【正文】 ..................................................................................................... 1 網(wǎng)絡安全的現(xiàn)狀 ....................................................................................................... 1 網(wǎng)絡的主要安全隱患 ............................................................................................... 1 網(wǎng)絡安全的重要性 ................................................................................................... 2 2 局域網(wǎng)的構建 ...................................................................................................................... 3 局域網(wǎng)的特點 ...................................................................................................... 3 從功能上講，局域網(wǎng)有以下特點： ............................................................... 3 從網(wǎng)絡體系結構和傳輸控制規(guī)程來看 ,計算機局域網(wǎng)的特點是 : ................ 4 局域網(wǎng)的基本構建 ..................................................................................................... 4 局域網(wǎng)的設計原則 ..................................................................................................... 5 實用性 ............................................................................................................ 5 可擴充性 ........................................................................................................ 5 開放性 ............................................................................................................ 5 成本有效性 .................................................................................................... 5 可管理性 ........................................................................................................ 6 安全可靠性 .................................................................................................... 6 局域網(wǎng)的構建要點 ................................................................................................... 6 網(wǎng)絡拓撲結構的規(guī)劃 .................................................................................... 6 局域網(wǎng)的硬件配置 ........................................................................................ 7 局域網(wǎng)的軟件配置 ........................................................................................ 7 3 網(wǎng)絡拓撲結構 ...................................................................................................................... 8 確定中小型網(wǎng)絡規(guī)模及建筑物的平面圖 ............................................................... 8 確定網(wǎng)絡拓撲結構圖，如圖 42 所示 .................................................................... 9 4 交換機與雙絞線 ................................................................................................................... 10 交換機 ........................................................................................................................ 10 查詢國內外交換機生產(chǎn)廠 商 ...................................................................... 10 各生產(chǎn)商的交換機的價格性能 .................................................................. 10 H3C 交換機的詳情 ........................................................................................ 11 H3C S550028CSI 詳細參數(shù) ................................................................................. 11 小型局域網(wǎng)的組建與管理 V 雙絞線 ....................................................................................................................... 14 查詢雙絞線國內外生產(chǎn)廠商 ...................................................................... 14 各生產(chǎn)廠商的雙絞線的價格性能 .............................................................. 14 雙絞線選擇： .............................................................................................. 15 TCL 超五類雙絞線詳細參數(shù) .................................................................................. 15 5 制作網(wǎng)線 ............................................................................................................................ 16 制作網(wǎng)線的工具 ..................................................................................................... 16 制作網(wǎng)線的過程 ........................................................................................................ 16 測線儀測試網(wǎng)線 ....................................................................................................... 20 6 共享設置 .........................