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    ITU-T G 774 7-2001 Synchronous Digital Hierarchy (SDH) - Management of Lower Order Path Trace and Interface Labelling for the Network Element View Series G Transmission Systems and T.pdf

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    ITU-T G 774 7-2001 Synchronous Digital Hierarchy (SDH) - Management of Lower Order Path Trace and Interface Labelling for the Network Element View Series G Transmission Systems and T.pdf

    1、INTERNATIONAL TELECOMMUNICATION UNIONITU-TG.774.7TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITU(02/2001)SERIES G: TRANSMISSION SYSTEMS AND MEDIA,DIGITAL SYSTEMS AND NETWORKSDigital terminal equipments Operations, administrationand maintenance features of transmission equipmentSynchronous digital hier

    2、archy (SDH)management of lower order path trace andinterface labelling for the network element viewCAUTION !PREPUBLISHED RECOMMENDATIONThis prepublication is an unedited version of a recently approved Recommendation.It will be replaced by the published version after editing. Therefore, there will be

    3、differences between this prepublication and the published version.FOREWORDThe International Telecommunication Union (ITU) is the United Nations specialized agency in the field oftelecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ ofITU. ITU-T is responsi

    4、ble for studying technical, operating and tariff questions and issuingRecommendations on them with a view to standardizing telecommunications on a worldwide basis.The World Telecommunication Standardization Assembly (WTSA), which meets every four years,establishes the topics for study by the ITU-T s

    5、tudy groups which, in turn, produce Recommendations onthese topics.The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1.In some areas of information technology which fall within ITU-Ts purview, the necessary standards areprepared on a collaborative basis w

    6、ith ISO and IEC.NOTEIn this Recommendation, the expression “Administration“ is used for conciseness to indicate both atelecommunication administration and a recognized operating agency.INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Reco

    7、mmendation mayinvolve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence,validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or othersoutside of the Recommendation development process.As of the date of approv

    8、al of this Recommendation, ITU had/had not received notice of intellectualproperty, protected by patents, which may be required to implement this Recommendation. However,implementors are cautioned that this may not represent the latest information and are therefore strongly urgedto consult the TSB p

    9、atent database. ITU 2001All 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 ITU.ITU-T G.774.7 (02/2001) Prepublished version 1RECOMMENDATION G.774

    10、.07“SYNCHRONOUS DIGITAL HIERARCHY (SDH) MANAGEMENT OF LOWERORDER PATH TRACE AND INTERFACE LABELLING FOR THE NETWORKELEMENT VIEW”SummaryThis Recommendation provides an information model for the Management of Lower Order PathTrace and Interface Labelling in Synchronous Digital Hierarchy (SDH) Networks

    11、. This modeldescribes the managed object classes and their properties for the Lower Order Path Trace andInterface Labelling functions as related to SDH Network Elements. These objects are useful todescribe information exchanged across interfaces defined in Recommendation M.3010Telecommunications Man

    12、agement Network (TMN) architecture for the management of the LowerOrder Path Trace and Interface Labelling functions.1. ScopeThis Recommendation covers the following functionality: the ability to configure and retrieve a label associated with electrical SDH physical interfaces; the ability to config

    13、ure and retrieve a label associated with optical SDH physical interfaces; the ability to configure path trace on SDH lower order paths.The rationale for supporting the above functionality is that the functions were agreed as changes inthe G.774 Implementors Guide, but these changes are functional ex

    14、tensions and not defect fixes.Therefore, a specific new Recommendation was created.Structure of this RecommendationSubclause 5.1 provides an overview of the SDH Interface Label and Lower Order Path Traceinformation model. Clauses 6-12 describe the information model using the notation mechanismsdefin

    15、ed in Recommendation X.722 (Guidelines for the Definition of Managed Objects). Clause 15contains the syntax definitions of the information carried in the protocol using Abstract SyntaxNotation One (ASN.1) defined in Recommendation X.680-683. Clauses 5-15 are normative; all othertext is informative.2

