Re: Communication question

From: Cameron Skinner (cam@cs.auckland.ac.nz)
Date: Sun 25 Jul 2004 - 23:02:39 GMT


On Thu, 22 Jul 2004, Miguel Arroz wrote:

> I'm asking a question about the page 29 of the "manual-v0.r4.pdf",
> where the LongUDP is described. It says that yhe length of the body may
> be 0xFFFFFFFF, and that, in that case, the real body length is
> calculated from the remaining UDP packet's length.
>
> Shouldn't this be fixed on the protocol? I mean, there should be a
> terminator, or at least each UDP package should have info about its
> size. I also would like to know why UDP was prefered to TCP. The
> LongUDP protocol seems like a simple implementation of TCP over UDP, so
> why not using TCP in first place?

We intend to change the communication system for next year to use TCP
instead of UDP, so hopefully this will not be a problem for long.

Cameron Skinner
The Black Sheep
Department of Computer Science
The University of Auckland



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