From: Juan Francisco Torreblanca (juan.torreblanca@tartec.com)
Date: 10/24/03
Subject: tcptrace RTT time evolution Date: Fri, 24 Oct 2003 16:35:52 +0200 Message-ID: <CAC72BB3C3E1E245AB6084426EDCBCB819F2B9@tartessos.tartec.local> From: "Juan Francisco Torreblanca" <juan.torreblanca@tartec.com>
Hi all,
I'm researching RTT, RTO and retransmission timer over wireless, I would
like to plot RTO and retransmission timer evolution based on RTT
samples.
I'm capturing TCP data with Ethereal, and afterwards post processing
them with tcptrace. So far, I've found the tcptrace option -lrZ which
enable to have all raw RTT samples, but I would need to have a temporal
reference of every RTT sample in order to plot them along with its
relative time. Do you know if it is possible to do it with tcptrace?
(Somehow to have the mentioned raw RTT samples files with time reference
as well) Any other option in negative case?
I would also need to know if tcptrace shows the number of retransmission
timer expirations, I know it shows the number of retransmission packets
but I would need to distinguish the retransmission due to timer
expiration and packet loss detection (I mean retransmission trigger by
fast transmission algorithm).
Thanks in advance,
Juan Torreblanca.
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