Dell Force10 E600i FTOS Version 8.4.1.5 Configuration Guide for ExaScale - Page 244

www.dell.com | support.dell.com FTOS(conf-router_bgp)#bgp dampening 2 ? Value to start reusing a route (default = 750) FTOS(conf-router_bgp)#bgp dampening 2 2000 ? Value to start suppressing a route (default = 2000) FTOS(conf-router_bgp)#bgp dampening 2 2000 3000 ? Maximum duration to suppress a stable route (default = 60) FTOS(conf-router_bgp)#bgp dampening 2 2000 3000 10 ? route-map Route-map to specify criteria for dampening Use the following command in the CONFIGURATION ROUTER BGP mode to configure route flap dampening parameters. Command Syntax Command Mode Purpose bgp dampening [half-life | reuse | suppress max-suppress-time] [route-map map-name] CONFIG-ROUTER-BGP Enable route dampening. Enter the following optional parameters to configure route dampening parameters: • half-life range: 1 to 45. 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. (Default: 15 minutes) • reuse range: 1 to 20000. This number 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). Withdrawn routes are removed from history state. (Default: 750) • suppress range: 1 to 20000. This number 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). (Default: 2000.) • max-suppress-time range: 1 to 255. The maximum number of minutes a route can be suppressed. The default is four times the half-life value. (Default: 60 minutes.) • route-map map-name: name of a configured route map. Only match commands in the configured route map are supported. Use this parameter to apply route dampening to selective routes. To view the BGP configuration, use show config in the CONFIGURATION ROUTER BGP mode or show running-config bgp in EXEC Privilege mode. 244 | Border Gateway Protocol IPv4 (BGPv4)