1、 STD-ITU-T RECMN M.3bLL-ENGL 1997 H 48b257L Ob38249 T45 W INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU M.361 I (04197) SERIES M: TMN AND NETWORK MAINTENANCE: INTERNATIONAL TRANSMISSION SYSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUI
2、TS Integrated services digital networks Test management of the B-ISDN ATM layer using the TMN ITU-T Recommendation M.3611 (Previously CCIlT Recommendation) STD-ITU-T RECMN M.3bZL-ENGL 1777 LiBb257L Ob38250 7b7 = ITU-T M-SERIES RECOMMENDATIONS TMN AND NETWORK MAINTENANCE: INTERNATIONAL TRANSMISSION S
3、YSTEMS, TELEPHONE CIRCUITS, TELEGRAPHY, FACSIMILE AND LEASED CIRCUITS Introduction and general principles of maintenance and maintenance organization M. 10-M.299 International transmission systems M. 300-M .559 International telephone circuits M. 560-M. 759 Common channel signalling systems M.760-M.
4、799 International telegraph systems and phototelegraph transmission M.800-M.899 International leased group and supergroup links - M.900-M.999 International leased circuits M. 1000-M.l O99 Mobile telecommunication systems and services M. 1 1 OO-M. 1 1 99 International public telephone network M.1200-
5、M.1299 International data transmission systems M. 1300-M. 1399 Designations and information exchange M.1400-M. 1999 International transport network M.2000-M.2999 Telecommunications management network M.3000-M.3599 Common channel signalling systems M.4000-M.4999 For further details, please refer to I
6、TU-T List of Recommendations. STD-ITU-T RECMN M.3bLZ-ENGL 1797 9 4Bb2591 Ob38251 bT3 9 ITU-T RECOMMENDATION M.3611 TEST MANAGEMENT OF THE B-ISDN ATM LAYER USING THE TMN Summary This Recommendation describes how the test of the B-ISDN ATM layer is managed through the TMN. This Recommendation identifi
7、es two types of ATM layer tests: non-intrusive loopback test and ATM layer performance test. For these test types, the required management functions and the architecture are clarified, and then management information is specified based on the X.745 model. Source ITU-T Recommendation M.3611 was prepa
8、red by ITU-T Study Group 4 (1997-2000) and was approved under the WTSC Resolution No. 1 procedure on the 19th of April 1997. Keywords Asynchronous Transfer Mode (ATM), B-ISDN, fault management, management information, performance management, Telecommunications Management Network (TMN), testing. STD-
9、ITU-T RECMN M.3bLL-ENGL 1997 48b2591 b38252 53T W FOREWORD ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of the ITU. The IT-T is responsible for st
10、udying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T Study
11、Groups which, in their turn, produce Recommendations on these topics. The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in WTSC Resolution No. 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prep
12、ared on a collaborative basis with IS0 and IEC. - NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS The IT draws attention to the possibility that th
13、e practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendat
14、ion development process. As of the date of approval of this Recommendation, the IT hadhad not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information
15、 and are therefore strongly urged to consult the TSB patent database. O ITU 1997 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the IT. 11 R
16、ecommendation M.3611 (04/97) 1 1.1 1.2 2 3 4 5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 CONTENTS Scope General . Relation to other Recommendations References Abbreviations . Configuration reference Test management functions provided through the TMN for the ATM layer . Test description . Loopback test ATM lay
17、er performance test . Management information associated with testing Test categories 7.1.1 Loopback test category ATM layer performance test category . ATM layer performance test object . ATM loopback OAM access . Management infomation . 7.1.2 Managed Objects 7.2.1 7.2.2 7.2.3 ATM loopback test obje
18、ct . 7.2.4 Connectivity OAM access . 7.2.5 VP-VC OAM access . 7.2.6 7.2.7 VP-VC test signal source Attributes 7.3.1 Access point 7.3.3 Associated object drop 7.3.4 Associated object generators . 7.3.5 Associated object insertion 7.3.6 ATM test result 7.3.7 Connectivity OAM access identification 7.3.
