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Re: How long much advanced notice do ISPs need to deploy IPv6?
On Wed, 22 Oct 2003 00:16:26 -0400 William Allen Simpson <[email protected]> wrote: > Umm, hard to remember that long ago, and haven't looked at IENs in > ages, but should memory serve me correctly, the first TCP/IP documents > I read were circa 1978, and the cutover was circa 1983. I was a system/network admin at the University of Texas at Austin when the old ARPNET NCP was phased out in favor of IPV4. There was not a single cutover date, but rather both protocols were run side by side for a few years as I recall. This allowed plenty of time for testing, etc. Of course, the installed system base was much smaller in those days. UT had 3 machines directly connected to the local ARPANET IMP and no campus area network. In 1983 the 220.127.116.11/16 assigned to UT was just being deployed. So the cutover to IPV4 was relatively easy. A major change in the operational protocols today would have a much greater impact and require a much longer deployment and testing cycle. -- Smoot Carl-Mitchell Systems/Networking Consultant email: [email protected] cell: +1 602 421 9005 home: +1 480 922 7313