[e2e] Routers accessing TCP header

Arjuna Sathiaseelan arjuna.sathiaseelan at gmail.com
Wed Feb 23 00:53:53 PST 2005

Dear Craig,
  Thanks for your reply. 

> While the mechanism is slightly different, this sounds like Explicit
> Transport Error Notification (ETEN) done again.  See:
>     Rajesh Krishnan, James P.G. Sterbenz, Wesley M. Eddy, Craig Partridge
>     and Mark Allman, "Explicit transport error notification (ETEN) for
>     error-prone wireless and satellite networks," Computer Networks,
>     46(3), October 2004, pp. 343-362.

Incase you assume that EPDN was inspired from ETEN :),

This mechanism is a part of my four year PhD Thesis and has evolved
through these publications :

1) Robust TCP (TCP-R) with Explicit Packet Drop Notification (EPDN)
for Satellite Networks.
To appear in the proceedings of the 4th International Conference on
Networking (ICN '05), Reunion Island. Arjuna Sathiaseelan, Tomasz
                        2) Improving the Performance of TCP in the
Case of Packet Reordering,  7th IEEE International Conference on High
Speed Networks and Multimedia Communications HSNMC'04,Toulouse, France
July 2004 (LNCS 3079, pp. 63-75).

3)  RD-TCP: Reorder Detecting TCP. In proceedings of the 6th IEEE
International Conference on High Speed Networks and Multimedia
Communications HSNMC'03, Estoril, Portugal, July 2003 (LNCS 2720,

I use the EPDN mechanisms for detecting packet losses and thus
distinguish a packet reorder event from a packet drop event for all
these 3 papers. All these papers were products of a NOVICE
UNSUPERVISED PhD work and I am in the process of improving things.  I
would also like to tell you frankly that EPDN is just an amateur while
compared to your ETEN and no where near yours :).. I will be putting
my papers on the web as soon as I get them done properly. At present
they look quite amusing to me :)..

Pl do not mistake this email. Its just for your information. Thanks
for your reply once again.


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