19、8 Loopback location identification . VP-VC test action performer . 7.3.2 Assigned test invocation 7.3.9 Measurement time . Parameters Recommendation M.3611 (04/97) Page 1 1 1 1 2 2 3 8 8 8 8 8 8 8 8 9 9 9. 9 9 9 10 10 10 10 11 11 11 12 12 12 12 12 12 . 111 7.4.1 ATM test result parameter . 7.5 Relat
20、ionships between Managed Objects . Annex A - Management information definitions Test categories A . 1 A.2 Managed objects . A.3 Packages . A.4 Attributes A.5 Parameters - A.6 Name Bindings . A.7 ASN . 1 Module . 1 Annex B - MOCS proforma B . 1 B.2 B.3 B . 4 B.5 B.6 iv Introduction Instructions for c
21、ompleting the MOCS proforma to produce a MOCS . ATM layer performance test object class . Statement of conformance to the managed object class Symbols. abbreviations and terms B.4.1 B.4.2 Packages B.4.3 Attributes . B.4.4 Actions B . 4.5 Notifications B.4.6 Parameters . ATM loopback OAM access objec
22、t . B.5.2 Packages B S.3 Attributes . B.5.4 Actions B 5.5 Notifications B.5.6 Parameters . B.5.1 Statement of conformance to the managed object class . ATM loopback test object class . B.6.1 Statement of conformance to the managed object class B.6.2 Packages B . 6.3 Attributes . B.6.4 Actions B.6.5
23、Notifications Recommendation M.3611 (04/97) Page 12 12 16 16 17 19 19 21 21 21 23 23 23 24 24 24 25 26 27 28 . 29 29 29 29 30 31 31 31 32 32 33 34 35 36 - . STD.ITU-T RECMN M.3bLL-ENGL 1997 = Lib257L b38255 249 B.6.6 Parameters . B.7 Connectivity OAM access object class Statement of conformance to t
24、he managed object class B.7.2 Packages B.7.1 B.7.3 Attributes . B.7.4 Actions B.7.5 Notifications B.7.6 Parameters . VP-VC OAM access object class . B.8.1 B.8 Statement of conformance to the managed object class B.8.2 Packages . B . 8.3 Attributes . B.8.4 Actions B.8.5 Notifications B.8.6 Parameters
25、 . VP-VC test action performer object class B.9.1 Statement of conformance to the managed object class B.9.2 Packages B.9.3 Attributes . B.9.4 Actions B.9 B.9.5 Notifications B.9.6 Parameters . VP-VC test signal source object class B . 1 O . 1 Statement of conformance to the managed object class B .
26、 10.2 Packages B . 1 O . 3 Attributes . B.10.4 Actions B . 1 O . 5 Notifications B . 1 O . 6 Parameters . B.10 Page 37 37 37 37 38 38 38 38 39 39 39 40 40 40 40 41 41 41 42 43 43 43 44 44 44 45 45 45 45 Recommendation M.3611 (04197) V Recommendation M.3611 TEST MANAGEMENT OF THE B-ISDN ATM LAYER USI
27、NG THE TMN (Geneva, 1997) 1 Scope 1.1 General This Recommendation describes the testing aspects of ATM management functions using the TMN. It provides generic ATM test management information definitions. The management information is applied to the Q3 interface between equipment supporting OSF and e
28、quipment implementing Virtual PathChannel (VPNC) end points or VPNC connecting points. The management information is based on the test management function specified in Recommendation X.745 i. 1.2 Relation to other Recommendations Recommendation M.3610 2 describes principles and reference models for
29、TMN management of B-ISDN in general. In this Recommendation, test management functions and management information definitions are derived for the ATM layer on the basis of the principles and the reference model discussed in Recommendation M.3610 2. Recommendations 0.191 3 and 1.610 4 speci the testi
30、ng functions of network elements, which are managed by the TMN with using the method described in this Recommendation. Recommendation 0.191 3 presents the measurement mode, the OAM cell format, and the measurement algorithms used in the ATM layer performance test. Meanwhile, Recommendation 1.6 1 O 4
31、 provides the mechanism of the non-intrusive loopback test. This Recommendation addresses the test management of the ATM layer across TMN Q interfaces. . The scope of this Recommendation is the management of temporal performance measurements, which are executed with using test cells. The management
32、information model is specified on the basis of the X.745 model. For semi-permanent performance measurements based on cell header information, the 4.822 5 model may be used as a basis of management information. This type of performance measurements, for example, header error counting based on the HEC
33、 field, are not included in the scope of this Recommendation. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute revisions of this Recommendation. At the time of publication, the editions indicated are valid. All
34、 Recommendations and other references are subject to revision; all users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is
