SIST EN 300 324-1 V2.1.1:2005

• Abstract:

  The work to be done is included as Annex D in the V5.2 resolution meeting (PE9925)

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.30 - Switching and signalling systems
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EN 300 324-1 V2.1.1 (1999-12) - V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 1: V5.1 interface specification

SIST EN 300 324-1 V2.1.1:2005 is the SIST adoption of ETSI EN 300 324-1 Version 2.1.1 for the V5.1 interface between an Access Network (AN) and a Local Exchange (LE). It specifies the electrical, physical, procedural and protocol requirements for carrying PSTN and ISDN basic access services over that interface, for telecom equipment designers, network operators and test teams.

What does SIST EN 300 324-1 V2.1.1:2005 specify?

SIST EN 300 324-1 V2.1.1:2005 specifies the V5.1 interface between an AN and an LE. Its scope covers analogue telephone access, ISDN basic access, and other analogue or digital accesses for semi-permanent connections without outband signalling, with flexible bearer-channel allocation and no concentration capability in the AN.

The standard is organized into clauses 1 to 14 and annexes A to P. The main clauses cover interface requirements, services and architecture, control and provisioning, protocol architecture and multiplexing, LAPV5 sublayers, AN frame relay, PSTN signalling, user-port control, maintenance, and re-provisioning.

Annex	What it covers
A	Requirements for supporting the Permanent Line (PL) capability through an ISDN-BA
B	Assumptions and requirements for semi-permanent leased lines
C	Basic requirements of the system management functions in AN and LE
D	Use of protocol information elements for national PSTN protocols
E	Service scenarios, architecture and functional definition of access arrangements with AN at the LE
F	The upgrade concept from V5.1 to V5.2
G	Function element primitives used in the V5 PSTN protocol
H	PSTN protocol notes and information-flow diagrams
J	AN requirement for pulse dialling
K	L3 error detection procedure
L	SDL diagrams
M	Structures used in the V5.1 interface
N	Protocol architecture for PSTN and ISDN user-port control
P	Items identified to be pre-defined or provisioned

What are the key requirements of SIST EN 300 324-1 V2.1.1:2005?

SIST EN 300 324-1 V2.1.1:2005 is built around a 2048 kbit/s V5.1 interface with defined physical behaviour, framing, signalling, and management procedures. In practice, this means implementers must match the transport layer, the user-port control rules, and the protocol state machines at both the AN and LE.

Physical and L1 requirements

Clause 4 requires the interface to use a single 2048 kbit/s digital interface and to conform to the relevant electrical and physical characteristics. It includes the expected line code, pulse shape, return loss, jitter, wander and balance behavior, so equipment vendors must verify the line interface against those limits.

Clause 5 requires the procedural interface to follow the 2048 kbit/s frame and CRC-4 procedures from the referenced transmission standards. In practice, this is what keeps frame alignment, error reporting and basic transport supervision compatible with the rest of the network.

Supported service types

Clause 6 identifies the service families that pass through V5.1: PSTN on-demand services, ISDN Basic Access (ISDN-BA), Permanent Line (PL) capability, semi-permanent leased lines, and permanent leased line services. This matters because the same interface must support switched service, leased service and access-specific routing decisions.

Control, provisioning and multiplexing

Clause 7 separates call control in the LE from access management in the AN, with finite state machines (FSMs) and protocol entities on both sides. Clause 8 then defines communication channels, communication paths, timeslot use, C-channel allocation, multiplexing, congestion control and blocking behavior, so the interface can carry several protocol flows without mixing them.

LAPV5 and AN frame relay

Clauses 9 and 10 define the LAPV5-EF and LAPV5-DL framing rules, addresses, transparency, invalid-frame handling, multiple-frame operation, TEI management, timers and supervision. Clause 11 defines the AN frame relay sublayer for relaying ISDN D-channel frames, which is what lets the AN pass user-layer traffic with minimal processing.

