1、ELECOMMUNICATION STANDARD LETS 300 309 May 1995 Source: ETSI TC-SPS Reference: DI/SPS-05008 UDC: 621.395 Key words: ISDN, DSS1, PIXIT, layer 2, basic, access, user Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSSI); Partial Protocol Implementation extra I
2、nformation for Testing (PIXIT) proforma specification for data link layer protocol for general application (basic access, user) ETSI European Telecommunications Standards institute ETSI Secretariat Postal address: 06921 Sophia Antipolis Cedex - FRANCE Office address: Route des Lucioles - Sophia Anti
3、poiis - Valbonne - FRANCE Tel.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 0 European Telecommunications Standards Institute 1 995. Ali rights reserved. No part may be reproduced except as authorised by written permission. The copyright and the foregoing restriction on reproduction extend to all media i
4、n which the information may be embodied. ETSI I-ETS*300 309 95 3400855 0020030 322 = ETSI I-ETS*300 309 95 3400855 O020031 269 Page 2 I-ETS 300 309: May 1995 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur
5、. If you have comments concerning its accuracy, please write to “ETSI Editing and Standards Approval Dept.“ at the address shown on the title page. ETSI I-ETSm300 309 95 3400855 0020032 IT5 Page 3 LETS 300 309: May 1995 Contents Foreword . 5 Introduction 5 1 Scope . 7 2 Normative references 7 3 Defi
6、nitions and abbreviations 7 3.1 Definitions . 7 3.2 Abbreviations 8 4 Conformance . 8 Annex A (normative): Partial PIXIT proforma 9 A . 1 A.2 A.3 A.4 A.5 A.6 Identification summary 9 Abstract test suite summary . 9 Test laboratory . 9 Client (of the test laboratory) 10 System Under Test (SUT) 10 Pro
7、tocol information 11 A.6.1 Protocol identification . 11 A.6.2 Parameter values 11 A.6.3 Timer values 11 A.6.4 Sending of frames by IUT 12 A.6.5 Call states stability . 12 History 13 ETSI I-ETS*300 307 75 m 3400855 0020033 031 m Page 4 LETS 300 309: May 1995 Blank page ETSI I-ETS*300 307 75 3400855 0
8、020034 T78 W Page 5 I-ETS 300 309: May 1995 Foreword This Interim European Telecommunication Standard (I-ETS) has been produced by the Signalling Protocols and Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI). An ETSI standard may be given LETS status
9、 either because it is regarded as a provisional solution ahead of a more advanced standard, or because it is immature and requires a “trial period“. The life of an I-ETS is limited to three years after which it can be converted into an ETS, have its life extended for a further two years, be replaced
10、 by a new version or, be withdrawn. This I-ETS forms part of a set of I-ETSs completing the documentation of ETS 300 125 (ISDN data link layer protocol) as specified in ISO/IEC 9646-1 (e.g. conformance testing) as follows: I-ETS 300 305: “Protocol Implementation Conformance Statement (PICS) proforma
11、 specification (basic access, user)“; LETS 300 306: “PICS proforma specification (primary rate access, user)“; I-ETS 300 307: “PICS proforma specification (basic access, network)“; I-ETS 300 308: “PICS proforma specification (primary rate access, network)“; I-ETS 300 309: “Partial Protocol Implement
12、ation extra Information for Testing (PIXIT) proforma specification (basic access, user)“; I-ETS 300 310: “Partial PIXIT proforma specification (primary rate access, user)“; I-ETS 300 313: “Abstract test suite specification (user)“. Proposed announcement date Date of latest announcement of this I-ETS
13、 (doa): 31 August 1995 Introduction To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and options have been implemented for a given Open Systems Interconnection (OSI) protocol. Such a statement is called a Protocol Implementation Confor
14、mance Statement (PICS). In addition to the PICS, it will be normal for the test laboratory to require a Protocol Implementation extra Information for Testing (PIXIT) statement based on a proforma, related to a specific abstract test suite and to the relevant means of testing. This PIXIT proforma wil
15、l normally be provided by the test laboratory to the client with a request for its completion together with the PICS proforma. The partial PIXIT proforma contained in annex A of this LETS is required to be augmented, as necessary, by the test realizer (who produces the executable test suite) and by
