[ih] Forwarded with permission: RE Telnet's NVT and DRS

[Chris Edmondson-Yurkanan]

--- Forwarded mail from "vinton g. cerf" <vinton.g.cerf at wcom.com>


I am not on that list (where is it?)

Mike Padlipsky is a good source of early info on a lot of this stuff.

I will try to find you a pointer to him if you don't have it.

DRS never made it off the page and into programming as far as I know.
John Heafner and Eric <something> were early participants at RAND.

I may have a copy of the DRS paper but sounds like it is already in hand.

DEL and NIL were paper only but Steve Crocker may be able to shed some light. Bob Braden should be consulted.

Steve, was Ray Tomlinson involved much in NVT? 

Bob K, NVT was a critical part of the 1972 demo but I think we must have made quite a bit of progress on it before that since remote, interactive access among the various ARPANET hosts was a very early target application.

Vint


At 08:06 PM 10/31/2002 -0600, Chris Edmondson-Yurkanan wrote:
>Hi Vint, don't think that you are subscribed to the internet history mailing
>list, so I thought that I'd forward this query to you.
>
>
>#Hello,
>#
>#My name is Adriana Arrington and I am working with Chris
>#Edmondson-Yurkanan in reseaching the technical history of Telnet for the
>#THINK Protocols project.  At this time, I am reading about the development
>#of the Network Virtual Terminal (NVT).
>#
>#The first mention of the NVT was in RFC 137, as far as I can tell.  How
>#and when did it actually first appear as a solution to the heterogeneous
>#terminal problem? How much of the NVT concept is based on the proposed but
>#never used Decode-Encode Language (DEL) and Network Interface Language
>#(NIL)?
>#
>#The Data Reconstruction Service (DRS) transforms data from one form to
>#another instead of causing data to conform to a known standard, as in the
>#case of the NVT. What happened to this manner of solving the incompatible
>#data problem? Did Telnet, and specifically the NVT, solve this problem better?
>#What ever happened to DRS?
>#
>#My main sources for NVT and these related topics have been the RFCs (of
>#course), 1970 and 1972 SJCC papers and "An Experimental Service for
>#Adaptable Data Reconfiguration" from the IEEE Transactions on
>#Communications (June 1972). Are there any other sources for these topics
>#(or any Telnet topic in genaral) that I should use?
>#
>#Thanks,
>#Adriana Arrington
>#
>#mailto:aca at cs.utexas.edu
>#mailto:a_arrington at mail.utexas.edu
>#http://www.cs.utexas.edu/~aca
>#
>#
>
>-- 
>The University of Texas at Austin  TAY 4.136; +1 512 471 9546    Fax: 471 8885  
>Chris Edmondson-Yurkanan           My email addresses are: chris at cs.utexas.edu
>Computer Sciences Department          or dragon at cs.utexas.edu
>1 University Station C0500         URL:  www.cs.utexas.edu/users/chris/
>Austin, TX   78712-1188            Fedex: please send to Taylor Hall 2.124 

Vint Cerf
SVP Architecture & Technology
WorldCom
22001 Loudoun County Parkway, F2-4115
Ashburn, VA 20147
703 886 1690 (v806 1690)
703 886 0047 fax



--- End of forwarded message from "vinton g. cerf" <vinton.g.cerf at wcom.com>


-- 
The University of Texas at Austin  TAY 4.136; +1 512 471 9546    Fax: 471 8885  
Chris Edmondson-Yurkanan           My email addresses are: chris at cs.utexas.edu
Computer Sciences Department          or dragon at cs.utexas.edu
1 University Station C0500         URL:  www.cs.utexas.edu/users/chris/
Austin, TX   78712-1188            Fedex: please send to Taylor Hall 2.124