ETSI EN 300 771-6-1999 Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No Two (DSS2) Protocol B-ISDN User-Network Interface Layer 3 Spec.pdf

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1、STD.ETS1 EN 300 771-b-ENGL 1999 3400855 0383875 9TL = PLEASE NOTE This document is normally accompanied by a disk/disks when purchased in hardcopy. The diskdisks contain information which would be of no value as a hardcopy docu inen t. If you require a copy of the disldisks, please use the contact i

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4、 STD-ETSI EN 300 771-6-ENGL 1997 E 3400855 O381876 838 EN 300 771 -6 1.1.2 (1999-03) European Standard (Tetecommunications series) Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-network interface layer 3 specification

5、 for point-to-multipoint calbearer control; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation extra Information for Testing (PIXIT) proforma specification for the network 2 EN 300 T11- V1.1.2 (199403) Reference REN/SPS-05085-6C (751 iOidc.PDF) Keywords B-ISDN, DSSP, UNI, layer 3,

6、 basic, ATS, PIXIT, network, ISDN, multipoint, broadband Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre ia Sous-Prfecture de Grasse (06) N

7、o 780U88 Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariat etci.fr Individual copies of this ETSI deliverable can be downloaded from http:/www.etsi.org If you find errors in the present document, send your comment to: editoretsi.fr Copyright Notification No part may be reproduced e

8、xcept as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 1999. All rights reserved. ETSI STD*ETSI EN 300 773-b-ENGL 3999 3400855 0383878 bo0 = 3 EN 300 n1- V1.1.2 (1999-03) Contents I

9、ntellectual Property Rights . 5 Foreword 5 1 2 3 3.1 3.2 4 4.1 4.2 5 6 7 8 9 Scope 6 References . 6 Definitions and abbreviations 7 Definitions . 7 Abbreviations . 7 Abstract Test Method (ATM) 8 Description of ATM used 8 Conventions for test components and PCOs 8 Untestable test purposes 9 ATS to TP

10、 map 9 PCTR conformance . 9 PIXIT conformance . 10 ATS conformance 10 Annex A (normative): Protocol Conformance Test Report (PCTR) proforma 11 A.l.l Protocol conformance test report . 11 A.1.2 IUT identification 11 A.1.3 Testing environment 11 A.1.4 Limits and reservations 12 A.1.5 Comments 12 A.2 I

11、UT Conformance status 12 A.3 Static conformance summary . 12 A.4 AS A.6 A.7 Observations 27 A.1 Identification summary 11 Dynamic conformance summary . 12 Test campaign report . 14 Partial PMIT proforma . 28 Identification summary 28 Static conformance review rep0 rt 13 Annex B (normative): B . 1 B.

12、2 Abstract test suite summary . 28 B.3 Test laboratory . 28 B.4 Client (of the test laboratory) 29 B.5 System Under Test (SUT) . 29 B.6 Protocol information 30 B.6.1 Protocol identification . 30 B.6.2 B.6.3 Stimuli for the IUT . 30 B.6.4 Test management timers 30 Configuration to be tested 30 B.6.5

13、Parameter values 31 ETSI STD-ETSI EN 300 771-6-ENGL 1999 3400855 0381875 547 4 EN 300771-6 V1.1.2 (1999-03) Annex C (normative): C.l C.2 Abstract Test Suite (ATS) 32 The TTCN Graphical form (7TCN.GR) . 32 The TCN Machine Processable form (?TCN.MP) . 32 History 33 ETSI 3400855 03BLBBO 2b I 5 EN 300 7

14、71-6 V1.1.2 (199403) Intellectual Property Rights IFRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in SR o00 314: “Intel

15、lectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notijed to ETSI in respect of ETSI standards“, which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/www.etsi.org/ipr). Pursuant to the ETSI IPR Policy, no inve

16、stigation, including iPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in SR O00 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (T

17、elecommunications series) has been produced by ETSI Technical Committee Signalling Protocols and Switching (SPS). The present document is part 6 of a multi-part EN covering the Digital Subscriber Signalling System No. two (DSSZ) protocol specification for the Broadband Integrated Services Digital Ne

18、twork (B-ISDN) signalling user-network layer 3 specification for point-to-multipoint callhearer control, as described below: Part 1: Part 2: Part 3: Part 4: “Protocol specification ITU-T Recommendation 4.2971 (1993, modified“; “Protocol Implementation Conformance Statement (PICS) specification profo

