[ih] History of Network Virtual Terminal (NVT)

Vint Cerf vint at google.com
Fri Jan 22 09:47:27 PST 2010


interestingly this symmetry was deliberately baked into the TCP  
protocol so maybe this was contagious?

vint


On Jan 22, 2010, at 12:00 PM, John Day wrote:

> Actually, my question is who came up with making the protocol  
> symmetrical?
>
> That was the brilliant insight, even more so than the NVT.  Everyone  
> else saw this problem as an assymmetric terminal to host protocol.  
> What made Telnet unique and so useful was seeing it as symmetircal.
>
> I stell teach Telnet, not because everyone uses Telnet but as  
> examples of insightful design.  Also the go-ahead solution for the  
> same reason.
>
> Take care,
> John
>
> At 11:38 -0500 2010/01/22, Vint Cerf wrote:
>> Bernie,
>>
>> thanks so much for setting this straight - i had not remembered the  
>> strong extent of the BBN work here.
>>
>> vint
>>
>>
>> On Jan 22, 2010, at 11:13 AM, Bernie Cosell wrote:
>>
>>> On 22 Jan 2010 at 10:38, Vint Cerf wrote:
>>>
>>>> this was an idea that emerged from the network working group.
>>>
>>> Indeed, but a lot of the details ended up being done by me and bob
>>> Clements.  I was implementing the NVT stuff on the TIP [and trying  
>>> to get
>>> the @#$%@#$% IBM 2741 to play nice] and Bob was working with the
>>> corresponding code on TENEX, so since we were just a few offices  
>>> away we
>>> could easily try ideas and debug things.
>>>
>>>> ... As I recall, Dave
>>>> Walden was a strong proponent of the Do/Don't/Will/Won't idea.
>>>
>>> Actually, I did that.  We were playing with the problems of  
>>> asynchronous
>>> negotiation and I worked out the details of D/D/W/W on napkins on  
>>> the
>>> airplane as dave and I were flying to UCLA for a telnet meeting  
>>> [at which
>>> DDWW was presented].
>>>
>>> /Bernie\
>>>
>>> --
>>> Bernie Cosell                     Fantasy Farm Fibers
>>> mailto:bernie at fantasyfarm.com     Pearisburg, VA
>>>   -->  Too many people, too few sheep  <--
>




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