Cisco VTP中繼協(xié)議配置實(shí)踐1. VTP協(xié)議：VLAN中繼協(xié)議，VTP, VLAN TRUNKING PROTOCOL是CISCO專用協(xié)議，大多數(shù)交 換機(jī)都支持該協(xié)議VTP負(fù)責(zé)在VTP域內(nèi)同步VLAN信息，這樣就不必在每個交換上配置 相同的VLAN信息VTP還提供一種映射方案，以便通信流能跨越混合介質(zhì)的骨干VTP 最重要的作用是，將進(jìn)行變動時可能會出現(xiàn)在的配置不一致性降至最低不過，VTP也有 一些缺點(diǎn)，這些缺點(diǎn)通常都與生成樹協(xié)議有關(guān)知識點(diǎn)：VLAN中繼協(xié)議(VTP)利用第2層中繼幀，在一組交換機(jī)之間進(jìn)行VLAN通信.VTP從 一個中心控制點(diǎn)開始，維護(hù)整個企業(yè)網(wǎng)上VLAN的添加和重命名工作，確保配置的一致性2. 設(shè)計思路及需求：1、 Cisco C3560配置成為VTP server并設(shè)置VTP管理域名稱CCTV2、 Cisco C3560 創(chuàng)建三個 VLAN(VLAN10 VLAN20 VLAN 30)并配置每個 VLAN 動 態(tài)獲取IP3、 Cisco C3650 分配三個端口 fa 0/1-3 設(shè)置為 trunk4、 三臺 Cisco C2960 配置成為 VTP client5、 C2960_01 分配 fa 0/1-5 給 VLAN 10，并設(shè)置 faO/24 端口為 trunk6、 C2960_02 分配 fa 0/1-5 給 VLAN 20，并設(shè)置 fa0/24 端口為 trunk7、 C2960_03 分配 fa 0/1-5 給 VLAN 30，并設(shè)置 fa0/24 端口為 trunk3. 網(wǎng)絡(luò)拓?fù)鋱D：faO/1faO/24□□：6D r 估0/2feO/242960I24TT C296B_03 faO/1PC-PT vlan30_dhcpfiaO/24)_01 faO/12960I24TT C29FOPT vlanl0_dh cpPC-PT vlan20_dhcpw296DI24TTC2963_O2faO/14.配置(1) Cisco C3560 配置如下：##設(shè)置VTP域名名稱及VTP ServerC3560>e nableC3560#vla n databaseC3560(vla n)#vtp doma in CCTVC3560(vla n)#vtp server##創(chuàng)建 VLAN 10 VLAN 20 VLAN 30C3560(vla n)#vla n 10 n ame VLAN10C3560(vlan)#vlan 20 name VLAN20C3560(vlan)#vlan 30 name VLAN30C3560(vla n)#exit##VLAN配置IP地址3560#c on figu re terminalC3560(co nfig)#i nter face vla n 10C3560(config-if)#ip address 192.168.10.1 255.255.255.0C3560(c on fig-if)#exitC3560(co nfig)#i nter face vla n 20C3560(c on fig-if)#ip add ress 192.168.20.1 255.255.255.0C3560(c on fig-if)#exitC3560(co nfig)#i nter face vla n 30C3560(c on fig-if)#ip add ress 192.168.30.1 255.255.255.0C3560(c on fig-if)#exit##配置DCHPC3560(c on fig)#se rvice dhcpC3560(config)#ip dhcp pool vlan10_dhcpC3560(dhcp-co nfig)# netwo rk 192.168.10.0 255.255.255.0C3560(dhcp-co nfig)#default-route r 192.168.10.1C3560(dhcp-c on fig)#d ns-se rver 114.114.114.114C3560(dhcp-co nfig)#exitC3560(config)#ip dhcp excluded-address 192.168.10.1 192.168.10.10C3560(c on fig)#ip dhcp pool vla n20_dhcpC3560(dhcp-co nfig)# netwo rk 192.168.20.0 255.255.255.0C3560(dhcp-co nfig)#default-route r 192.168.20.1C3560(dhcp-c on fig)#d ns-se rver 114.114.114.114C3560(dhcp-co nfig)#exitC3560(config)#ip dhcp excluded-address 192.168.20.1 192.168.20.10C3560(c on fig)#ip dhcp pool vla n30_dhcpC3560(dhcp-co nfig)# netwo rk 192.168.30.0 255.255.255.0C3560(dhcp-co nfig)#default-route r 192.168.30.1C3560(dhcp-c on fig)#d ns-se rver 114.114.114.114C3560(dhcp-co nfig)#exitC3560(config)#ip dhcp excluded-address 192.168.30.1 192.168.30.10 ##設(shè)置三個端口 fastEthernet 0/1-3 為 trunk知識點(diǎn)：VLAN的封裝類型，目前有ISL和802.1q(dot1q)兩種協(xié)議，ISL是思科私有的 VLAN封裝協(xié)議，思科部分交換機(jī)支持ISL協(xié)議，使用該協(xié)議能提高VLAN傳輸性能。

