SIST EN 301 163-1-1 V1.1.1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.FLRQDOQRVWLNFLMVNHTransmission and Multiplexing (TM); Generic requirements of Asynchronous Transfer Mode (ATM) transport functionality within equipment; Part 1-1: Functional characteristics and equipment performance33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 301 163-1-1 Version 1.1.1SIST EN 301 163-1-1 V1.1.1:2003en01-december-2003SIST EN 301 163-1-1 V1.1.1:2003SLOVENSKI
STANDARD
EN 301 163-1-1 V1.1.1 (1999-05)European Standard (Telecommunications series)Transmission and Multiplexing (TM);Generic requirements of Asynchronous Transfer Mode (ATM)transport functionality within equipment;Part 1-1: Functional characteristicsand equipment performanceSIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)2ReferenceDEN/TM-01016-1-1 (aro99ico.PDF)KeywordsATM, transport, B-ISDN, SDH, transmissionETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frIndividual copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: editor@etsi.frCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999.All rights reserved.SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)3ContentsIntellectual Property Rights.6Foreword.61Scope.72References.73Definitions and abbreviations.93.1Definitions.93.2Abbreviations.94Introduction.115Functional model and processes.125.1The ITU-T Recommendation I.732 functional model.125.1.1Allocation of process to ITU-T Recommendation I.732 functional blocks.135.2EN 301 163-2-1 formal model.185.2.1Symbols and diagrammatic conventions.185.2.2Functional modelling rationale.185.2.2.1Description of NEs - equipment functional specification.185.2.2.2Implementation independence.195.2.2.3Universal representation for management.195.2.3The underlying principles of functional modelling.195.2.3.1The client-server relationship.195.2.3.2Atomic functions and compound functions.205.2.3.3Network functions included in specific equipment.205.2.3.4The functional model and the information model.205.2.4Network layering principles.216Connectivity capabilities.216.1Introduction.216.2Number of connections supported.246.3Point-to-point connections.246.4Point-to-multipoint connections.256.4.1Overview.256.4.2Definitions.256.4.2.1ATM cell multicast.256.4.2.2Spatial multicast.256.4.2.3Logical multicast.256.5Multipoint to point connections.266.5.1Merging is different from multiplexing.266.5.2The Use of merging.266.5.2.1Identification of the information at higher layer(s).266.5.3Merging scheme.266.5.4Bypassing merging.276.6Multipoint to multipoint connections.286.7OAM aspects of multipoint connections.286.8Permanent Virtual Connections (PVC).286.8.1Hard PVCs.286.8.2Soft PVCs.286.9Switched virtual connections.296.10Support for different media upstream/downstream.297OAM functions.297.1OAM naming conventions for ATM.297.2OAM procedures.307.2.1AIS application.307.2.2RDI application.307.2.3CC application.30SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)47.2.4LB application.307.2.5Performance Management application.308Traffic and congestion control functions.309Signalling.3110Resource control functions.3110.1ATM resource requests to be processed by an ATM equipment.3110.1.1Establishing or releasing a VP or VC connection.3110.1.2Modification of the traffic characteristics of an established VP or VC connection.3210.2General ATM equipment features for processing an ATM resource request.3210.2.1Processing of resource request messages.3210.2.2CAC function.3310.3Management, signalling, RM applications.3410.4Detailed description of the CAC function.3410.4.1SAC.3610.4.1.1SLAD.3610.4.1.1.1Description.3610.4.1.1.2Configuration of the SLAD.3710.4.1.2Routing function.3710.4.1.2.1Definitions.3710.4.1.2.2Input parameters of the routing process.3910.4.1.2.3Output parameters of the routing process.3910.4.1.2.4Configuration of the routing function.3910.4.2EAC function.3910.4.2.1Resource of an ATM equipment.3910.4.2.2EAC process.4010.4.2.3Configuration of the EAC function.4010.5Processing