1、 CEN EN*ISP*LObO -2 94 3404589 0114013 143 I BRITISH STANDARD Implementation of EN ISP 10608-2 : 1994 Information technology - International Standardized Profile Thnnn - Connection-mode Bansport Service over Connectionless-mode Network Service - Part 2. TA51 profile including subnetwork-dependent re
2、quirements for CSWCD Local area networks CLANS) BS EN ISP 10608-2 : 1995 rsomc rsp 10608-2 : 1992 UDC 681.3: 621.39 CEN EN*ISP*LObOA -2 94 3404589 OLL4OL4 OBT W BS EN ISP 10608-2 : 1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technic
3、al Committee IST/6, Data communications, upon which the following bodies were represented British Computer Sociew British Telecommunications plc CCTA (the Govenunent Centre for Information Systems) Digital Equipment Co. Ltd. IBM United Kingdom Ltd. Institution of Electrical Engineers Intemational Co
4、mputers Limited hgica UK Ltd. Nine Wes Computers Systems Ltd. Rank Xerox (UK) Ltd. This British Standard, having been prepared under the direction of the Information Systems Technology Assembly, was published under the authority of the Standards Board and comes into effect on 15 November 1995 Amendm
5、ents issued since publication O BSI 1995 The following BSI references relate to the work on this standard: Committee reference ISTI6 Draft for comment 90/668001 DC ISBN O 680 24882 8 Amd. No. 1 Date 1 Text affected CEN EN*ISP*LOb08 -2 94 I 3404589 OLL4OL5 TLb BS EN ISP 10608-2 : 1995 National forewo
6、rd This British Standard is the English language version of EN BP 10608-2 : 1994 and implements it as the UK national standard. This British Standard is pubiished under the direction of the Infodon Systems Technology Assembly whose Technical Comittee ISTIG has the responsibilty to: - aid enquirers t
7、o understand the text; - present to the responsible European committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; - monitor related intedonal and European developments and promulgate them in the UK. NOTE. International and European Standards, as well as
8、 overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London W4 4AL. Compiiance with a British Standard does not of itself confer immunity from legal obligations. i CEN EN*ISP*L0608 -2 74 3404589 OLL4016 952 m EN ISP 10ctional Standardized Frofile TAnnnn - Connectio
9、n-mode %nsport Seruce over Cmnect-s-mode Network Seruces - Part 2: TA51 profue including subnetwork-dependent requirements for CSWCD Local Area Networks (LANs) O/IEC ISP 106082 : 1992) for adoption by the Unique Acceptance Procedure (UM), in accordance with clause 4.6 of the CENKENELEC Internal Regu
10、lations, Part 2 of Aprd 1990. The result of the Unique Acceptance Procedure was positive. For the time being this standard exists in the English version only. This European Standard and EN ISP 106081 supersede EN 41102 : 1990 which shall be withdrawn. This document is the second part of a multi-Func
11、tional Standard identified in ISO/IEC TR 10000-2. In M-IT42 this standard is idened under T/A51 Local Area Networks - CSMA/CD (COTS + CLNS). M-IT-02 CEN/CENELEC/ETSI Memorandum on taxonomy of pronles and directory of functional standards This European Standard shall be given the status of a Nationai
12、 Standard, either by publication of an identical text or by endorsement, at the latest by June 1995, and conflicting national standards shall be withdrawn at the latest by June 1995. According to the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standa
13、rd: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. CEN EN*ISP*LObO8 -2 94 I 3404589 OLL4018 725 I NT ER NAT I O NA L STANDARDIZED PROFILE ISO/IEC ISP First edition 1992-12-1
14、5 Information technology - International Standardized Profile TAnnnn - Connection-mode Transport Service over Connectionless-mode Network Service - Part 2: TA51 profile including subnetwork-dependent requirements for CSMNCD Local Area Networks (LANs) Technologies de linformation - Profil normalis in
15、ternational TAnnnn - Service de transpor? en mode connexion sur le service de rseau en mode sans connexion - Partie 2: Profil TA5 7 y compris spcifications dpendantes du sous-rseau pour les rseaux locaux CSMNCD Reference number ISO/iEC iSP 106082:1992E) CEN EN*ISP*L0608 -21 94 3404589 OLl140L9 bbl m
16、 ISp180821992(E) CEN EN*ISP*LObO -2 94 I 3404587 Oll4020 383 ISO/IEC ISP 10608-2:1992 (E) Foreword IS0 (the International Organization for Standardization) and IEC (the Inter- national Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are me
17、mbers of IS0 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. IS0 and IEC technical commit- tees collaborate in fields of mutual interest. Other international
18、 organiza- tions, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work. In the field of information technoiogy, IS0 and IEC have established a joint technical committee, ISO/IEC JTC 1, In addition to developing International Standards, ISO/IEC JTC 1 has created
