1、 ETSI TS 103 238-3 V1.1.1 (2015-01) Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specifications for NAT64 technology; Part 3: Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT) floppy3TECHNICAL SPECIFICATION ETSI ET
2、SI TS 103 238-3 V1.1.1 (2015-01)2Reference DTS/CABLE-00011-3 Keywords ATS, CPE, IP, IPv6 ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture
3、de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the p
4、rior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the presen
5、t document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of th
6、e following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF ve
7、rsion shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI regi
8、stered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)3Contents Intellec
9、tual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Abstract test method . 8g34.1 Abstract protocol tester 8g34.2 Test
10、configurations . 9g34.2.1 CF01: LSN as IUT 9g34.3 TTCN-3 Test architecture. 10g34.4 Ports and ASPs (Abstract Services Primitives) 12g34.4.1 TTCN-3 ports 12g34.4.2 Abstract Service Primitives 12g35 Implemented Test Purposes 13g36 ATS conventions 13g36.1 Naming conventions . 13g36.1.1 General guidelin
11、es 13g36.1.2 NAT64 specific TTCN-3 naming conventions . 15g36.1.3 Usage of Log statements . 15g36.1.4 Test Case (TC) identifier 16g36.2 On line documentation . 16g3Annex A (normative): Partial PIXIT proforma for NAT64 . 17g3A.1 Identification summary. 17g3A.2 ATS summary 17g3A.3 Test laboratory 17g3
12、A.4 Client identification 17g3A.5 SUT 18g3A.6 Protocol layer information 18g3A.6.1 Protocol identification 18g3A.6.2 IUT information . 19g3Annex B (normative): PCTR Proforma for NAT64 . 21g3B.1 Identification summary. 21g3B.1.1 Protocol conformance test report 21g3B.1.2 IUT identification . 21g3B.1.
13、3 Testing environment . 21g3B.1.4 Limits and reservation 22g3B.1.5 Comments. 22g3B.2 IUT Conformance status 22g3B.3 Static conformance summary . 22g3ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)4B.4 Dynamic conformance summary 23g3B.5 Static conformance review report . 23g3B.6 Test campaign report 24g3B.7
14、 Observations . 25g3Annex C (normative): TTCN-3 library modules . 26g3C.1 Electronic annex, zip file with TTCN-3 code 26g3History 27g3ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. T
15、he information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available f
16、rom the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (
17、or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Integrated broadband cable telecommunication networks (CABLE). The present document is part 3 of a m
18、ulti-part deliverable covering the conformance test specification for NAT64 technology: Part 1: “Test requirements and Protocol Implementation Conformance Statement (PICS) proforma“; Part 2: “Test Suite Structure and Test Purposes (TSS Part 3: “Abstract Test Suite (ATS) and Protocol Implementation e
19、Xtra Information for Testing (PIXIT)“. The development of the present document follows the guidance provided in the ETSI EG 202 798 i.1. Therefore the present document is also based on the guidance provided in ETSI EG 202 798 i.1. Modal verbs terminology In the present document “shall“, “shall not“,
20、 “should“, “should not“, “may“, “may not“, “need“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when us
21、ed in direct citation. ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)61 Scope The present document contains the Abstract Test Suite (ATS) for NAT64 technology as defined in RFC 6052 1 and RFC 6146 2 which address specific cable industry requirements as defined in ETSI TS 101 569-1 11 in compliance with the
22、 relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 6. The objective of the present document is to provide a basis for conformance tests for NAT64 technology equipment giving a high probability of inter-operability between different manufacturers equipment. Th
23、e ISO standards for the methodology of conformance testing (ISO/IEC 9646-1 3 and ISO/IEC 9646-2 4) as well as the ETSI rules for conformance testing (ETSI ETS 300 406 7) are used as a basis for the test methodology. 2 References 2.1 Normative references References are either specific (identified by
24、date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly
25、 available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the
26、 present document. 1 IETF RFC 6052: “IPv6 addressing of IPv4/IPv6 translators“. 2 IETF RFC 6146: “Stateful NAT64: Network Address and Protocol Translation from IPv6 Clients to IPv4 Servers“. 3 ISO/IEC 9646-1 (1994): “Information technology - Open Systems Interconnection - Conformance testing methodo
27、logy and framework - Part 1: General concepts“. 4 ISO/IEC 9646-2 (1994): “Information technology - Open Systems Interconnection - Conformance testing methodology and framework - Part 2: Abstract Test Suite specification“. 5 ISO/IEC 9646-6 (1994): “Information technology - Open Systems Interconnectio
28、n - Conformance testing methodology and framework - Part 6: Protocol profile test specification“. 6 ISO/IEC 9646-7 (1995): “Information technology - Open Systems Interconnection - Conformance testing methodology and framework - Part 7: Implementation Conformance Statements“. 7 ETSI ETS 300 406 (1995
29、): “Methods for testing and Specification (MTS); Protocol and profile conformance testing specifications; Standardization methodology“. 8 ETSI ES 201 873-1: “Methods for Testing and Specification (MTS); The Testing and Test Control Notation version 3; Part 1: TTCN-3 Core Language“. 9 ETSI TS 103 238
