一、简单的概念解释

VLAN(Virtual Local Area Network ):通过在交换机上部署VLAN机制,可以将一个规模较大的广播域在逻辑上划分成若干个不同的、规模较小的广播域,由此便可以有效地提升网络的安全性,同时减少了垃圾流量,节约网络资源。

一个LVAN就是一个广播域,所以在同一个VLAN内部,计算机之间的通信就是二层通信。如果源计算机与目的计算机位于不同VLAN中,那么他们之间是无法进行二层通信的,只能进行三层通信来传递信息。

二、实验拓扑

三、实验配置

1.首先进行SW1的配置

<Huawei>sys 
Enter system view, return user view with Ctrl+Z.
[Huawei]sys SW1
[SW1]
May 14 2022 16:32:33-08:00 SW1 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 4, the c
hange loop count is 0, and the maximum number of records is 4095.
[SW1]VL	
[SW1]vlan 6
[SW1-vlan6]Q
[SW1]VLAN 8
[SW1-vlan8]
[SW1-vlan8]Q

 分别创建6和8的VLAN,创建了VLAN后,里面并没有任何端口,因此,我们需要将端口和对应的Vlan关联起来。

[SW1]int e 0/0/1
     #进入端口
[SW1-Ethernet0/0/1]port l	
[SW1-Ethernet0/0/1]port link-type acc	
[SW1-Ethernet0/0/1]port link-type access 
     #缺省端口类型为Hybrid,我们需要将端口类型改成 Access
[SW1-Ethernet0/0/1]port default v	
[SW1-Ethernet0/0/1]port default vlan 6
     #把接口划分到我们创建的 vlan 6中

接下来我们需要对Ethernet0/0/10的端口进行Trunk 配置

[SW1]int e	
[SW1]int Eth0/0/10
[SW1-Ethernet0/0/10]port link-t	
[SW1-Ethernet0/0/10]port link-type tr	
[SW1-Ethernet0/0/10]port link-type trunk 
     #这里的端类型就不是Access了,而是Trunk ,我们需要两台交换机进行Trunk
[SW1-Ethernet0/0/10]q

检查配置情况:

[SW1]dis port v
Port                    Link Type    PVID  Trunk VLAN List
-------------------------------------------------------------------------------
Ethernet0/0/1           access       6     -        # Vlan 6                              
Ethernet0/0/2           access       8     -        # Vlan 8                         
Ethernet0/0/3           hybrid       1     -                                   
Ethernet0/0/4           hybrid       1     -                                   
Ethernet0/0/5           hybrid       1     -                                   
Ethernet0/0/6           hybrid       1     -                                   
Ethernet0/0/7           hybrid       1     -                                   
Ethernet0/0/8           hybrid       1     -                                   
Ethernet0/0/9           hybrid       1     -                                   
Ethernet0/0/10          trunk        1     1         #Trunk 1  
Ethernet0/0/11          hybrid       1     -                                   
Ethernet0/0/12          hybrid       1     -                                   
Ethernet0/0/13          hybrid       1     -                                   
Ethernet0/0/14          hybrid       1     -                                   
Ethernet0/0/15          hybrid       1     -                                   
Ethernet0/0/16          hybrid       1     -                                   
Ethernet0/0/17          hybrid       1     -                                   
Ethernet0/0/18          hybrid       1     -                                   
Ethernet0/0/19          hybrid       1     -                                   
Ethernet0/0/20          hybrid       1     -                                   
Ethernet0/0/21          hybrid       1     -                                   
Ethernet0/0/22          hybrid       1     -                                   
GigabitEthernet0/0/1    hybrid       1     -                                   
GigabitEthernet0/0/2    hybrid       1     -                                   

注意,在Trunk 的Vlan列表中,缺省情况下,只允许Vlan 1,但我们是Vlan 6 和vlan 8,

所以需要把我们创建的两个Vlan 加进去。

[SW1]int e0/0/10
[SW1-Ethernet0/0/10]port tr	
[SW1-Ethernet0/0/10]port trunk allow-pass v	
[SW1-Ethernet0/0/10]port trunk allow-pass vlan 6 8
[SW1-Ethernet0/0/10]q  

