From: Casey, Paul (6822) (Paul.Casey@o2.com)
Date: Tue Oct 21 2003 - 07:03:56 GMT-3
Hello,
Can someone tell me why the MTU for IP networks is 1500 bytes.
I konw that the standard for ethernet 1500, but I am wondering why this was
picked..
Why was an MTU of a1000 picked or what not an MTU of 5000.
Also apart from ethernet why does the MTU of serial interfaces default of
1500 Bytes.
Was this an optimal value for something..?? maybe a trade off between packet
header overhead with small MTU and increasing number of errors with larger
packets...??
I have a problem getting a good answer for this, I asked one on the experts
at work, but he said just thats the way it always was...???
Any help appreicated.
Kind regards.
Paul.
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