19、rma specification“; “Test Suite Structure and Test Purposes (TSS “Abstract Test Suite (ATS) and partial Protocol Implementation extra Information for Testing (PIXIT) proforma specification for the user“; “Test Suite Structure and Test Purposes (TSS “Abstract Test Suite (ATS) and partial Protocol Imp

20、lementation extra Information for Testing (PEUT) proforma specification for the network“. Part 5: Part 6: National transposition dates Date of adoption of this EN Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or endorsement of this EN (dop/e): Date

21、 of withdrawal of any conflicting National Standard (dow): 5 June 1998 30 September 1998 31 March 1999 31 March 1999 ETSI STD-ETSI EN 300 77L-b-ENGL L979 3400855 038LBBL IT5 W 6 EN 300 771-6 V1.1.2 (199943) 1 Scope This sixth part of EN 300 771 specifies the network Abstract Test Suite (ATS) for the

22、 T, reference point or coincident S, and T, reference point (as defined in -T Recommendation 1.413 8) of implementations conforming to the standards for the signalling user-network layer 3 specification for point-to-multipoint callhearer control of the Digital Subscriber Signalling System No. two (D

23、SS2) protocol for the pan-European Broadband Integrated Services Digital Network (B-ISDN), ETS 300 771-1 i. A further part of this EN specifies the Test Suite Structure and Test Purposes (TSS Digital Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-network interface layer 3 specific

24、ation for point-to-multipoint callhearer control; Part 1 : Protocol specification ITU-T Recommendation Q.2971 (1995), modified“. I21 ETS 300 771-2: “Broadband Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-network interface layer

25、 3 specification for point-to-multipoint callhearer control; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification“. 31 141 PI I61 71 I81 91 ISO/iEC 9646-1: “Information technology - Open System Interconnection - Conformance testing methodology and framework - Part 1: G

26、eneral concepts“. ISO/IEC 9646-2: “Information technology - Open System Interconnection - Conformance testing methodology and framework - Part 2: Abstract test suite specification“. ISO/IEC 9646-3: “Information Technology - OS1 Conformance Testing Methodology and Framework Part 3: The Tree and Tabul

27、ar Combined Notation“. ISO/IEC 9646-4: “Information technology - Open System Interconnection -Conformance testing methodology and framework - Part 4: Test realization“. ISO/IEC 9646-5: “Information technology - Open System Interconnection Conformance testing methodology and framework, Part 5: Requir

28、ements on test laboratories and clients for the conformance assessment process“. ITU-T Recommendation 1.413 (1993): “B-ISDN user-network interface“. EN 300 443-2: “Broadband integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-networ

29、k interface layer 3 specification for basic callhearer control; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification“. ETSI 7 EN 300 nl-6 V1.1.2 (199403) 3 3.1 Def i n it ions and abbreviations Definit ions For the purposes of the present document, the following terms

30、and definitions apply: Implementation Under Test (IUT): see ISO/IEC 9646-1 3. System Under Test (SUT): see ISOiEC 9646-1 3. Abstract Test Suite (ATS): see ISOiEC 9646-1 3. Protocol Implementation Conformance Statement (PICS): see ISOIIEC 9646- 1 3. PICS proforma: see ISOIIEC 9646-1 3. Protocol Imple

31、mentation Extra Information For Testing (PIXIT): see ISOiEC 9646-1 3. PEUT proforma: see ISO/IEC 9646-1 31. Lower Tester (LT): see ISOIIEC 9646-1 3. Upper Tester (UT): see ISO/IEC 9646-1 3. Point Of Control And Observation (PCO): see ISO/IEC 9646-1 3. 3.2 Abbreviations For the purposes of the presen

32、t document, the following abbreviations apply: ATM ATS B-ISDN CM CP DSS2 ExTS IUT LT MOT MTC PCO PCTR PDU PICS PIXIT PTC SUT TCP TP TTCN UT TP TSS Abstract Test Method Abstract Test Suite Broadband Integrated Services Digital Network Coordination Message Coordination Point Digital Subscriber Signall

33、ing System No. two Executable Test Suite Implementation Under Test Lower Tester Means Of Testing Main Test Component Point of Control and Observation Protocol Conformance Test Report Protocol Data Unit Protocol Implementation Conformance Statement Protocol Implementation extra Information for Testin

