F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

1070BConfiguration restrictions and guidelines

• On an interface that is physically down, you can only perform internal loopback testing. On an

interface administratively shut down, you cannot perform internal or external loopback testing.

• The speed, duplex, mdi, and shutdown commands are not available during loopback testing.

• During loopback testing, the Ethernet interface operates in full duplex mode. When you disable

loopback testing, the port returns to its duplex setting.

1071BConfiguration procedure

To enable loopback testing on an Ethernet interface:

Ste

Command

Remarks

20. Enter system view. system-view N/A

21. Enter Ethernet interface view.

interface interface-type

interface-number

N/A

22. Enable loopback testing.

loopback { external | internal }

By default, loopback testing is

disabled.

373BConfiguring the link mode of an Ethernet interface

Depending on the hardware structure of interface modules, for a device, some interfaces can operate

only as Layer 2 Ethernet interfaces (in bridge mode), some can operate only as Layer 3 Ethernet

interfaces (in route mode), but others can operate either as Layer 2 or Layer 3 Ethernet interfaces (you

can set the link mode to bridge or route).

You can configure the link mode in system view or in Ethernet interface view, which produces the same

result. The link mode configuration in system view applies to multiple interfaces, and the link mode

configuration in interface view applies only to the current interface.

1072BConfiguration restrictions and guidelines

• After you change the link mode of an Ethernet interface, all settings of the Ethernet interface are

restored to their defaults under the new link mode.

• The link mode configuration for an Ethernet interface in system view and in interface view

supersedes each other.

1073BConfiguration procedure

To change the link mode of the specified Ethernet interfaces in system view:

Ste

Command

23. Enter system view. system-view

24. Change the link mode of the specified Ethernet

interfaces.

port link-mode { bridge | route } interface-list

To change the link mode of an Ethernet interface:

Ste

Command

25. Enter system view.

system-view

26. Enter Ethernet interface view. interface interface-type interface-number