C3560(c on fig)#i nter face range fastEthe rnet 0/1-3C3560(config-if-range)#switchport trunk encapsulation ?dot1q Inter face uses only 802.1q trunking en capsulati on whe n trunkingC3560(config-if-range)#switchport trunk encapsulation dot1qC3560(c on fig-if-ran ge)#switchpo rt mode trunkC3560(c on fig-if-ran ge)#exit##開啟三層路由功能C3560>e nableC3560#c on figu re terminalC3560(c on fig)#ip ro ut ing##顯示與維護(hù)C3560#show runnin g-c onfigC3560#show vtp status(2) Cisco C296O_01 配置如下：##設(shè)置VTP域名名稱及VTP ClientC2960_01>e nableC2960_01#vla n databaseC2960_01(vla n)#vtp doma in CCTVC2960_01(vlan)#vtp clientC2960_01(vla n)#exit## 分配 fa0/1-5 端口給 VLAN 10C2960_01#c on figu re te rminalC2960_01(co nfig)#i nte rface ran ge fastEthe rnet 0/1-5C2960_01(config-if-range)#switchport access vlan 10C2960_01(c on fig-if-ran ge)#switchpo rt mode accessC2960_01(c on fig-if-ran ge)# no shutdow nC2960_01(c on fig-if-ran ge)#exit## 設(shè)置 fa0/24 端口為 trunkC2960_01(co nfig)#i nte rface fastEthe rnet 0/24C2960_01(c on fig-if)#switchp ort mode trunkC2960_01(c on fig-if)# no shutdow nC2960_01(c on fig-if)#exit##顯示與維護(hù)C2960_01#show via nC2960_01#show runnin g-co nfigC2960_01#show vtp status(3) Cisco C2960_02 配置如下：##設(shè)置VTP域名名稱及VTP ClientC2960_02>e nableC2960_02#vla n databaseC2960_02(vla n)#vtp doma in CCTVC2960_02(vla n)#vtp clie ntC2960_02(vla n)#exit## 分配 fa0/1-5 端口給 VLAN 10C2960_02#c onfigure terminalC2960_02(c on fig)#i nte rface range fastEthe rnet 0/1-5C2960_02(config-if-range)#switchport access vlan 10C2960_02(c on fig-if-ran ge)#switchpo rt mode accessC2960_02(c on fig-if-ran ge)# no shutdow nC2960_02(c on fig-if-ran ge)#exit## 設(shè)置 fa0/24 端口為 trunkC2960_02(co nfig)#i nte rface fastEthe rnet 0/24C2960_02(c on fig-if)#switchpo rt mode trunkC2960_02(c on fig-if)# no shutdow nC2960_02(c on fig-if)#exit##顯示與維護(hù)C2960_02#show via nC2960_02#show runnin g-c onfigC2960_01#show vtp status(4) Cisco C296O_03 配置如下：##設(shè)置VTP域名名稱及VTP ClientC2960_03>e nableC2960_03#vla n databaseC2960_03(vla n)#vtp doma in CCTVC2960_03(vla n)#vtp clie ntC2960_03(vla n)#exit## 分配 fa0/1-5 端口給 VLAN 10C2960_03#c onfigure terminalC2960_03(c on fig)#i nte rface range fastEthe rnet 0/1-5C2960_03(config-if-range)#switchport access vlan 10C2960_03(c on fig-if-ran ge)#switchpo rt mode accessC2960_03(c on fig-if-ran ge)# no shutdow nC2960_03(c on fig-if-ran ge)#exit## 設(shè)置 fa0/24 端口為 trunkC2960_03(co nfig)#i nte rface fastEthe rnet 0/24C2960_03(c on fig-if)#switchpo rt mode trunkC2960_03(c on fig-if)# no shutdow nC2960_03(co nfig-if)#exit##顯示與維護(hù)C2960_03#show vla nC2960_03#show runnin g-c onfigC2960_03#show vtp status。