LoopBack

A loopback interface is a logical interface. It is always Up. The loopback interface is usually used in loopback test.

Context

Procedure

• Query loopback interface information.
  1. Choose Interface Management > LoopBack in the navigation tree to open the LoopBack page.
  2. Enter the number of the interface that you want to query, for example, 12.
  3. Click Query to display all matching records.
• Create a loopback interface.
  1. Choose Interface Management > LoopBack in the navigation tree to open the LoopBack page.
  2. Click New to open the Create LoopBack page.

     Table 1 describes the parameters on the Create LoopBack page.

     Table 1 Create LoopBack

     Parameter	Description
     LoopBack Name	Indicates the number of the loopback interface. This parameter is mandatory.
     IP Address	Indicates the IP address of the loopback interface, for example, 10.10.10.1.
     Mask	Indicates the mask of the IP address. Select a mask from the drop-down list box, for example, 24 (255.255.255.0).
     Description	Indicates the description of the loopback interface.

  3. Set parameters.
  4. Click OK.
• Modify the loopback interface configuration.
  1. Choose Interface Management > LoopBack in the navigation tree to open the LoopBack page.
  2. Select a record that you want to modify and click to open the Modify LoopBack page.
     NOTE:

     • Table 1 describes the parameters on the Modify LoopBack page.
     • The loopback interface name cannot be changed.

  3. Set parameters.
  4. Click OK.
• Delete a loopback interface.
  1. Choose Interface Management > LoopBack in the navigation tree to open the LoopBack page.
  2. Select a record that you want to delete and click Delete. The system asks you whether to delete the record.
     NOTE:

     • To select a record, click the check box of the record.
     • To delete VLANIF interfaces in batches, click the check boxes of the records.

  3. Click OK.