19、a Special Group on Functional Standardization for the elaboration of International Standardized Profiles. An International Standardized Profile is an internationally agreed, harmonized document which identifies a standard or group of standards, together with options and parameters, necessary to acco
20、mplish a function or set of functions. Draft International Standardized Profiles are circulated to national bodies for voting. Publication as an International Standardized Profile requires ap- proval by at least 75 TO of the national bodies casting a vote. International Standardized Profile iSO/IEC
21、ISP 10608-2 was prepared with the collaboration of - OS1 Asia-Oceania Workshop (AOW); - European Workshop for Open Systems (EWOS); - OS1 Implementors Workshop (OW. ISO/IEC ISP 10608 consists of the following pans, under the general title Information technology - International Standardized Profile TA
22、nnnn - Connection-mode Transport Service over Connectionless-mode Network Service: - Part 7: General overview and subnetwork-independent require- ments - Part 2: TA5 7 profile including subnetworkdependent requirements for CSMNCD Local Area Networks ILANS) - Part 4: Definition of profile TA53 for op
23、eration over a Token Ring LAN subnetwork - Pan 5: TA 7 7 7 ?/TA7 121 profiles including subnetwork-dependent requirements for X. 25 packet-switched data networks using vrtual calls - Part 13: MAC sublayer and physical layer dependent requirements for Token Ring local area network Annexes A and B for
24、m an integral part of this part of ISO/IEC ISP 10608 Annex C is for information only. iii CEN EN*ISP*LOb08 -2 94 W 3404589 OLL402L 2LT H ISOAEC ISP 10608-2:1992 (E) Introduction This part of ISOIIEC ISP 10608 (International Standardized Profile) is defined within the context of Func- tional Standard
25、ization, in accordance with the principles specified by ISOTTR 10000-1 :1990. The context of Functional Standardization is one part of the overall field of Information Technology (IT) standardization ac- tivities, covering base standards, profiles, and registration mechanisms. A profile defines a co
26、mbination of base standards that collectively perform a specific well-defined IT function. Profiles standardize the use of options and other variations in the base standards, and provide a basis for the development of uniform, in- ternationally recognized system tests. One of the most important role
27、s for an ISP is to serve as the basis for the development (by organizations other than IS0 and IEC) of internationally recognized tests and test centers. ISPs are produced not simply to legitimize a particular choice of base standards and options, but to promote real system interoperability. The dev
28、elopment and widespread acceptance of tests based on this and other ISPs is crucial to the suc- cessful realization of this goal. ISOIIEC ISP 10608 consists of several parts, of which this is Part 2. ISOIIEC 10608-1 specifies subnetwork- type independent requirements for Group TA profiles. ISOIIEC 1
29、0608-2 specifies subnetwork-type depen- dent requirements for Profile TA51. ISOIIEC ISP 10608-3 specifies subnetwork-type dependent require- ments for Profile TA52. ISOIIEC ISP 10608-4 specifies subnetwork-type dependent requirements for Profile TA53. ISOIIEC ISP 10608-5 specifies subnetwork-type de
30、pendent requirements for Profiles TA1 11 1 and TA1121. iv CEN EN*ISP*10608 -2 94 Is 3404589 0114022 156 INTERNATIONAL STANDARDIZED PROFILE ISOAEC ISP 10608-2:1992 (E) Informa t i on tech no I og y - In terna t io na I Standardized Prof i le TAnn n n - Connection-mode Transport Service over Connectio
31、nless-mode Net- work Service - Part 2: TA51 profile including subnetwork-type depen- dent requirements for CSMA 1 CD Local Area Networks (LANs) 1 Scope 1.1 General This part of ISO/IEC ISP 10608 specifies subnetworktype dependent requirements for end system opera tion when the end system is attached
32、 to a carrier-sense multiple access with collision detection (CSMNCD) local area network. The Directory of Profiles and ISPs in IS0 TR1 O000 identifies this TA profile configuration as TA51. The complete set of requirements for TA51 consists of the requirements specified in ISOAEC ISP 10608-1 and IS
33、O/IEC ISP 10608-2. 1.2 Position of profile within the taxonomy ISO/IEC ISP10608 covers the taxonomy elements identified as YA” in the Directory of Profiles and ISPs contained in ISOAEC TR 10000-2. These elements constitute Transport profiles, group A: Connection- mode Transport Service over Connecti
34、onless-mode Network Service. 1.3 Scenario This clause specifies requirements for the profile identified in ISOAEC TR 10000 as TA51, Connection- mode Transport Service provided over the Connectionless-mode Network Service on a CSMNCD LAN. Figure 1 illustrates the standards which comprise the TA51 pro
