Date: Wed, 13 Nov 2002 21:36:41 +0100 Subject: Re: tcptrace RTT caltulation Message-ID: <20021113203641.GA19201@pusa.informat.uv.es> From: uaca@alumni.uv.es
Sorry
the first scenario has an errata
On Wed, Nov 13, 2002 at 09:22:25PM +0100, ulisses wrote:
> On Wed, Nov 13, 2002 at 12:39:57PM -0500, Liangping Ma wrote:
> > Hi, Ulisses,
> >
> > I did TCP RTT measurement before. Based on my memory, the tcptrace
> > processes tcpdump raw data, which can be collected in a local ethernet.
> > You are right, that the measurement may not be on one of the end points
> > of a TCP conneciton. But the delay within a LAN is trivial in the case of
> > a long-haul TCP connection. Thus the measurement can be reasonably
> > accurate.
>
>
> Ok, imagine the following two scenarios
>
>
> <Monitorization Host>
> |
> |
> [Host A] >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [Host B]
> ((((((((((((((((((((((((((<<<<<<<<<<<<<<<<<<<<<<<<<<<
>
^^^^^^^^^^^^^^^^^^^^^^^^^^
This time is also accounted
regards
Ulisses
Debian GNU/Linux: a dream come true
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