steps of an ATM resource request.4110.5.1Request to establish or release an ATM VP or VC connection.4110.5.2Request to modify the traffic characteristics of an existing ATM VP or VC connection.4110.6Method for reducing outages on resource modification.4211Traffic measurement functions.4211.1Traffic information collection.4211.1.1TP usage measurement.4211.1.2ATM cell level procedure performance information collection.4311.1.3VP/VC traffic load information collection.4311.1.4VP/VC UPC/NPC information collection.4311.1.5Call level information collection.4412NE performance.4412.1ATM layer cell transfer performance.4412.2Semi-permanent connection availability.4712.3Call processing performance.4713Availability and reliability.4913.1Availability objectives.4913.1.1General.4913.1.2Parameters.4913.1.3Derivation of MTBF values.5013.2Data integrity.5013.3Upgrade.5113.4Start-up requirements.5114Protections switching on ATM layer.5115EMF.5215.1Co-ordination between Layer Management functions.5215.2Reports to the EMF.5216Timing.5216.1User plane related timing.52SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)516.1.1Timing accuracy.5216.1.2Equipment timing source.5216.1.3Timing of the TP layers.5216.2Management of plane related timing.5317General characteristics.5317.1Management interfaces.5317.2Power supply.5317.3Physical requirements.5317.4Environmental requirements.5317.5Electrical/Optical safety requirements.5317.6Equipment practice.5318Application requirements.54Annex A (informative):AIS application.55A.1AIS application.55A.1.1AIS definition.55A.1.2AIS flow.55A.1.3AIS generation control.57Bibliography.60History.61SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)6Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmissionand Multiplexing (TM).The present document is part 1 of a multi-part EN covering the generic requirements of Asynchronous Transfer Mode(ATM) transport functionality within equipment, as identified below:Part 1:"Functional characteristics and equipment performance";Part 2:"Functional model for the transfer and layer management plane".National transposition datesDate of adoption of this EN:23 April 1999Date of latest announcement of this EN (doa):31 July 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 January 2000Date of withdrawal of any conflicting National Standard (dow):31 January 2000SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)71ScopeThe purpose of the present document is to provide specifications for ATM equipment to be used in the ETSI region.These specifications seek to define the processes associated with ATM rather than specific equipment types. Suchspecifications will ensure compatibility between equipment by identifying which functions within a process aremandatory for interworking and which can be considered as truly optional. It is not the intention to preventmanufacturers or procurers from following an alternative specification, but the consequences should become clear fromthe present document.The ETSI ATM Equipment specification will be in two parts. The first part (the present document) being moreconceptual, producing a list of functions and processes and some guidance to the ITU model and the ETSI functionalmodel. The second part (EN 301 163-2-1 [18]) is a formal representation of transfer and layer management functions inthe form of a library of atomic functions. This will provide flexibility since many equipment types may be defined byusing these atomic functions in different combinations.The specification will take advantage of the work done in ITU but will take the work further with an ETSI view. Thismeans: the identification of ITU options that has to be mandatory in the ETSI region, deletion of options not requiredfor the ETSI region, creation of new or revised descriptions where necessary, identification of guideline or benchmarkperformance parameters for classes of equipment.2ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, the latest version applies.