TRECGSup4312IMSWEWord文件下载.docx

TRECGSup4312IMSWEWord文件下载.docx

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ITU-TG-SERIESRECOMMENDATIONS

TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKS

INTERNATIONALTELEPHONECONNECTIONSANDCIRCUITS

G.100–G.199

GENERALCHARACTERISTICSCOMMONTOALLANALOGUECARRIER-TRANSMISSIONSYSTEMS

G.200–G.299

INDIVIDUALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONESYSTEMSONMETALLICLINES

G.300–G.399

GENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONESYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTIONWITHMETALLICLINES

G.400–G.449

COORDINATIONOFRADIOTELEPHONYANDLINETELEPHONY

G.450–G.499

TRANSMISSIONMEDIAANDOPTICALSYSTEMSCHARACTERISTICS

G.600–G.699

DIGITALTERMINALEQUIPMENTS

G.700–G.799

DIGITALNETWORKS

G.800–G.899

DIGITALSECTIONSANDDIGITALLINESYSTEM

G.900–G.999

QUALITYOFSERVICEANDPERFORMANCE–GENERICANDUSER-RELATEDASPECTS

G.1000–G.1999

TRANSMISSIONMEDIACHARACTERISTICS

G.6000–G.6999

DATAOVERTRANSPORT–GENERICASPECTS

G.7000–G.7999

PACKETOVERTRANSPORTASPECTS

G.8000–G.8999

ACCESSNETWORKS

G.9000–G.9999

Forfurtherdetails,pleaserefertothelistofITU-TRecommendations.

43toITU-TG-seriesRecommendations

Summary

Supplement43toITU-TG-seriesRecommendationsdescribesseveralapproachesfortransportof10GLANPHYoverSDHandOTNtransportnetworks.Assomeoftheseapproachesuserates,formatsandmappingsthatarenotdefinedinITU-TRecommendations,thissupplementanalysesvariousattributesofthedifferentapproachestoprovideguidanceregardingtheirapplicabilitytodifferentnetworkcontexts.

ThissupplementrelatestoRecommendationsITU-TG.872,G.709/Y.1331,G.798,G.707/Y.1322,G.8010/Y.1306,G.8012/Y.1308,G.959.1andG.696.1

Source

43toITUTG-seriesRecommendationswasagreedon12 

December 

2008byITUT 

StudyGroup 

15（2009-2012）.

FOREWORD

TheInternationalTelecommunicationUnion（ITU）istheUnitedNationsspecializedagencyinthefieldoftelecommunications,informationandcommunicationtechnologies（ICTs）.TheITUTelecommunicationStandardizationSector（ITU-T）isapermanentorganofITU.ITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.

TheWorldTelecommunicationStandardizationAssembly（WTSA）,whichmeetseveryfouryears,establishesthetopicsforstudybytheITUTstudygroupswhich,inturn,produceRecommendationsonthesetopics.

TheapprovalofITU-TRecommendationsiscoveredbytheprocedurelaiddowninWTSAResolution 

1.

InsomeareasofinformationtechnologywhichfallwithinITU-T'

spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.

NOTE

Inthispublication,theexpression"

Administration"

isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.

Compliancewiththispublicationisvoluntary.However,thepublicationmaycontaincertainmandatoryprovisions（toensuree.g.,interoperabilityorapplicability）andcompliancewiththepublicationisachievedwhenallofthesemandatoryprovisionsaremet.Thewords"

shall"

orsomeotherobligatorylanguagesuchas"

must"

andthenegativeequivalentsareusedtoexpressrequirements.Theuseofsuchwordsdoesnotsuggestthatcompliancewiththepublicationisrequiredofanyparty.

INTELLECTUALPROPERTYRIGHTS

ITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthispublicationmayinvolvetheuseofaclaimedIntellectualPropertyRight.ITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideofthepublicationdevelopmentprocess.

Asofthedateofapprovalofthispublication,ITUhadnotreceivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthispublication.However,implementersarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabaseathttp:

//www.itu.int/ITU-T/ipr/.

ITU 

2009

Allrightsreserved.Nopartofthispublicationmaybereproduced,byanymeanswhatsoever,withoutthepriorwrittenpermissionofITU.

CONTENTS

Page

1Scope1

2References1

3Definitions2

4Abbreviationsandacronyms2

5Conventions3

6Standardmappings3

6.110GBASE-W（WANPHY）viaSTM-643

6.2GFP-Fmappingof10GBASE-R（LANPHY）payloadonlyintoOPU23

7Non-standardmappings3

7.1Bittransparentmappingof10GBASE-RsignalintoOPU2e4

7.2Bittransparentmappingof10GBASE-RsignalintoOPU1e4

7.3ITU-TG.709bit-ratecompliantinformationtransparenttransportofpayloadandpreamble4