    16、. ReferencesThe following Recommendations and other references contain provisions which, through referencein this text, constitute provisions of this Recommendation. At the time of publication, the editionsindicated were valid. All Recommendations and other references are subject to revision: all us

    17、ers ofthis Recommendation are therefore encouraged to investigate the possibility of applying the mostrecent edition of the Recommendations and other references listed below. A list of the currently validITU-T Recommendations is regularly published. ITU-T Recommendation G.707 (2000), Network-node in

    18、terface for the synchronous digitalhierarchy. ITU-T Recommendation G.773 (1993), Q-Interface protocols ITU-T Recommendation G.774 (2000), SDH management information model for the networkelement view.ITU-T G.774.7 (02/2001) Prepublished version 2 ITU-T Recommendation G.783 (1998), Characteristics of

    19、Synchronous Digital Hierarchy(SDH) equipment functional blocks. ITU-T Recommendation G.784 (1999), Synchronous Digital Hierarchy (SDH) management. ITU-T Recommendation G.803 (1997), Architectures of transport networks based on thesynchronous digital hierarchy (SDH). ITU-T Recommendation G.831 (1996)

    20、, Management capabilities of transport networks based onthe synchronous digital hierarchy (SDH). ITU-T Recommendation G.958 (1994), Digital line systems based on SDH for use on opticalfibre cables. ITU-T Recommendation M.60 (1993), Maintenance terminology and definitions. ITU-T Recommendation M.2120

    21、 (1997), Digital path, section and transmission system faultdetection and localisation procedures. ITU-T Recommendation M.3010 (2000), Principles for a telecommunication managementnetwork. ITU-T Recommendation M.3013 (2000), Considerations for a TelecommunicationsManagement Network. ITU-T Recommenda

    22、tion M.3100 (1995), Generic network information model. ITU-T Recommendation Q.811 (1990), Q3-Lower layers protocols. ITU-T Recommendation Q.812 (1990), Q3-Higher layers protocols. ITU-T Recommendation Q.822 (1993), Stage 1, Stage 2 and Stage 3 description for theQ3-interface: performance management.

    23、 ITU-T Recommendation X.680 - X.683 (1997), Specification of Abstract Syntax Notation One(ASN.1). ITU-T Recommendation X.701(1997), Systems management overview. ITU-T Recommendation X.710 (1997), Common management information service. ITU-T Recommendation X.711(1997), Common management information p

    24、rotocol. ITU-T Recommendation X.720 (1992) and Amd.1 (95) and Corr.1 (94), Information technology OSI Structure of Management Information: Management information model. ITU-T Recommendation X.721 (1993) and Corr. 1, 2, 3, and 4, Definition of managementinformation. ITU-T Recommendation X.722 (1992)

    25、and Amd.1 (95), Amd.2 (97), Amd.2 (97) and Corr.1(96), Information technology OSI Structure of management information: Guidelines for thedefinition of managed objects. ITU-T Recommendation X.731 (1992) and Amd.1 (95), Corr.1 (95) and Corr1Amd1 (96), Statemanagement function. ITU-T Recommendation X.7

    26、30 (1992) and Amd.1 (95) and Corr1Amd1 (96), Objectmanagement function. ITU-T Recommendation X.733 (1992) and Corr.1 (94), Amd1 (95), Corr1Amd1 (96) and Corr.2(99), Alarm reporting function. ITU-T Recommendation X.734 (1992) and Corr.1 (94), Amd1 (95), Corr1Amd1 (96) and Corr.2(99), Event report man

    27、agement function. ITU-T Recommendation X.735 (1992) and Amd.1 (95) and Corr1Amd1 (96), Log controlfunction.ITU-T G.774.7 (02/2001) Prepublished version 33. Terms and DefinitionsThis Recommendation uses the terms and definitions defined in Recommendations G.784, G.774and M.3100.4. AbbreviationsFor th

    28、e purpose of this Recommendation, the following abbreviations are used:AU Administrative UnitAUG Administrative Unit GroupBid BidirectionalCTP Connection Termination PointGTP Group Termination PointId IdentifierMS Multiplex SectionNE Network ElementOS Operations SystemOSI Open Systems Interconnectio

