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1、INTERNATIONAL STANDARDIZED PROFILE ISO/IEC ISP 10609-I 4 First edition 1994-l 2-15 Information technology - International Standardized Profiles TB, TC, TD and TE - Connection-mode Transport Service over connection-mode Network Service - Part 14: Definition of profile TC53, provision of the OSI conne
2、ction-mode Transport Service using the 0% connection-mode Network Service in an End System attached to a Token Ring LAN Technologies de /information - Profils normalis - European Workshop for Open Systems (EWOS); - Open Systems Environment Implementors Workshop (OIW). ISO/IEC ISP 10609 consists of s
3、everal parts, under the general title Information technology - International Standardized Profiles TB, TC, TD and TE - Connection-mode Transport Service over connection-mode Network Service: - Part 1: Subnetwork-type independent requirements for Group TB - Part 2: Subnetwork-type independent require
4、ments for Group TC - Part 3: Subnetwork-type independent requirements for Group TD - Part 4: Subnetwork-type independent requirements for Group TE - Part 5: Definition of profiles TB1111ITB1121 - Part 6: Definition of profiles TCllllITC112I - Part 7: Definition of profiles TDllllITDl121 - Part 8: De
5、finition of profiles TEIlllITE1121 - Part 9: Subnetwork-type dependent requirementsfor Network Layer, Data Link Layer and Physical Layer concerning permanent access to a packet switched data network using virtual calls . . . 111 Copyright International Organization for Standardization Provided by IH
6、S under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISP 10609-14:1994(E) 0 ISO/IEC - Part 10: LAN subnetwork-dependent, media-independent requirements - Part 11:
7、CSMAICD LAN subnehvork-dependent, media-dependent requirements - Part 12: Definition of profile TC51, provision of the 0% connection-mode Transport Service using the OSI connection-mode Network Service in an End System attached to a CSMAICD LAN - Part 14: Definition of profile TC.53, provision of th
8、e OSI connection-mode Transport Service using the OSI connection-mode Network Service in an End System attached to a Token Ring LAN This part of ISO/IEK ISP 10609 contains two annexes. Annex A is normative, annex B is informative. iv Copyright International Organization for Standardization Provided
9、by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 0 ISOLIEC ISO/IEC ISP 10609-14: 1994(E) Introduction This International Standardized Profile (ISP) is defined in
10、accordance with the principles specified by ISO/IEC Technical Report 10000, “Information technology - Framework and taxonomy of International Standardized Profiles”. The context of Functional Standardization is one area in the overall field of Information Technology (IT) standardization activities,
11、covering base standards, profiles, and registration mechanisms. A profile defines a combination 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 base for the development
12、of uniform, internationally recognized system tests. ISPs are produced not simply to “legitimize” a particular choice of base standards and options, but to promote real system interoperability. One of the most important roles for an ISP is to serve as the basis for the development (by organizations
13、other than IS0 and IEC) of internationally recognized test methods. The development and widespread acceptance of tests based on this and other ISPs is crucial to the successful realization of this goal. ISO/IEC ISP 10609 consists of several parts, of which this is part 14. Parts 1 to 4 of ISO/IEC IS
14、P 10609 specify profile requirements that are subnetwork-independent, for each of the transport groups TB, TC, TD and TE, respectively. There are further parts which specify subnetwork-dependent and media-dependent requirements. In addition, for each individual profile there is a part of ISO/IEC ISP
15、 10609 which identifies the specific requirements of that profile, making reference to appropriate material from the relevant subnetwork-independent and subnetwork-dependent parts. This part identifies the specific requirements for profile TC53. V Copyright International Organization for Standardiza
16、tion Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISP 10609-14: 1994(E) This page is intentionally left blank. 0 ISO/lEC Copyright Internatio
