tcptrace-bugs Time offsets in TPUT & RTT graphs

From: Dennis Dungs (
Date: 02/17/04

From: "Dennis Dungs" <>
Subject: tcptrace-bugs Time offsets in TPUT & RTT graphs
Date: Tue, 17 Feb 2004 23:21:51 +0100
Message-ID: <000101c3f5a4$719a5fd0$>


i am currently investigating the TCP performance on Wireless links and i am
using this great tcptrace tool to make some nice basic graphs.
As now, I am measuring the TCP performance over WLAN in a handover scneario.
In order to measure the channel availability, I use a very low bandwith UDP
Connection, while running the TCP Connection and performing the handover. My
problem in the analyses now is, that the TCP connection (connection
establishment) starts in the ethereal trace after 1.1 sec, while the TCP
throughput graph starts instead at 0.0 sec. Is there any chance to let the
TCP graph start at the etheral dump time?


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