> On Jul 16, 2016, at 6:56 PM, Antonio Carlini <a.carl...@ntlworld.com> wrote: > > ... > The specs were (and are) freely available. (I'm not 100% sure that they were > free-as-in-beer back then, but they are now).
I assume you had to pay for the cost of printing. They could be freely reproduced, though, it says so explicitly. > There was at least one implementation for Linux and (I think ...) another for > Solaris. cisco also supported DECnet in some of > their switches. Yes, and for that matter, there was a commercial non-DEC DECnet, by Stuart Wecker I think -- he was involved with DDCMP way back when. > ... > (I'm assuming that Phase II existed at some point before Phase III, which > definitely did exist. I also > assume that Phase I only acquired that designation once Phase II appeared!) I suppose so. Rumor had it that Phase I only existed on RSX, but it appears that there was a PDP-8 implementation as well. Phase II was implemented on lots of DEC systems, from TOPS-10 to RT-11 to RSTS/E. My initial involvement with DECnet was as the DECnet/E kernel guy, upgrading DECnet/E from Phase II to Phase III. paul