee are circulated to national bodies f
38、or voting.Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.In exceptional circumstances, when a technical committee has collected data of a different kind from that which isnormally published as an International Standard (“state of the
39、 art“, for example), it may decide by a simple majorityvote of its participating members to publish a Technical Report. A Technical Report is entirely informative in natureand does not have to be reviewed until the data it provides are considered to be no longer valid or useful.Attention is drawn to
40、 the possibility that some of the elements of this Technical Report may be the subject of patentrights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.ISO/IEC TR 9577 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,Subcommittee
41、 SC 6, Telecommunications and information exchange between systems, in collaboration with ITU-T.The identical text is published as ITU-T Rec. X.263.This fourth edition cancels and replaces the third edition (ISO/IEC TR 9577:1996), which has been technicallyrevised.vIntroductionIdentifying protocols
42、by information in a uniform part of the protocol control information fulfils two requirements:a) It enables an entity to verify that the protocol received is of the type and kind expected; andb) It permits an entity to discriminate among a number of different protocols (both OSI and non-OSI) thatmig
43、ht co-exist in a common environment.This Recommendation | Technical Report contains a description of the means used to identify protocols and where thatinformation is located in a protocol, together with a record of those values of protocol identifiers which have been usedby ITU-T and ISO/IEC, and b
44、y other authorities. This Recommendation | Technical Report does not attempt to provideany general architectural principles for the functions of protocol identification, nor does it attempt to provide judgementsas to whether a protocol might have more than one value of protocol identifier.By referen
45、ce to this Recommendation | Technical Report, future protocols can be developed to include a protocolidentifier and the values of such protocol identifiers can be chosen on a knowledgeable basis.ISO/IEC TR 9577 : 1999 (E) ISO/IEC 1999 All rights reservedISO/IEC TR 9577 : 1999 (E)ITU-T Rec. X.263 (19
46、98 E) 1TECHNICAL REPORTISO/IEC TR 9577 : 1999 (E)ITU-T Rec. X.263 (1998 E)ITU-T RECOMMENDATIONINFORMATION TECHNOLOGY PROTOCOL IDENTIFICATIONIN THE NETWORK LAYER1 ScopeThis Recommendation | Technical Report provides:a) the description of a means to permit a protocol to be identified;b) a record of th
47、e structure and allowable ranges of protocol identifier(s) which can be assigned by ITU-T,ISO/IEC and other authorities;c) a record of the values of protocol identifiers used by OSI Network layer protocols and non-OSI protocolsoccupying a similar position: in particular, protocols with protocol cont
48、rol information commencing inoctet 1 of the protocol data unit (header-oriented protocols), and protocols with protocol controlinformation commencing in the final octet of the protocol data unit (trailer-oriented protocols), arecovered; andd) a record of the values that are in use as protocol contro
49、l information in non-Network layer protocolswhere they impact on Network layer protocol identification.The application of this Recommendation | Technical Report is:a) in the identification of internationally standardized Network layer protocols operating directly above theData Link service;b) in the identification of protocols used in conjunction with internationally standardized Network layerprotocols that operate directly above the Data Link service; andc) to distinguish between Internationally standardized Network layer protocol
