tcptrace Query for Mobile IP analysis using Tcptrace

From: Rajat Malhotra (rajatmal@comp.nus.edu.sg)
Date: 02/09/03 

Date: Sun, 9 Feb 2003 20:40:36 +0800 (GMT-8)
From: Rajat Malhotra <rajatmal@comp.nus.edu.sg>
Subject: tcptrace Query for Mobile IP analysis using Tcptrace
Message-ID: <Pine.GSO.4.21.0302092027400.7141-100000@sf3.comp.nus.edu.sg>

Hi there,

I am trying to get the statistics for a Mobile IP scenario, where the
mobile node changes the point of attachments between various subnets. I am
running the TCPtrace in the Following scenario:

1. The Sender is a stationary machine on foreign subnet.
2. Receiver moves from the home subnet to the foreign (Sender's) subnet.
3. Receiver comes back to the Home Network.

I'm running tcpdump on both machines, and using IPerf to send TCP
packets. The analysis works FINE in the IPerf output and Ethereal
analysis. However, the problem is:

"When I run XPlot to view the Throughput graphs made by Tcptrace, it
shows only the graph for the period Mobile Node i.e., Receiver was in Home
Network (which is also the address I'm sending packets to using IPerf). It
does not plot graphs for the transit in the foreign netwok."

However, IPerf shows me what I want to see, but somehow Tcptrace is not
giving the graphs for the handoff region.

Am I missing some command in Tcptrace (or Tcpdump)? I'm new to Tcptrace
(and performance analysis) and would appericiate the kind advice of guru's
here.

Thanks and Best Regards,

Rajat Malhotra

----------------------------------------------------------------------------
To unsubscribe, send a message with body containing "unsubscribe tcptrace" to
majordomo@tcptrace.org.

This archive was generated by hypermail 2b30 : 02/09/03 EST