公司局域網(wǎng)組建與配置實(shí)例(文件)
【正文】 高優(yōu)化的，可靠的傳輸結(jié)構(gòu)。該層的設(shè)備主要目的是提供一個(gè)邊界的定義，以在其內(nèi)進(jìn)行分組處理。該層的交換機(jī)運(yùn)行在第二層和第三層上。拓?fù)浣Y(jié)構(gòu)如圖1所示為企業(yè)內(nèi)部的網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)圖。方案實(shí)施圖2所示為根據(jù)網(wǎng)絡(luò)應(yīng)用和功能，在模擬器上搭建的某小型企業(yè)內(nèi)部拓?fù)渚W(wǎng)絡(luò)環(huán)境。對(duì)于主干（backbone）區(qū)域，負(fù)責(zé)在區(qū)域之間分發(fā)鏈路狀態(tài)信息。這樣，當(dāng)網(wǎng)絡(luò)中的某條鏈路狀態(tài)發(fā)生變化時(shí)，此鏈路所在的域中的每個(gè)路由器重新計(jì)算本域路由表，而其它域中路由器只需修改其路由表中的相應(yīng)條目而無須重新計(jì)算整個(gè)路由表，節(jié)省了計(jì)算路由表的時(shí)間。每個(gè)路由器都維護(hù)一個(gè)用于跟蹤網(wǎng)絡(luò)鏈路狀態(tài)的數(shù)據(jù)庫，然后各路由器的路由選擇就是基于鏈路狀態(tài)，通過Dijkastra算法建立起來最短路徑樹，用該樹跟蹤系統(tǒng)中的每個(gè)目標(biāo)的最短路徑。配置步驟：網(wǎng)絡(luò)設(shè)備基本配置(1)S2126GA1交換機(jī)基本配置Hostname S2126GA1Vlan 1ExitVlan 11 ！劃分VLAN11Exit Vlan 12 ！劃分VLAN12ExitVlan 13 ！劃分VLAN13ExitVlan 14 ！劃分VLAN14ExitVlan 15 ！劃分VLAN15ExitEnable secret level 1 0 star !設(shè)置telnet密碼Enable secret level 15 0 star !設(shè)置特權(quán)模式密碼Interface range fastEthernet 0/14Swithport access vlan 11Exit !將f0/14號(hào)端口劃分到vlan11里Interface range fastEthernet 0/58Swithport access vlan 12Exit !將f0/58號(hào)端口劃分到vlan12里Interface range fastEthernet 0/912Swithport access vlan 13Exit !將f0/912號(hào)端口劃分到vlan13里Interface range fastEthernet 0/1316Swithport access vlan 14Exit !將f0/1316號(hào)端口劃分到vlan14里Interface range fastEthernet 0/1720Swithport access vlan 15Exit !將f0/1720號(hào)端口劃分到vlan15里Interface range fastEthernet 0/21Swithport mode trunkExit !將f0/21號(hào)端口設(shè)置為trunk模式Interface vlan 1 Ip address No shutExit !設(shè)置管理IP地址Ip defaultgateway End S2126GA1(2)S2126GB1交換機(jī)基本配置Hostname S2126GB1Vlan 1ExitVlan 16 ！劃分VLAN16Exit Vlan 17 ！劃分VLAN17ExitVlan 18 ！劃分VLAN18ExitVlan 19 ！劃分VLAN19ExitVlan 20 ！劃分VLAN20ExitEnable secret level 1 0 star !設(shè)置telnet密碼Enable secret level 15 0 star !設(shè)置特權(quán)模式密碼Interface range fastEthernet 0/14Swithport access vlan 16Exit !將f0/14號(hào)端口劃分到vlan16里Interface range fastEthernet 0/58Swithport access vlan 17Exit !將f0/58號(hào)端口劃分到vlan17里Interface range fastEthernet 0/912Swithport access vlan 18Exit !將f0/912號(hào)端口劃分到vlan18里Interface range fastEthernet 0/1316Swithport access vlan 19Exit !將f0/1316號(hào)端口劃分到vlan19里Interface range fastEthernet 0/1720Swithport access vlan 20Exit !將f0/1720號(hào)端口劃分到vlan20里Interface range fastEthernet 0/21Swithport mode trunkExit !將f0/21號(hào)端口設(shè)置為trunk模式Interface vlan 1 Ip address No shutExit !設(shè)置管理IP地址Ip defaultgateway End S2126GB1(3)S2126GC1交換機(jī)基本配置Hostname S2126GC1Vlan 1ExitVlan 21 ！劃分VLAN21Exit Vlan 22 ！劃分VLAN22ExitVlan 23 ！劃分VLAN23ExitVlan 24 ！劃分VLAN24ExitVlan 25 ！劃分VLAN25ExitEnable secret level 1 0 star !設(shè)置telnet密碼Enable secret level 15 0 star !設(shè)置特權(quán)模式密碼Interface range fastEthernet 0/14Swithport access vlan 21Exit !將f0/14號(hào)端口劃分到vlan21里Interface range fastEthernet 0/58Swithport access vlan 22Exit !將f0/58號(hào)端口劃分到vlan22里Interface range fastEthernet 0/912Swithport access vlan 23Exit
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