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专业英语论文

第一篇：专业英语论文课程论文院系物理与电子工程学院专业电子信息工程班级电工1111班学生姓名简东阳学号2011140131任课教师罗倩倩2013年12月26日SwitchingtechnologypresentsituationanddevelopmenttrendJiandongyangHubeiuniversityofArtsandSciences420683a0196.cdb@sina.cnAbstract：Directioninthefuture,moreextensiblefeatureswillbecometheimportantcharacteristicsofanewgenerationofInternet,theexchangeoftechnology,willbeasakeytechnologytohostthisextensiblefeatures.Switchingtechnologyinscale,function,performance,safetyandserviceandotheraspectshavebetterextensibilityfeatures,willbeanewgenerationofInternetarchitectureinthefuture.Keywords:Networktechnology;TheInternet;SwitchingtechnologyThepresentsituationoftheexchangeoftechnologyTherapiddevelopmentofnetworktechnology,Ethernetisalwaysdominant.However,withthedeepeningofthenetworktechnologyapplication,thenetworkdevelopmentscaleandspeedarespeeding.NotonlythespeedoftheLANgotimproved,gigabitEthernetalsograduallybecamepopular.attentiontonetworkofhighreliability,highperformance,easymaintenanceandreducedcost,andthesefactorsisdependentontheusingkindofnetworkingtechnology;Equipmentvendorswouldonthebasisofnotharmtheinterestsoftheusernetworkfunctionsandpursuetheconsiderableprofit.Aboutthenetwork,therehavebeenamaturetraditionallayer2switchingtechnology,andthefunctionoftheroutinglayer3,andahighservicelevelofnetworklayer7.switchingtechnologyofAsingletraditionallayer2.Moretraditionallayer2switchingtechnology,isaspecialsingle,itcontainsonlythedatalinklayerforward.Layer2switchingtechnologyismostlyusedforsmalllocalareanetwork(LAN),themachineNumberskeepin20or30setsofthefollowingisthesecurityofthenetworkenvironment,fastswitchingfunction,multipleaccessport,lowpricewhichthethreelayer2switchingtechnologyhashassolvetheproblemthatthesmallnetworkusers.2.1ThethirdlayerswitchingtechnologywithroutingfunctionInordertosolvetheproblemsofthebroadcastdomain,forthefirsttimein1997thethirdlayerswitchingtechnologywithroutingfunctionappeared.Layer3switchingtechnologyhasnowbecomeamainforceoftheconstructionofmultiplebusinessfusio