    29、nPDH Plesiochronous Digital HierarchyRS Regenerator SectionSDH Synchronous Digital HierarchySPI Synchronous Physical InterfaceTMN Telecommunication Management NetworkTP Termination PointTTP Trail Termination PointTU Tributary UnitTUG Tributary Unit GroupVC-n Virtual Container n5. Lower Order Path Tr

    30、ace and Interface Labelling Information Model5.1 OverviewLabelling of electrical and optical SDH physical interfaces is done using the following managedobject classes which contain the Recommendation M.3100 userlLabel attribute.New Managed Object ClasseslabelledElectricalSPITTPBidirectionallabelledE

    31、lectricalSPITTPSinklabelledElectricalSPITTPSourcelabelledOpticalSPITTPBidirectionallabelledOpticalSPITTPSinklabelledOpticalSPITTPSourceITU-T G.774.7 (02/2001) Prepublished version 4Configuration of the SDH lower order path trace function is done using the following managedobject classes and packages

    32、 which contain attributes to provide access to and control of thej2PathTrace bytes in the SDH lower order path.New Managed Object Classesvc11PathTraceTTPBidirectionalvc11PathTraceTTPSinkvc11PathTraceTTPSourcevc12PathTraceTTPBidirectionalvc12PathTraceTTPSinkvc12PathTraceTTPSourcevc2PathTraceTTPBidire

    33、ctionalvc2PathTraceTTPSinkvc2PathTraceTTPSourcemodifiableVC2PathTraceTTPSinkmodifiableVC2PathTraceTTPSourcemodifiableVC2PathTraceTTPBidirectionalmodifiableVC12PathTraceTTPSinkmodifiableVC12PathTraceTTPSourcemodifiable VC12PathTraceTTPBidirectionalmodifiableVC11PathTraceTTPBidirectionalmodifiableVC11

    34、PathTraceTTPSinkmodifiableVC11PathTraceTTPSourceNew Packagesvc11-2PathTraceSinkPackagevc11-2PathTraceSourcePackage5.2 RequirementsThe information model must satisfy the following requirements: the ability to set and get the value a user specific label associated with an individual electricalSDH phys

    35、ical interface; the ability to set and get the value a user specific label associated with an individual optical SDHphysical interface; the ability to set and get the value of the transmitted path trace identifier for an individual SDHlower order path; the ability to set and get the value of the exp

    36、ected path trace identifier for an individual SDHlower order path; the ability to get the value of the received path trace identifier for an individual SDH lower orderpath.6. Object Classes6.1 Labelled Electrical SPI Trail Termination Point Object ClasseslabelledElectricalSPITTPBidirectional MANAGED

    37、 OBJECT CLASSDERIVED FROMlabelledElectricalSPITTPSink,labelledElectricalSPITTPSource;REGISTERED AS g774-7ObjectClass 1 ;labelledElectricalSPITTPSink MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:electricalSPITTPSink;CHARACTERIZED BYlabelledElectricalSPITTPSinkPkg PACKAGEITU-T G.774.7 (02/2

    38、001) Prepublished version 5BEHAVIOURlabelledElectricalSPITTPSinkPkgBehaviour BEHAVIOURDEFINED AS*This object class provides the ability to label electrical SDHphysical trail termination points.*;ATTRIBUTES“Recommendation M.3100“:userLabel GET-REPLACE;REGISTERED AS g774-7ObjectClass 2 ;labelledElectr

    39、icalSPITTPSource MANAGED OBJECT CLASSDERIVED FROM“Recommendation G.774“:electricalSPITTPSource;CHARACTERIZED BYlabelledElectricalSPITTPSourcePkg PACKAGEBEHAVIOURlabelledElectricalSPITTPSourcePkgBehaviour BEHAVIOURDEFINED AS*This object class provides the ability to label electrical SDHphysical trail

    40、 termination points.*;ATTRIBUTES“Recommendation M.3100“:userLabel GET-REPLACE;REGISTERED AS g774-7ObjectClass 3 ;6.2 Labelled Optical SPI Trail Termination Point Object ClasseslabelledOpticalSPITTPBidirectional MANAGED OBJECT CLASSDERIVED FROMlabelledOpticalSPITTPSink,labelledOpticalSPITTPSource;REG

