HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 145
dampening (BGP/BGP-VPN instance view
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dampening (BGP/BGP-VPN instance view) Syntax dampening [ half-life-reachable half-life-unreachable reuse suppress ceiling | route-policy route-policy-name ] * View undo dampening BGP view, BGP-VPN instance view Default level 2: System level Parameters half-life-reachable: Specifies a half-life for active routes from 1 to 45 minutes. By default, the value is 15 minutes. half-life-unreachable: Specifies a half-life for suppressed routes from 1 to 45 minutes. By default, the value is 15 minutes. reuse: Specifies a reuse threshold value for suppressed routes from 1 to 20000. A suppressed route whose penalty value decreases under the value is reused. By default, the reuse value is 750. suppress: Specifies a suppression threshold from 1 to 20000. The route with a penalty value higher than the threshold is suppressed. The default value is 2000. ceiling: Specifies a ceiling penalty value from 1001 to 20000. The value must be bigger than the suppress value. By default, the value is 16000. route-policy-name: Routing policy name, a case-sensitive string of 1 to 63 characters. half-life-reachable, half-life-unreachable, reuse, suppress and ceiling are mutually dependent. Once any one is configured, all the others should also be specified. Description Use dampening to enable BGP route dampening, configure dampening parameters, or both. Use undo dampening to disable route dampening. By default, no route dampening is configured. The command dampens only EBGP routes rather than IBGP routes. Related commands: reset bgp dampening, reset bgp flap-info, display bgp routing-table dampened, display bgp routing-table dampening parameter, and display bgp routing-table flap-info. Examples # In BGP view, configure BGP route dampening. system-view [Sysname] bgp 100 [Sysname-bgp] dampening 15 15 1000 2000 10000 # In BGP-VPN instance view, configure BGP route dampening. (The VPN has been created.) system-view [Sysname] bgp 100 [Sysname-bgp] ipv4-family vpn-instance vpn1 [Sysname-bgp-ipv4-vpn1] dampening 15 15 1000 2000 10000 134