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echo: nthelp
to: Gregg N
from: Geo
date: 2005-05-21 08:51:34
subject: Re: Crappy Windows 2000/XP UDP performance

From: "Geo" 

"Gregg N"  wrote in message
news:428e11fe$1{at}w3.nls.net...

> Yes, because I don't care whether the receiver accepts my packets or not.
I
> am just measuring how fast I can send them. The sender isn't even aware of
> what happens to the packets once they leave the computer. UDP does not
have
> ACKs.

doesn't ethernet have acks when sending to a gateway?

> IP fragmentation does not require a response. The sender just splits the
> packet up into multiple ethernet frames with a fragmentation flag and
offset
> set in each fragment. The recipient reassembles the fragments. If a
fragment
> gets corrupted or lost in transit, the sender is none the wiser.

There is a do not fragment setting via that flag, who is that do not
fragment setting supposed to instruct if not the routers? Is it just for a
different network layer before the packet leaves the machine?

Geo.

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