· A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]ATMF TM v4.0: "Integrated Local Management Interface (ILMI) Specification v4.0".[2]ETS 300 019-1-0: "Equipment Engineering (EE); Environmental conditions and environmentaltests for telecommunications equipment; Part 1-0: Classification of environmental conditions;Introduction".[3]ETS 300 119-1: "Equipment Engineering (EE); European telecommunication standard forequipment practice; Part 1: Introduction and terminology".[4]ETS 300 132-1: "Equipment Engineering (EE); Power supply interface at the input totelecommunications equipment; Part 1: Operated by alternating current (ac) derived from directcurrent (dc) sources".[5]ETS 300 132-2: "Equipment Engineering (EE); Power supply interface at the input totelecommunications equipment; Part 2: Operated by direct current (dc)".[6]ETS 300 150: "Transmission and Multiplexing (TM); Protocol suites for Q interfaces formanagement of transmission systems".[7]ETS 300 253: "Equipment Engineering (EE); Earthing and bonding of telecommunicationequipment in telecommunication centres".[8]ETS 300 301: "Broadband Integrated Services Digital Network (B-ISDN); Traffic control andcongestion control in B-ISDN".SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)8[9]ETS 300 304: "Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); SDHinformation model for the Network Element (NE) view".[10]ETS 300 386-1: "Equipment Engineering (EE); Telecommunication network equipment; Electro-Magnetic Compatibility (EMC) requirements; Part 1: Product family overview, compliance criteriaand test levels".[11]EN 300 386-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM);Telecommunication network equipment; ElectroMagnetic Compatibility (EMC) requirements;Part 2: Product family standard".[12]ETS 300 404: "Broadband Integrated Services Digital Network (B-ISDN); B-ISDN Operation AndMaintenance (OAM) principles and functions".[13]EN 300 417: "Transmission and Multiplexing (TM)".[14]EN 300 417-1-1: "Transmission and Multiplexing (TM); Generic functional requirements forSynchronous Digital Hierarchy (SDH) equipment; Part 1–1: Generic processes and performance".[15]EN 300 417-6-1: "Transmission and Multiplexing (TM); Generic requirements of transportfunctionality of equipment; Part 6–1: Synchronous layer functions".[16]EN 300 462-1: "Transmission and Multiplexing (TM); Generic requirements for synchronizationnetworks; Part 1: Definitions and terminology for synchronization networks".[17]ETS 300 469: "Broadband Integrated Services Digital Network (B-ISDN); Asynchronous TransferMode (ATM); Management of the network element view [ITU–T Recommendation I.751(1996)]".[18]EN 301 163–2–1: "Transmission and Multiplexing (TM); Generic requirements of AsynchronousTransfer Mode (ATM) transport functionality within equipment; Part 2–1: Functional model forthe transfer and layer management plane".[19]ITU-T handbook: "Handbook on Quality of Service and Network Performance".[20]ITU-T Recommendation E.862: "Dependability planning of telecommunication networks".[21]ITU Recommendation I.150: "B-ISDN asynchronous transfer mode functional characteristics".[22]ITU-T Recommendation I.321: "B-ISDN protocol reference model and its application".[23]ITU-T Recommendation I.326: "Functional architecture of transport networks based on ATM".[24]ITU-T Recommendation I.353: "Reference events for defining ISDN and B-ISDN performanceparameters".[25]ITU-T Recommendation I.356: "B-ISDN ATM layer cell transfer performance".[26]ITU-T Recommendation I.357: "B-ISDN semi-permanent connection availability".[27]ITU-T Recommendation I.358: "Call processing performance for switched Virtual ChannelConnections (VCCs) in B-ISDN".[28]ITU-T Recommendation I.371: "Traffic control and congestion control in B-ISDN".[29]ITU-T Recommendation I.432: "B-ISDN user-network interface - Physical layer specification".[30]ITU-T Recommendation I.432.1: "B-ISDN user-network interface - Physical layer specification:General characteristics".