[ih] Fw: TCP adoption in 1984

[Barbara Denny]

 Forgot to reply to the list.
   ----- Forwarded Message ----- From: Barbara Denny <b_a_denny at yahoo.com>To: Vint Cerf <vint at google.com>Sent: Sunday, May 3, 2026 at 09:45:36 AM PDTSubject: Re: [ih] TCP adoption in 1984
  I think for the 1976 demo the gateway was still  in the packet radio station and only supported ARPAnet and PRnet. I think PRUs (Packet Radio Units) originally had an 1822 interface. By the time of the LPR I think the interface was HDLC but that change might have happened earlier.
I think the 1977 demo used a separate box for the gateway and may have been ported to MOS by then. The packet radio station used ELF for the operating system.
I am waiting to hear if the MIT gateway had an ethernet interface.  Quite some time ago on this mailing list, Noel mentioned he found my request for a gateway. I am begining to wonder if that is why i asked for one.   I think i had to specify exactly what interfaces i wanted. 
barbara
    On Sunday, May 3, 2026 at 07:40:52 AM PDT, Vint Cerf via Internet-history <internet-history at elists.isoc.org> wrote:  
 
 I don't think it needed ethernet - it was connecting PRNET to Arpanet and
SATNET and likely used BBN 1822 interfaces on the IMP sides. Less clear to
me what the interface looked like on the packet radio side - maybe a bit
serial link?

v


On Sun, May 3, 2026 at 9:25 AM Carsten Bormann via Internet-history <
internet-history at elists.isoc.org> wrote:

> On 2026-05-03, at 14:35, Craig Partridge via Internet-history <
> internet-history at elists.isoc.org> wrote:
> >
> > I don't recall if it supported Ethernet or simply connected two 
> > ARPANET-technology networks (of which there were a few at the time).
>
> https://www.internethalloffame.org/inductee/virginia-travers/
>
> …talks about “radio and satellite”.
> 1976/1977!
>
> Grüße, Carsten
>
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