[ee122] UDP breaking up our packets

vern at cs.berkeley.edu vern at cs.berkeley.edu
Thu Dec 6 18:59:27 PST 2007

> Do we have to worry UDP breaking up our packet into across many  
> different UDP packets, even if our protocol size limit doesn't exceed  
> the UDP size limit?

Along with Lisa's comments, another reason you don't have to worry about
this is that you are implementing your protocol at user level; so even if
you wind up sending very large UDP packets that get fragmented, they will
only be delivered at the other side if all the fragments arrive and the
kernel is able to reassemble thme.

However, per Lisa's note, keep the MTU small so that this isn't an issue
in any case.


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