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数据与计算机通信讲义

上传者:业精于勤 |  格式:pdf  |  页数:72 |  大小:11047KB

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or.NET.\rstationsmusthavefull-duplexadaptercards\randmustuseswitchinghub\reachstationconstitutesseparatecollisiondomain\rCSMA/CDalgorithmnolongerneeded\r802.3IN/IACframeformatused\rMixedConfigurations\rFastEthernetsupportsmixtureofexisting10-MbpsLANsandnewer100-MbpsLANs\rsupportingolderandnewertechnologies\re.g.100-IN/lbpsbackboneLANsupports10-Mbpshubs\rstationsattachtO10-Mbpshubsusing10BASE-T\rhubsconnectedtoswitchinghubsusing100BASE-T\rhigh-capacityworkstationsandserversattachdirectlyto10/100switches\rswitchesconnectedtO100-Mbpshubsuse100-Mbpslinks\r100-Mbpshubsprovidebuildingbackbone\rconnectedtorouterprovidingconnectiontoWAN\rGigabitEthernet-Differences\rcarrierextensionÿatleast4096bit-timeslong(512for10/100)\rframebursting\rnotneededifusingaswitchedhubtoprovidededicatedmediaaccess\r72

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