Table of Contents
Advertisement
set dampening
Syntax
Release Information
Description
Options
Mode
Copyright © 2010, Juniper Networks, Inc.
set dampening halfLife reuse suppress maxSuppressTime [ halfLifeUnreachable ]
no set dampening
Command introduced before JunosE Release 7.1.0.
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.
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
Chapter 7: S Commands
477
Advertisement
Table of Contents
