bgp dampening
This command enables route-flap dampening. Flapping routes trigger instability in the routing table. Routers running BGP have a mechanism designed to reduce the destabilizing effect of flapping routes.
Syntax
bgp dampening bgp dampening <half life time> bgp dampening [<half life time>] <re-use limit> [<start suppress> <suppress duration>
|
Command |
Description |
|---|---|
|
half life time |
Defines the amount of time that must pass to decrease the penalty by one half [1-45]. |
|
re-use limit |
Defines the value to start reusing a route [1 – 20000]. This value is compared to the penalty value to resolve route reusability. If the penalty is greater than the suppress limit, the route is suppressed. Otherwise, it is reused. |
|
start suppress |
Defines the value that specifies the penalty that will be used if a route is suppressed [1 – 20000]. |
|
suppress duration |
Defines the maximum duration in minutes that a route will be suppressed [1-255]. |
Default
NA
Command Mode
Privileged User
Example
The following is an example of how this command is used.
# configure data (config-data)# router bgp 2 (conf-router)# bgp dampening 1 1000 1000 100