Eric Osborne <osborne@notcom.com> writes:

We all know that there's good reasons for all sorts of different MTUs, mainly because of the different types of traffic you could have - there's always going to be a tradeoff between efficient transfer of large blocks of data and immediaecy (sp?) of response time.

I know no such thing. My understanding of MTU is that the Maximum Transmission Unit indicates the largest IP datagram a logical transport medium is able to carry without fragmentation. There are, however, reasons why one might choose to send a datagram (which may contain a TCP segment or some other traffic) at smaller sizes than the transport medium or media may support. Sean.