[dns-operations] PMTUD of .org servers

Michael Graff mgraff at isc.org
Sat Jun 20 14:03:30 UTC 2009

Florian Weimer wrote:

> With UDP, it can also be implemented in the kernel.  It fragments down
> to the path MTU when sending the packet.  This ensures that the number
> of packets is minimized, so it's not entirely pointless.

If the purpose here is to avoid generating fragments due to incorrectly
blocking them on the client's end (or something in the path) then what
does PMTU buy us for UDP, again?

I see minimal advantage here.


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