DECnet,SNA vs TCP/IP / was Re: AS/400 a "VAX killer"?

9 Jan 2008

...
   (I proceeded
to use IP/DECnet dual-stack Ultrix machines to turn
 this DECnet-only infrastructure into an IP transport...I don't know
 how DEC felt about this nose-thumbing at their attempt to lock us
 into their proprietary way [...])  To which proprietary protocol do you refer?

The protocol part of the proprietary way I was talking about was
DECnet, yes.

To some extent I think you've got a point.  But to some extent I
disagree, too; given how close to single-sourced DECnet was, I think
it's fair to call it a "proprietary way" even if the underlying
protocol wasn't closed.  (Yes, there were other implementations, but
they were fringe - consider how often, or rather seldom, it happened
that anyone used DECnet without a DEC system being involved on at least
one end.  Even the dual-stack machines I used were MicroVAX-IIs running
Ultrix.)

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DECnet,SNA vs TCP/IP / was Re: AS/400 a "VAX killer"?