Table of Contents
Advertisement
JUNOSe 11.1.x Command Reference Guide A to M
bgp dampening
[ no ] bgp dampening [ halfLife [ reuse suppress maxSuppressTime
Syntax
[ halfLifeUnreachable ] ] ] [ route-map mapTag ]
Command introduced before JUNOSe Release 7.1.0.
Release Information
Enables BGP route dampening. The router assesses a penalty of 1000 each time a
Description
route flaps and adds this to any previously accumulated penalty value. Penalties are
cumulative. The no version disables route flap dampening.
Options
Address Family Configuration, Router Configuration
Mode
284
bgp dampening
halfLife—Half-life period 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.
maxSuppressTime—Maximum suppression 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.
halfLifeUnreachable Alternate 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.
Advertisement
Table of Contents