16、the test laboratory in order to produce the (non-partial) PIXIT proforma. The completed PIXIT will normally be used in conjunction with the completed PICS, as it adds precision to the information given in the PICS. ETSI I-ETSU300 309 95 m 3400855 0020035 904 m Page 6 LETS 300 309: May 1995 Blank pag
17、e ETSI I-ETSs300 309 95 = 3400855 O020036 BY0 Page 7 I-ETS 300 309: May 1995 1 Scope This Interim European Telecommunication Standard (I-ETS) provides the partial Protocol Implementation extra Information for Testing (PIXIT) proforma for the integrated Services Digital Network (ISDN) data link layer
18、 protocol (basic access, user) as specified in ETS 300 125 i11 in compliance with the relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-1 4, ISO/IEC 9646-2 5, ISO/IEC 9646-4 61 and ISO/IEC 9646-5 71. 2 Normative references This I-ETS incorporates by dated and u
19、ndated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this I-ETS only when incorpora
20、ted in it by amendment or revision. For undated references the latest edition of the publication referred to applies. i1 1 i21 i31 i41 151 i61 ETS 300 125 (1 991 ): “Integrated Services Digital Network (ISDN); User-network interface data link layer specification; Application of CCITT Recommendations
21、 Q.92011.440 and 0.921 /1.441“. I-ETS 300 305 (1 994): “Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1); Protocol Implementation Conformance Statement (PICS) proforma specification for data link layer protocol for general application (basic access, use
22、r)“. LETS 300 313 (1 995): “Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSSI 1; Abstract Test Suite (ATS) specification for data link layer protocol for general application (user)“. ISO/IEC 9646-1 (I 991 1: “Information technology - Open Systems Intercon
23、nection - Conformance testing methodology and framework - Part 1 : General concepts“. ISO/IEC 9646-2 (1 991 ): “Information technology - Open Systems interconnection - Conformance testing methodology and framework - Part 2: Abstract test suite specification“. ISO/IEC 9646-4 (1 991 1: “Information te
24、chnology - Open Systems Interconnection - Conformance testing methodology and framework - Part 4: Test realization“. ISO/IEC 9646-5 (I 991 ): “Information processing systems - Open Systems Interconnection - Conformance testing methodology and framework - Part 5: Requirements on test laboratories and
25、 clients for the conformance assessment process“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of this I-ETS, the following definitions apply: client: Refer to ISO/IEC 9646-1 141. Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 41. Protocol Implementation Conformance Sta
26、tement (PICS): Refer to ISO/IEC 9646-1 141. PICS proforma: Refer to ISO/IEC 9646-1 41. _ - - ETSI I-ETS*300 309 95 3400855 0020037 787 Page 8 LETS 300 309: May 1995 Protocol Implementation extra Information for Testing (PIXIT): Refer to ISO/IEC 9646- 1 141, PIXIT proforma: Refer to ISO/IEC 9646-1 14
27、1. System Under Test (SUT): Refer to ISO/IEC 9646-1 141. test laboratory: Refer to ISO/IEC 9646-1 i41. user: The DSSl protocol entity at the user side of the user-network interface. 3.2 Abbreviations For the purposes of this I-ETS, the following abbreviations apply: ATS DSS 1 I UT MOT os1 PICS PIXIT
28、 SUT TE1 Abstract Test Suite Digital Subscriber Signalling System No. one Implementation Under Test Means Of Testing Open Systems Interconnection Protocol Implementation Conformance Statement Protocol Implementation extra Information for Testing System Under Test Terminal Endpoint Identifier 4 Confo
29、rmance A test realizer, producing an executable test suite for the basic access Abstract Test Suite (ATS) specification contained in LETS 300 313 131, is required, as specified in ISO/IEC 9646-4 61, to produce an augmented partial PIXIT proforma conformant with this partial PIXIT proforma specificat
30、ion. An augmented partial PIXIT proforma which conforms to this partial PIXIT proforma specification shall, as a minimum, have contents which are technically equivalent to annex A. The augmented partial PIXIT proforma may contain additional questions that need to be answered in order to prepare the
