[ih] the Jan 1 1983 cutover to TCP/IP on the ARPAnet

[Vint Cerf]

Miles, that's a nice bit of history - thanks!

vint



On Wed, Jan 2, 2013 at 12:56 PM, Miles Fidelman
<mfidelman at meetinghouse.net>wrote:

> Bob Braden wrote:
>
>> Recollections from the mists of time... January 1, 1983
>>
>> It was actually quite exciting for those of us who had been defining the
>> protocols and building
>> prototype implementations for roughly 5 years, to see TCP/IP really
>> function in production.
>> At the time, we of course had no idea of its ultimate impact on the world.
>>
>> I believe that the switchover was enforced by the ARPAnet operational
>> organization, DCA,
>> disabling the primary link used by the ARPAnet host-host protocol NCP.
>> Link 1? I guess
>> I could look it up.
>>
>>  On another list, Andy Malis wrote;
>
> "I guess I count as the expert in this case, because I wrote the IMP
> code that enforced the transition. It was a simple packet filter based
> on packet type (NCP vs. IP), NCP packets were dropped. I also
> administered a host-by-host list of hosts that had received extensions
> for various reasons - the code allowed exemptions on a per-host basis."
>
>
>
> --
> In theory, there is no difference between theory and practice.
> In practice, there is.   .... Yogi Berra
>
>
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