[31]ITU-T Recommendation I.610: "B-ISDN operation and maintenance principles and functions".[32]ITU-T Recommendation I.731: "Types and general characteristics of ATM equipment".[33]ITU-T Recommendation I.732: "Functional characteristics of ATM equipment".SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)9[34]ITU-T Recommendation G.803: "Architecture of transport networks based on the synchronousdigital hierarchy (SDH)".[35]ITU-T Recommendation G.805: "Generic functional architecture of transport networks".[36]ITU-T Recommendation G.911: "Parameters and calculation methodologies for reliability andavailability of fibre optic systems".[37]ITU-T Recommendation O.191: "Equipment to assess ATM layer cell transfer performance".[38]ITU-T Recommendation Q.2100: "B-ISDN signalling ATM adaptation layer (SAAL) overviewdescription".[39]ITU-T Recommendation X.721: "Information technology - Open Systems Interconnection -Structure of management information: definition of management information".[40]IEC 825-2: "Safety of laser products - Part 2: Safety of optical fibre communications systems".3Definitions and abbreviations3.1DefinitionsFor the purposes of the present document, the following terms and definitions apply.ATM resource request:- request to establish or release a given VP or VC connection;- request for modifying the traffic characteristics of an already established VP or VC connectionHard PVC: traditional ATM Permanent Virtual Connection that is established/released upon a request initiated by amanagement request procedure (i.e. all nodes supporting the connections need to be instructed by the networkmanagement)Soft PVC: soft PVC is a Permanent Virtual Connection where the establishment within the network is done bysignalling. By configuration, the switching system at one end of the soft PVC (VPC or VCC) initiates the signalling forthisAdditional functional definitions are described in EN 300 417-1-1 [14].3.2AbbreviationsFor the purposes of the present document, the following abbreviations apply:AALATM Adaptation LayerABRAvailable Bit RateABTATM Block TransferADActivation/DeactivationAEMFATM Equipment Management FunctionAIAdapted InformationAISAlarm Indication SignalATCATM Transport CapabilityATMAsynchronous Transfer ModeBBCCBroadband Bearer Channel ControlB-ISUPBroadband ISDN Users PartCACConnection Admission ControlCCContinuity CheckCDVCell Delay VariationCERCell Error RatioCICharacteristic InformationCLPCell Loss PriorityCLRCell Loss Ratio (CLR0, CLR0+1, CLR1)SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)10CMRCell Misinsertion RateDBRDeterministic Bit RateDSS2Digital Subscriber Signalling No. 2EACEquipment Admission ControlEFCIExplicit Forward Congestion IndicationEFSEquipment Functional SpecificationEMFEquipment Management Functione-to-eEnd-to-EndF4E OAMF4 End-to-End OAMF4S OAMF4 Segment OAMF5E OAMF5 End-to-End OAMF5S OAMF5 Segment OAMFITFailure In TimeFMFault ManagementGFCGeneric Flow ControlHECHeader Error ControlIAMInitial Address Message (signalling)IWFInterWorking FunctionLBLoopbackLCDLoss of Cell DelineationLOCLoss Of ContinuityMCFMessage Communication FunctionMCTDMean Cell Transfer DelayMDTMean Down TimeMTBFMean Time Between FailuresMTBOMean Time Between OutagesMTTFMean Time To FailureNENetwork ElementNMSNetwork Management SystemNNINetwork Node InterfaceNPCNetwork Parameter ControlOAMOperations, Administration and MaintenanceOIOutage IntensityOSOperations SystemPCRPeak Cell RatePDUProtocol Data UnitPMPerformance Management/Performance MonitoringPOHPath OverheadPTIPayload Type IdentifierPVCPermanent Virtual ConnectionQoSQuality of ServiceRDIReceive Defect IndicationRDFRate Decrease FactorRIFRate Increase FactorRMResource ManagementSACService Admission ControlSAALSignalling AALSECBRSeverely Errored Cell Block RatioSeg.SegmentSLADService Level ADmissionSPSpecific ProcessSSFServer Signal FailSSUSynchronization Supply UnitSTDSource Traffic DescriptorSVCSwitched Virtual ConnectionTBDTo Be DeterminedTPTransmission PathTMTransmission MediaUNIUser Network