PSTN signalling and user-port control

Clause 13 specifies PSTN signalling messages such as ESTABLISH, SIGNAL, DISCONNECT and PROTOCOL-PARAMETER, together with information elements, error handling, path initiation and state tables. Clause 14 defines the control protocol for ISDN and PSTN user ports, including blocking, unblocking, activation, maintenance indications and V5.1 re-provisioning.

What terms does SIST EN 300 324-1 V2.1.1:2005 define?

• Access Network (AN) - The system between the LE and the user that replaces part or all of the local line distribution network.
• Local Exchange (LE) - The exchange where user lines are terminated via an AN.
• Communication channel (C-channel) - A 64 kbit/s timeslot on the V5.1 interface that carries one or more communication paths.
• Communication path (C-path) - The specific information flow carried by a layer 2 link or by ISDN data associated with user ports.
• Permanent Line (PL) capability - The ability of an ISDN basic access to use one or both B-channels for permanent leased line service.
• Permanent Leased Line (PLL) - A permanently established connection routed through a dedicated line network separate from the switched network.
• provisioned - A parameter that can be changed and verified through the Q interface.
• pre-defined - A parameter that is not supplied through the Q interface but is built into the equipment or set locally.

Who uses SIST EN 300 324-1 V2.1.1:2005?

SIST EN 300 324-1 V2.1.1:2005 is used by telecom equipment designers and integrators building AN and LE equipment for V5.1 networks. It is also used by network operators and system management teams that configure user ports, provision services, and handle blocking, activation and maintenance.

Test laboratories and conformance teams use it to design protocol and interface tests, especially for physical layer behaviour, LAPV5 procedures, PSTN signalling, and user-port control. It is also relevant to teams managing PSTN, ISDN and leased-line access services over a shared access network.

What changed in SIST EN 300 324-1 V2.1.1:2005 from the previous edition?

The introduction lists these major changes from the first edition:

• Amendment A1 was incorporated.
• Clause 3 gained additional definitions.
• Clause 6 clarified permanent leased line service.
• Subclause 8.7.4 added flow control to LAPV5-DL.
• Subclauses 13.3 and 14.4 added conditional information elements for PSTN and control protocols.
• Subclauses 13.4.7.11 to 13.4.7.13 added three information elements to the V5 PSTN protocol.
• Tables 29 and 30 were updated to improve message flow during conditions such as port unblocking.
• Annex C was aligned with the V5.2 procedures.
• The SDL diagrams were updated to reflect the system-management text in Annex C.

Which standards are used with SIST EN 300 324-1 V2.1.1:2005?

SIST EN 300 324-1 V2.1.1:2005 relies on transmission, ISDN, signalling and management standards to define its interface behaviour. The most important ones are:

• ETS 300166 and ETS 300167 - define the 2048 kbit/s physical and framing basis.
• ETS 300012 and ETS 300125 - provide ISDN basic user-network layer 1 and layer 2 context.
• ETS 300297 - supports ISDN basic access transmission.
• ETS 300403-1 - provides the DSS1 signalling context for ISDN basic call control.
• EN 300376-1 / ETS 300376-2 - define Q3 configuration management at the AN.
• EN 300377-1 / ETS 300377-2 - define Q3 configuration management at the LE.
• EN 300378-1 and EN 300379-1 - define fault and performance management at AN and LE.
• ETR 150 - gives PSTN protocol mapping examples.
• EN 300324 (all parts) and EN 300347 (all parts) - are the companion V5.1 and V5.2 interface series.

What does the SIST EN 300 324-1 V2.1.1:2005 document contain?

The document contains the interface rules, frame structures, message formats, state tables and procedures needed to implement V5.1 access. Clause 4 and Clause 5 include the transport-layer requirements and CRC-4 behaviour; Clauses 9 and 10 describe the LAPV5 frame formats; and Clause 13 gives the PSTN message sets, information elements and call-control procedures.

