三層交換機(jī)實(shí)現(xiàn)不同網(wǎng)段的主機(jī)通信.doc

三層交換機(jī)實(shí)現(xiàn)不同網(wǎng)段的主機(jī)通信【實(shí)驗(yàn)名稱】辦公廣播網(wǎng)處理，三層交換機(jī)實(shí)現(xiàn)不同VLAN之間的通信【實(shí)驗(yàn)?zāi)康摹坑萌龑咏粨Q機(jī)將多臺(tái)計(jì)算機(jī)連接起來，構(gòu)建一個(gè)小型的辦公網(wǎng)，且實(shí)現(xiàn)vlan間的通信。技術(shù)原理： 三層交換機(jī)具有網(wǎng)絡(luò)層的功能，實(shí)現(xiàn)vlan相互訪問的原理是：利用3層交換機(jī)的路由功能，通過識(shí)別數(shù)據(jù)包的IP地址，查找路由表進(jìn)行進(jìn)行選路轉(zhuǎn)發(fā)。三層交換機(jī)利用直接路由可以實(shí)現(xiàn)不同vlan之間的互相訪問。三層交換機(jī)給接口配置IP地址，采用SVI (交換虛擬接口)的方式實(shí)現(xiàn)VLAN間互連，SVI是指為交換機(jī)中的VLAN創(chuàng)建虛擬接口，并且配置IP地址?！颈尘懊枋觥俊拘枨蠓治觥俊緦?shí)驗(yàn)拓?fù)洹俊緦?shí)驗(yàn)設(shè)備】三層交換機(jī)1臺(tái)PC機(jī)3臺(tái)【實(shí)驗(yàn)步驟】按照網(wǎng)絡(luò)拓?fù)溥B接好網(wǎng)絡(luò)設(shè)備，然后進(jìn)行如下配置SwitchSwitchenableSwitch#config terminalEnter configuration commands, one per line. End with CNTL/Z.Switch(config)#vlan 10Switch(config-vlan)#name xiaoxueSwitch(config-vlan)#exitSwitch(config)#vlan 20Switch(config-vlan)#name chuzhongSwitch(config-vlan)#exitSwitch(config)#vlan 30Switch(config-vlan)#name gaozhongSwitch(config-vlan)#exitSwitch(config)#interface fa0/1Switch(config-if)#switchport mode access Switch(config-if)#switchport access vlan 10%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan2, changed state to downSwitch(config-if)#exitSwitch(config)#interface fa0/2Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 20%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan3, changed state to doSwitch(config-if)#exitSwitch(config)#interface fa0/3Switch(config-if)#switchport mode accessSwitch(config-if)#switchport access vlan 30%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan4, changed state to downSwitch(config-if)#exitSwitch(config)#interface vlan 10%LINK-5-CHANGED: Interface Vlan10, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan10, changed state to upSwitch(config-if)#ip address 192.168.10.1 255.255.255.0% 192.168.10.0 overlaps with Vlan2Switch(config-if)#exitSwitch(config)#interface vlan 20%LINK-5-CHANGED: Interface Vlan20, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan20, changed state to upSwitch(config-if)#ip address 192.168.20.1 255.255.255.0% 192.168.20.0 overlaps with Vlan3Switch(config-if)#exitSwitch(config)#interface vlan 30%LINK-5-CHANGED: Interface Vlan30, changed state to up%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan30, changed state to upSwitch(config-if)#ip address 192.168.30.1 255.255.255.0% 192.168.30.0 overlaps with Vlan4Switch(config-if)#exitSwitch(config)#exitSwitch#%SYS-5-CO