[ih] Fwd: Question - reference source for formal decommissioning of ARPANET in 1990?

[Alex McKenzie]

 In an article titled "Internet" in "Discoveries in Modern Science" (for which I gave the full reference in an earlier email) I wrote (pg 569) "DCA declared that all ARPANET Hosts must convert to TCP no later than January 1, 1983.  There were some problems, but by June 1983 the conversion was complete."
Cheers,Alex

    On Saturday, December 5, 2020, 11:50:42 AM EST, Andrew G. Malis via Internet-history <internet-history at elists.isoc.org> wrote:  
 
 Dan,

I managed the NCP->TCP transition on the ARPANET that started on 1/1/83. I
wrote the IMP code that enforced the transition by adding a filter to drop
NCP packets, which was managed on a host-by-host basis. We had an official
list from DARPA of hosts that were approved to continue using NCP. I spent
New Year's Day in the NOC, turning off NCP for unapproved hosts, and I
fielded calls from unhappy site managers as their NCP traffic stopped
flowing (as they had been warned many times). I told them the process of
how to contact DARPA to at least temporarily get on the approved list, and
I turned the filters off and back on as directed by DARPA. Sadly, I don't
recall when we finished the process of turning on the NCP filter for all
hosts.

Cheers,
Andy


On Fri, Dec 4, 2020 at 7:31 PM Dan Lynch via Internet-history <
internet-history at elists.isoc.org> wrote:

> I only use real data😂🙀
>
> Dan
>
> Cell 650-776-7313
>
> > On Dec 4, 2020, at 4:26 PM, Dave Crocker <dhc at dcrocker.net> wrote:
> >
> > On 12/4/2020 4:22 PM, Dan Lynch via Internet-history wrote:
> >> It amazes me to hear there were sites still running NCP in the late 80s
> in Texas.
> >
> > A reference like that, about Texas, affords such a target-rich
> opportunity, I'm overwhelmed.
> >
> > d/
> >
> > --
> > Dave Crocker
> > Brandenburg InternetWorking
> > bbiw.net
>
> --
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> Internet-history at elists.isoc.org
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>
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