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1、INTERNATIONA1.STANDARDISO/IEC29168-1editionSecond2023-03Informationtechno1.ogy-Opensystemsinterconnection一identifierreso1.utionsystemTechno1.ogiesdeinformationInterconnexiondesystemesouverts(OSI)-Partie1:Systemedereso1.utiond,identificateurd,objetReferencenumberISO/IEC29168-1.:2023(E)COPYRIGHTPROTEC
2、TEDDOCUMENTISO/1EC2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InPSd1.Mc;GeatrOn1.fifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andFOREWORDTheInternationa1.Te1.ecommunicationUnion(ITU)istheUnitedNationsspecia1.izedagencyinthefie1.dOftekcoininunications.infornut
3、ionandcommunicationtechno1.ogies(ICTs).TheITUTe1.ecommunicationStandardizationSector(ITU-T)isapermanentorganofITU.ITU-Tisresponsib1.eforstudyingtechnica1.,operatingandtariffquestionsandissuingRCCOmmCrKIa1.iOnSonthemwithaviewtostandardizingte1.ecommunicationsonawor1.dwidebasis.TheWor1.dTe1.ecommunica
4、tionSiandardizaMonASSen1.bIy(rTS).whichmeetseveryfouryears,estab1.ishesthetopicsforstudybyIhcITU-Tstudygroupswhich,inturn,p11)duceRccomnienda1.ionsonthesetopics.Ihcapprova1.ofITU-,Recommendationsiscoveredbytheprocedure1.aiddowninWTSARcso1.uiion1.InsomeareasOfinfdnnationtechno1.ogywhichfa1.1.withinIT
5、U-Tspurview,(henecessarystandardsarepreparedonaco1.1.aborativebasiswithISOandIEC.NOTEInthisRecommendation,theexpressionAdministrationisusedIbrconcisenesstoindicatebothate1.ecommunicationadministrationandarecognizedoperatingagency.Comp1.iancewiththisRccoinnienda1.ionisvo1.untarj*.However,theRecommend
6、ationmaycontaincertainmandatoryprovisions(toensure,c.g.inte11)perabi1.i1.yorapp1.icabi1.ity)andcomp1.iancewiththeRecommendationisachievedwhena1.1.ofthesemandatoryprovisionsarcmet.Thewords,sha1.orSamCotherob1.igator,1.anguagesuchasmustandthenegativeequiva1.entsarcusedtoexpressrequirements.Vhcuseofsuc
7、hwordsdoesno1.suggestIhatcomp1.iancewiththeRecommendationisrequiredofanyparty.INTE1.1.ECTUA1.PROPERTYRIGHTSITUdrawsae11ionothepossibi1.ityhahepracticeorimp1.ementationofthisRecommendaiionmayinvo1.vetheUscofac1.aimcdInte1.1.ectua1.PropertyRight.ITUtakesnopositionconcerningtheevidence,va1.idityorapp1.
8、icabi1.ityofc1.aimedInte1.1.ectua1.PropertyRights,whetherassertedbyITUmembersorothersoutsideoftheRecommendationdeve1.opmentprocess.Asofthedateofapprova1.of(hisRecommendation.ITUhadnotreceivednoticeOfinte1.1.ecuia1.property,p11tectedbyPatCntNsoftwarecopyrights,whichmayberequiredtoimp1.ementthisRecomm
9、endation.However,imp1.cmcntcrsarccautionedthatthismaynotrepresentthe1.atestinformationandarcthereforestrong1.yurgedtoconsu1.ttheappropriateITU-Tdatabasesavai1.ab1.evia(heITU-Twebsiteathup:。WWW.iu.inTUTipITU2023A1.1.righbireserved.Npartofthispub1.icationmaybereproduced,byanymeanswhatsoever,withoutthe
10、priorwrittenpermissionofITU.CONTENTSPageNr11micrchrcnccs2.1Idcmic41.RcVOm1.nCnda1.iens1.n(cmatina1.Standards3.1Importeddefinitionsddi1.Mna1definitions？hMW,1.Iin、qniccmivmsOIDreso1.utionsystemdrchitocurc5.2Imeractiefi1.e%1.wIheORSUtnnaii1.6.16.26.36.4RequirementsandrestrictionsonDNSzoneGksintheORSdom
11、ainUseofDNSrtMMifveItXtNXhforORSservices*”OperationofanORSc1.ient7.17.2737.47.57.6FUnni1.1.1.11ICfiCSaaaaiataaa111y*aConveningtinO1.01.R1.、n1.uctoiHC?DN*0“”ScuKiri1.ycoJco11oos11.oca1.performanceCOn1.dCratiOnSU8H8$RequirementsforORSserviceSpoCineanO(U8.1 SpecifiEionofNAPTRinformation8.2 Rcconinicnck
12、itiorisforORSKPP1.idinnpcocc5si11jAnnexA-A1.ignedORSservice1.ype.AnnexB-Specificationofthecanonica1.O1.DCOID)ORSserviceAnnexC-Specifica1.ionofthechi1.dinformation(CINF)ORSMIrViCeC2C1.NFXAS1.fMIOIOIOI1.1313B151515AnnexDSpxi11C1.innofIhercgis1.rntinninfnrm；Hion(RINH)ORSWvkCAnnexE-SpecificationofthemxJu!cinfb11nation(MiNF)ORSserviceAnnCXF11p*tM11Cf1.IXC(1*(*cChi1.d11torutio(C1.NF)ORSseiViCC.*Regis1.ru1.MMiintvna1.iun(RJNF)ORSserviceJUICinfo11nution(卜INF.ORSservice181818IS18Ann
