[ih] Fwd: As Flag Day approaches at CMU

[Olivier MJ Crépin-Leblond]

After John Day told me he thinks Rutherford Appleton Labs was on the 
ARPANET, I did a bit of research and found some interesting papers that 
indeed confirm this.

UCL ARPANET Project Report for Year 1977. The London UCL node was set-up 
as a gateway from which access to EPSS was possible to the IBM at RL. 
The paper does not explain whether this was transparent to the user.
https://apps.dtic.mil/sti/tr/pdf/ADA135020.pdf

Monitoring and access control of the London node of ARPANET. provides 
more info on how the system is monitored;
https://dl.acm.org/doi/pdf/10.1145/1499799.1499882

And then a fuller report for 1976.
https://nsarchive.gwu.edu/sites/default/files/documents/5793285/National-Security-Archive-Peter-T-Kirstein.pdf

Later (late eighties), when TCP-IP was implemented, the links to 
Internet were the same, but the UCL-CS.ARPA turned to uk.ac.ucl.cs.nss 
as a gateway and as a user of that gateway from JANET, the access was 
not transparent to the user. You had to log into the machine (there was 
first a vax and then a sun) and from there, select where you wanted to 
go. Lots and lots of choices of gateways... but that's another story.

Happy reading!

Olivier

On 06/09/2025 12:04, Vint Cerf wrote:
> i agree with that conclusion, Olivier
> v
>
>
> On Sat, Sep 6, 2025 at 5:38 AM Olivier MJ Crépin-Leblond via 
> Internet-history <internet-history at elists.isoc.org> wrote:
>
>     That was the Rutherford Appleton Lab IBM-B, uk.ac.rl.ib aka
>     UKACRL.BITNET / EARN.UKACRL
>
>     But I do not think that this was ever connected to the Arpanet
>     using NCP.
>     Kindest regards,
>
>     Olivier
>
>
>     On 06/09/2025 11:12, vinton cerf via Internet-history wrote:
>     > I don't think so but weren't they connected to a major IBM
>     facility by way
>     > of JANET?
>     > v
>     >
>     >
>     > On Sat, Sep 6, 2025 at 3:48 AM Eberhard W Lisse via
>     Internet-history <
>     > internet-history at elists.isoc.org> wrote:
>     >
>     >> Didn't UCL use IBM in 73?
>     >>
>     >> el
>     >>
>     >> --
>     >> Sent from my iPhone
>     >> On Sep 6, 2025 at 10:34 +0200, Olivier MJ Crépin-Leblond via
>     >> Internet-history<internet-history at elists.isoc.org>, wrote:
>     >>> Fascinating.
>     >>> I notice there's not mention of IBM VM/CMS which was the
>     mainstay of
>     >>> EARN/BITNET.
>     >>>
>     >>> Is it because there were no such computers on the Arpanet?
>     >>> Kindest regards,
>     >>>
>     >>> Olivier
>     >>>
>     >>>
>     >>> On 06/09/2025 04:33, Barbara Denny via Internet-history wrote:
>     >>>> Oops.  Somehow a .  got inserted in the url.
>     >>>> This one should work.
>     >>>> https://self-issued.info/Smiley/Arpanet_Protocol_Thread.html
>     >>>> barbara
>     >>>> On Friday, September 5, 2025 at 08:10:41 PM PDT, Greg Skinner via
>     >> Internet-history<internet-history at elists.isoc.org> wrote:
>     >>>> forwarded for Barbara
>     >>>>
>     >>>>>> ----- Forwarded Message -----
>     >>>>>> From: Barbara Denny<b_a_denny at yahoo.com>
>     >>>>>> To: Internet-history<internet-history at elists.isoc.org>
>     >>>>>> Sent: Friday, September 5, 2025 at 07:49:12 PM PDT
>     >>>>>> Subject: As Flag Day approaches at CMU
>     >>>>>>
>     >>>>>> Some of you might be interested in this link.
>     >>>>>>
>     >>>>>> https://self-issued.info/S.miley/Arpanet_Protocol_Thread.html
>     >>>>>>
>     >>>>>> It covers cmu messages as flag day approaches.  They were
>     >> recovered when Jeff Baird was trying to find Scott Fahlman's
>     smiley :-)
>     >> bboard post.
>     >>>>>> The messages include when the ARPAnet  temporarily shut
>     off  NCP
>     >> twice before flag day.  Vint, was one of those times you ?????
>     I think I
>     >> remember you mentioned doing this but I wouldn't be surprised
>     if I am wrong.
>     >>>>>> barbara
>     >>> --
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