31、Means Of Testing (MOT) for a particular Implementation Under Test (IUT). A test laboratory, offering testing for the basic access ATS specification contained in LETS 300 313 31, is required, as specified in ISO/IEC 9646-5 71, to augment the augmented partial PIXIT proforma to produce a PIXIT proform
32、a conformant with this partial PIXIT proforma specification. A PIXIT proforma which conforms to this partial PIXIT proforma specification shall, as a minimum, have contents which are technically equivalent to annex A. The PIXIT proforma may contain additional questions that need to be answered in or
33、der to prepare the test laboratory for a particular IUT. ETSI I-ETS*300 309 95 U 3400855 O020038 bL3 Page 9 LETS 300 309: May 1995 Annex A (normative): Notwithstanding the provisions of the copyright clause related to the text of this I-ETS, ETSI grants that users of this LETS may freely reproduce t
34、he partial PIXIT proforma in this annex so that it can be used for its intended purposes and may further publish the completed PIXIT. Partial PIXIT proforma A. 1 Identification summary PIXIT number: Test laboratory name: Date of issue: Issued to: A.2 Abstract test suite summary Protocol specificatio
35、n: Abstract test method: ETS 300 125 ll remote test method (see ISO/IEC 9646-2 (51 ATS specification: I-ETS 300 313 3 A.3 Test laboratory Test laboratory identification: . Accreditation status of the test service: Accreditation reference: Test laboratory manager: Test laboratory contact: Means of te
36、sting: Test laboratory instructions for completion: ETSI I-ETS*300 309 95 W 3400855 0020037 55T M Page 10 LETS 300 309: May 1995 A.4 Client (of the test laboratory) Client identification: Client test manager: Client contact: Test facilities required: A.5 System Under Test (SUT) Name: Version: SCS re
37、ference: Machine configuration: Operating system identification: IUT identification: PICS (all layers): Limitations of the SUT: Environmental conditions: ETSI I-ETS*300 309 95 m 3400855 0020040 271 m Page 11 I-ETS 300 309: May 1995 Provide, if possible, . PICS Supported reference (Y/N) A.6 Protocol
38、information ValuelAction PICS items referenced in the tables in the remaining parts of this proforma are those contained in I-ETS 300 305 121. Item limer Provide, if possible, the maximum time . Supported (YIN) 2.1 Identity from receiving a stimulus which may result in the sending of an Identity Req
39、uest to sending from receipt of a frame (resulting in DL-DATA- INDICATION with information which requires response at layer 3) to when the IUT responds with a frame (as a result of DL-DATA- REQUEST with the layer 3 response) Request timer of the request Layer 3 response timer 2.2 A.6.1 Protocol iden
40、tification Value implemented (SI Specification reference: ETS 300 125 Il Protocol version: basic access, user PICS reference: NOTE: The PICS reference should reference a completed PICS which is conformant with the PICS proforma contained in LETS 300 305 21. A.6.2 Parameter values Table A. 1 : Parame
41、ter values Item 1.1 1.2 the TE1 value(s1 to be used in the case of non-automatic assignment and the action(s1 necessary to perform the assignment coding of an information field containing a compatible SETUP message without Channel identification information element PC 1.1 A.6.3 limer values Table A.
42、2: Timer values ETSI I-ETS*:300 309 95 3400855 OOEOO4L LOB Question Does the layer 3 entity of the IUT issue a DL-RELEASE-REQUEST primitive after the call reference is released (.e. send a DISC frame on ending a Layer 3 session)? Page 12 LETS 300 309: May 1995 Supported (Y /N 1 A.6.4 Sending of fram
43、es by IUT Item I Item Is the IUT stable in . Supported IY IN 1 A.6.5 Call states stability Table A.4: Ability to remain in call states 1 . - . TE1 unassigned state (State l)? (see note) TE1 assianed state (State 4) for at least 6 seconds? I NOTE: Where TE1 is not automatically assigned, stability in
44、 state 1 relates to the ability to remove the assigned TEI. Where the TE1 is automatically assigned, stability in state 1 relates to the ability to remain in state 1 after being unable to obtain a TEI. ETSI I-ETS*300 307 75 3400855 0020042 044 Page 13 LETS 300 309: May 1995 February 1993 February 1995 May 1995 History Public Enquiry PE 39: 1993-03-01 to 1993-08-06 Vote V 74: 1995-02-20 to 1995-04-1 4 First Edition ISBN 2-7437-01 39-0 Dpt lgal : Mai 1995
