Summary of Routing Policy Configuration Statements > damping

Syntax

damping name { 

    disable;

    half-life minutes;

    max-suppress minutes;

    reuse number;

    suppress number;

}

Hierarchy Level

[edit logical-routers logical-router-name policy-options],

[edit policy-options]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

Define route flap damping properties to set on BGP routes.

Options

disable—Disable damping on a per-prefix basis. Any damping state that is present in the routing table for a prefix is deleted if damping is disabled.

half-life minutes—Decay half-life. minutes is the interval after which the accumulated figure-of-merit value is reduced by half if the route remains stable.
Range: 1 through 45
Default: 15 minutes

max-suppress minutes—Maximum hold-down time. minutes is the maximum time that a route can be suppressed no matter how unstable it has been.
Range: 1 through 720
Default: 60 minutes

name—Name that identifies the set of damping parameters. The name can contain letters, numbers, and hyphens (-) and can be up to 255 characters long. To include spaces in the name, enclose it in quotation marks (double quotes).

reuse number—Reuse threshold. number is the figure-of-merit value below which a suppressed route can be used again.
Range: 1 through 20,000
Default: 750 (unitless)

suppress number—Cutoff (suppression) threshold. number is the figure-of-merit value above which a route is suppressed for use or inclusion in advertisements.
Range: 1 through 20,000
Default: 3000 (unitless)

Usage Guidelines

See Configuring Flap Damping Parameters.

Required Privilege Level

routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.