新一代互联网网络层协议IPv6.ppt
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新一代互联网网络层协议IPv6.ppt

新一代互联网网络层协议IPv6.ppt

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新一代互联网网络层协议IPv6OutlineWhyaNewIP?WhatEverHappenedtoIPv5?Technologies&effortstoslowtheconsumptionrateWouldincreaseduseofNATsbeadequate?ReturntoanEnd-to-EndArchitectureWhyisalargeraddressspaceneeded?Whyisalargeraddressspaceneeded?WhyWas128BitsChosenastheIPv6AddressSize?WhyWas128BitsChosenastheIPv6AddressSize?WhyWas128BitsChosenastheIPv6AddressSize?Benefitsof128bitAddressesIncidentalBenefitsofNewDeploymentSummaryofMainIPv6BenefitsIPv6AdvancedFeaturesIPv6MarketsOutlineSummaryofHeaderChangesbetweenIPv4&IPv6SummaryofHeaderChangesbetweenIPv4&IPv6ExtensionHeadersExtensionHeadersFragmentHeaderRoutingRoutingHeaderSSSSSomeTerminologyTextRepresentationofAddressesIPv6-AddressingModelTypesofIPv6AddressesAddressTypePrefixessitetopology(16bits)Link-localaddressesforuseduringauto-configurationandwhennoroutersarepresentSite-localaddressesforindependencefromchangesofTLA/NLAInterfaceIDsSomeSpecial-PurposeUnicastAddressesMulticastAddressFormatOutlineIPv6SecurityIPv6SecurityAuthenticationHeaderEncapsulatingSecurityPayload(ESP)IPv6QualityofServiceIPQualityofServiceApproachesIPv6SupportforIntServIPv6SupportforDiffServCompromiseIPv6MobilityIPv6MobilityHomeAgentBindingMaintenanceHomeAgentBindingMaintenanceDirectDeliveryCorrespondentNodeBindingMaintenanceReturnRoutabilityProcedureBindingUpdateBindingAcknowledgementDirectDeliveryDirectDeliveryComparisonwithMobileIPv4ComparisonwithMobileIPv4ICMPandNDICMPErrorMessagesICMPErrorMessageTypesICMPInformationalMessagesNeighborDiscoveryRouterAdvertisementsOtherNeighborDiscoveryMessagesServerlessAutoconfigurationAuto-Reconfiguration(“Renumbering”)MinimumMTUPathMTUDiscoveryNDAutoconfiguration,Prefix&ParameterDiscoveryNDAddressResolution&NeighborUnreachabilityDetectionNDRedirectNDDuplicateAddressDetectionIPv6RoutingIPv6RoutingBGP4+OverviewOutlineIPv4-IPv6Co-Existence/TransitionIPv6Timeline(Apragmaticprojection)DeploymentsImpedimentstoIPv6deploymentTransition/Co-ExistenceTechniquesDual-StackApproachDual-StackandDNSTunnelstoGetThroughIPv6-IgnorantRoute