Reed's views, was [e2e] Cannara's views
J. Noel Chiappa
jnc at ginger.lcs.mit.edu
Sun Apr 15 13:10:27 PDT 2001
<Some history corrections...>
> From: Cannara <cannara at attglobal.net>
> It's interesting that a networking system that, for instance,
> couldn't anticipate needing more than 32 bits for addressing all
> those machines the future held, when Xerox already had implemented
> 80 in XNS
Ah, this is not correct. The 32-bit IPv address was already fixed by
'77, and XNS was not done for several years after that.
(I don't know the exact date for XNS, but I was recently doing a search
for old networking stuff, and every early XNS spec I did find was marked
Demember 1981, including one on something like a character set that was
marked "Interim", suggesting it had to have been early on.)
> From: "David P. Reed" <dpreed at reed.com>
> You're right that we knew about Ethernet's 48-bit addressing.
Actually, no we didn't!
10M Ethernet came along somewhat later, and I distinctly recall trying to
figure out how on earth to fit 48 bits into a 24-bit (the "rest" field
back in the pre-A/B/C days) sack! The result was ARP, which Dave Plummer
and I put together in '82.
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