Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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bgp dampening

Enable BGP route dampening and configure the dampening parameters.

Syntax
bgp dampening [half-life reuse suppress max-suppress-time] [route-map map-name]

To disable route dampening, use the no bgp dampening [half-life reuse suppress max-suppress-time] [route-map map-name] command.

Parameters
half-life
(OPTIONAL) Enter the number of minutes after which the Penalty is decreased. After the router assigns a Penalty of 1024 to a route, the Penalty is decreased by half after the half-life period expires. The range is from 1 to 45. The default is 15 minutes.
reuse
(OPTIONAL) Enter a number as the reuse value, which is compared to the flapping route’s Penalty value. If the Penalty value is less than the reuse value, the flapping route is once again advertised (or no longer suppressed). The range is from 1 to 20000. The default is 750.
suppress
(OPTIONAL) Enter a number as the suppress value, which is compared to the flapping route’s Penalty value. If the Penalty value is greater than the suppress value, the flapping route is no longer advertised (that is, it is suppressed). The range is from 1 to 20000. The default is 2000.
max-suppress-time
(OPTIONAL) Enter the maximum number of minutes a route can be suppressed. The default is four times the half-life value. The range is from 1 to 255. The default is 60 minutes.
route-map map-name

(OPTIONAL) Enter the keyword route-map then the name of a configured route map.

Only match commands in the configured route map are supported.

Defaults
Disabled.
Command Modes
  • ROUTER BGP
  • ROUTER BGP-address-family
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.8(2.0)
Introduced on the S3100 series.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000–ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
7.8.1.0
Introduced on the S-Series.
7.7.1.0
Introduced on the C-Series.
Usage Information

If you enter the bgp dampening command, the default values for half-life, reuse, suppress, and max-suppress-time are applied. The parameters are position-dependent; therefore, if you configure one parameter, configure the parameters in the order they appear in the CLI.

Route refresh is sent when you enable BGP dampening.

Related Commands

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