[145333] in North American Network Operators' Group
Re: passive bandwidth estimation
daemon@ATHENA.MIT.EDU (Leigh Porter)
Wed Oct 5 04:17:57 2011
From: Leigh Porter <leigh.porter@ukbroadband.com>
To: Murtaza <leothelion.murtaza@gmail.com>
Date: Wed, 5 Oct 2011 08:18:07 +0000
In-Reply-To: <CACq4OBvPCHu4Fr09H-=EHHOx+NzbrYAGJXNb47BNNGGh+keUBg@mail.gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I used a passive TCP RTT calculator and TCP re-trans monitor to guess the =
conditions to a host or group of hosts with some success. I the. Derived t=
he network "weather" from this and it worked pretty well to dynamically tu=
ne DPI box policing for wireless networks.
It also makes cool graphs. Especially if you add other parameters and do i=
t all in various colours.
--=20
Leigh
On 5 Oct 2011, at 07:41, "Murtaza" <leothelion.murtaza@gmail.com> wrote:
> Hi everyone,
> I want to do passive available bandwidth measurement. I was just wanderi=
ng
> what tools/techniques people are generally using these days. And is it a=
> good idea to use congestion window as parameter.
> Ghulam
>=20
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visit http://www.messagelabs.com/email=20
> ______________________________________________________________________
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email=20
______________________________________________________________________
