coolboshi
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发表于:2008-4-25 10:51
标题：交换机802.1q vlan 的配置方法
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配置VLAN
创建、修改一个VLAN
步骤如下：
song#configure terminal
！进入全局模式
Enter configuration commands, one per line. End with CNTL/Z.
song(config)#vlan 2
! 输入一个vlan id，如果输入的是一个新的vlan id，则交换机会创建一个vlan，如果输入的是已经存在的vlan id，则修改相应的vlan。在此是创建一个vlan号为2的。并进入vlan 2修改
2006-03-14 10:13:53 @5-CONFIG:Configured from outband
song(config-vlan)#name vlan2name
！设置vlan 2的名字为vlan2name
2006-03-14 10:14:09 @5-CONFIG:Configured from outband
song(config-vlan)#end
！退回到特权模式
2006-03-14 10:14:14 @5-CONFIG:Configured from outband
song#show vlan id 2
！查看vlan 2的信息
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
2 vlan2name active
song#wr
！保存当前所有设置
Building configuration...
[OK]
如果您想把vlan的名字改回缺省名字，如下配置
song# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
song(config)#vlan 2
2006-03-14 10:22:56 @5-CONFIG:Configured from outband
song(config-vlan)#no name
！将vlan 2的名字改为缺省名字
2006-03-14 10:22:59 @5-CONFIG:Configured from outband
song(config-vlan)#end
2006-03-14 10:23:09 @5-CONFIG:Configured from outband
song#show vlan id 2
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
2 VLAN0002 active
删除一个VLAN
步骤如下：
song# configure terminal
！进入全局模式
Enter configuration commands, one per line. End with CNTL/Z.
song(config)# no vlan 2
！输入一个vlan id。删除它
2006-03-14 10:27:34 @5-CONFIG:Configured from outband
song(config)# end
！退回到特权模式
2006-03-14 10:27:36 @5-CONFIG:Configured from outband
song# show vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1 ,Fa0/2 ,Fa0/3 ,Fa0/4
Fa0/5 ,Fa0/6 ,Fa0/7 ,Fa0/8
Fa0/9 ,Fa0/10,Fa0/11,Fa0/12
Fa0/13,Fa0/14,Fa0/15,Fa0/16
Fa0/17,Fa0/18,Fa0/19,Fa0/20
Fa0/21,Fa0/22,Fa0/23,Fa0/24
！检查一下是否删除vlan 2
song#wr
！保存
Building configuration...
[OK]
向VLAN分配Access口
步骤如下：
song# configure terminal
！进入全局配置模式
Enter configuration commands, one per line. End with CNTL/Z.
2006-03-14 10:57:54 @5-CONFIG:Configured from outband
song(config)# interface fastEthernet 0/3
！输入想要加入vlan的interface id
2006-03-14 10:57:57 @5-CONFIG:Configured from outband
song(config-if)# switchport mode access
!定义该接口的VLAN成员类型
2006-03-14 10:58:18 @5-CONFIG:Configured from outband
song(config-if)#switchport access vlan 3
！将这个端口分配到vlan 3中
2006-03-14 10:58:32 @5-CONFIG:Configured from outband
%Warning : Access VLAN does not exist. Creating vlan 3
song(config-if)#end
！退回到特权模式
2006-03-14 10:58:37 @5-CONFIG:Configured from outband
song# show interfaces fastEthernet 0/3 switchport
Interface Switchport Mode Access Native Protected VLAN lists
---------- ---------- --------- ------- -------- --------- ---------------------
Fa0/3 Enabled Access 3 1 Disabled All
！检查接口的完整信息
song# write
！保存
Building configuration...
[OK]
song#
配置VLAN Trunks
Trunk口基本配置
步骤如下：
song# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
song(config)# interface fastEthernet 0/4
！输入你所要设置成trunk的接口
2006-03-14 11:09:53 @5-CONFIG:Configured from outband
song(config-if)#switchport mode trunk
！定义该接口为二层trunk口
2006-03-14 11:10:22 @5-CONFIG:Configured from outband
song(config-if)#switchport trunk native vlan 3
！为这个接口指定一个vlan号
2006-03-14 11:10:38 @5-CONFIG:Configured from outband
song(config-if)#end
2006-03-14 11:10:40 @5-CONFIG:Configured from outband
song#show interfaces fastEthernet 0/4 switchport
Interface Switchport Mode Access Native Protected VLAN lists
---------- ---------- --------- ------- -------- --------- ---------------------
Fa0/4 Enabled Trunk 1 3 Disabled All
！检查接口完整信息
song#show interfaces fastEthernet 0/4 trunk
Interface Mode Native VLAN VLAN lists
-------------------- ------ ----------- --------------------
Fa0/4 On 3 All
！显示这个接口的trunk设置
song#wr
Building configuration...
[OK]
定义Trunk口的许可VLAN列表
注：一个trunk口缺省可以传输本交换机支持的所有vlan（1-4094）的流量。但是，您也可以通过设置Trunk口的许可VLAN列表来限制某些VLAN的流量不能通过这个Trunk口
如把vlan 3从端口0/15中移出的例子
步骤如下：
song# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
song(config)# interface fastEthernet 0/15
！输入想要修改许可VLAN列表的Trunk口的interface id
2006-03-14 11:24:15 @5-CONFIG:Configured from outband
!定义该接口的类型为二层Trunk口
song(config-if)# switchport trunk allowed vlan remove 2
！把vlan2从端口15中移出
2006-03-14 11:24:31 @5-CONFIG:Configured from outband
song(config-if)#end
2006-03-14 11:24:35 @5-CONFIG:Configured from outband
song# show interfaces fastEthernet 0/15 switchport
Interface Switchport Mode Access Native Protected VLAN lists
---------- ---------- --------- ------- -------- --------- ---------------------
Fa0/15 Enabled Access 1 1 Disabled 1,3-4094
配置Native VLAN
步骤如下：
song# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
song(config)# interface fastEthernet 0/6
！输入需要配置成native vlan的trunk口的interface id
2006-03-14 11:32:59 @5-CONFIG:Configured from outband
song(config-if)# switchport trunk native vlan 5
！配置native VLAN
2006-03-14 11:33:23 @5-CONFIG:Configured from outband
song(config-if)# end
2006-03-14 11:33:26 @5-CONFIG:Configured from outband
song# show interfaces fastEthernet 0/6 switchport
！验证配置
Interface Switchport Mode Access Native Protected VLAN lists
---------- ---------- --------- ------- -------- --------- ---------------------
Fa0/6 Enabled Access 1 5(NA) Disabled All
song# wr
Building configuration...
[OK]
显示VLAN
song# show vlan
！直接输入此命令即可查看到所有VLAN的信息
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