34、g Parallel Test Component System Under Test Test Co-ordination Procedures Test Purpose Tree and Tabular Combined Notation Upper Tester Test Purpose Test Suite Structure ETSI STDmETSI EN 300 77%-Ea-ENGL 1999 = 3400855 0381883 T78 m EN 300 771-6 V1.1.2 (1999-03) 8 4 Abstract Test Method (ATM) 4.1 Desc

35、ription of ATM used The requirement for testing the network IUT is to focus on the behaviour of the network IUT at the user-network interface where a TB reference point or coincident SB and TB reference point applies. Thus the IUT is the network DSS2 protocol entity at a particular user-network inte

36、rface and is not the whole network. It is possible to specify an ATS based on a Single party (remote) test method for such an IUT. However, it is considered that an ATS based on such an approach is of limited use as the only way to specify IUT generated PDUs is to use the “implicit send“ statement.

37、Many users of such an ATS would replace the “implicit send“ statements with descriptions of the behaviour at other interfaces. An ATS based on a multi-party test method is considered to be more useful in that it is closer to how a real test suite would be constructed. Such a test method specifies be

38、haviour at multiple network interfaces. One very important limitation here is that tests are focused on one particular interface. Thus the test system is made up one Main Test Component (MTC) and one or more Parallel Test Components (PTC), see figure 1. 4.2 Conventions for test components and PCOs M

39、aster part Slave part I Lo I L1 (pco) I L2 (pco) Figure 1 : Multi-party test method In a masterlslave arrangement, the MTC is considered to be the master while the FCs are the slaves. The “slave“ testers are only an explicit description of how to deal with the remote interfaces during the testing pr

40、ocess, i.e. “how to make the IUT send the required message“. ETSI STD.ETS1 EN 300 771-b-ENGL 3799 m 3400855 0383884 904 m 9 EN 300 771-6 V1.1.2 (1999-03) This means, in particular, that the verdict will only be assigned from the protocol aspects observed on the interface under test (Le. by the “mast

41、er“ tester), as it would be observed by a terminal connected to this interface. A failure in the correlation between the protocol at the different interfaces to which the different testers are connected, i.e. in the mechanism of the functional service itself, will not cause a FAIL verdict. For insta

42、nce, if the IUT fails to send a message on the tested interface after another interface has received the proper stimulus, the verdict will be INCONCLUSIVE. The MTC MTCA has two functions in this configuration. Firstly, it has the MTC function of controlling the one or more PTCs. Thus it is responsib

43、le for starting the PTCs and afterwards coordinates activities by exchanging Coordination Messages (CM) with the PTCs. Secondly it is responsible for the behaviour of the Lower Tester (LT) at PCO LO. A combination of the remote and multi-party test methods is applied. As can be seen from figure 1, s

44、everal Point of Control and Observations (PCOs) are used. All PCOs reside at the service access points between layers 2 and 3. MTC SUT PTc12 Layer 3 Layer 3 Layer 2 Layer 2 Layer 1 Layer 1 Figure 2: Combination of the remote and multi-party test methods The MTC KO is named “LO (“L“ for Lower). The L

45、O PCO is used to control and observe the behaviour of the IUT and test case verdicts are assigned depending on the behaviour observed at this PCO. The PTCs PTC1, PTC2 etc. use PCOs L1, L2 etc. These PCOs are used to control and, in a limited way, observe the behaviour of the network equipment at int

46、erfaces other than the one under test. No verdicts are assigned at these PCOs. As stated in a previous paragraph, the non-receipt of network generated messages at LO, which are stimulated by events at the L1, L2 etc., will result in INCONCLUSIVE rather than FAIL verdicts being assigned. PTC2 is only

47、 activated in that test cases that test the procedures at the access between a root user and the IUT, when more than one party is involved in the call between the root user and the IUT. In test cases which verify that the IUT rejects invalid or unacceptable SETUP messages, no PTC is activated at ail

48、, as these rejection procedures are considered local to the access between IUT and MTC. 5 Untestable test purposes There are no untestable test purposes associated with this ATS. 6 ATS to TP map The identifiers used for the TFs are reused as test case names. Thus there is a straightforward one-to-on

49、e mapping. 7 PCTR conformance A test laboratory, when requested by a client to produce a Protocol Conformance Test Report (PCTR), is required, as specified in ISO/IEC 9646-5 7, to produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 7. ETSJ 10 EN 300nl- V1.1.2 (1999-03) Furthermore, a test laboratory, offering testing for the ATS specification contained in annex C, when requested by a client to produce a PCTR, is required to produce a PCTR conformant with the PCTR profo