思科交换机配置

1、交换机管理VLAN，地址，用户和密码Switchenable #进入特权模式Switch#configure terminal #进入全局模式Switch(config)#hostname yyyy #命名yyyySwitch(config)#enable password 123 #弱口令Switch(config)#enable secret 123456 #使能密码Switch(config)#interface vlan 1 #默认VLANSwitch(config-if)#no shoutdown #使VLAN处于运行中Switch(config-if)# ip address 54

2、 Switch(config-if)#exitSwitch (config)#line vty 0 2 #开启TELNET登录，同时登录2人Switch (config-line)#password 123456Switch (config-line)#login telnet登录：同ip段 登管理地址2、建立vlanSwitch#configSwitch#configure terSwitch#configure terminal Switch(config)#vlan 80 #建立80 vlan,/也可以不建vlan直接加入vlan，系统自己创建Switch#interface vlan

3、80 #进入vlanSwitch(config-vlan)#exitSwitch(config)#interface range f0/1-5 #进入到1-5端口Switch(config-if-range)#switchport mode access Switch(config-if-range)#switchport access vlan 80 #1-5端口加入到vlan 80中Switch(config-if-range)#exitSwitch(config)#exit双工模式Switch(config)#interface range f0/1-5 Switch(config)#d

4、uplex full 3、恢复出厂设置：SwitchenSwitch#erase startup-configuerSwitch#reload在特权模式下查看配置Switch#show versionSwitch# show vlanSwitch# show running-configuerSwitch# show interface fastenther 0/1Switch# show mac-address-tableSwitch# show ip routeinterface Port-channel 1 /进入虚拟的以太通道组1switchport trunk encapsulati

5、on dot1q /给这个接口的trunk封装为802.1Q的帧格式 switchport mode trunk /定义这个接口的工作模式为trunk switchport trunk allowed vlan all /在这个trunk上允许所有的vlan通过 Interface gigabitethernet 0/1 /进入模块0上的吉比特以太口1 channel-group 1 mode on 把这个接口放到快速以太通道组1中port-channel load-balance src-dst-ip /定义快速以太通道组的负载均衡方式（依*源和目的IP的方式）4、删除VLANSwitch(

6、config-if)#no switchport access vlan 80 #先删接口switch(config)#nointvlan20 #再删除配置接口Switch(config)#no vlan 80 #删除VLAN查看端口信息show ip int br5、三层交换机实现不同vlan通信（和单臂路由差不多）6、三层交机开启DHCP地址分配配置路由器配置：interface FastEthernet0/0 ip address ip nat inside duplex auto speed autointerface Vlan1 no ip address shutdownip cl

7、asslessip route 0 ip route 0 ip route 0 ip route 0 ip route 0 ip route 0 access-list 1 permit 55三层交换机的配置：ip dhcp pool vlan20pool network default-router 54 dns-server 8ip dhcp pool vlan30pool network default-router 54 dns-server 8ip dhcp pool vlan60pool network default-router dns-server 8ip dhcp pool

8、 vlan70pool network default-router 54 dns-server 8ip dhcp pool vlan80pool network default-router 54 dns-server 8ip dhcp pool vlan90pool network default-router 54 dns-server 8interface FastEthernet0/1 no switchport ip address 0 duplex auto speed autointerface FastEthernet0/3 switchport access vlan 20

9、 switchport mode accessinterface FastEthernet0/4 switchport access vlan 20 switchport mode access!interface FastEthernet0/5 switchport access vlan 30 switchport mode accessinterface FastEthernet0/6 switchport access vlan 30 switchport mode access!interface FastEthernet0/7 switchport access vlan 60 s

10、witchport mode accessinterface FastEthernet0/8 switchport access vlan 60 switchport mode access!interface FastEthernet0/9 switchport access vlan 70 switchport mode accessinterface FastEthernet0/10 switchport access vlan 70 switchport mode accessinterface FastEthernet0/11 switchport access vlan 70 sw

11、itchport mode accessinterface FastEthernet0/12 switchport access vlan 70 switchport mode accessinterface FastEthernet0/13 switchport access vlan 70 switchport mode accessinterface FastEthernet0/14 switchport access vlan 70 switchport mode accessinterface FastEthernet0/15 switchport access vlan 70 sw

12、itchport mode accessinterface FastEthernet0/16 switchport access vlan 80 switchport mode accessinterface FastEthernet0/17 switchport access vlan 80 switchport mode accessinterface FastEthernet0/18 switchport access vlan 80 switchport mode accessinterface FastEthernet0/19 switchport access vlan 90 sw

13、itchport mode accessinterface FastEthernet0/20 switchport access vlan 90 switchport mode accessinterface Vlan20 ip address 54 interface Vlan30 ip address 54 interface Vlan60 ip address 54 interface Vlan70 ip address 54 interface Vlan80 ip address 54 interface Vlan90 ip address 54 ip classlessip rout

14、e 原文： HYPERLINK /softjc/56600.html /softjc/56600.html7、在交换机上创建聚合端口，形成交换冗余但无环路port-channel分为2类.一类为2层的port-channel.一类为3层的port-channel. 2层的port-channel只需要配physical interface就行了，可以是static access，也可以使trunk，但是必须一样。不需要create port-channel。3层的port-channel要首先create port-channel，然后no switchport把port-channel变成L

15、3 interface，加上IP地址。再进入physical interface，必须no ip address去掉physical interface的IP信息，然后直接channel-group加入EtherChannel就行了example：For L2 static access EtherChannel:Switch# configure terminalSwitch(config)# interface range gigabitethernet0/1 -2Switch(config-if-range)# switchport mode accessSwitch(config-if

16、-range)# switchport access vlan 10Switch(config-if-range)# channel-group 5 mode desirableSwitch(config-if-range)# endFor L2 trunk EtherChannel:Switch# configure terminalSwitch(config)# interface range gigabitethernet0/1 -2Switch(config-if-range)# switchport trunk encapsulation islSwitch(config-if-range)# switchport mode trunkSwitch(config-if-range)# channel-group 5 mode desirableSwitch(config-if-range)# endFor L3 EtherChannel:Switch# configure terminalSwitch(config)# inte