Cisco VTP中继协议配置实践

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1、Cisco VTP中继协议配置实践 1. VTP协议： VLAN中继协议，VTP, VLAN TRUNKING PROTOCOL是CISCO专用协议，大多数交 换机都支持该协议。VTP负责在VTP域内同步VLAN信息，这样就不必在每个交换上配置 相同的VLAN信息。VTP还提供一种映射方案，以便通信流能跨越混合介质的骨干。VTP 最重要的作用是，将进行变动时可能会出现在的配置不一致性降至最低。不过，VTP也有 一些缺点，这些缺点通常都与生成树协议有关。 知识点： VLAN中继协议(VTP)利用第2层中继帧，在一组交换机之间进行VLAN通信.VTP从 一个中心控制点开始，维护整个企业网上

2、VLAN的添加和重命名工作，确保配置的一致性。 2. 设计思路及需求： 1、 Cisco C3560配置成为VTP server并设置VTP管理域名称CCTV 2、 Cisco C3560 创建三个 VLAN(VLAN10 VLAN20 VLAN 30)并配置每个 VLAN 动 态获取IP 3、 Cisco C3650 分配三个端口 fa 0/1-3 设置为 trunk 4、 三台 Cisco C2960 配置成为 VTP client 5、 C2960_01 分配 fa 0/1-5 给 VLAN 10，并设置 faO/24 端口为 trunk 6、 C2960_02 分配 fa

3、 0/1-5 给 VLAN 20，并设置 fa0/24 端口为 trunk 7、 C2960_03 分配 fa 0/1-5 给 VLAN 30，并设置 fa0/24 端口为 trunk 3. 网络拓扑图： faO/1 faO/24 □ □ ：6D r 估0/2 feO/24 2960I24TT C296B_03 faO/1 PC-PT vlan30_dhcp fiaO/24 )_01 faO/1 2960I24TT C29 FOPT vlanl0_dh cp PC-PT vlan20_dhcp w 296DI24TT C2963_O2 faO/1

4、 4.配置 (1) Cisco C3560 配置如下： ##设置VTP域名名称及VTP Server C3560>e nable C3560#vla n database C3560(vla n)#vtp doma in CCTV C3560(vla n)#vtp server ##创建 VLAN 10 VLAN 20 VLAN 30 C3560(vla n)#vla n 10 n ame VLAN10 C3560(vlan)#vlan 20 name VLAN20 C3560(vlan)#vlan 30 name VLAN30 C3560(vla n)#exit ##

5、VLAN配置IP地址 3560#c on figu re terminal C3560(co nfig)#i nter face vla n 10 C3560(config-if)#ip address 192.168.10.1 255.255.255.0 C3560(c on fig-if)#exit C3560(co nfig)#i nter face vla n 20 C3560(c on fig-if)#ip add ress 192.168.20.1 255.255.255.0 C3560(c on fig-if)#exit C3560(co nfig)#i nter

6、 face vla n 30 C3560(c on fig-if)#ip add ress 192.168.30.1 255.255.255.0 C3560(c on fig-if)#exit ##配置DCHP C3560(c on fig)#se rvice dhcp C3560(config)#ip dhcp pool vlan10_dhcp C3560(dhcp-co nfig)# netwo rk 192.168.10.0 255.255.255.0 C3560(dhcp-co nfig)#default-route r 192.168.10.1 C3560(dhcp-

7、c on fig)#d ns-se rver 114.114.114.114 C3560(dhcp-co nfig)#exit C3560(config)#ip dhcp excluded-address 192.168.10.1 192.168.10.10 C3560(c on fig)#ip dhcp pool vla n20_dhcp C3560(dhcp-co nfig)# netwo rk 192.168.20.0 255.255.255.0 C3560(dhcp-co nfig)#default-route r 192.168.20.1 C3560(dhcp-c on

8、fig)#d ns-se rver 114.114.114.114 C3560(dhcp-co nfig)#exit C3560(config)#ip dhcp excluded-address 192.168.20.1 192.168.20.10 C3560(c on fig)#ip dhcp pool vla n30_dhcp C3560(dhcp-co nfig)# netwo rk 192.168.30.0 255.255.255.0 C3560(dhcp-co nfig)#default-route r 192.168.30.1 C3560(dhcp-c on fig)#