InterfaceUPCUsage Parameter ControlSIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)11VCVirtual ChannelVC-4Virtual Container level 4VCCVirtual Channel ConnectionVCIVirtual Channel IdentifierVoDVideo on DemandVPVirtual PathVPCVirtual Path ConnectionVPIVirtual Path Identifier4IntroductionThe purpose of the present document is to provide specifications for Asynchronous Transfer Mode (ATM) equipment tobe used in the ETSI region. It provides an overview of the functions and processes of ATM equipment. The approach ofthe present document is to have a library of functions and concepts that can be joined together as required to form manydifferent equipment types for many different usages. Where possible, the present document will illustrate with exampleshow these functions and processes can be modelled using the atomic functions defined in EN 301 163-2-1 [18].The document has the following themes with some themes relating to more than one clause (For a complete list of clausesee the table of contents).The themes are:-Modelling techniques and a summary of the approaches in ITU-T Recommendation I.732 [33] and in ETSI TM1;-Connectivity capabilities;-OAM functions;-Traffic management;-Network Element (NE) performance;-Equipment Management Function (EMF);-Timing (the requirements for synchronization);-General equipment characteristics (physical & environment requirements).As the present document is very much linked to the state of the art for ATM technology and its philosophy, some of theclauses are more stable than others.SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)125Functional model and processesThis clause describes the functional modelling technique used in ETSI TM1 (EN 300 417 [13], and the presentdocument). In order to provide an introduction the clause provides information on the work done inITU-T Recommendation I.732 [33]. The present document has a different treatment to ETSI TM1's model, but shouldbe seen as complimentary rather than duplication since the level of detail in ITU-T Recommendation I.732 [33] is muchless but it concentrates more on ordering and sequencing of the functions.5.1The ITU-T Recommendation I.732 functional modelThis subclause provides a short description of the main broad functional areas of an ATM NE according toITU-T Recommendation I.732 [33]. Detailed information is provided by ITU-T Recommendations I.731 [32] andI.732 [33].The main broad functional areas of an ATM NE are:-the transfer functions, corresponding to the physical layers, ATM layer and adaptation to higher layers;-the layer management functions, manages in real time the transfer functions (e.g. traffic enforcement),processes the information from the transfer functions (e.g. OAM processing) and Co-ordination Function; andsends information or instructions to the transfer functions or Co-ordination function;-the signalling applications, responsible for the handling of the UNI and NNI signalling messages. The extent ofthis function is for further study (see clause 9);-the system management, which notably supports the Q3 interface towards the Network Management System(NMS). It includes the five classical management areas (configuration, fault, performance, accounting andsecurity management). This entity is called the Asynchronous EMF;-the Co-ordination Function (CoF) supplies:a)the co-ordination between the relevant Layer Management functions at the different layers when required;b)the processing of the requests for resources through the Signalling Applications, the EMF (Q3 interface), andthe Resource Management (RM) procedure (Connection Admission Control (CAC)).