[erlang-questions] UDP questions

zxq9 <>
Thu Jan 28 07:49:56 CET 2016


On 2016年1月27日 水曜日 19:34:02 Artie Gold wrote:
> If, of course, it arrives at all. Larger messages, spanning several MTUs
> are more likely to be dropped.

Exactly.

That's why we tend to test for MTU and then stay below it, with the
generally safe (and blind) guideline being 512 bytes total. This is 
pretty small, but control and status update messages tend not to be
anywhere near this large in practice. Reliable transfer of data has
to happen on a separate TCP connection, perhaps created in response
to a UDP control message.

-Craig


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