1、National Standard of Canada CAN/CSA-ISO/IEC 11 51 8-3-97 International Standard ISO/IEC 11518-3:1996 (first edition, 1996-06-15) has been adopted without modification as CSA Standard CAN/CSA-ISO/IEC 11518-3-97, which has been approved as a National Standard of Canada by the Standards Council of Cana
2、da. ISSN 031 7-5669 February 1997 Information technology - High-Performance Parallel Interface - Part 3: Encapsulation of ISO/IEC 8802-2 (IEEE Std 802.2) Logical Link. Control Protocol Data Units (HIPPI-LE) Technologies de /information - interface parallde a haute performance - Parde 3: Encapsulatio
3、n de liSO/CEl 8802-2 (1EEE Std 802.21 unites cie donnees du protocoie de contr6le de iiaison logique (HIPPI-L E) Reference number ISO/IEC 11 51 8-3:1996(E LAssoelatlon canadienne de normallsation (CSA), sous les auspices de laquelle cette Norme nationale a btb prdparh, a recu ses lettres patentes en
4、 191 9 et son accreditation au sein du Systlme de normes nationales par le Conseil canadien des normes en 1973. Association daffiliation libre, sans but lucratif ni pouvoir de r4glementation, elle se consacre A Iilaboration de normes et h la certification. Les normes CSA reflhtent le consensus de pr
5、oducteurs et dusagers de partout au pays, au nombre desquels se trouvent des fabricants, des consommateurs, des dbtaillants et des representants de syndicats, de corps professionnels et dagences gouvernementales. Lutilisation des normes CSA est trbs repandue dans Iindustrie et le commerce, et leur a
6、doption A divers ordres de Ibgislation, tant municipal et provincial que fbddral, est chose courante, particulibrement dans les domaines de la santb, de la sbcuritd, du bltiment, de la construction et de Ienvironnement. Les Canadiens dun bout B Iautre du pays tbmoignent de leur appui au travail de n
7、ormalisation mend par la CSA en participant bh6volement aux travaux des comites de la CSA et en appuyant ses objectifs par Ieurs cotisations de membres de soutien. Les quelque 7000 volontaires faisant partie des comites et 18s 2000 membres de soutien constituent Iensemble des rnembres de la CSA parm
8、i lesquels ses administrateurs sont choisis. Les cotisations des membres de soutien representent une source importante de revenu pour les services de soutien B la normalisation volontaire. LAssociation offre des services de certification et de mise A Iessai qui appuient et complbtent ses activitbs d
9、ans le domaine de Idlaboration de normes. De manibre B assurer iintdgritd de son processus de certification, IAssociation procede de facon r6gulibre et continue h Iexamen et h Iinspection des produits portant la marque CSA. Outre son sihge social et ses laboratoires A Etobicoke, la CSA possbde des b
10、ureaux rdgionaux dans des centres vitaux partout au Canada, de mdme que des agences dinspection et dessai dans huit pays. Depuis 1919, IAssociation a parfait les connaissances techniques qui Iui permettent de remplir sa mission dentreprise, Si savoir la CSA est un organisme de services indbpendant d
11、ont la mission est doffrir me tribune libre et efficace pour la realisation dactivites facilitant Idchange de biens et de services par Iintermbdiaire de services de normalisation de certification et autres, pour repondre aux besoins de nos clients, tan1 B Ibchelle nationale quinternationale. The Can
12、adian Standards Associatlon (CSA), under whose auspices this National Standard has been produced, was chartered in 1919 and accredited by the Standards Council of Canada to the National Standards system in 1973, It is a not-for-profit, nonstatutory, voluntary membership association engaged in standa
13、rds development and certification activities. CSA standards reflect a national consensus of producers and users - including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are used widely by industry and commerce and often adopted
14、by municipal, provincial, and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. Individuals, companies, and associations across Canada indicate their support for CSAs standards development by volunteering their tim
15、e and skills to CSA Committee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a major
16、source of income for CSAs standards development activities. The Association offers certification and testing services in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and
17、inspects products that bear the CSA Mark. In addition to its head office and laboratory complex in Etobicoke, CSA has regional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 1919, the Association has developed the necessary expertise to me