-the InterWorking Function (IWF), which provides interworking between ATM based and other networkservices supported by the ATM equipment (e.g. Frame Relay, N-ISDN);-the Message Communication Function (MCF), which performs the exchange of EMF messages with the NMS,based on an ATM or X.25 transport stack;-the Timing function, which deals with the actions required to synchronize the equipment interfaces to a clocksource (internal or external) when required;-Protection Switching and restoration. ATM layer based protection switching and restoration capabilities inATM NEs is for further study in ITU-T Recommendations I.731 [32] and I.732 [33].Application-specific functions may also exist in the equipment. The ATM Adaptation Layer (AAL) functions enhancethe service provided by the ATM Layer functions to enable the service-specific higher layers to use the service-independent ATM layer. For example in the case of a MPEG-2 video server, specific stacks exist to carry a video signalon an AAL.-One particular type of AAL service user is the signalling entity wishing to communicate with a peer entity. Eachof these entities would require that functions are provided above the common part of the AAL specificallydesigned to facilitate this task. The AAL functions necessary to support signalling should be in accordance withITU–T Recommendation Q.2100 [38], B-ISDN Signalling AAL (SAAL).SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)13Figure 1 provides the overall organization of an ATM equipment, with respect to the previous description.The following clauses provide tables containing a detailed description of the Transfer, the Layer Management and theCo-ordination functions for an ATM NE. Although the following clauses are limited to the ATM aspect, it should bekept in mind that other components exist in an ATM equipment (e.g. SDH-based interfaces and associated managementfunctions).AEMFSignallingApplicationsTransmission Media (TM) LayersTransmission Path (TP) LayerATM Virtual Path (VP) LayerATM Virtual Channel (VC) LayerAAL LayerManagementVC LayerManagementVP LayerManagementTP LayerManagementTM LayersManagementCoFMCFTo CoFATM interfacesExternaltiminginterfaceQ3FTimingAALSAALAALINTERWORKINGFUNCTIONNon ATMinterfaceOtherApplicationsLayerManagement ofHigher LayersNOTE:In ETSI environment, the block ATM Equipment Management Function (AEMF) is called EMF.Figure 1: General Overview of ATM Equipment according to ITU-T Recommendation I.731 [32]5.1.1Allocation of process to ITU-T Recommendation I.732 functionalblocksThe Table 1 and Table 2 mainly cover the transfer plane. Transfer functions are restricted to insertion, extraction ofcells, writing or reading of fields and other operations concerning a set of cells (such as multiplexing anddemultiplexing, control, shaping). The tables given below list and arrange these functions and their function types (I, E,W, R, Oth which represent respectively: Insertion, Extraction, Writing, Reading and Other) for B to A and A to B flows.The list is numbered for further identification purpose. The ITU-T Recommendation I.732 [33] blocks are indicated inthe first column.SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)14Table 1: Virtual Channel (VC) Level functionsITU-TRecommendationI.732LEVELProcessITU-T Recommendation I.732B to A directionITU-T Recommendation I.732A to B directionVC_T1.User indication(W) if AAL 5, a bit of Payload TypeIdentifier (PTI) field is used forsignalling the end of message(R) if AAL 5, a bit of PTI field isused for signalling the end ofmessage2.F5 End-to-EndOAM (F5EOAM) PM(E) of F5E OAM performance cells- End of OAM Virtual ChannelConnection (VCC) performance(I) of F5E OAM performance cells -Start of OAM VCC performance3.F5E OAM CC(E) of F5E OAM Continuity Check(CC) cells(I) of F5E OAM CC cells4.F5E OAMActivation/Deactivation (AD)(E) of F5E OAM AD cells(I) of F5E OAM AD cells5.F5 OAMReceive DefectIndication(RDI)(E) of F5 OAM RDI cells(I) of F5 OAM RDI cells6.F5 OAM AlarmIndicationSignal (AIS)(E) of F5 OAM AIS7.F5E OAM LBat a sourcepoint(E) of F5E OAM LoopBack (LB)cell(I) of F5E OAM LB cell8.F5E OAM LBat LB point(E) of F5E OAM LB cell(I) of LBed F5E OAM LB cellVC_C9.MatrixConnection(Oth) interconnection of VC linksVCL_T10.F5 OAM AIS(I) of F5 OAM AIS - Extraction atthe VCC termination(I) of F5 OAM AIS - Extraction atthe VCC termination11.F5 OAMAIS/RDI non-intrusivemonitoring(R) of