nanog mailing list archives
Re: passive bandwidth estimation
From: Murtaza <leothelion.murtaza () gmail com>
Date: Thu, 6 Oct 2011 15:29:39 +1100
I am more interested in getting an "Available Bandwidth" estimator. Due to this available bandwidth, I am interested in congestion window. As whenever congestion window goes to half it means the data rate has gone to its upper limit. I want to use this particular property of congestion window to calculate bandwidth. Any idea how can one do bandwidth measurement based on this? Thanks a lot, Ghulam On Wed, Oct 5, 2011 at 7:18 PM, Leigh Porter <leigh.porter () ukbroadband com>wrote:
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 justwanderingwhat tools/techniques people are generally using these days. And is it a good idea to use congestion window as parameter. Ghulam ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ____________________________________________________________________________________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
Current thread:
- passive bandwidth estimation Murtaza (Oct 04)
- Re: passive bandwidth estimation Leigh Porter (Oct 05)
- Re: passive bandwidth estimation Murtaza (Oct 05)
- Re: passive bandwidth estimation Randy Bush (Oct 05)
- Re: passive bandwidth estimation vern (Oct 05)
- Re: passive bandwidth estimation Murtaza (Oct 05)
- Re: passive bandwidth estimation Leigh Porter (Oct 05)
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- Re: passive bandwidth estimation Murtaza (Oct 06)
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- Re: passive bandwidth estimation Scott Weeks (Oct 06)