压缩SRv6部署与操作白皮书

iiSRv6supportssimplifiednetworkprotocols,capabilityopenness,andprogrammabilitybasedonIPv6basictechnologies.Itmeetstherequirementsofemergingservicessuchas5G,cloud-networksynergyandprovideshighscalabilityandflexibility.SRv6uses128-bitIPv6addressesassegmentIDs(SIDs),inheritingtheadvantagesofflexibleconnection,globalrouting,andprogrammabilityofIPv6addresses,aswellastheadvantagesofSRsourcerouting,networksimplification,andpathreversion.ItrepresentsanimportantdevelopmentdirectionofIPv6-basednetworksandwillbecomethecoretechnologyofthenextgenerationIPnetworks.However,SRv6deploymentstillneedstosolvevariousproblems,suchasbearerefficiency,hardwarecompatibility,andsmoothnetworkupgradeandmigration.ManyexpertsaroundtheworldworkedtogetherandproposedtheC-SIDheadercompressionoptimizationsolutionandpromotedstandardizationattheIETF.ThiswhitepaperaimstodescribetheglobalnetworkingdeploymentoftheC-SIDsolutionsinceitwasproposed.Chapter1introducesSRv6andtherationaleforSRv6compression,servingasareferenceforreadersunfamiliarwithSRv6.ThosealreadyversedinSRv6mayproceeddirectlytoChapter2(HistoryofSRv6Compression)andChapter3(DeploymentScenariosandPracticesofSRv6Compression).ThewhitepapergoesoversomedesignanddeploymentcasestoprovidereferenceandguidancefortheindustrywhendeployingSRv6C-SIDs.WehopethattheprecedingworkwillaccelerateSRv6deployment,andalsoaccelerateIPnetworkinnovationinthecloud-networkera.Thecopyrightofthiswhitepaperbelongstoallthecontributorcompanies.Withoutauthorization,nounitorindividualmaycopypartorallthecontentsofthisproposal. iiiContentsForeword...........................................................................................................................................ii1BackgroundandRequirementsofSRv6Compression.........................................................41.1SRv6Development........................................................................................................................................................41.2WhyDoesSRv6RequireHeaderCompression.............................................................................................................51.3BenefitsofSRv6Compression......................................................................................................................................72HistoryofSRv6Compression....................................................................................................92.1DevelopmentProcessofSRv6CompressionStandard.................................................................................................92.2TrialandInterop-TestofSRv6Compression.................................................................................................................93DeploymentScenariosandPracticesofSRv6Compression..............................................123.1SRv6CompressionSIDAssignment...........................................................................................................................123.2SRv6CompressionInter-ASDeployment...................................................................................................................143.3SRv6CompressionVisualization.................................................................................................................................183.4SRv6CompressionTrafficSteering.............................................................................................................................193.5SRv6CompressionTrafficProtection..........................................................................................................................204DeploymentCasesofSRv6Compression..............................................................................234.1CloudPrivateNetworkofChinaMobile.....................................................................................................................234.2IPRANandBackboneNetworkofCarrier-MinAfrica..............................................................................................255ProspectsforSRv6CompressionDeployment.....................................................................28AReferences....................................................................................................................................29BAcronymsandAbbreviations..................................................................................................30 2025-7 2025-741BackgroundandRequirementsofSRv6Compression1.1SRv6DevelopmentSRv6isanext-generationIPtransportprotocolthatsimplifiesnetworksbyeliminatingtheneedtorunsomecomplex,traditionalprotocols.Inthe5Gandcloudera,itservesasthefoundationforbuildingintelligentIPnetworks.SRv6combinestheadvantagesofthesourceroutingmechanismusedinSegmentRouting(SR)withthesimplicityandextensibilitythatIPv6offers.Italsoprovidesamulti-dimensionalprogrammingspaceandcomplieswiththeSoftwareDefinedNetworking(SDN)paradigm,makingitapowerfultoolforimplementingintent-basednetworks[1].ToimplementSRbasedontheIPv6dataplane,anewtypeofIPv6Routing