Flow-Based Fast Handover Method for Mobile IPv6 Network

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1、Flow-BasedFastHandoverMethodforMobileIPv6NetworkMiskaSulander,TimoHam¨al¨ainen,¨AriViinikainenandJaniPuttonenDepartmentofMathematicalInformationTechnologyUniversityofJyvask¨yla¨40014Jyvask¨yla,¨FINLANDEmails:sulander@cc.jyu.fi,timoh@cc.jyu.fi,arjuvi@mit.jyu.fiandjanput@cc.jyu.fiABSTRACTgroup.Th

2、ehandoffsoftheMNareinformedtotheCNsviaMobileIPv6providescomprehensivemobilitymanagementthismulticastgroup.ThemaintenanceofthemulticastgroupsfortheIPv6protocol.Itprovidesmanybenefitscomparedtomeansadditionaltasksforthenetworkelements.MobileIPv4,suchasrerouteoptimization,protocolextensionsThei

3、deaofusinga“virtual”HAwhichislocatedcloserandIPSecurity(IPSec).Oneproblemstillremains,thehan-totheMNthentheactualHAhasbeenproposedindifferentdovertimeisrelativelylong.Thisisabigproblematleastforms.TheuseofaRoutingAgenttobeusedbetweentheHAinreal-timeconnections.Thispaperpresentsanewmethodand

4、theForeignAgentispresentedin[9]and[10]tofastenforfasterhandoverinIPv6network,calledFlowbasedFastthehandoffprocess.TheuseofaLocalMobilityAgenttoHandoverforMIPv6(FFHMIPv6),whichusesthefeaturesofactasalocalHAisproposedin[11].In[12]aspecializedIPv6protocolandbenefitsfromIPv6trafficcontrol.pathset

5、upschemeisproposed,wherehost-basedforwardingentriesareinstalledinspecificrouterssotheMN'snetworkI.INTRODUCTIONaddressremainsthesamewithinadomain.MobilityinIPv6networks[1][2]hasevolvedremarkablyWhilemanyproposalsconcentrateonmodifyingtheARs,comparedtoMobileIPv4protocol[3].MobileIPv6(MIPv6)ano

6、therapproachtodiminishthehandoverdelayisthemod-enablestransparentroutingofIPv6packetstoMobileNodesificationoftheMN.Amobilenodebufferingfunctionis(MNs)fromCorrespondentNodes(CNs).Themobilityisproposedin[13]tomitigatetheeffectsofhandover.TheMNmadepossiblebyusingaHomeAgent(HA)andalocalbuffersth

7、eTCPACKsjustbeforethehandoffforcingtheCNCare-of-Address(CoA).Unfortunatelyitisstillunsolvedhowtostopitstransmitting.AfterthehandoverthebufferedTCPtominimizethehandovertimebetweentwologicalsubnetsACKsaredeliveredtotheCNanditresumesthetransmission.sothatth