[e2e] Inferring loss at Client-side on TCP

[Peter Benko (ETH)]

Hi,

take a look at our paper:

P. Benko, A. Veres, "A Passive Method for Estimating End-to-End TCP Packet
Loss", Proc. IEEE Globecom 2002, Taipei, Taiwan

Abstract:
This paper presents a passive end-to-end loss
monitoring method, which relies on traffic monitoring at a core
or ingress router interface. The monitoring node captures the
packets of TCP connections generated by end-hosts. Based on
the seen sequence number pattern the loss ratios are estimated
for the two segments of end-to-end path divided by the monitor.
This feature is especially useful if the monitoring node is placed
at the border of an autonomous system, e.g., at the egress point
of an ISP. When applied to mobile Internet access, packet losses
on the radio interface can be distinguished from losses in the
core network or in the public Internet. The packet loss
estimation algorithm is rigorously validated using simulations
and testbed measurements. Additionally, measurement results
and an application example in a dial-up ISP are presented.

Best regards,

Peter

----- Original Message -----
From: Kalyan <kalyanramcvs at rediffmail.com>
To: <end2end-interest at postel.org>
Sent: Tuesday, March 04, 2003 3:56 AM
Subject: [e2e] Inferring loss at Client-side on TCP


Hello,

I am a grad student working on developing a tool which should
capture the loss based statistics at the client-side. The possible
inputs to my tool are tcpdump traces.

Can anyone suggest some heuristics of identifying loss based on
client-side tcpdump traces.

Thanks,
¬Kalyan C

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