nanog mailing list archives
Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses
From: "Laurence F. Sheldon, Jr." <larrysheldon () cox net>
Date: Thu, 05 Feb 2004 14:43:39 -0600
Warren Kumari wrote:
Ok, I know that this is getting away from the original thread, but I've always wondered this... Why is the MTU on Ethernet 1500 bytes? I have looked through various docs (eg IEEE Std 802.x) and can find where maxUntaggedFrameSize is listed as 1518 octets, but there is no mention of why this was chosen. I know where the minimum frame size comes from (CSMA/CD and propagation times, etc), but the maximum frame size number sounds fairly arbitrary.
Because that was a conveniently large amount of very pricey memory availble at the time? Because that was the amount that could be blatted down a 500 meter hose and get the "CD" part to work at some common clock rate?
Current thread:
- RE: Strange public traceroutes return private RFC1918 addresses, (continued)
- RE: Strange public traceroutes return private RFC1918 addresses Michael . Dillon (Feb 04)
- Re: Strange public traceroutes return private RFC1918 addresses Hani Mustafa (Feb 04)
- Re: Strange public traceroutes return private RFC1918 addresses Robert E. Seastrom (Feb 04)
- Re: Strange public traceroutes return private RFC1918 addresses Iljitsch van Beijnum (Feb 04)
- MTUs - Was: Strange public traceroutes return private RFC1918 addresses Warren Kumari (Feb 05)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918addresses sthaug (Feb 05)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses Kevin Oberman (Feb 05)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses Laurence F. Sheldon, Jr. (Feb 05)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses M. David Leonard (Feb 05)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses Laurence F. Sheldon, Jr. (Feb 05)
- Re: Strange public traceroutes return private RFC1918 addresses Hani Mustafa (Feb 04)
- RE: Strange public traceroutes return private RFC1918 addresses Michael . Dillon (Feb 04)
- Re: MTUs - Was: Strange public traceroutes return private RFC1918 addresses Laurence F. Sheldon, Jr. (Feb 05)