三层交换机开启路由功能命令(三层交换机开启路由功能命令的作用)

华为三层交换机时默认开启路由功能。 开启路由功能命令：ip routing
交换机是交换机，路由是路由，两码事，除非三层交换

具体得看三层交换机型号，路由器自带路由功能不需要命令去开启吧除非是数据中心？思科的三层交换机开启路由命令是iP routing
在全局配置模式下输入ip routing即可。
什么品牌的设备

华为的三层交换机默认是打开路由功能的，需要做的是把VLAN和地址规划了划分VLAN，并描述vlan 1description local-S3600 vlan 2description link-to-wenquanvlan 3description link-to-ruzhouvlan 4description link-to-xiaotunvlan 5description link-to-baofengvlan 6description link-to-pingxivlan 7description link-to-pingnanvlan 8description Uplink-to-Putianvlan 9description link-to-pingxicentre给VLAN 划网关 interface Vlan-interface2description link to wenquan ip address 10.41.77.41 255.255.255.192 interface Vlan-interface3description link to ruzhou ip address 10.41.77.105 255.255.255.192 interface Vlan-interface4description link to xiaotun ip address 10.41.77.169 255.255.255.192 interface Vlan-interface5description link to baofeng ip address 10.41.77.233 255.255.255.192 interface Vlan-interface6description link to pingxi ip address 10.41.78.41 255.255.255.192 interface Vlan-interface7description link to pingnan ip address 10.41.78.105 255.255.255.192 interface Vlan-interface8description uplink to putian ip address 10.41.244.102 255.255.255.252 interface Vlan-interface9description link to pingxicentre ip address 10.41.80.233 255.255.255.192给VLAN 指定端口interface Ethernet1/0/2description link to wenquan port access vlan 2interface Ethernet1/0/3description link to ruzhou port access vlan 3interface Ethernet1/0/4description link to xiaotun port access vlan 4interface Ethernet1/0/5description link to baofeng port access vlan 5interface Ethernet1/0/6description link to pingxi port access vlan 6 interface Ethernet1/0/7description link to pingnan port access vlan 7interface Ethernet1/0/8description uplink to putian port access vlan 8interface Ethernet1/0/9 to Ethernet1/0/24description link to pingxicentre port access vlan 9配置路由协议 //（1）用RIP配动态路由 ripnetwork 10.41.77.41network 10.41.77.105network 10.41.77.169network 10.41.77.233network 10.41.78.41network 10.41.78.105network 10.41.80.233network 10.41.244.102
配置前首先要确定型号后缀是SI还是EI，EI的支持所有协议，SI的不支持OSPS动态协议，因此SI配置路由时可以使用静态协议和RIP协议，具体配置如下： system-view //进入系统视图[H3C]display current-configuration //显示当前配置 //以下开始配置//第一步：划分VLAN，并描述vlan 1description local-S3600vlan 2description link-to-wenquanvlan 3description link-to-ruzhouvlan 4description link-to-xiaotunvlan 5description link-to-baofengvlan 6description link-to-pingxivlan 7description link-to-pingnanvlan 8description Uplink-to-Putianvlan 9description link-to-pingxicentre//第二步：给VLAN 划网关interface Vlan-interface2description link to wenquan ip address 10.41.77.41 255.255.255.192 interface Vlan-interface3description link to ruzhou ip address 10.41.77.105 255.255.255.192 interface Vlan-interface4description link to xiaotun ip address 10.41.77.169 255.255.255.192 interface Vlan-interface5description link to baofeng ip address 10.41.77.233 255.255.255.192 interface Vlan-interface6description link to pingxi ip address 10.41.78.41 255.255.255.192 interface Vlan-interface7description link to pingnan ip address 10.41.78.105 255.255.255.192 interface Vlan-interface8description uplink to putian ip address 10.41.244.102 255.255.255.252 interface Vlan-interface9description link to pingxicentre ip address 10.41.80.233 255.255.255.192//第三步：给VLAN 指定端口interface Ethernet1/0/2description link to wenquan port access vlan 2interface Ethernet1/0/3description link to ruzhou port access vlan 3interface Ethernet1/0/4description link to xiaotun port access vlan 4interface Ethernet1/0/5description link to baofeng port access vlan 5interface Ethernet1/0/6description link to pingxi port access vlan 6 interface Ethernet1/0/7description link to pingnan port access vlan 7interface Ethernet1/0/8description uplink to putian port access vlan 8interface Ethernet1/0/9 to Ethernet1/0/24description link to pingxicentre port access vlan 9//第四步：配置路由协议 //（1）用RIP配动态路由 ripnetwork 10.41.77.41network 10.41.77.105network 10.41.77.169network 10.41.77.233network 10.41.78.41network 10.41.78.105network 10.41.80.233 network 10.41.244.102
呵呵，华为的三层交换机默认打开路由功能的，你要做的是把VLAN和地址规划了。

摘要三层交换机如何开启路由，只有开启了路由，才能配置和查看相应的路由表，这里注意了：只有三层交换机才能开启路由，二层交换机是不能开启路由的，下面由小编介绍下具体操作吧。

三层交换机开启路由功能的命令是：Switch>enSwitch#conf tEnter configuration commands, one per line.  End with CNTL/Z.Switch(config)#no ip domain-looSwitch(config)#ip routingSwitch(config)#int vlanSwitch(config)#int vlan 10（这个是你的第一个VLAN）Switch(config-if)#ip add A.B.C.D(这里要写成网关地址)Switch(config-if)#int vlan 20（这里是你的第二个VLAN）Switch(config-if)#ip add A.B.C.D(这里要写成网关地址)如果不写这些，你的接口都是access接口，没有ip地址，开了也没有用，因为找不到网关，整个3层交换上也没有个ip，所以不可能会出现路由。
Switch>en Switch#conf tEnter configuration commands, one per line.End with CNTL/Z.Switch(config)#no ip domain-looSwitch(config)#ip routingSwitch(config)#int vlanSwitch(config)#int vlan 10（这个是你的第一个VLAN）Switch(config-if)#ip add A.B.C.D(这里要写成网关地址)Switch(config-if)#int vlan 20（这里是你的第二个VLAN）Switch(config-if)#ip add A.B.C.D(这里要写成网关地址) 如果不写这些，你的接口都是access接口，没有ip地址，开了也没有用，因为找不到网关，整个3层交换上也没有个ip，所以不可能会出现路由。