17、nal Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARDIZED PROFILE ISO/IEC ISO/IEC ISP 10609-14:199
18、4(E) Information technology - International Standardized Profiles TB, TC, TD and TE - Connection-mode Transport Service over connection-mode Network Service - Part 14: Definition of profile TC53, provision of the OS1 connection- mode Transport Service using the OS1 connection-mode Network Service in
19、 an End System attached to a Token Ring LAN 1 Scope 1.1 General This International Standardized Profile is applicable to End Systems concerned with operating in the Open Systems Interconnection (OSI) environment. It specifies a combination of OS1 standards, which collectively provide the connection-
20、mode Transport Service using the connection-mode Network Service. This part of ISO/IEC ISP 10609 defines the TC53 profile which is applicable to the provision of the OS1 connec- tion-mode Transport Service using the OS1 connection-mode Network Service in an End System attached to a Token Ring LAN su
21、bnetwork. 1.2 Position within the taxonomy The taxonomy of profiles is defined in ISO/IEC TR 10000-2. This part of ISO/IEC ISP 10609 defines the profile: TC53 Connection-mode Transport Service over connection-mode Network Service over Token Ring LAN subnetworks 1.3 Scenario Figure 1 illustrates the
22、configurations of systems to which the TC53 profile is applicable. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without l
23、icense from IHS -,-,- ISO/IEC ISP 10609-14: 1994(E) 0 ISO/IEC TC53 Reference End System Token Ring LAN xx Remote - End System TC53 Reference Point xx other compatible network equipment covered by ISO/IEC TR 10000 - OS1 relays - OS1 end systems - other equipment Figure 1 - Scenario of applicability o
24、f the TC53 profile The TC53 profile specifies the required functions from the supporting protocol stack shown in figure 2 below. Transport Layer 1 ISO/IEC 8073 I Network Layer Data Link Layer ISO/IEC 8878 ISO/IEC 8208 ISO/IEC 888 1 IS0 8802-2 type 2 ISO/IEC 8802-5 Medium Access Control Physical Laye
25、r I ISO/IEC 8802-5 Physical Layer I Figure 2 - Profile protocol stack for a TC53 End System This profile does not specify the required functions for relays. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this part of
26、ISO/IEC ISP 10609. At the time of publication, the editions indicated were valid. All documents are subject to revision, and parties to agreements based on this part of ISO/IEC ISP 10609 are warned against automatically applying any more recent editions of the documents listed below, since the natur
27、e of references made by ISPs to such documents is that they may be specific to a particular edition. Members of IEC and IS0 maintain registers of currently valid International Standards and ISPs, and ITU-T maintains published editions of its current Recommendations. ISO/IEC TR 10000-l : 1992, Iormat
28、ion technology - Framework and taxonomy of International Standardized Profiles - Part 1: Framework 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction o
29、r networking permitted without license from IHS -,-,- 0 ISO/IEC ISO/IEC ISP 10609-14: 1994(E) ISO/IEC TR 10000-2 : 1992, Information technology - Framework and taxonomy of International Standardized Profiles - Part 2: Taxonomy of 0% Profiles ISO/IEC ISP 10608-13 : 1993, Information technology -Inter
30、national Standardized Profile TAnnnn - Connection- mode Transport Service over Connectionless-mode Network Service - Part 13: MAC sublayer and physical layer dependent requirements for a Token Ring LAN subnetwork ISO/IEC ISP 10609-2 : 1992, Information technology -International Standardized Profiles
31、 TB, TC, TD and TE - Connection-mode Transport Service over connection-mode Network Service - Part 2: Subnetwork-type independent requirements for Group TC ISO/IEC ISP 10609-10 : 1994, Information Technology - International Standardized Profiles TB, TC, TD and TE - Connection-mode Transport Service
32、over connection-mode Network Service - Part IO: LAN subnetwork- dependent, media-independent requirements Additional normative references arc found in each of the ISP parts listed above. These additional normative references are base standards used for development of the relevant ISP parts. 3 Defini
