Re: What is at stake?
2002-01-24 09:50:06
At 08:38 AM 1/24/2002 -0500, vint cerf wrote:
actually DCA had only responsibility for the ARPANET
and MILNET, officially. The rest were the responsibility
of the network operators - usually schools and research labs.
In 1981 the CSNET project brought up non-DoD components
including PhoneNet and the X.25 extension of Internet
developed by Univ Wisconsin. This was an NSF-funded initiative.
The first NSFNET backbone came up in 1986 (Dave Mills' fuzzballs).
Folks,
1. The historical significance of NSFNet on Internet technology and
operations is often missed. As I recall, it broke the single-backbone
routing model that existed and required a fundamental change to the
exterior routing protocol, to support multiple backbones. This was a key
technical enhancement for permitting the current open, competitive
backbone. Steve Wolff, then at NSF and now at Cisco, deserves particular
credit for driving this basic improvement to Internet design and operation
choices.
2. Oddly enough, Steve characterizes CSNet as having turned out to be a
kind of market research effort for the later NSFnet project.
3. An oddity to Vint's wording might lead one to think that Univ. of Wisc.
did the Phonenet work. Harumph! Vint knows differently but others might
not. (Vint gave Univ. of Delaware an ARPA contract for doing an NCP/TCP
email gateway contract for the transition to TCP/IP in 1983.) Anyhow,
Phonenet was done entirely at Univ. of Delaware. Dave Farber was the
PI. I did the development and operations, except that another grad
student, Ed Szurkowski, did the telephone link-level protocol, which had
interesting flexibility compared with equivalent telephone data link
protocols of the day.
Phonenet was the link protocol. MMDF was the email relay software. The
project began with Army funding and later got CSNet funding. The service
was email relay between Arpanet (and later Internet) email hosts and host
accessible only over dialup. Hence this broadened the Internet email
community dramatically, since getting on the Arpanet/Internet was quite
constrained by policy and cost.
d/
d/
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Dave Crocker <mailto:dcrocker(_at_)brandenburg(_dot_)com>
Brandenburg InternetWorking <http://www.brandenburg.com>
tel +1.408.246.8253; fax +1.408.273.6464
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