Configuration Guide Configuring Interfaces
 Configuring a Tunnel Interface
No tunnel interface is created by default.
You can run the interface tunnel tunnel-number command in global configuration mode to create a tunnel interface. The
value of tunnel-number ranges from 1 to the maximum number of tunnel interfaces supported by a device. After a tunnel
interface is successfully created, enter the interface configuration mode of this tunnel interface. You can run the no interface
tunnel tunnel-number command to delete a specified tunnel interface.
1.3.2 Configuring the Interface Description and Status
You can name an interface for identification of the interface features.
You can enable or disable an interface in interface configuration mode.
Working Principle
 Interface Description
You can name an interface based on the purpose it is used for. For example, if you want to assign GigabitEthernet 0/1 to
user A, you can describe this interface as "Port for User A".
 Interface Status
An interface has two states: Up and Down. If an interface is disabled, it is in Down state; otherwise, it is in Up state. In certain
cases, you may need to disable an interface. You can directly disable an interface by setting the status of the interface. If an
interface is disabled, the interface will not receive or send any frames, indicating that all its features are lost. You can also
re-enable a disabled interface by setting the status of the interface.
Related Configuration
 Configuring the Interface Description
An interface is not described by default.
You can describe an interface based on its features. To describe an interface, run the description string command in
interface configuration mode.
 Configuring the Interface Status
An interface is in Up state by default.
You can set the status of an interface based on your needs. Run the shutdown command in interface configuration mode to
disable an interface, and the interface status changes to Down. You can run the no shutdown command to re-enable a
disabled interface.
1.3.3 Configuring the MTU
You can set the MTU for an interface to control the maximum size of the frames received or sent on this interface.
To Next Page
Loading...
Need help?
General
