Tux and TCP

Hello...

This is my first post to this mailing list, so please excuse me
if the following questions seem OT or otherwise.

I am looking into the possibility of porting TUX to our hardware
platform.  I was wondering what issues (performance or otherwise),
lead TUX to have such a heavy entanglement with TCP?

A second (hopefully not a stupid) question:  Is there any 
high-level architecture document that explains how TUX functions?

Thanks for your time ....

Tom Collins



-------------------------------
This e-mail is for the sole use of the intended recipient and may
contain confidential and privileged information. Any unauthorized
review, use or disclosure is strictly prohibited. If you are not the 
intended recipient of this e-mail, please notify sender and delete 
all copies immediately.