North American Network Operators Group

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Re: MTU of the Internet?

  • From: Sean M. Doran
  • Date: Sat Feb 07 23:39:58 1998

Ron Fitzherbert <[email protected]> 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.