From: John Matijevic (matijevi@bellsouth.net)
Date: Fri Jun 20 2003 - 14:18:43 GMT-3
half-life
(Optional) Time (in minutes) after which a penalty is decreased. Once
the route has been assigned a penalty, the penalty is decreased by half
after the half-life period (which is 15 minutes by default). The process of
reducing the penalty happens every 5 seconds. The range of the half-life
period is 1 to 45 minutes. The default is 15 minutes.
Hello I tried the suggestion Todd made, yes I saw dampening in action
because the route in the bgp table was now marked with an h. And if I look
at the sh ip bgp flap-statistics, I see that the history route is now listed
here.
Also you have to enable route dampening under the bgp process to see this.
However, when I do a show ip bgp route-dampened I do not see the route in
here, how do I get the route there?
Finally what is the penalty the route is assigned to what is the numerical
value for this?
Sincerely,
Matijevic
----- Original Message -----
From: "Todd Carswell" <acarswell@nc.rr.com>
To: "John Matijevic" <matijevi@bellsouth.net>
Cc: <ccielab@groupstudy.com>
Sent: Friday, June 20, 2003 12:40 PM
Subject: Re: route dampening with bgp
> John,
>
> Using a bgp network statement, advertise one of your interfaces into
> BGP. Next, shut down the interface and bring it back up. Go to a bgp
> neighbor and use show commands to view the dampening in action.
>
> If you go through a few iterations of this, the bgp neighbor will
> eventually suppress the flapping route.
>
> Todd
>
>
>
> John Matijevic wrote:
>
> >Hello Team,
> >I am looking for a way to simulate a flapping route on my BGP network so
I can
> >test the route dampening feature. Does anybody know of a way I can
simulate or
> >make on of my networks flapping.
> >Sincerely,
> >Matijevic
> >
> >
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