The damp-interface enable command enables status flapping suppression on a physical interface.
The undo damp-interface enable command disables the suppression function.
By default, status flapping suppression on an interface is the same as the global configuration.
100GE-Trunk member Layer 2 interface view, 100GE-Trunk member interface view, Layer 2 100GE interface view, 100GE interface view, Layer 2 10GE interface view, 10GE interface view, 25GE-L2 view, 25GE interface view, 400GE-L2 view, 400GE interface view, 40GE-Trunk member Layer 2 interface view, 40GE-Trunk member interface view, Layer 2 40GE interface view, 40GE interface view, Layer 2 50GE interface view, 50GE interface view, Layer 2 GE interface view, GE optical interface view, GE interface view, GE electrical interface view
Usage Scenario
Intermittent disconnection of an optical fiber connected to a physical interface causes the interface status to alternate frequently between Up and Down. The damp-interface function suppresses a flapping interface at the physical layer, which ensures stability of the entire link layer and network layer. To enable status flapping suppression, run the damp-interface enable command in the user view.
Precautions
After the damp-interface enable command is run, configuration of the suppression parameters in the interface view preferentially takes effect over that in the system view.
The damp-interface enable command is mutually exclusive with the damp-interface ignore-global command. The actual status of an interface alternates between Up and Down, which is not reported to the upper-layers. Therefore, the upper-layers sense that the interface status is Down during flapping. You can query whether an interface enters or exits the suppression state through the hwIfDampSuppress and hwIfDampResume alarms, respectively.