8Characteristicsofalternativemappings4

8.1ITU-TG.709bit-ratecompliant6

8.2Inter-domain/intra-domaininterfaces6

8.3Timingandsynchronization6

8.4Opticalcharacteristics6

8.5Multiplexing,multi-service7

8.6Transparency7

8.7BERmonitoring8

9MultiplexingfourODU2esignalsintoODU3e9

9.1Asynchronousbit-transparentmappingof4xODU2esignalinto 

OPU3e19

9.2AsynchronousgenericmappingoffourODU2esignalsintoOPU3e217

1Scope

Thissupplementdescribesdifferentapproachesfortransportof10GBASE-RsignalsinopticaltransportnetworksviaanODU2ornon-standardODU2-likeframeformat（i.e.,rates,formatsandmappingsthatarenotdefinedinITU-TRecommendations）.Thissupplementincludesdescriptionsrelatedtomultiplexingthenon-standardODU2-likestructuresintoODU3-likesignals.Differentattributesofthevaryingsolutionsaredescribedtohelpprovideguidanceonwhichapproachesareappropriatetowhichnetworkcontexts.

Includingacurrentlynon-standardmappinginthissupplementdoesnotprecludeconsideringthatmappingforstandardizationatafuturedate.

2References

[ITU-TG.694.1]RecommendationITU-TG.694.1（2002）,SpectralgridsforWDMapplications:

DWDMfrequencygrid.

[ITU-TG.696.1]RecommendationITU-TG.696.1（2005）,LongitudinallycompatibleintradomainDWDMapplications.

[ITU-TG.707]RecommendationITU-TG.707/Y.1322（2007）,Networknodeinterfaceforthesynchronousdigitalhierarchy（SDH）.

[ITU-TG.709]RecommendationITU-TG.709/Y.1331（2003）,InterfacesfortheOpticalTransportNetwork（OTN）.

[ITU-TG.798]RecommendationITU-TG.798（2006）,Characteristicsofopticaltransportnetworkhierarchyequipmentfunctionalblocks.

[ITU-TG.870]RecommendationITU-TG.870/Y.1352（2004）,Termsanddefinitionsforopticaltransportnetworks（OTN）.

[ITU-TG.872]RecommendationITU-TG.872（2001）,Architectureofopticaltransportnetworks.

[ITU-TG.959.1]RecommendationITU-TG.959.1（2006）,Opticaltransportnetworkphysicallayerinterfaces.

[ITU-TG.7041]RecommendationITU-TG.7041/Y.1303（2008）,Genericframingprocedure（GFP）.

[ITU-TG.8001]RecommendationITU-TG.8001/Y.1354（2006）,TermsanddefinitionsforEthernetframesoverTransport（EoT）.

[ITU-TG.8010]RecommendationITU-TG.8010/Y.1306（2004）,ArchitectureofEthernetlayernetworks.

[ITU-TG.8012]RecommendationITU-TG.8012/Y.1308（2004）,EthernetUNIandEthernetNNI.

[ITU-TG.8251]RecommendationITU-TG.8251（2001）,Thecontrolofjitterandwanderwithintheopticaltransportnetwork（OTN）.

[IEEE802.3]IEEE802.3-2005,InformationTechnology 

–TelecommunicationsandInformationExchangeBetweenSystems 

–LAN/MAN 

–SpecificRequirements–Part3:

Carriersensemultipleaccesswithcollisiondetection（CSMA/CD）accessmethodandphysicallayerspecifications.<

http:

//ieeexplore.ieee.org/servlet/opac?

punumber=10531>

3Definitions

None.

4Abbreviationsandacronyms

Thissupplementusesthefollowingabbreviationsandacronyms:

CBR10GConstantBitRatesignalof9953280kbit/s±

20ppm（see[ITU-TG.870]）

CBR2G5ConstantBitRatesignalof2488320kbit/s±

FCSFrameCheckSequence

FECForwardErrorCorrection

GFPGenericFramingProcedure

GMPGenericMappingProcedure

IaDIIntra-DomainInterface（see[ITU-TG.870]）

IPGInter-PacketGap

IrDIInter-DomainInterface（see[ITU-TG.870]）

JCJustificationControl

JOHJustificationOverhead

MACMediaAccessControl

MFASMultiFrameAlignmentSignal

MSIMultiplexStructureIdentifier

NJONegativeJustificationOpportunity

OCCOpticalChannelCarrierwithfullfunctionality（see[ITU-TG.870]）

OCCrOpticalChannelCarrierwithreducedfunctionality（see[ITU-TG.870]）

ODUOpticalDataUnit

OHOverhead

OPUOpticalPayloadUnit

OTUOpticalTransmissionUnit

PHYPhysicallayer

PJOPositiveJustificationOpportunity

PTPayloadType

SDHSynchronousDigitalHierarchy

SFDStart-of-FrameDelimiter

SONETSynchronousOpticalNetwork

TSTributarySlot

TSOHTimeSlotOverhead

WANWideAreaNetwork

5Conventions

Transmissionorder:

Theorderoftransmissionofinformationinallthefiguresinthissupplementisfirstfromlefttorightandthenfromtoptobottom.Withineachbyte,themostsignificantbitistransmittedfirst.Themostsignificantbit（bit1）isillustratedattheleftinallthefigures.

6Standardmappings

6.110GBASE-W（WANPHY）viaSTM-64

[IEEE802.3]hasdefinedaWANinterfaceforcompatibilitywithSDH/SONETtranspor