【正文】 4
Page 5 集線器.............................................................................................................70
集線器的優(yōu)點(diǎn).................................................................................70
集線器的缺點(diǎn).................................................................................71
什么時(shí)候使用集線器.....................................................................71
集線器考慮.....................................................................................71
網(wǎng)橋.................................................................................................................72
網(wǎng)橋的優(yōu)點(diǎn).....................................................................................72
網(wǎng)橋的缺點(diǎn).....................................................................................73
什么時(shí)候使用網(wǎng)橋.........................................................................74
網(wǎng)橋考慮.........................................................................................74
交換機(jī).............................................................................................................75
交換機(jī)的優(yōu)點(diǎn).................................................................................75
交換機(jī)的缺點(diǎn).................................................................................76
什么時(shí)候使用交換機(jī).....................................................................76
交換機(jī)考慮.....................................................................................76
路由器.............................................................................................................77
路由器的優(yōu)點(diǎn).................................................................................78
路由器的缺點(diǎn).................................................................................78
什么時(shí)候使用路由器.....................................................................79
路由器考慮.....................................................................................80
輸出：設(shè)備目錄和邏輯圖.............................................................................80
練習(xí).................................................................................................................81
第二節(jié) 網(wǎng)絡(luò)性能概念...........................................................................................81
響應(yīng)時(shí)間與網(wǎng)絡(luò)時(shí)延.....................................................................................82
時(shí)延.................................................................................................82
傳播時(shí)延.................................................................................82
發(fā)送時(shí)延.................................................................................83
排隊(duì)時(shí)延.................................................................................83
響應(yīng)時(shí)間.........................................................................................83
客戶機(jī)/服務(wù)器結(jié)構(gòu)中的響應(yīng)時(shí)間........................................84
網(wǎng)卡延遲.........................................................................84
發(fā)送延遲.........................................................................84
公共網(wǎng)絡(luò)延遲.................................................................84
排隊(duì)時(shí)延與路由/交換設(shè)備的利用率...................85
服務(wù)器延遲.....................................................................85
吞吐量與帶寬、容量和鏈路利用率.............................................................85
帶寬.................................................................................................86
容量.................................................................................................88
鏈路利用率.....................................................................................88
吞吐量.............................................................................................88
練習(xí).................................................................................................................88
第二節(jié) 估測通信流量...........................................................................................89
流量方向.........................................................................................................89
對等通信.........................................................................................90
5
Page 6 客戶機(jī)/服務(wù)器的通信............................................................................90
通信邊界............................................................