It also contains management and recovery material for operational use, including user-port blocking, start/stop traffic indications, re-provisioning and maintenance reporting. Annex D gives detailed use of protocol information elements for national PSTN protocols, Annex K explains the L3 error-detection procedure with counters and timers, and Annex L provides SDL diagrams for the defined procedures.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vmesniki V pri digitalnih krajevnih centralah (LE) – Vmesnik V5.1 za podporo dostopovnega omrežja (AN) – 1. del: Specifikacija vmesnika V5.1V interfaces at the digital Local Exchange (LE); V5.1 interface for the support of Access Network (AN); Part 1: V5.1 interface specification33.040.30Komutacijski in signalizacijski sistemSwitching and signalling systemsICS:Ta slovenski standard je istoveten z:EN 300 324-1 Version 2.1.1SIST EN 300 324-1 V2.1.1:2005en01-januar-2005SIST EN 300 324-1 V2.1.1:2005SLOVENSKI
STANDARD
ETSIEN300324-1V2.1.1(2000-04)EuropeanStandard(Telecommunicationsseries)VinterfacesatthedigitalLocalExchange(LE);V5.1interfaceforthesupportofAccessNetwork(AN);Part1:V5.1interfacespecificationSIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)2ReferenceREN/SPAN-09106-1KeywordsVinterface,V5interface,LE,ANETSIPostaladdressF-06921SophiaAntipolisCedex-FRANCEOfficeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/[e-mail]ETSIdeliverablecanbedownloadedfromhttp://www.etsi.orgIfyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]Ideliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.CopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)3ContentsIntellectualPropertyRights.13Foreword.13Introduction.141Scope.152References.163Definitionsandabbreviations.173.1Definitions.173.2Abbreviations.204Electricalandphysicalinterfacerequirements.215Proceduralinterfacerequirements.266Servicesandarchitectureaspectsandrequirements.296.1On-demandservices.296.1.1PSTN.296.1.2ISDNBasicAccess(ISDN-BA).296.2PermanentLine(PL)capability.306.3Semi-permanentleasedline.306.4Permanentleasedlineservices.317Controlandprovisioning.317.1Controlprinciples.317.1.1Generalrequirementsandassumptions.317.1.2ControlofISDNuserportforthePLcapability.337.1.2.1Statementsandassumptions.337.1.2.2ISDNandPLcapability.337.1.2.3DecouplingofANandLEFSM.337.2Provisioningstrategyandrequirements.337.2.1General.337.2.2Provisioningrequirements.338Protocolarchitectureandmultiplexingstructure.358.1Functionaldescription.358.2ProtocolrequirementsforPSTNandISDN.368.3Timeslots.378.4TimeslotallocationforC-channels.378.5L2sublayeringandmultiplexingonC-channels.388.6L3multiplexing.388.7Congestioncontrol.388.7.1Flowcontrolendtoend.388.7.2CongestioncontrolontheV5.1interface.388.7.3BlockingofISDNuserportsatL2.388.7.4FlowcontrolusingLAPV5-DLmechanisms.399EnvelopeFunctionsublayerofLAPV5(LAPV5-EF).399.1Framestructureforpeer-to-peercommunication.399.1.1General.399.1.2Flagsequence.399.1.3Interframetimefill.399.1.4Envelopefunctionaddressfield.399.1.5Envelopeinformationfield.409.1.6Transparency.409.1.7FCS.409.1.8Formatconvention.409.1.9Invalidframes.40SIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)49