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[ no ] bgp dampening [ halfLife [ reuse suppress maxSuppressTime
[ halfLifeUnreachable ] ] ] [ route-map mapTag ]
Command introduced before JUNOSe Release
Enables BGP route dampening. The router assesses
a penalty of 1000 each time a route flaps and adds this to any previously
accumulated penalty value. Penalties are cumulative. The no version disables route flap dampening.
in minutes in the range 1–45; default value is 15. When a BGP
route has been assigned a penalty, the penalty is decreased by half
after the half-life period.
reuse—Reuse limit in the range
1–20000; default value is 750. As the penalty for a flapping
route decreases and falls below this reuse limit, the route is unsuppressed.
That is, the route is added back to the BGP table and used for forwarding.
suppress—Suppress limit in
the range 1–20000; default value is 2000. A route is suppressed
when its penalty exceeds this limit.
time in minutes in the range 1–255. This value is the maximum
amount of time a route can be suppressed. The default value is four
times the half-life value.
half-life period in minutes for unreachable routes; a number in the
range 1–45. If this value is not specified, the same half-life
period is used for both reachable and unreachable routes.
- route-map—Specifies that dampening can be applied
to routes according to the route map behavior. If the route map permits a route, the route is subject to dampening. If
the route map denies a route, the route is not
subject to dampening. The route map can contain a no dampening clause that determines dampening characteristics.
mapTag—Name of the route map;
a string of up to 32 alphanumeric characters.
Address Family Configuration, Router Configuration
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