35、file. Transport Layer IS0 8073 IS0 8073/Add.2 Network Layer IS0 8473 IS0 9542 I Data-link Layer I IS0 8802-2 IS0 8802-3 I IS0 8802-3 I I Physical Layer Figure 1 - Standards comprising the TA51 Profile Figure 2 illustrates the configuration of systems to which TA51 is applicable. * Other network equi
36、pment - none - OS1 relays - other equipment Figure 2 - Scenario of applicability of the TA51 Profile 1 CEN EN*ISP*LOb08 -2 74 U 3404587 OLL4023 O92 ISO/IEC ISP 1060 IS0 8802-2 recognizes two distinct sublayerc within the data-link layer; the Logical Link Control sublayer (LLC) and the Medium Access
37、Control (MAC) sublayer. No IPRL for the MAC sublayer is included in ISOAEC ISP 10608-2. All items not mentioned specifically below are as specified in the standards IS0 8802-2 and ISO/IEC 8802-3. 5.2.2.1 Logical Link Control The following implementation constraints on LLC apply to operation in the c
38、onfigurations covered by this part of ISOAEC ISP 10608-2. The detailed LLC conformance requirements for this profile are contained in clause 8.3. 3 CEN EN*ISP*LObOB -2 94 3404589 OLL4025 765 ISOIIEC ISP i06oa2:igs2 (E) 5.2.2.1.1 Link Service Access Point (LSAP) The LSAP value O1 11 11 11, in which t
39、he leftmost bit is the least significant bit, shall be used in all cases. This value would be represented according to the canvention established in IS0 8802-2 as hexadecimal FE. 5.2.2.1.2 Type and Class Only Type 1 operation, providing an unacknowledged connectionless service, is specified. 5.2.3 M
40、edium Access Control (MAC) requirements 5.2.3.1 Add ressi n g The MAC address length shall be 48 bits. 5.2.3.2 Frame size The minimum frame size shall be 512 bits (64 octets). The maximum frame size shall be 1518 octets. 5.2.4 Physical Layer requirements The Physical Layer is specified in IS0 8802-3
41、. 5.2.4.1 Physical signalling Only the physical layers known in IS0 8802-3 as 10BASE5 and 1 OBASE2 are included in this profile. This profile makes no additional requirements on the physical layer, so no IPRL has been included for the phys- ical layer. 5.2.4.2 Cable technology The planning, design,
42、installation, and testing of cable systems suitable for CSMN CD technology are be- yond the scope of this profile. Note that a system that only operates over lOBASE5 cannot directly interwork with a system that only op- erates over 10BASE2, however, they may interwork by means of a suitable repeater
43、. 4 Annex A (normative) International Standardized Profile Implementation Conformance Statement Requirements List (IPRL) A.1 ES-IS protocol IPRL A.1 .I General The IPRL in this annex specifies the additional requirements for IS0 9542. These requirements are gener- ated by applying the following modi
44、fications to the PICS proforma given in annex A of IS0 9542. This IPRL specifies an implementation of the ES-IS protocol for end systems. Intermediate system operation is not specif ied. A conforming implementation shall satisfy the mandatory conformance requirements of the base standard referenced
45、in this part of lhe profile. A.1.2 Protocol functions The protocol functions Redirection information and Configuration Information (Ci) are mandatory for this prof ile. A.1.3 Supported parameters The following parameters for both send and receive are outside the scope of the profile defined in ISO/I
46、EC ISP 10608-2. Security Priority QoS maintenance Address mask SNPA mask 5 CEN EN*ISP*10608 -2 74 E 3404589 0114027 738 M ISOIIEC ISP 1060 Mandatory. O ; Optional. O.cri X ; Excluded. ; Optional, but support of at least one of the group of options labeled by the same numeral is required. b) IPRL sta
47、tus notation The Status column of Profile features entries use a one character or a two character notation. A one char- acter notation indicates the static requirements only. If a two character notation is used, the first character is the static requirement and the second character is the dynamic re
48、quirement. 1) static m O i ; Mandatory (implementation is mandatory). ; Optional (implementation is optional). ; Out of scope (not relevant to this profile). 2) dynamic m ; Mandatory (use is mandatory). 6 CEN EN*ISP*LObOB -2 94 3404589 OLL4028 674 E ISOIIEC ISP 10608-2:1992 (E) LR1 LR2 LR3 6.3 LLC P
49、rotocol IPRL NOTE - This IPRL indudes an interim version of the PICS proforma When a standardzed PICS proforma is published, this IPRL Will refer to it. B.3.1 Supported PDUs - Transmission Ui command 5.4.1.1 .i M XID command 5.4.1.1.2 M XID response 5.4.1.2.1 LT2:M Base Standard Features LR4 LR5 index I Supported PDUs transmitted I Reference I Status TEST command 5.4.1.1.3 M TEST response 5.4.1.2.2 LT4:M LT1 I U1 command 15.4.1.1.1 I M LT2 I XID command 15.4.1.1.2 I 0 I LT3 I XID response 15.4.1.2.1 I M LT4 I TEST command 15.4.1.1.3 I O LT5 I TEST response 15.4.1.2.2
