交换机/路由器常用操作简介

创建vlan

将端口划入vlan

查看vlan

删除vlan

配置vlan的网关、子网掩码、和DHCP中继

使用ssh连接交换机管理网口后：

1.创建vlan：

#进入配置状态
<S100> system-view              #可以简写：sys
#创建vlan
[s100]vlan vlan-id
## 如果vlan-id不存在则创建该vlan
## 批量创建vlan：
[s100]vlan batch vlan-id1 to vlan-id2
[s100]quit                     ##或ctrl + z
[s100]save
[s100]quit

2.将端口划入vlan：

<S100> system-view
[s100]vlan vlan-id         ##选择vlan 并进入配置状态
[s100]port Gx/y/z          ##G表示光纤网口 x模块号，y层号，z端口号
[s100]quit                     ##或ctrl + z
[s100]save
[s100]quit

3.查看vlan：

3.1查看当前一共有多少vlan

<S100> system-view
[s100] display vlan     ##可简写dis vlan

3.2 查看某vlan下有多少交换机端口：

[s100] display vlan vlan-id
## 或通过以下命令查配置文件

3.3 查看交换机端口状态：

## 查看所有端口
[s100] display interface brief
## 查看某端口信息
[s100]display interface G0/0/12
## 查看交换机端口mac
[s100]display mac-address
##查看arp表项：
[s100]display arp

4.删除vlan

## 删除一个vlan
<S100> system-view
[s100] undo vlan vlan-id
## 删除多个vlan
[s100] undo vlan batch vlan-id1 to vlan-id2

*遇到过的问题：

[s100]undo vlan 100
Error: The VLAN has a L3 interface. Please delete it first.
##原因为为要删除的vlan配置了ip地址导致，如vlan编号为100：
## 解决：
[s100]display current-configuration
##看到：
interface Vlanif100
ip address 10.101.1.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 192.168.10.203
##输入
[s100]interface Vlanif 100
[s100-Vlanif100]dis this
##看到以下信息：
#
interface Vlanif100
ip address 10.101.1.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 192.168.10.203
#
return
[s100]undo ip address
[s100]undo dhcp select
[s100]display this
#
interface Vlanif100
#
return
[s100]undo interface Vlanif 100
[s100]undo vlan 100

5.给vlan配置网关、子网掩码、dhcp中继

## 例：
## 创建vlan2
## 配置网关：192.168.10.1，子网掩码：255.255.255.0
## 配置中继的dhcp-server为：192.168.10.123
<S100> system-view
[s100] vlan 2
[s100-vlan2]interface vlanif 2
[s100-Vlanif2]ip addr 192.168.10.1 255.255.255.0
[s100-Vlanif2]dhcp select relay
[s100-Vlanif2]dhcp relay server-ip 192.168.10.123
[s100-Vlanif2]display this
#
interface Vlanif2
ip address 192.168.10.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 192.168.10.123
#
return