[ih] SATNET (seismic data, Norway, UK)

[Vint Cerf]

bob's paper will help. Larry Roberts initiated the program, Bob  
insisted that the network be separable from ARPANET and that was part  
of his very significant effort to develop the concept of "open"  
networking. We needed packet satellite to serve ship-to-ship and ship- 
to-shore data communications (in our conceptual model of using packet  
networking to aid in computer-based command and control). Packet Radio  
was needed for ground and air mobile. ARPANET was the prototype for  
wireline, land-based command and control. These three networks, plus  
the ethernet invented at Xerox PARC formed the basis for much of the  
Internet's architecture.

vint


On Aug 14, 2009, at 9:42 PM, Johnny RYAN wrote:

> please ignore my last re Kahn's paper (found it here
> http://ia300230.us.archive.org/3/items/TheIntroductionOfPacketSatelliteCommunication/)
>
>
> --
> My Next Book... http://johnnyryan.wordpress.com/books/net- 
> history-2010/
>
>
>
>
> On Fri, Aug 14, 2009 at 10:51 PM, Johnny RYAN<johnnyryan1 at gmail.com>  
> wrote:
>> Dear Vint,
>> I had better examine this more to understand the reasoning behind  
>> SATNET
>> any pointers or source suggestions would be very welcome!
>> ( I cant find a text online for R.E. Kahn, "The Introduction of  
>> Packet
>> Satellite Communications," National Telecommunications Conference,
>> Nov. 1979, referenced in your RFC 829 )
>> Johnny
>>
>> --
>> My Next Book... http://johnnyryan.wordpress.com/books/net-history-2010/
>>
>>
>>
>>
>> On Fri, Aug 14, 2009 at 9:53 PM, Vint Cerf<vint at google.com> wrote:
>>> well not exactly. the seismic stuff had its own dedicated circuit.  
>>> Bob Kahn
>>> successfully argued that we could provide higher speed service by  
>>> sharing
>>> the satellite capacity between the seismic data and the internet  
>>> data and
>>> splitting the costs. But the seismic data itself was not  
>>> necessarily a
>>> driver of packet satellite as a technology.
>>>
>>> v
>>>
>>> On Aug 14, 2009, at 4:03 PM, Johnny RYAN wrote:
>>>
>>>> Dear All,
>>>>
>>>> Thanks you for your responses on Carterfone. But if I may be so  
>>>> bold,
>>>> one other...
>>>>
>>>>> From papers of Peter Kirsten and Robert Kahn, it looks like  
>>>>> seismic
>>>>
>>>> data transfer was an important reason to pursue SATNET, presumably
>>>> particularly so in the context of the Mansfield Amendment --- were
>>>> there other important reasons?
>>>>
>>>> The sequence for SATNET as I understand it is
>>>>
>>>> ------------------
>>>> Background events re seismic data....
>>>> 1957 - 'Rainier', US first underground nuclear test, detected by
>>>> seismic instruments across the globe
>>>> 1963, Limited Test Ban Treaty, 116 nations commit to underground  
>>>> testing
>>>> 1970, US starts recieving seismic data from NORSAR at Kjeller,  
>>>> Norway
>>>> (seismic data went by cable from Norway to UK and then by  
>>>> satellite to
>>>> US).
>>>> 1972, seismic data goes to US through Sweden by Satellite
>>>>
>>>> -------------------
>>>> 1973, ARPANET connects by satellite to UCL and University of Hawaii
>>>> 1975, SATNET initiated - US link to UK (British Post Office and  
>>>> UCL)
>>>> using Intelisat IV
>>>> 1977, Norweigan Defense Establishment link by satellite
>>>>
>>>> Does this sound right?
>>>>
>>>> Johnny
>>>>
>>>> --
>>>> My Next Book... http://johnnyryan.wordpress.com/books/net-history-2010/
>>>
>>>
>>