nanog mailing list archives

Re: passive bandwidth estimation


From: Leigh Porter <leigh.porter () ukbroadband com>
Date: Wed, 5 Oct 2011 08:18:07 +0000

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 the network "weather" from this and it worked pretty well to dynamically tune DPI box 
policing for wireless networks.

It also makes cool graphs. Especially if you add other parameters and do it all in various colours.

-- 
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 wandering
what tools/techniques people are generally using these days. And is it a
good idea to use congestion window as parameter.
Ghulam

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