.1.10Frameaborts.419.2Formatoffieldsfordatalinkenvelopepeer-to-peercommunication.419.2.1Envelopefunctionaddressfieldformat.419.2.2Addressfieldvariables.419.2.2.1Addressfieldextensionbit.419.2.2.2EFaddr.4110DatalinksublayerofLAPV5(LAPV5-DL).4110.1Framestructureforpeer-to-peercommunication.4110.1.1General.4110.1.2Linkaddressfield.4210.1.3Controlfield.4210.1.4Informationfield.4210.1.5Formatconvention.4210.2Invalidframes.4210.3Elementsofproceduresandformatsoffieldsfordatalinksublayerpeer-to-peercommunication.4210.3.1Linkaddressfieldformat.4210.3.2Linkaddressfieldvariables.4310.3.2.1Addressfieldextension(EA)bit.4310.3.2.2Command/responsefieldbit.4310.3.2.3V5DLaddr.4310.3.3Controlfieldformats.4310.3.4Controlfieldparametersandassociatedstatevariables.4310.3.5Frametypes.4310.4Definitionofthepeer-to-peerproceduresofthedatalinksublayer.4310.4.1General.4310.4.2ProcedurefortheuseofthePoll/Final(P/F)bit.4510.4.3TerminalEndpointIdentifier(TEI)managementprocedures.4510.4.4Automaticnegotiationofdatalinklayerparameters.4510.4.5Proceduresforestablishmentandreleaseofmultipleframeoperation.4510.4.5.1Establishmentofmultipleframeoperation.4510.4.5.1.1General.4510.4.5.1.2Establishmentprocedures.4610.4.5.1.3ProcedureonexpiryoftimerT200.4610.4.5.2Informationtransfer.4710.4.5.3Terminationofmultipleframeoperation.4710.4.5.4Link-not-establishedstate.4710.4.5.5Collisionofunnumberedcommandsandresponses.4710.4.5.5.1Identicaltransmittedandreceivedcommands.4710.4.5.5.2Differenttransmittedandreceivedcommands.4710.4.5.6UnsolicitedDMresponseandSABMEcommand.4710.4.6Proceduresforinformationtransferinmultipleframeoperation.4810.4.7Re-establishmentofmultipleframeoperation.4810.4.7.1Criteriaforre-establishment.4810.4.7.2Procedures.4810.4.8Exceptionconditionreportingandrecovery.4810.4.9Listofsystemparameters.4910.4.10Datalinkmonitorfunction.4910.4.10.1General.4910.4.10.2Datalinklayersupervisioninthemultiple-frame-establishedstate.4910.4.10.3Connectionverificationprocedures.4910.4.11PSTNandcontroldatalinkFSMandrequirements.4910.4.11.1General.5010.4.11.2DatalinkFSM.5111ANframerelaysublayer.5211.1General.5211.2Invalidframes.5211.3DetaileddescriptionoftheANframerelayfunction.5311.3.1FramereceivedfromLE.5311.3.2FramereceivedfromISDNuserport.53SIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)512Sublayer-to-sublayercommunicationandMF.5412.1LAPV5-EFtoLAPV5-DLcommunication.5412.2LAPV5-DLtoLAPV5-EFcommunication.5412.3AN-FRtoLAPV5-EFcommunication.5412.4LAPV5-EFtoAN-FRcommunication.5413PSTNsignallingprotocolspecificationandL3multiplexing.5413.1General.5413.1.1Introduction.5413.1.2Separationofresponsibilities.5513.1.3NationalspecificPSTNsignalinformationelements.5513.2PSTNprotocolentitydefinition.5613.2.1DefinitionofPSTNpathstatesandexplanation.5613.2.1.1PathstatesintheAN(AN(PSTN)).5613.2.1.2PathstatesintheLE(LE(PSTN)).5613.2.2DefinitionofPSTNprotocolprimitives,messagesandtimers.5713.3PSTNprotocolmessagedefinitionandcontent.5813.3.1Establish.5913.3.2EstablishACK.5913.3.3Signal.6013.3.4SignalACK.6013.3.5Status.6113.3.6Statusenquiry.6113.3.7Disconnect.6113.3.8Disconnectcomplete.6113.3.9Protocolparameter.6213.4Generalmessageformatandinformationelementcoding.6213.4.1Overview.6213.4.2Protocoldiscriminator.6313.4.3L3addr.6313.4.4Messagetype.6313.4.5Codingofotherinformationelements.6413.4.6Singleoctetinformationelements.6513.4.6.1Pulsenotification.6513.4.6.2Line-information.6513.4.6.3State.6513.4.6.4Autonomous-signalling-sequence.6613.4.6.5Sequence-response.6613.4.7Informationelementswithvariablelengthformat.6613.4.7.1Sequence-number.6613.4.7.2Cadenced-ringing.6713.4.7.3Pulsed-signal.6813.4.7.4Steady-signal.6913.4.7.5Digit-signal.7013.4.7.6Recognition-time.7113.4.7.7Enable-autonomous-acknowledge.7113.4.7.8Disable-autonomous-acknowledge.7213.4.7.9Cause.7313.4.7.10Resource-unavailable.7413.4.7.11Enable-metering.7413.4.7.12Metering-report.7513.4.7.13Attenuation.7613.5PSTNcallcontrolprocedures.7613.5.1General.7713.5.2Handlingoferrorconditions.7713.5.2.1Protocoldiscriminatorerror.7813.5.2.2L3addrerror.7813.5.2.3Messagetypeerror.7813.5.2.4Informationelementoutofsequence.7913.5.2.5Repeatedinformationelements.7913.5.2.6Mandatoryinformationelementmissing.79SIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)613.5.2.7Unrecognizedinformationelement.8013.5.2.8Contenterrorofmandatoryinformationelement.8013.5.2.9Contenterrorofoptionalinformationelement.8013.5.2.10Unexpectedmessage.8113.5.2.11Optionalinformationelementnotallowed.8113.5.2.12Optionalinformationelementmissing.8113.5.2.13Statusenquiryprocedure.8113.5.2.14Statusprocedure.8213.5.3Pathrelatedprocedures.8313.5.3.1PathinitiationbyAN.8413.5.3.1.1Subscriberseizurerequest.8413.5.3.1.2Subscriberseizureconfirmation.8413.5.3.2PathinitiationbyLE.8513.5.3.2.1Establishrequest.8513.5.3.2.2Establishacknowledge.8613.5.3.3Pathcollision.8613.5.3.3.1Originatingcallprevail.8713.5.3.3.2Destinationcallprevail.8713.5.3.4Pathactive.8713.5.3.4.1Normaloperation.8713.5.3.4.2Exceptionalprocedures.8813.5.3.5Disconnectingpath.8813.5.3.5.1Disconnectrequest.8913.5.3.5.2Disconnectacknowledge.9013.5.3.6Lineinformationprocedure.9013.5.3.6.1Normaloperation.9013.5.3.6.2Exceptionalprocedures.9113.5.4Non-pathrelatedprocedures.9113.5.4.1Protocolparameterprocedures.9113.5.4.1.1Normaloperation.9113.5.4.1.2Exceptionalprocedures.9113.5.4.2Portblockingprocedures.9213.5.4.3Restartprocedure.9213.5.5L3errordetectionprocedure.9313.5.5.1MultipleSIGNALmessageoperation-variables,sequencenumbersandtimers.9313.5.5.1.1Modulus.9313.5.5.1.2SendsequencevariableS(S).9313.5.5.1.3AcknowledgesequencevariableS(A).9313.5.5.1.4SendsequencenumberM(S).9313.5.5.1.5ReceivesequencevariableS(R).9313.5.5.1.6ReceivesequencenumberM(R).9413.5.5.1.7TimerTt.9413.5.5.1.8TimerTr.9413.5.5.2MultipleSIGNALmessageoperation-procedures.9413.5.5.2.1Initialization.9413.5.5.2.2SendingaSIGNALmessage.9413.5.5.2.3SendingaSIGNALACKmessage.9413.5.5.2.4ReceivingaSIGNALmessage.9413.5.5.2.5ReceivingaSIGNALACKmessage.9413.5.5.2.6StartoftimerTr.9513.5.5.2.7StopoftimerTr.9513.5.5.2.8TimeoutoftimerTr.9513.5.5.2.9StartoftimerTt.9513.5.5.2.10StopoftimerTt.9513.5.5.2.11TimeoutoftimerTt.9513.5.5.2.12ReceivingaDISCONNECTmessage.9513.5.5.3MultipleSIGNALmessageoperation-values.9513.5.5.3.1NumberofoutstandingSIGNALmessages.9513.5.5.3.2TimerTt.9513.5.5.3.3TimerTr.95SIST EN 300 324-1 V2.1.1:2005