F5 OAM AIS/RDI cells for e-to-e and seg. AIS/RDI processingand reporting(R) of F5 OAM AIS/RDI cells for e-to-e and seg. AIS/RDI processingand reporting12.F5 Segment(Seg.) OAM(F5S OAM) CC(I/E) of F5S OAM CC cells(E/I) of F5S OAM CC cells13.F5S OAM CCnon-intrusivemonitoring(Oth) detection of cell arrival(Oth) detection of cell arrival14.F5S OAM AD(I/E) of F5S OAM AD cells(E/I) of F5S OAM AD cells15.F5 OAM LB ata source point(I) of F5 OAM LB cell or(R) [or optionally (E)] of F5 OAMLB cell(I) of F5 OAM LB cell or(R) [or optionally (E)] of F5 OAMLB cell16.F5S OAM LBat LB point(R) [or optionally (E)] of F5S OAMLB cell or(I) of loopbacked F5S OAM LB cell(R) [or optionally (E)] of F5S OAMLB cell or(I) of loopbacked F5S OAM LB cell17.F5S OAM LBat seg.termination(E) and discarding of F5S OAM LBcells at OAM seg. termination(E) and discarding of F5S OAM LBcells at OAM seg. termination18.F5 RM(R) of F5 RM cells and(E) discarding or (W) setting ofspecific fields(I) of F5 RM cells19.F5S OAM PM(E/I) of F5S OAM performancecells(I/E) of F5S OAM performancecells20.F5 OAM PMnon-intrusivemonitoring(R) of F5 OAM performance cells for e-to-e and seg. performance processingand reporting(R) of F5 OAM performance cells for e-to-e and seg. performance processingand reporting21.Shaping(Oth) shaping of the ATM complianttraffic(Oth) shaping of the ATM complianttrafficSIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)1522.UsageParameterControl(UPC)/NetworkParameterControl (NPC)(Oth) compliance checking +(E/W) corrective action if activatedITU-TRecommendationI.732LEVELProcessITU-T Recommendation I.732B to A directionITU-T Recommendation I.732A to B direction23.VC usageMeasurement(Oth) detection and count of incomingcell arrival(Oth) detection and count of outgoingcells24.Explicit ForwardCongestionIndication (EFCI)setting(W) setting of the EFCI bit of the PTIfield25.Virtual ChannelIdentifier (VCI)setting(W) VCI field setting (see Note)VirtualPath(VP)/VC_A26.VC mux(Oth) demultiplexing of VCs accordingto the VCI values(Oth) VC multiplexing27.Congestion(E) and discarding of cells according toCell Loss Priority (CLP) values or otherparameters(E) and discarding of cells according toCLP values or other parameters28.Metasignalling(E) of metasignalling cells(I) of metasignalling cells29.VCI verification(R) of VCI field and (E) and discardingof cells with invalid VCINOTE:The VCI setting in ITU-T Recommendation I.732 [33] (Version 1995) was located in the VCL_Tblock. ITU-T Recommendation I.326 [23] as well as EN 301 163-2-1 locates this function in theAvp/Avc Adaptation block.SIST EN 301 163-1-1 V1.1.1:2003

ETSIEN 301 163-1-1 V1.1.1 (1999-05)16Table 2: Virtual Path (VP) level functionsITU-TRecomendationI.732 LEVELFUNCTIONITU-T Recommendation I.732 Bto A directionITU-T Recommendation I.732 Ato B directionVP_T30.F4 End-to-EndOAM (F4EOAM) PM(E) of F4E OAM performance cells(I) of F4E OAM performance cells31.F4E OAM CC(E) of F4E OAM CC cells(I) of F4E OAM CC cells32.F4E OAM AD(E) of F4E OAM AD cells(I) of F4E OAM AD cells33.F4 OAM RDI(E) of F4 OAM RDI cells(I) of F4 OAM RDI cells34.F4 OAM AIS(E) of F4 OAM AIS35.F4E OAM LBat a sourcepoint(E) of F4E OAM LB cell(I) of F4E OAM LB cell36.F4E OAM LBat LB point(E) of F4E OAM LB cell(I) of loopbacked F4E OAM LB cellVP_C37.MatrixConnection(Oth) interconnection of VP linksVPL_T38.F4 OAM AIS(I) of F4 OAM AIS(I) of F4 OAM AIS39.F4 OAMAIS/RDI non-intrusivemonitoring(R) of F4 OAM AIS/RDI cells for e-to-e and seg. AIS/RDI processingand reporting(R) of F4 OAM AIS/RDI cells for e-to-e and seg. AIS/RDI processingand reporting40.F4 Seg. OAM(F4S OAM) CC(I/E) of F4S OAM CC cells(E/I) of F4S OAM CC cells41.F4S OAM CCnon-intrusivemonitoring(Oth) detection of cell arrival(Oth) detection of cell arrival42.F4S OAM AD(I/E) of F4S OAM AD cells(E/I) of F4S OAM AD cells43.F4 OAM LB ata source point(I) of F4 OAM LB cell or(R) [or optionally (E)] of F4 OAMLB cell(I) of F4 OAM LB cell or(R) [or op
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