9、d ns-se rver 114.114.114.114 C3560(dhcp-co nfig)#exit C3560(config)#ip dhcp excluded-address 192.168.30.1 192.168.30.10 ##设置三个端口 fastEthernet 0/1-3 为 trunk 知识点：VLAN的封装类型，目前有ISL和802.1q(dot1q)两种协议，ISL是思科私有的 VLAN封装协议，思科部分交换机支持ISL协议，使用该协议能提高VLAN传输性能。 C3560(c on fig)#i nter face range fastEthe rnet 0

10、/1-3 C3560(config-if-range)#switchport trunk encapsulation ? dot1q Inter face uses only 802.1q trunking en capsulati on whe n trunking C3560(config-if-range)#switchport trunk encapsulation dot1q C3560(c on fig-if-ran ge)#switchpo rt mode trunk C3560(c on fig-if-ran ge)#exit ##开启三层路由功能 C3560>e

11、 nable C3560#c on figu re terminal C3560(c on fig)#ip ro ut ing ##显示与维护 C3560#show runnin g-c onfig C3560#show vtp status (2) Cisco C296O_01 配置如下： ##设置VTP域名名称及VTP Client C2960_01>e nable C2960_01#vla n database C2960_01(vla n)#vtp doma in CCTV C2960_01(vlan)#vtp client C2960_01(vla n)#ex

12、it ## 分配 fa0/1-5 端口给 VLAN 10 C2960_01#c on figu re te rminal C2960_01(co nfig)#i nte rface ran ge fastEthe rnet 0/1-5 C2960_01(config-if-range)#switchport access vlan 10 C2960_01(c on fig-if-ran ge)#switchpo rt mode access C2960_01(c on fig-if-ran ge)# no shutdow n C2960_01(c on fig-if-ran ge

13、)#exit ## 设置 fa0/24 端口为 trunk C2960_01(co nfig)#i nte rface fastEthe rnet 0/24 C2960_01(c on fig-if)#switchp ort mode trunk C2960_01(c on fig-if)# no shutdow n C2960_01(c on fig-if)#exit ##显示与维护 C2960_01#show via n C2960_01#show runnin g-co nfig C2960_01#show vtp status (3) Cisco C2960_02

14、配置如下： ##设置VTP域名名称及VTP Client C2960_02>e nable C2960_02#vla n database C2960_02(vla n)#vtp doma in CCTV C2960_02(vla n)#vtp clie nt C2960_02(vla n)#exit ## 分配 fa0/1-5 端口给 VLAN 10 C2960_02#c onfigure terminal C2960_02(c on fig)#i nte rface range fastEthe rnet 0/1-5 C2960_02(config-if-range)#

15、switchport access vlan 10 C2960_02(c on fig-if-ran ge)#switchpo rt mode access C2960_02(c on fig-if-ran ge)# no shutdow n C2960_02(c on fig-if-ran ge)#exit ## 设置 fa0/24 端口为 trunk C2960_02(co nfig)#i nte rface fastEthe rnet 0/24 C2960_02(c on fig-if)#switchpo rt mode trunk C2960_02(c on fig-if

16、)# no shutdow n C2960_02(c on fig-if)#exit ##显示与维护 C2960_02#show via n C2960_02#show runnin g-c onfig C2960_01#show vtp status (4) Cisco C296O_03 配置如下： ##设置VTP域名名称及VTP Client C2960_03>e nable C2960_03#vla n database C2960_03(vla n)#vtp doma in CCTV C2960_03(vla n)#vtp clie nt C2960_03(vl

17、a n)#exit ## 分配 fa0/1-5 端口给 VLAN 10 C2960_03#c onfigure terminal C2960_03(c on fig)#i nte rface range fastEthe rnet 0/1-5 C2960_03(config-if-range)#switchport access vlan 10 C2960_03(c on fig-if-ran ge)#switchpo rt mode access C2960_03(c on fig-if-ran ge)# no shutdow n C2960_03(c on fig-if-ran ge)#exit ## 设置 fa0/24 端口为 trunk C2960_03(co nfig)#i nte rface fastEthe rnet 0/24 C2960_03(c on fig-if)#switchpo rt mode trunk C2960_03(c on fig-if)# no shutdow n C2960_03(co nfig-if)#exit ##显示与维护 C2960_03#show vla n C2960_03#show runnin g-c onfig C2960_03#show vtp status