Configuring Layer 2/Layer 3 switchover on the firewall

Perform as follows to configure Layer 2/Layer 3 interface switching on the USG2000&5000&6000:
[USG] interface GigabitEthernet 1/0/1
[USG-GigabitEthernet1/0/1] undo portswitch //Switch the interface from Layer 2 mode to Layer 3 mode.
[USG-GigabitEthernet1/0/1] portswitch //Switch the interface from Layer 3 to Layer 2.

1. If the device interface attribute specifies that the interface is a Layer 2 interface, the interface cannot be switched to Layer 3 mode. This command applies only to interfaces that support Layer 2/Layer 3 switching.
2. When you use this command to perform Layer 2/Layer 3 mode switching, the interface can contain only the attribute information (such as shutdown and description configurations) so that the mode switching can take effect. If the interface already has service configurations (such as port link-type trunk), clear all these configurations of the interface and then run this command.

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