英文版，chm格式Top-DownNetworkDesign,SecondEdition,isapracticalandcomprehensiveguidetodesigningenterprisenetworksthatarereliable,secure,andmanageable.Usingillustrationsandreal-worldexamples,itteachesasystematicmethodfornetworkdesignthatcanbeappliedtocampusLANs,remote-accessnetworks,WANlinks,an