Ron Fitzherbert <ron@penguin.net> writes:

What I would like to know is: is there a MTU that is best to use IN GENERAL, or should we all just trust discovery and live with it?

MTUs should reflect the largest datagram size transport media can carry, period. Small MTUs, whether by design or configuration, limit the flexibility of end systems in choosing to send appropriately large datagrams without introducing IP fragmentation. Sean.