display damp-interface

Function

The display damp-interface command displays the current status and statistics about status flapping suppression on a physical interface.

Format

display damp-interface [ interface { interface-name | interface-type interface-number } ]

Parameters

Parameter	Description	Value
interface interface-type interface-number	Specifies the type and number of an interface. If no interface number is specified, the suppression status and statistics about all flapping interfaces of the same type are displayed.	-
interface-name	Specifies the name of an interface.	-

Parameter

Description

Value

interface interface-type interface-number

Specifies the type and number of an interface. If no interface number is specified, the suppression status and statistics about all flapping interfaces of the same type are displayed.

interface-name

Specifies the name of an interface.

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
interface-mgr	read

Usage Guidelines

Usage Scenario

To check the suppression status and statistics of a flapping interface, run the display damp-interface command. The command output facilitates status monitoring and fault diagnosis. The command output provides a basis for statistics collection and interface troubleshooting.

Compared with the display damp-interface brief command, the display damp-interface command displays more detailed information to facilitate problem location.

Precautions

If status flapping suppression is configured globally, the display damp-interface brief command output displays the suppression status and relevant statistics of all physical interfaces that do not have the damp-interface ignore-global command configuration.

If the damp-interface enable command is not run in the global view, the display damp-interface and display damp-interface brief command display the suppression status and statistics of a flapping interface that is suppressed.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display the status and relevant statistics about status flapping suppression on GE 0/1/0.

<HUAWEI> display damp-interface interface gigabitethernet 0/1/0
Interface GigabitEthernet0/1/0
Suppress status: unsuppressed
Damp level: light
TxOff flag: disable
Current penalty: 0.000
Damp reuse time: 0(s)
Damp parameter: suppress  reuse  halfLifeTime(s)  maxSuppressTime(s)  maxPenalty
                7.700     6.000  11               10                  11.267

**Table 1** Description of the **display damp-interface** command output
Item	Description
Suppress status	Suppression status of the interface. The value can be: suppressed. unsuppressed.
Damp level	Suppression level, which can be: Light. Middle. Heavy. Manual.
Damp reuse time	Date and time when the suppressed interface due to status flapping recovered.
Damp parameter	Suppression parameter configured on the interface.
TxOff flag	Flag indicating whether signal transmission is disabled after status flapping suppression is enabled on the interface: enable: Signal transmission is disabled. disable: The interface can still send signals.
Current penalty	Current penalty value for status flapping suppression on the interface.
reuse	Reuse threshold of the interface.
suppress	Suppression threshold of the interface.
halfLifeTime(s)	Half-life period.
maxSuppressTime(s)	Maximum suppression time.
maxPenalty	Maximum penalty value, which is the same as the ceiling value. ceiling = ReuseThreshold * 2^{-MaxSuppressTime/HalfLifeTime}.