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set dampening
Syntax
set dampening halfLife reuse suppress maxSuppressTime [ halfLifeUnreachable ]
no set dampening
Release Information
Command introduced before JUNOSe Release
7.1.0.
Description
Enables route flap dampening and optionally specifies
dampening parameters for routes passing through the route map. The no version removes the set clause from a route map.
Options
-
halfLife—Half-life period
in minutes, in the range 1–45; default value is 10. When a BGP
route has been assigned a penalty, the penalty is decreased by half
after each half-life period. Each time a route flaps, the router configured
for route flap dampening assigns the route a penalty. Penalties are
cumulative. BGP stores the penalty for all reachable and unreachable
routes that have experienced recent flaps.
-
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
-
maxSuppressTime—Maximum suppression
time in minutes, in the range 1–255; default value is 60; maximum
amount of time a route can be suppressed
-
halfLifeUnreachable—Alternate
half-life period in minutes for unreachable routes; a number in the
range 1–45; default value is 20. If you do not specify this
value, the router uses the same half-life period for both reachable
and unreachable routes.
Route Map Configuration
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