Dell Force10 Z9000 FTOS Command Line Reference Guide for the Z9000 System FTOS - Page 339
bgp dampening
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bgp dampening Enable BGP route dampening and configure the dampening parameters. C-Series, E-Series, S-Series, Z-Series 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 reuse suppress max-suppresstime route-map mapname (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 1 to 45. The default is 15 minutes. (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 1 to 20000. The default is 750. (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 1 to 20000. The default is 2000. (OPTIONAL) Enter the maximum number of minutes a route can be suppressed. The default is four times the half-life value. The range is 1 to 255. The default is 60 minutes. (OPTIONAL) Enter the keyword route-map followed by the name of a configured route map. Only match commands in the configured route map are supported. Defaults Command Modes Command History Usage Information Disabled. • ROUTER BGP • ROUTER BGP-address-family Version 8.3.11.1 Version 7.8.1.0 Version 7.7.1.0 Introduced on the Z9000. Introduced on the S-Series. Introduced on the C-Series. If you enter the bgp dampening command, the default values for half-life, reuse, suppress, and max-suppress-time are applied. The parameters are positiondependent; therefore, if you configure one parameter, you must configure the parameters in the order they appear in the CLI. 339
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