华为三层、二层交换机实现不同vlan不同网段之间互通_三层交换机和二层交换机互通

作者：很楠不爱3 | 2024-02-09 12:45:55

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三层交换机和二层交换机互通

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本文链接：https://blog.csdn.net/weixin_39379203/article/details/90209153

一、试验拓扑

二、试验需求

PC1和PC3属于VLAN 10 ,PC2和PC四属于VLAN 20，实现不同VLAN之间的相互通讯

三、试验过程

配置三层交换机SW1


[Huawei]sysname S1
[S1]SYS S1
[S1]vlan b 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[S1]int vlan 10
[S1-Vlanif10]ip add 192.168.10.1 24
[S1-Vlanif10]int vlan 20
[S1-Vlanif20]ip add 192.168.20.1 24
[S1-Vlanif20]int g0/0/1
[S1-GigabitEthernet0/0/1]port link-type trunk
[S1-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20
[S1-GigabitEthernet0/0/1]quit
[S1]int g0/0/2
[S1-GigabitEthernet0/0/2]port link-type trunk
[S1-GigabitEthernet0/0/2]port trunk allow-pass vlan 10 20
[S1-GigabitEthernet0/0/2]quit

1、首先，在三层交换机上新建vlan10、vlan20，然后分别为vlan10和vlan20配置IP。

2、其次，设置g0/0/1、g0/0/2端口为trunk模式，这两trunk端口用于连接两个二层交换机，并且允许vlan10和vlan20通过。（g0/0/1为1000Mb/s告诉口，E0/0/1为10Mb/s低速口）。

配置二层交换机SW2


<Huawei>undo ter m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan b 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20 
[Huawei-GigabitEthernet0/0/1]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type access
[Huawei-Ethernet0/0/1]port default vlan 10
[Huawei-Ethernet0/0/1]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type access
[Huawei-Ethernet0/0/2]port default vlan 20
[Huawei-Ethernet0/0/2]qu

首先配置g0/0/1高速口为trunk模式，并且允许vlan10、vlan20的通过，该高速口用于连接三层交换机用。

其次在二层交换机上指定e0/0/1口为access模式，并将该口划归为vlan10,用于连接PC1（连接的电脑的地址须和vlan10的地址在一个网段内）；指定e0/0/2口为access模式，并将该口划归为vlan20,用于连接PC2。

配置二层交换机SW3


<Huawei>undo ter m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]vlan batch 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20
[Huawei-GigabitEthernet0/0/1]quit
[Huawei]int e0/0/3
[Huawei-Ethernet0/0/3]port link-type access
[Huawei-Ethernet0/0/3]port default vlan 10
[Huawei-Ethernet0/0/3]qu
[Huawei]int e0/0/4
[Huawei-Ethernet0/0/4]port link-type access
[Huawei-Ethernet0/0/4]port default vlan 20
[Huawei-Ethernet0/0/4]q