ETSIETSIEN300324-1V2.1.1(2000-04)713.6Listofsystemparameters.9613.7ANandLEsidestatetables.9714Controlrequirementsandprotocol.10314.1ISDNuserportstatusindicationandcontrolprotocol.10414.1.1Generalaspects.10414.1.2Eventsandfunctionelementsrelevantforthecontrolofthestatemachines.10514.1.3ISDNuserportFSMs,AN(ISDNport)andLE(ISDNport).10714.1.3.1Descriptionofthestates.10714.1.3.2Definitionofportcontrolstates.10814.1.3.2.1ISDNuserportFSM-AN(ISDNport).10814.1.3.2.2ISDNUserportFSM-LE(ISDNport).10914.1.3.3Principlesandprocedures.11014.1.3.3.1General.11014.1.3.3.2Blocking.11014.1.3.3.3Blockingrequest.11014.1.3.3.4Co-ordinatedunblocking.11014.1.3.3.5Activation.11114.1.3.4ISDNportFSMattheAN.11214.1.3.5ISDNportFSMattheLE.11414.1.4Performancemonitoringaspects.11514.2PSTNuserportstatusindicationandcontrolprotocol.11514.2.1Generalaspects.11514.2.2Eventsandfunctionelementsrelevantforthecontrolofthestatemachines.11614.2.3PSTNuserportFSM,AN(PSTNport)andLE(PSTNport).11714.2.3.1Descriptionofthestates.11714.2.3.2Definitionofportcontrolstates.11714.2.3.2.1PSTNuserportFSM-AN(PSTNport).11714.2.3.2.2PSTNuserportFSM-LE(PSTNport).11814.2.3.3Principlesandprocedures.11814.2.3.3.1General.11814.2.3.3.2Blocking.11814.2.3.3.3Blockingrequest.11814.2.3.3.4Co-ordinatedunblocking.11914.2.3.4PSTNportFSMattheAN.11914.2.3.5PSTNportFSMattheLE.11914.3InterfaceL1maintenancerequirementsandprotocol.12014.3.1Eventsandfailurereports.12014.3.2Detectionalgorithmforeventsandsignals.12114.3.3V5.1interfaceL1FSM.12114.3.4Requirementsandproceduresfortheadditionalfunctions.12214.4Controlprotocol.12214.4.1Controlprotocolmessagedefinitionandcontent.12214.4.1.1PORTCONTROLmessage.12314.4.1.2PORTCONTROLACKmessage.12314.4.1.3COMMONCONTROLmessage.12414.4.1.4COMMONCONTROLACKmessage.12414.4.2Generalmessageformatandinformationelementcoding.12414.4.2.1Overview.12414.4.2.2Protocoldiscriminatorinformationelement.12514.4.2.3L3addrinformationelement.12514.4.2.4Messagetypeinformationelement.12514.4.2.5Otherinformationelements.12614.4.2.5.1Codingrules.12614.4.2.5.2Performancegradinginformationelement.12614.4.2.5.3Rejectioncauseinformationelement.12714.4.2.5.4Controlfunctionelementinformationelement.12714.4.2.5.5ControlfunctionIDinformationelement.12714.4.2.5.6Variantinformationelement.12814.4.2.5.7InterfaceIDinformationelement.12814.4.3Statedefinitionsofthecontrolprotocol.
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