到这里,SW1交换机就配置成功了。

2.对SW2进行配置

[Huawei]sys SW2
[SW2]vlan	
[SW2]vlan b	
[SW2]vlan batch 6 8
Info: This operation may take a few seconds. Please wait for a moment...done.
[SW2]
May 14 2022 16:37:43-08:00 SW2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 5, the c
hange loop count is 0, and the maximum number of records is 4095.
[SW2]
[SW2]
[SW2]
[SW2]int e 0/0/3
[SW2-Ethernet0/0/3]port link-type a	
[SW2-Ethernet0/0/3]port link-type access 
[SW2-Ethernet0/0/3]port default 
[SW2-Ethernet0/0/3]port default vlan 6
[SW2-Ethernet0/0/3]q
[SW2]
May 14 2022 16:39:03-08:00 SW2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 8, the c
hange loop count is 0, and the maximum number of records is 4095.int
         ^
Error:Incomplete command found at '^' position.
[SW2]int e0/0/4
[SW2-Ethernet0/0/4]port l	
[SW2-Ethernet0/0/4]port link-t	
[SW2-Ethernet0/0/4]port link-type as	
[SW2-Ethernet0/0/4]port link-type a	
[SW2-Ethernet0/0/4]port link-type access 
[SW2-Ethernet0/0/4]poet de	
[SW2-Ethernet0/0/4]port default vlan 8
[SW2-Ethernet0/0/4]q
[SW2]int e 0/0/5
[SW2-Ethernet0/0/5]port link-t	
[SW2-Ethernet0/0/5]port link-type access 
[SW2-Ethernet0/0/5]
May 14 2022 16:40:13-08:00 SW2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25
.191.3.1 configurations have been changed. The current change number is 11, the 
change loop count is 0, and the maximum number of records is 4095.
[SW2-Ethernet0/0/5]port de	
[SW2-Ethernet0/0/5]port default v	
[SW2-Ethernet0/0/5]port default vlan 8
[SW2-Ethernet0/0/5]q
[SW2]int e0/0/10
[SW2-Ethernet0/0/10]por	
[SW2-Ethernet0/0/10]port l	
[SW2-Ethernet0/0/10]port link-type trunk 
[SW2-Ethernet0/0/10]port 
[SW2-Ethernet0/0/10]port trunk allow-pass v	
[SW2-Ethernet0/0/10]port trunk allow-pass vlan all
[SW2-Ethernet0/0/10]q
[SW2]dis port vlan 
Port                    Link Type    PVID  Trunk VLAN List
-------------------------------------------------------------------------------
Ethernet0/0/1           hybrid       1     -                                   
Ethernet0/0/2           hybrid       1     -                                   
Ethernet0/0/3           access       6     -                                   
Ethernet0/0/4           access       8     -                                   
Ethernet0/0/5           access       8     -                                   
Ethernet0/0/6           hybrid       1     -                                   
Ethernet0/0/7           hybrid       1     -                                   
Ethernet0/0/8           hybrid       1     -                                   
Ethernet0/0/9           hybrid       1     -                                   
Ethernet0/0/10          trunk        1     1-4094
Ethernet0/0/11          hybrid       1     -                                   
Ethernet0/0/12          hybrid       1     -                                   
Ethernet0/0/13          hybrid       1     -                                   
Ethernet0/0/14          hybrid       1     -                                   
Ethernet0/0/15          hybrid       1     -                                   
Ethernet0/0/16          hybrid       1     -                                   
Ethernet0/0/17          hybrid       1     -                                   
Ethernet0/0/18          hybrid       1     -                                   
Ethernet0/0/19          hybrid       1     -                                   
Ethernet0/0/20          hybrid       1     -                                   
Ethernet0/0/21          hybrid       1     -                                   
Ethernet0/0/22          hybrid       1     -                                   
GigabitEthernet0/0/1    hybrid       1     -                                   
GigabitEthernet0/0/2    hybrid       1     -                                   
[SW2]

配置完成。

三、测试通信

PC1→PC3

PC2→PC4、server 

 没问题!

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