    41、ISTERED AS g774-7ObjectClass 4 ;labelledOpticalSPITTPSink MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:opticalSPITTPSink;CHARACTERIZED BYlabelledOpticalSPITTPSinkPkg PACKAGEBEHAVIOURlabelledOpticalSPITTPSinkPkgBehaviour BEHAVIOURDEFINED AS*This object class provides the ability to label o

    42、ptical SDHphysical trail termination points.*;ATTRIBUTES“Recommendation M.3100“:userLabel GET-REPLACE;REGISTERED AS g774-7ObjectClass 5 ;labelledOpticalSPITTPSource MANAGED OBJECT CLASSDERIVED FROM“Recommendation G.774“: opticalSPITTPSource;CHARACTERIZED BYlabelledOpticalSPITTPSourcePkg PACKAGEBEHAV

    43、IOURlabelledOpticalSPITTPSourcePkgBehaviour BEHAVIOURDEFINED AS*This object class provides the ability to label optical SDHphysical trail termination points.*;ATTRIBUTESITU-T G.774.7 (02/2001) Prepublished version 6“Recommendation M.3100“:userLabel GET-REPLACE;REGISTERED AS g774-7ObjectClass 6 ;6.3

    44、Virtual Container 11 Path Trace Object Classesvc11PathTraceTTPBidirectional MANAGED OBJECT CLASSDERIVED FROM“Recommendation G.774“:vc11TTPBidirectionalR1,vc11PathTraceTTPSink,vc11PathTraceTTPSource;REGISTERED AS g774-7ObjectClass 7 ;vc11PathTraceTTPSink MANAGED OBJECT CLASSDERIVED FROM “Recommendati

    45、on G.774“:vc11TTPSinkR1;CHARACTERIZED BYvc11-2PathTraceSinkPackage,vc11TTPSinkPathTracePkg PACKAGEBEHAVIOURvc11TTPSinkPathTracePkgBehaviour BEHAVIOURDEFINED AS*This object class supports the SDH lower order path tracefunction. This CLASS shall be instantiated when lower orderpath trace is supported.

    46、*;REGISTERED AS g774-7ObjectClass 8 ;vc11PathTraceTTPSource MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:vc11TTPSource;CHARACTERIZED BYvc11-2PathTraceSourcePackage,vc11TTPSourcePkgR1 PACKAGEBEHAVIOURvc11TTPSourcePkgR1Behaviour BEHAVIOURDEFINED AS*This object class supports the SDH lower o

    47、rder path tracefunction. This CLASS shall be instantiated when lower orderpath trace is supported.*;REGISTERED AS g774-7ObjectClass 9 ;6.4 Virtual Container 12 Object Classesvc12PathTraceTTPBidirectional MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:vc12TTPBidirectionalR1,vc12PathTraceTTPS

    48、ink,vc12PathTraceTTPSource;REGISTERED AS g774-7ObjectClass 10 ;vc12PathTraceTTPSink MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:vc12TTPSinkR1;CHARACTERIZED BYvc11-2PathTraceSinkPackage,vc12TTPSinkPathTracePkg PACKAGEBEHAVIOURvc12TTPSinkPathTracePkgBehaviour BEHAVIOURDEFINED AS*This objec

    49、t class supports the SDH lower order path tracefunction. This CLASS shall be instantiated when lower orderITU-T G.774.7 (02/2001) Prepublished version 7path trace is supported.*;REGISTERED AS g774-7ObjectClass 11 ;vc12PathTraceTTPSource MANAGED OBJECT CLASSDERIVED FROM “Recommendation G.774“:vc12TTPSource;CHARACTERIZED BYvc11-2PathTraceSourcePackage,vc12TTPSourcePkgR1 PACKAGEBEHAVIOURvc12TTPSourcePkgR1Behaviour BEHAVIOURDEFINED AS*This object class supports the SDH lower order


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