ospf suppress-flapping peer

Function

The ospf suppress-flapping peer command configures detection parameters for OSPF neighbor relationship flapping suppression.

The undo ospf suppress-flapping peer command restores the default detection parameters.

By default, the detection interval of OSPF neighbor relationship flapping suppression is 60s, the suppression threshold is 10, and the interval for exiting from suppression is 120s.

Format

ospf suppress-flapping peer { detecting-interval detecting-interval | threshold threshold | resume-interval resume-interval } ^*

undo ospf suppress-flapping peer { detecting-interval detecting-interval | threshold threshold | resume-interval resume-interval } ^*

Parameters

Parameter	Description	Value
detecting-interval detecting-interval	Specifies a detection interval for OSPF neighbor relationship flapping suppression. Each OSPF interface on which OSPF neighbor relationship flapping suppression is enabled starts a flapping counter. If the interval between two successive neighbor status changes from Full to a non-Full state is shorter than detecting-interval, a valid flapping_event is recorded, and the flapping_count is incremented by 1.	The value is an integer ranging from 1 to 300, in seconds. The default value is 60s.
threshold threshold	Specifies the threshold of OSPF neighbor relationship flapping suppression. When the flapping-count reaches or exceeds threshold, flapping suppression takes effect.	The value is an integer ranging from 1 to 1000. The default value is 10.
resume-interval resume-interval	Specifies an interval for exiting from OSPF neighbor relationship flapping suppression. If the interval between two successive neighbor status changes from Full to a non-Full state is longer than resume-interval, the flapping-count is reset. NOTE: The value of resume-interval must be greater than that of detecting-interval.	The value is an integer ranging from 2 to 1000, in seconds. The default value is 120s.

Parameter

Description

Value

detecting-interval detecting-interval

Specifies a detection interval for OSPF neighbor relationship flapping suppression.

Each OSPF interface on which OSPF neighbor relationship flapping suppression is enabled starts a flapping counter. If the interval between two successive neighbor status changes from Full to a non-Full state is shorter than detecting-interval, a valid flapping_event is recorded, and the flapping_count is incremented by 1.

The value is an integer ranging from 1 to 300, in seconds. The default value is 60s.

threshold threshold

Specifies the threshold of OSPF neighbor relationship flapping suppression.

When the flapping-count reaches or exceeds threshold, flapping suppression takes effect.

The value is an integer ranging from 1 to 1000. The default value is 10.

resume-interval resume-interval

Specifies an interval for exiting from OSPF neighbor relationship flapping suppression.

If the interval between two successive neighbor status changes from Full to a non-Full state is longer than resume-interval, the flapping-count is reset.

NOTE:

The value of resume-interval must be greater than that of detecting-interval.

The value is an integer ranging from 2 to 1000, in seconds. The default value is 120s.

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

To configure detection parameters for OSPF neighbor relationship flapping suppression on an interface, run the ospf suppress-flapping peer command. However, keeping the default configurations is recommended.

Prerequisites

OSPF neighbor relationship flapping suppression must have been enabled globally before you configure detection parameters for it. By default, the function is enabled. If it is disabled, run the undo suppress-flapping peer disable command to enable it before you configure the detection parameters.

Example

# Set the detection interval of OSPF neighbor relationship flapping suppression to 5s, the suppression threshold to 40, and the interval for exiting from suppression to 20s on VLANIF 100.

<HUAWEI> system-view
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] ospf suppress-flapping peer detecting-interval 5 threshold 40 resume-interval 20