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Date: Mon, 21 Mar 2016 14:25:10 +0100
From: Andrew Lunn <andrew@lunn.ch>
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Subject: Re: [B.A.T.M.A.N.] [RFC] alfred: implement TCP support for
 server-to-server communication
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Cc: Hans-Werner Hilse <hwhilse@gmail.com>

> I was also thinking that we might want to use TCP in general when the packet 
> size reaches a certain threshold (e.g. >3kB), and always use UDP for small 
> packets. Then we would also not need the commandline option (unless you think 
> we should leave a way to force a mode). Any thoughts on that?

Hi Simon

Either/or behaviour like this can cause hard to understand
issues. e.g. i opened a hole in the firewall to let Alfred traffic
though, but it suddenly stops when the network gets big, because it
swapped to TCP, and i don't have a hole of that. Similar for QoS
filters, i prioritise UDP Alfred packets, but when it swaps to TCP
they are not prioritised and get discarded during congestion...

     Andrew