35、 regularly published. 11 ITU-T Recommendation X.745 (1993), Information technology - Open Systems Interconnection - Systems management: Test management function. 2 ITU-T Recommendation M.3610 (1996), Principles for applying the TMN concept to the management of B-ISDN. Recommendation M.3611 (04/97) 1
36、 STD*ITU-T RECMN M-3bLL-ENGL 1777 D 48b2591 Ob38257 OLL ITU-T Recommendation O. 19 1 (1 997), Equipment to assess ATM layer cell transfer performance. ITU-T Recommendation 1.61 O (1 995), B-ISDN operation and maintenance principles and functions . ITU-T Recommendation Q.822 (1994), Stage I, stage 2
37、and stage 3 description for the Q3 interface - Performance munagement. ITU-T Recommendation M.3207.1 (1 996), TMN management service: Maintenance aspects of B-ISDN management. ITU-T Recommendation M. 1400 (1 997), Designationsfor international networks. ITU-T Recommendation X.737 (1995), Information
38、 technology - Open Systems Interconnection - Systems management: Conjdence and diagnostic test categories. ITU-T Recommendation M.3 1 O0 (1 995), Generic network information model. Abbreviations This Recommendation uses the following abbreviations. AME ATM MO MORT NEF OAM OSF TARR TMN vc vcc VP VPC
39、ATM Measurement Equipment Asynchronous Transfer Mode Managed Object Managed Object Referring to Test Network Element Function Operation, Administration, and Maintenance Operations Systems Function Test Action Request Receiver Telecommunications Management Network Virtual Channel Virtual Channel Conn
40、ection Virtual Path Virtual Path Connection 4 Configuration reference The ATM consists of the virtual channel level and the virtual path level. The entities to be managed are the virtual channel/path links and the virtual channel/path connections (see Figure 1). TMN management functions are accessib
41、le at the 43 interfaces of equipment implementing virtual path and virtual channel end points and connecting points. 2 Recommendation M.3611 (0497) ATM layer STD-ITU-T RECMN M.3bLL-ENGL 1997 4b2571 b38258 T58 Physical layer F5: Virtual channel level F4: Virtual level Path Transmission path 111 O O D
42、igital section O O : Regenerator section I :- I End point of the corresponding levels 0 Connecting point of the corresponding levels F3: Transmission path level F2: Digital section level F 1 : Regenerator section level TO406340-96 Figure 1M.3611- Entities to be managed in the ATM layer and physical
43、layer 5 This clause lists test-related management functions for the ATM layer. These functions must be provided at the 43 interfaces of equipment implementing virtual pathvirtual channel end points and connecting points. The functions are imported from components that are described in Recommendation
44、 M.3207.1 6. Test management functions provided through the TMN for the ATM layer Recommendation M.3611 (04197) 3 STD-ITU-T RECMN M.3bLL-ENGL 1997 48b257L Ob38257 994 1) Non-intrusive loopback test function (see Recommendation 1.6 1 O) The non-intrusive loopback test is executed through the mechanis
45、m specified in Recommendation 1.610 4. This test is not executed by the test equipment described in Recommendation 0.191 3. To manage the test, the following functions are provided by the TMN. a) OSF requests NE to execute ATM non-intrusive loopback test. The test request has to include: - loopback
46、location (see Recommendation M.1400 7) or indication for end-to-end measurement; and the identification of the trail termination function or the connection point that inserts and analyzes the loopback OAM cell. b) NEF reports the results of non-intrusive loopback tests. The report has to include the
47、 results as well as the identification of the trail termination functions or the connection points of the subnetwork connection that performs the test. c) OSF requests NEF to set conditions for the non-intrusive loopback test including duration, reporting frequency, etc. The request has to include t
48、he parameter values and the identification of the associated termination function or connection point. - Figure 2 shows the architecture for the non-intrusive loopback test function. q3 - VPNC end or connecting points NE NEF J Loopback location A-I I I Loopback source location TO406350-96 VPCNCC Fig
49、ure 2M.3611- The architecture for the non-intrusive loopback test function ATM layer performance test (see Recommendation O. 19 1 3) The ATM layer performance test is executed by the test equipment specified in Recommendation 0.191 131. To manage the test, the following functions are provided by the TMN. a) OSF requests NEF to insert or drop test cells for ATM layer performance testing in the in-service, out-of-service, or drop-and-insert measurement mode. The request has to include the identification of the insertion o
