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RE: Mtu ethernet posted 06/16/2004
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These don't explain the history of the 1518 bytes, but it's pretty good
along those lines - 

Chuck Church
Wam!Net Government Services
13665 Dulles Technology Dr. Ste 250
Herndon, VA 20171
Office: 703-480-2569
Cell: 703-819-3495
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-----Original Message-----
From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
Casey Paul (IE)
Sent: Wednesday, June 16, 2004 4:26 PM
To: 'ccielab@xxxxxxxxxxxxxx'
Subject: Mtu ethernet


Can someone tell me why the mtu is 1500 on ethernet. Where does this
number come from.. Or how is it worked out. 

I cant believe I still don't know this having reached CCIE and all. I
dread the day some grad asks me and I have to say I don't know

I have searched the web but can find the specific answer of why 1500.. 

Any help appreciated. 


/ Paul 

CCIE 13037 

Paul Casey
Core Networks department,
Products & Services,
O2 Ireland 

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