[ih] Peter Salus / Baran's work

[Vint Cerf]

John and Dave Crocker are correct - adaptive routing was one of the
important aspects of the ARPANET implementation.

The resilience theme in Baran's work and in the later Internet was born of
concern for post-nuclear command and control. ARPANET was motivated by
resource sharing as Larry Roberts and Barry Wessler clearly spelled out in
their 1970 paper. Some on this list may remember that we used Packet Radios
and Strategic Air Command aircraft to demonstrate around 1981-2 how a
fragmented ARPANET could be reconstituted using TCP/IP, terrestrial and
airborne packet radio and suitable routing mechanisms.

v


On Tue, Jan 13, 2015 at 1:34 PM, John Day <jeanjour at comcast.net> wrote:

> ARPANET had adaptive routing from the start.
>
> This question is more about what people were doing and thinking in the
> 1969-1971 time frame, not events almost 10 years or more later.
>
> John
>
> On Jan 13, 2015, at 13:21, Bill Ricker <bill.n1vux at gmail.com> wrote:
>
>
> On Tue, Jan 13, 2015 at 10:46 AM, John Day <jeanjour at comcast.net> wrote:
>
>> I think the nuclear war meme is really more tightly associated with the
>> Internet than the ARPANET.
>
>
> ​Hmm, that makes sense.
> (D)ARPAnet initially had fixed routing, not useful in damage-prone
> environment.
> It was ​TCP/IP that introduced adaptive routing around damage.
> (USEnet evolved adaptive routing, i don't recall how that was related .)
>
> Also note that the Military nearly adopted the ISO OSI protocol stack not
> the TCP/IP Internet stack, even though DARPA had subsidized the
> (pre-Web/NSF/NSCC) development !
>
> --
> Bill Ricker
> bill.n1vux at gmail.com
> https://www.linkedin.com/in/n1vux
>
>
>
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