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Date: Thu, 30 Apr 2015 16:48:39 +0300
Message-ID: <CAF4H_7=uV8ng-+Y93wR88-aeW19HabaqR0iVkDXf6yujE4Wbpw@mail.gmail.com>
Subject: Re: Congestion Control Modification
From: Karlis Laivins <karlis.laivins@gmail.com>
To: "Eggert, Lars" <lars@netapp.com>
Cc: George Neville-Neil <gnn@neville-neil.com>, 
 "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>,
 grenville armitage <garmitage@swin.edu.au>
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Yes, you are correct, I meant to write "relative OWD". As David Hayes put
it - "Relative OWD measurements are easier, and clock drift is not usually
a problem over the time it takes to send and receive an ACK".

Thank you for the correction!

On Thu, Apr 30, 2015 at 4:19 PM, Eggert, Lars <lars@netapp.com> wrote:

> On 2015-4-30, at 15:04, Karlis Laivins <karlis.laivins@gmail.com> wrote:
> > I have yet to solve the issue of
> > how to get the One Way Delay for the ACK message (the time it takes ACK
> to
> > arrive from receiver of the ACK'ed data sender) correctly.
>
> That won't work without synchronized clocks, which you can't really assume
> to be present.
>
> Lars