外文翻译两种动态路由协议详情详情地性能比较

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1、实用标准文案PerformanceComparisonofTwoDynamicRoutingProtocols:RIPandOSPFABSTRACT:Therearetwomainclassesofadaptiveroutingprotocolsintheinternet:distancevectorandlinkstate.Thispaperpresentsthecomparisonbetweendistancevectorandlinkstate.ItalsooutlinestheprosandconsofRIPandOSPFprotoc

2、olsandaperformanceanalysiswithsomepossibleenhancementispresented.NetworkSimulator(NS2)isusedtoobtaintheperformanceresultsofthetwoclassesusingdifferentmetricssuchasthroughput,packetdelayandpacketloss.ResultsofthesimulationshowthatOSPFhasabetterperformancethanRIPintermsofaver

3、agethroughputandpacketdelayindifferentnetworksizes,whileRIPisbetterthanOSPFintermsofnumberofpacketlossinlargenetworks.Keywords:DynamicRoutingProtocols,RIP,OSPF,NS21.INTRODUCTIONNetworksrelyonroutingprotocolstokeeptheroutingtablesupdated.Routingisusedinnetworkstocontrolandfo

4、rwarddata.Foraroutertobeefficientandeffective,thecriticalfactoristhechoiceoftheroutingprotocol.Routingprotocolsfindapathbetweennetworknodes;ifmultiplepathsexistforagivennodethentheshortestpathisselectedbyprotocol.Eachprotocolhasacostmetricthatitappliestoeachpath.Thepathwith

5、lowestmetricisselectedbyprotocol.Metricstocompareoneroutingprotocolwithanotherarebasedonconvergencetimetoadapttotopologychanges,optimalityistochoosethebestpath,notnecessarilyatminimumcostbuttoensureaminimumdelayortominimizeoverheadandspacerequirementstostoretheroutingtable[

6、1][5][7].Therestofpaperisorganizedasfollows:Section2isanoverviewofroutingprotocols.InSection3and4RIPandOSPFarediscussed.WestudiedRIPandOSPFbecausethisinteriorroutingprotocoliswidelyusedintheinternet.Inadditiontheprosandconsoftheseroutingprotocolsarestudiedinbrief.InSection5

7、thesystemmodelusedforsimulationisexamined,andinSection6weimplementroutingprotocolsusingNS2.TheresultsofsimulationshowthatOSPFisbetterthanRIPinsomeaspects.ButinotheraspectsRIPisrevealedtobebetterthanOSPFinSection7.Finallyweconcludethepaper.2.ROUTINGPROTOCOLSTherearetwotypeso

8、froutingprotocols:staticordynamicroutingprotocols.Dynamicroutingprotocolsaresuperi