Configuring a Primary IP Address for an Interface

Procedure

1. Run system-view

   The system view is displayed.

2. Run interface interface-type interface-number[.subinterface-number]

   The interface view or sub-interface view is displayed.

   

   • Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support Ethernet sub-interfaces.

   • Only hybrid and trunk interfaces on the preceding switches support Ethernet sub-interface configuration.

   • After you run the undo portswitch command to switch Layer 2 interfaces on the preceding series of switches into Layer 3 interfaces, you can configure Ethernet sub-interfaces on the interfaces.

   • After an interface is added to an Eth-Trunk, sub-interfaces cannot be configured on the interface.

   • VLAN termination sub-interfaces cannot be created on a VCMP client.

3. (Optional) On an Ethernet interface, run undo portswitch

   The interface is switched to Layer 3 mode.

   By default, an Ethernet interface works in Layer 2 mode.

   

   Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.

4. Run ip address ip-address { mask | mask-length }

   A primary IP address is configured for the interface.

   By default, no IP address is configured for an interface.

   Each interface has only one primary IP address. If you configure a new primary IP address for an interface, the original one is deleted and the new primary IP address takes effect.