18、et its corporate mission: CSA is an independent service organization whose mission is to provide an open and effective forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs. Pour
19、plus amples renseignements sur les services de la CSA, sadresser A * For further information on CSA services, write to 178, boulevard Rexdale 178 Rexdale Boulevard Etobicoke, Ontario, M9W 1 R3 Canada Association canadienne de normalisation 8 Canadian Standards Association Le Conseil canadlen des nor
20、mes est Iorganisme de coordination du Systlme de normes nationales, une federation dorganismes independants et autonomes qui travaillent au ddveloppement et B Iamdlioration de la normalisation volontaire dans Iintdrdt national. Les principaux buts du Conseil sont dencourager et de promouvoir la norm
21、alisation volontaire comme moyen dameliorer 18conomie nationale, damdiorer la santb, la sdcuritd et le bien- cest pourquoi il est recommandb aux utilisateurs de se procurer Ibdition la plus rdcente de la norme auprbs de Iorganisme qui Ia prdparde. Une Norme nationale du Canada est une norme, approuv
22、de par le Conseil canadien des normes, qui reflhte une entente raisonnable parmi les points de vue dun certain Lapprobation dune norme en tant que Norme nationale du Canada indique quelle est conforme aux mdthodes et critbres Btablis par le Conseil canadien des normes. II est recommand6 aux personne
23、s qui ont besoin de normes de se servir des Normes nationales du Canada lorsque la chose est possible. Ces normes font Iobjet dexamens The Standards Councll of Canada is the coordinating body of the National Standards system, a federation of independent, autonomous organizations working towards the
24、further development and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the national economy, benefiting the health, safety, and welfare of the public, assisting and pr
25、otecting the consumer, facilitating domestic and international trade, and furthering international cooperation in the field of standards. A National Standard of Canada is a standard which has been approved by the Standards Council of Canada and one which reflects a reasonable agreement among the vie
26、ws of a number of capable individuals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with reievant interests, as may be appropriate to the subject in hand. It normally is a slandard which is capable of maki
27、ng a significant and timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refer to the technical content of the standar
28、d; this remains the continuing responsibility of the accredited standards-development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic review; therefore, users are cautioned to obta
29、in the latest edition from the organization preparing the standard. La responsabilitb dapprouver les Normes nationales du Canada incombe au The responsibility for approving National Standards of Canada rests with the Conseil canadien des normes 8 Standards Council of Canada 45, rue OConnor, Bureau 1
30、200 8 45 OConnor Street, Suite 1200 Ottawa, Ontario, Kf P 6N7 Canada Bien que le but premier vise par cette norme soit - Provision for 48-bit source and destination addresses conforming to ISOAEC 8802-1 ; - Provision for eight forwarding classes to distinguish, for example, among ordinary data PDUs,
31、 PDUs for services that require bandwidth guarantees such as packet video, etc. Figure 1 shows the relationship of this part of ISO/IEC 1 151 8 (in the solid rectangle) with the other entities shown. I I I I I I Upper Level Protocols 1 I ISOAEC 8802-2 LLC I I I1 I Ii 1 I II HIPPI-FP Figure 1 - Proto
32、col hierarchy Encapsulation of ISO/lEC 8802-2 (IEEE Std 802.2) Logical link control protocol data units (HIPPI-LE) INTERNATIONAL STANDARD 0 lSO/IEC ISO/IEC 1 151 8-31 1996( E Information technology - High-Performance Parallel lnterface - Part 3: Encapsulation of ISO/IEC 8802-2 (IEEE Std 802.2) Logic
33、al Link Control Protocol Data Units (HIPPI-LE) 1 Scope This part of ISO/IEC 11518 provides a common method for encapsulating ISO/IEC 8802-2 Logical Link Control Protocol Data Units (PDU) on HIPPI. 2 Normative references The following standards contain provisions which, through reference in this text
34、, constitute provisions of this part of ISO/IEC 11518. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISOAEC 11518 are encouraged to investigate the possibility of applying the most recent editions