33、tions The terms used in this part of ISO/IEC ISP 10609 are defined in the referenced base standards (see clause 2). 4 Abbreviations Abbreviations used in this part of ISO/IEC ISP 10609 are defined in the referenced base standards (see clause 2). 5 Requirements 5.1 Transport layer The requirements fo
34、r the transport layer shall be as specified in ISO/IEC ISP 10609-2, subclause 5.2. 5.2 Network layer The requirements for the network layer shall be as specified in ISO/IEC ISP 10609-10, clause 5, with the following addition: An implementation shall restrict non-standard default packet sizes to a ma
35、ximum of 1408 octets whenever system administration or station management indicates that an NPDU will flow, through a MAC sublayer bridge, over an ISO/IEC 8802-3 CSMA/CD LAN subnetwork. Note - 1408 octets is the largest packet size, according to ISO/IEC 8881, that can be accomodated by a CSMA/CD LAN
36、. 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISP 10609-14: 1994(E) 0 ISO/IEC 5.3
37、 Logical link control sublayer The requirements for the logical link control sublayer shall be as specified in ISO/IEC ISP 10609-10, clause 5. 5.4 Medium access control sublayer The requirements for the medium access control sublayer shall be as specified in ISO/IEC ISP 10608-13, subclauses 5.1 and
38、5.2. 5.5 Physical layer The requirements for the physical layer shall be as specified in ISO/IEC ISP 10608-13, subclause 5.3. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:1
39、5:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 0 ISO/IEC ISO/IEC ISP 10609-14: 1994(E) Annex A (normative) ISPICS requirements list A.1 General options of the profile There are no general options in this profile. A.2 Standards selected and combined in the profile This
40、 profile makes use of the following base standards: - ISO/IEC 8073 - ISO/IEC 8878 - ISO/IEC 8208 - ISO/IEC 8881 - IS0 8802-2 - ISO/IEC 8802-5 A.3 Constraints on base standards A conformant implementation of this profile shall: a meet all subnetwork-type independent constraints on operation of ISO/IE
41、C 8073 as specified in the ISPICS requirements list in ISO/IEC ISP 10609-2, annex A; b) meet all subnetwork-type dependent, media independent constraints on the operation of ISO/IEC 888 1, ISO/IEC 8878, ISOjIEC 8208, and IS0 8802-2, as specified in the ISPICS requirements list in ISO/IEC ISP 10609-1
42、0, annex A; c meet all Token Ring LAN subnetwork-type dependent constraints on the operation of ISO/IEC 8802-5, as specified in the ISPICS requirements list in ISO/IEC ISP 10608-13, annex A. 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NA
43、SA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC ISP 10609-14: 1994(E) 0 ISO/IEC Annex B (informative) Recommendations B.1 ISO/IEC 8208 recommendations An implementation should support all non-st
44、andard default packet sizes (maximum user data field length) from 32 octets to 4096 octets. B.2 IS0 8802-2 recommendations The recommendations provided in ISOBC ISP 10609-10, annex C, are valid with the following addition: Nl values up to 4104 octets should be supported. This is compatible with a Ne
45、twork Layer packet size of 4096 octets. B.3 ISOLEC 8802-S recommendations The MAC sublayer information field lengths that are indicated in ISO/lEC ISP 10608-13 provide the potential to operate Token Ring End Systems at maximum throughput for specific, high speed applications. However, the actual inf
46、ormation field lengths that can be used at the MAC sublayer for a particular instance of communication between two OS1 End Systems will depend on a number of additional factors, such as: the maximum number of octets specified for an LLC I-PDU (Nl); the use of one or more MAC level bridges between th
47、e TC53 reference End System and the remote End System (the maximum Service Data Unit size supported by any bridge is the smaller of those supported by the two attaching LANs). If the TC53 reference End System is communicating, through a MAC sublayer bridge, over an ISO/IEC 8802-3 CSMA/CD LAN subnetw
48、ork then the maximum MAC frame size cannot exceed 1518 octets. Also, if two TC53 End Systems are operating at different data rates (4 and 16 Mbps) through a MAC sublayer bridge, then the maximum Information Field length will be 4428 octets. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 22:15:20 MDTNo reproduction or networking permitted without license from IHS -,