[ENet-discuss] Large data packets over ENet

[Jacco Bikker]

Well then that may have caused the problems I was having with WinSock
then. :) But when I send a larger packet using ENet, it is split
automatically, right? Or do I have to prepare small packets for ENet as
well?

>> I know what you mean, but I tried TCP, and it doesn't work for me. The
> problem is the latency: Ideally, I want to connect 16 or more computers.
> This would allow me to render 1024x768 @ 25fps or faster. The size of
> the transfer would indeed justify TCP, but the desired speed makes this
> a less optimal choice. I heard that there's a protocol for streaming
> video; that might be something to check out. In my case, it's not a big
> problem when I miss a packet; it would mean that some display lines
> don't get updated for one frame. But speed is essential.
>
> Forgive me if I'm misunderstanding the issue, but the problem seems to
> stem from your use of large packets.  The average MTU is under 1500
> bytes and around 576 for dialup, and anything over that is going to
> cause fragmentation of the packets which will kill you.  Remember that
> if a packet gets fragmented under UDP then the entire datagram will be
> tossed if even one of the fragments doesn't make it.  If you're trying
> to stream video than UDP should give you better overall performance than
> TCP, as you need speed and don't care about packet loss, but the size of
> the packets needs to fall below your MTU.
>
>
> Chris Dellario
> Lead Engineer
> Whatif Productions LLC
> http://www.whatif.info
> (617) 977-0115
>
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