[54275] in North American Network Operators' Group
Re: Using link congestion to control routing updates
daemon@ATHENA.MIT.EDU (Alec H. Peterson)
Thu Dec 19 13:20:59 2002
Date: Thu, 19 Dec 2002 11:20:22 -0700
From: "Alec H. Peterson" <ahp@hilander.com>
To: David Scott Olverson <olverson@fas.harvard.edu>, nanog@merit.edu
In-Reply-To: <Pine.OSF.4.44.0212191203200.21830-100000@is02.fas.harvard.edu>
Errors-To: owner-nanog-outgoing@merit.edu
--On Thursday, December 19, 2002 12:10 -0500 David Scott Olverson
<olverson@fas.harvard.edu> wrote:
>
> Hello all,
>
> I was wondering if anyone was aware of a way to use the congestion
> of a network link to control the routing update. For example if I have a
> very small link that gets congested, I may want the router to withhold a
> routing update until link congestion falls below a certain threshold like
> 60% of bandwidth. Is anyone aware of anything like this available today
> or a technique that might accomplish something similar? You can contact
> me off list if this topic isn't germane.
Route flap is bad. Something like this would introduce a huge amount of
route flap, and would probably just end up causing congestion ossilation.
As far as I know there is nothing to do this in the 'common' routers
(cisco, Juniper).
Alec
--
Alec H. Peterson -- ahp@hilander.com
Chief Technology Officer
Catbird Networks, http://www.catbird.com
