[e2e] TCP Traffic Measurement Studies

[Marco Mellia]

We looked at that using tstat
http://tstat.tlc.polito.it

Part of the results are available in

M. Mellia, R. Lo Cigno, F. Neri
Measuring IP and TCP behavior on edge nodes with Tstat
Computer Networks, Vol. 47, No. 1, pp. 1-21, Jan 2005
http://www.tlc-networks.polito.it/mellia/papers/tstat_cn.ps

We esplicitely investigated the ratio bewteen forward and backward data carried
in TCP flows, both considering bytes and packets. The first are strongly
asymmetrical (due to client-server kind of applications), while considering
packet based figures, there is no bias toward any particular directions... due
to the ACK flow in the "backward" path...

Hope this helps.
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Scrive Vijay Erramilli <evijay at cs.bu.edu>:

>
>
> Hi,
>
> I'm looking for any characterization or measurement studies which deal
> with the amount of bytes sent in the "forward" direction by TCP
> connections compared to the amount sent in the "reverse" direction.   By
> "forward" direction I mean FROM the host that opened the connection, and
> by "reverse" I mean TO the host that opened the connection.
>
> I am trying to get a sense of what typical ratios of forward/reverse
> byte traffic is in TCP.  This will of course vary depending on the
> setting and application mix, but any pointers at all are welcome.
>
> Thanks,
> Vijay
>