35、 of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. ISO/IEC 8802-1 :1994 Information technology - Tele corn rn un ica ti0 ns and in forma tion exchange bet we en systems - Local and metropolitan area networks - Specific requirement
36、s - Part I: Overview of Local Area Network Standards. ISOil EC 8802-2:1994 Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 2: Logical link control. ISOjlEC 11518-21996 Information technology -
37、High- Performance Parallel lnterface - Part 2: Framing Protocol (HIPPI-FP). 3 Definitions and conventions 3.1 Definitions For the purposes of this part of ISOAEC 1 151 8, the definitions in ISO/IEC 1151 8-1 and the following definitions 3.1.1 ISO/IEC 8802-2 LLC PDU: A PDU formatted according to ISOA
38、EC 8802-2 Logical Link Control. apply. 3.1.2 Address Resolution: The general process of discovering the Iow-level (or switch) address associated with a known higher level address for a particular remote entity. This involves sending a query message, containing the known higher level address, to a we
39、ll-known switch address. The requester receives a reply containing the associated switch address. 3.1 -3 Address Resolution Protocol (ARP): the particular protocol for address resolution used by the Internet. 3.1.4 HIPPI-LE PDU: A PDU that includes a HIPPI-LE header and an ISO/IEC 8802-2 LLC PDU and
40、 is formatted according to clause 6. 3.1.5 optional: A term referring to features that are not required by this part of ISO/IEC 11518. However, if any optional feature defined by this part of ISOAEC 11 518 is implemented, it shall be implemented according to this part of ISO/IEC 11518. 3.1.6 protoco
41、l data unit (PDU): A formatted data set that is a logical unit of interchange between entities. 3.1.7 service data unit (SDU): A formatted data set that includes a PDU and optional information for the convenience of an implementer. 3.1.8 station management (SMT): The supervisory entity that monitors
42、 and controls HIPPI. 3.1.9 Switch Address: A value in the switch hardware domain which selects the route or end point of a HIPPI connection. The range and format depend on switch hardware. HIPPI-SC specifies two formats: Logical Address (12 bits) and Source Route (24 bits). 3.2 Editorial conventions
43、 In this part of ISOAEC 11518, certain terms that are proper names of service primitives, or similar terms are printed in upper case to avoid possible confusion with other uses of the same words (e.g., TRANSFER). Any lower case uses of these words have the normal technical English meaning. The first
44、 letter of each word of service parameters, service primitive types, and similar terms is capitalized (e.g., Destination-Address, Status, Request). Any lower case uses of these words have the normal technical English meaning . 1 Encapsulation of IS0 8802-2 (IEEE Std 802.2) Logical Link Control Proto
45、col Data Units (WIPPI-LE) ISO/IEC 11518-3:1996(E) 0 ISO/IEC 4 HIPPI-LE services to ISOREC 8802-2 LLC This clause specifies the services provided by HIPPI-LE. The intent is to allow ISO/IEC 8802-2 LLC to operate correctly with HIPPI-LE. How many of the services described in this clause are chosen for
46、 a given implementation is up to the implementer; however, the set of HIPPI-LE services supplied shall be sufficient to satisfy the higher level protocoI(s) being used. Service parameters are also optional and additional parameters not shown may be used as necessary. The services as defined in this
47、part of ISOilEC 11518 do not imply any particular implementation, or any interface. In this part of ISO/IEC 11518 the ISO/IEC 8802-2 LLC and station management protocol (SMT) are service users, and the HIPPI-LE is the service provider to the ISO/IEC 8802-2 LLC and SMT. The primitives to ISO/IEC 8802
48、-2 LLC are prefixed with LE- and the SMT primitives are prefixed with LESM-. The HIPPI-LE is also the service user of HIPPI-FP services, which are prefixed with FF-. Figure 2 shows the relationship of the services provided by and used by HIPPI-LE. I I I I I I 1 1 I I I I I I I I I I Station I Manage
49、ment I (SMT) I I I I I I I I I 1 I I I 2 I I I I I I I I I I I I I I I I I Upper Level I I Protocols I I ISO/IEC 8802-2 I 1 LLC I I- - - - rc - - -I (LE- .) 1 LESM-.q* HIPPI-LE I I f ! I I I HIPPI-FP I I LowerLevel i 1 Protocols I I I 4.1 Service primitives types HlPPl service primitives are of four types: - Requestprimitives are issued by a service user to initiate a service from the service provider; - Confirm primitives are issued by the service provider to acknowledge a Request; - Indicate primifives are issued by the service pr