30、-1: “Integrated broadband cable telecommunication networks (CABLE); Integrated Broadband Cable and Television Networks Cable IPv6 Transition Test Plan for NAT64; Part 1: Test requirements and Protocol Implementation Conformance Statement (PICS) proforma“. 10 ETSI TS 103 238-2: “Integrated broadband
31、cable telecommunication networks (CABLE); Integrated Broadband Cable and Television Networks Cable IPv6 Transition Test Plan for NAT64; Part 2: Test Suite Structure and Test Purposes (TSS Cable Network Transition to IPv6 Part 1: IPv6 Transition Requirements“. 2.2 Informative references References ar
32、e either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperl
33、inks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI EG 202 798:
34、 “Intelligent Transport Systems (ITS); Testing; Framework for conformance and interoperability testing“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in ETSI TR 101 569-1 11, ISO/IEC 9646-1 3 and ISO/IEC 9646-7 6 apply. 3.2
35、 Abbreviations For the purposes of the present document, the following abbreviations apply. ALG Application Layer Gateway ASP Abstract Services PrimitivesATM Abstract Test Method ATS Abstract Test Suite CPE Customer Premises Equipment DHCP Dynamic Host Configuration Protocol DNS Domain Name System F
36、TP File Transfer Protocol GRT Global Routing Table HTTP HyperText Transfer Protocol ICMP Internet Control Message Protocol IETF Internet Engineering Task Force IP Internet Protocol IPv4 IP version 4 IPv6 IP version 6 IUT Implementation Under Test LAN Local Area Network LSN Large Scale NAT MSS (TCP)
37、Maximum Segment Size MTC Main Test Component MTS Methods for Testing and Specification MTU Maximum Transmission Unit NAT Network Address Translation / Network Address Translator NPU Network Processing Unit PA Platform Adaptor PIXIT Protocol Implementation eXtra Information for Testing PPTP Point-to-
38、Point Tunneling Protocol PTC Parallel Test Component RSTP Rapid Spanning Tree Protocol ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)8RTSP Real-Time Streaming Protocol SA System Adaptor SIP Session Initiation Protocol SUT System Under Test TA Test Adaptor TC Test CaseTCP Transmission Control Protocol TP Te
39、st Purpose TSS Test Suite Structure TTCN Testing and Test Control Notation VRF Virtual Routing and Forwarding 4 Abstract test method This clause describes the ATM used to test the NAT64 technology. 4.1 Abstract protocol tester An abstract protocol tester presented in figure 1 is a process providing
40、the test behaviour for testing an IUT. Thus it will emulate an entity which is capable of proving the IUT functionalities. This type of test architecture provides a situation of communication which is equivalent to real operation between real devices. The test system will simulate valid and invalid
41、behaviours, and will analyse the reaction of the IUT. Then the test verdict, e.g. pass or fail, will depend on the result of this analysis. Thus this type of test architecture enables to focus the test objective on the IUT behaviour only. In order to access an IUT, the corresponding abstract protoco
42、l tester needs to use lower layers to establish a proper connection to the system under test (SUT) over a physical link (Lower layers link). Figure 1: Generic abstract protocol tester The “Protocol Data Units“ (PDUs) are the messages exchanged between the IUT and the abstract protocol tester which p
43、ermits to trigger the IUT and to analyse its reactionThe result of the analysis allows to assign the test verdict. Further control actions on the IUT may be necessary from inside the SUT, for instance to simulate a primitive from the upper layer or the management/security entity. Further details on
44、such control actions are provided by means of an upper tester presented in clause 4.3. The above “Abstract Test Method“ (ATM) is well defined in ISO/IEC 9646-1 3 and supports a wide range of approaches for testing including the TTCN-3 abstract test language 8.The abstract protocol tester used for NA
45、T64 test suite is described in figure 2. The test system will send and receive IP packets, by using other upper layer protocols such as DHCP, DNS and FTP, in order to analyse NAT64 functionality. SUTTest systemLower layersAbstract protocol testerLower layersIUTLower layers linkPDUsETSI ETSI TS 103 2
46、38-3 V1.1.1 (2015-01)9NOTE: * Those protocols are used to prove certain NAT64 functionalities. Figure 2: Abstract Protocol Tester - NAT64 4.2 Test configurations The test suite for NAT64 uses only a test configuration to cover the different test scenarios where Large Scale NAT (LSN) is the IUT. 4.2.
47、1 CF01: LSN as IUT In this configuration, the LSN is the IUT and the test system simulates an IPv6 client in one side and a IPv4 server in the other side. Figure 3: CF01, LSN equipment is the IUT LSN - IUT Test system (TTCN-3) IPv4 Host - Simulated IPv6 Host - Simulated Test System IPv4/IPv6 Etherne
48、t System Under Test NAT64 Functionality IPv4/IPv6 Ethernet Lower Layers Link IP packets DNS/FTP/ SIP/RTSP/etc.* ETSI ETSI TS 103 238-3 V1.1.1 (2015-01)104.3 TTCN-3 Test architecture In general, a conformance test system architecture based on TTCN-3 is as figure 4 shows. Figure 4: Global test archite
49、cture The “System Under Test“ (SUT) contains: The “Implementation Under Test“ (IUT), i.e. the object of the test. The “Upper tester application“ enables to trigger or capture some actions (i.e. higher layer service primitives) on the IUT. The “NAT64 lower layers“ enable to establish a proper connection to the system under test (SUT) over a physical link (Lower layer transport link). The “Upper tester transport“ is a functionality, which enables the test system to communicate with the upper tester application.
