[ih] pretty good video on internet history

[Andrew G. Malis]

Geoff,

I ran the "flag day" transition on Jan. 1 in the BBN NOC. From a
layperson's perspective, the phrase you quoted is just fine. It would have
been a bit more accurate if they said "the old ARPANET host-host protocol"
rather than "the old 1822 protocol".

What actually happened was to prepare for the flag day, we added a new bit
to each host's configuration in the IMPs. The bit said whether or not a
host was allowed to use the host-host protocol. If the bit was off, then
host-host packets were discarded by the IMPs. Most of those bits got
flipped from "on" to "off" on January 1, but we did start the year with a
list of exceptions that had been previously approved by the ARPANET
management, and more exceptions were approved as the phone calls started
coming in. As hosts got their TCP/IP stacks working, their host-host
protocol permission was turned off.

Cheers,
Andy


On Wed, Nov 2, 2022 at 12:46 PM the keyboard of geoff goodfellow via
Internet-history <internet-history at elists.isoc.org> wrote:

> uhm/er...@~14:52
>
> "...…so they established what became known as Flag Day on the 1st of
> January 1983 where the entire of ARPANET would have to switch from using
> the old 1822 protocol to TCP/IP…" ¿¿¿
>
>
>
>
> On Wed, Nov 2, 2022 at 5:18 AM vinton cerf via Internet-history <
> internet-history at elists.isoc.org> wrote:
>
> > https://www.youtube.com/watch?v=r03AIGRmRAM&t=784s
> >
> > v
> > --
> > Internet-history mailing list
> > Internet-history at elists.isoc.org
> > https://elists.isoc.org/mailman/listinfo/internet-history
> >
> >
>
> --
> Geoff.Goodfellow at iconia.com
> living as The Truth is True
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