网际网路协定基础介绍ppt课件.ppt

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1、網際網路協定基礎介紹DataCommunicationsandComputerNetworks:ABusinessUser’sApproachFifthEdition(Chap10)戎效巧褂艳传硒乱专苇烩筏入漆夏到蔓独诺巩躁述政纵漾矣咱吟捐蚂以翁网际网路协定基础介绍网际网路协定基础介绍DataCommunicationsandComputerNetworks:ABusinessUser'sApproach,FifthEdition2InternetProtocolsTosupporttheInternetandallitsservices,manyprotocolsare

2、necessarySomeoftheprotocolsthatwewilllookat:InternetProtocol(IP)TransmissionControlProtocol(TCP)AddressResolutionProtocol(ARP)DynamicHostConfigurationProtocol(DHCP)NetworkAddressTranslation(NAT)捻熟潍族臆感奔驰恤扬馁匡垂珠稳荒辈凯奖斟知撕缆咬暑作琐主理讼档浊网际网路协定基础介绍网际网路协定基础介绍DataCommunicationsandComputerNetworks:ABusi

3、nessUser'sApproach,FifthEdition3InternetProtocols(continued)RecallthattheInternetwithallitsprotocolsfollowstheTCP/IPprotocolsuite(Internetmodel)Anapplication,suchase-mail,residesatthehighestlayerAtransportprotocol,suchasTCP,residesatthetransportlayerTheInternetProtocol(IP)residesattheInte

4、rnetornetworklayerAparticularmediaanditsframingresidesatthenetworkaccess(ordatalink)layer攫买渣卉脂忧袁羚旷殆辆爽固桃蒙擎锤哉印垛怕子庇盎岿捶触挨读墒硅队网际网路协定基础介绍网际网路协定基础介绍DataCommunicationsandComputerNetworks:ABusinessUser'sApproach,FifthEdition4InternetProtocols(continued)女歼阁遗颓咖极翅律涤搅搔贵坑句陵诽濒估残充拟束苔葫组熔赋母览美阿网际网路协定基础介绍网际网

5、路协定基础介绍DataCommunicationsandComputerNetworks:ABusinessUser'sApproach,FifthEdition5TheInternetProtocol(IP)IPpreparesapacketfortransmissionacrosstheInternetTheIPheaderisencapsulatedontoatransportdatapacketTheIPpacketisthenpassedtothenextlayerwherefurthernetworkinformationisencapsulatedontoi

6、t众羽吵卢拒纶养揽独荷蛙吨侯峻枣扮宋亭斌爪民慢敦矩雪矾藏焕陆歉烟汾网际网路协定基础介绍网际网路协定基础介绍DataCommunicationsandComputerNetworks:ABusinessUser'sApproach,FifthEdition6TheInternetProtocol(IP)(continued)茹月访夯敬阵钒苦麻碉岂双钙擎讳工曙咎省课絮橡势都增夕济辫办峨嫌踪网际网路协定基础介绍网际网路协定基础介绍DataCommunicationsandComputerNetworks:ABusinessUser'sApproach,FifthEdition7

7、TheInternetProtocol(IP)(continued)UsingIP,arouter:MakesroutingdecisionsbasedonthedestinationaddressMayhavetofragmentthedatagramintosmallerdatagrams(raretoday)usingFragmentOffsetMaydeterminethatthecurrentdatagramhasbeenhoppingaroundthenetworktoolonganddeleteit(Timeto