A LoopBack interface is a logical interface. It is always
Up. The LoopBack interface is usually used in LoopBack test.
Context
According to the TCP/IP protocol suite, the IP addresses
in the network segment 127.0.0.0 are LoopBack addresses. The system
automatically creates an interface using loopback address 127.0.0.1.
This interface is used to receive datagrams sent to the local device.
Procedure
- Query LoopBack interface information.
- Choose in the navigation tree
to open the LoopBackport page.
- Enter the number of the interface that you want to query,
for example, 12.
- Click Query to display all matching
records.
NOTE: If you do not enter any interface number, the system displays
all loopback interfaces.
- Create a LoopBack interface.
- Choose in the navigation tree
to open the LoopBackport page.
- 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. On the S5700-LI series switches, the value ranges
from 0 to 15.
|
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.
|
- Set parameters.
- Click OK.
- Modify the LoopBack interface configuration.
- Choose in the navigation tree
to open the LoopBackport page.
- 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.
- Set parameters.
- Click OK.
- Delete a LoopBack interface.
- Choose in the navigation tree
to open the LoopBackport page.
- Select a record that you want to delete and click Delete. The system asks you whether to delete the record.
- Click OK.
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