Wlan Configuration

Hi，
Because the interface you configured is a layer 3 interface. you should configure the port link-type on the layer 2 interface.

On a real router, you can use the portswitch command to change interfaces from Layer 3 mode to Layer 2 mode or use the undo portswitch command to change the interfaces from Layer 2 mode to Layer 3 mode.

<Huawei> system-view

[Huawei] interface ethernet 0/0/0

[Huawei-Ethernet0/0/0]portswitch

In the eNSP, sometimes the command can't take effect. you can change another layer 2 interface.

Hello!
For detailed information you can check https://forum.huawei.com/enterprise/en/trunk-port-on-huawei-ar2220e/thread/434539-863

The reason is that this port is L3. Please check the devices that you use in the modeling.

Hi @user_3812816

The Gi 0/0/x interfaces works as L3 ports by default on the AR devices predefined by eNSP, it can't be switched to a L2 port. If you want to configure a trunk on an AR router use an Ethernet 0/0/x port instead or if you want to configure Inter-vlan routing you can use sub-interfaces of a L3 port with dot1q termination:

Also, you can use the generic router device that appears on eNSP, this device supports the port switch command to change a L3 port to a L2 port: