Re: [Simh] VMS/VDE: Almost there
> On Oct 8, 2015, at 10:32 AM, Johnny Billquist wrote: > > On 2015-10-08 15:57, Paul Koning wrote: >> >>> On Oct 7, 2015, at 11:42 PM, John Forecast wrote: >>> >>> On Oct 7, 2015, at 7:17 PM, Johnny Billquist wrote: >>> ... >>> Phase II use NSP v3.1 so that’s probably another indication that it’s a >>> Phase I product. >> >> That would be an interesting surprise. The history I have seen says that >> Phase I was RSX only. >> >> It also appears that Phase I is undocumented, and that it isn't compatible >> (can't be made to interoperate) with Phase II. > > Well, I have some documentation about the DECNET/8 implementation, as well as > the sources. Want to implement it? :-) Maybe. At the very least it would be interesting to reverse-engineer a basic protocol spec. While the Phase III and IV specs are quite complete, and many Phase V specs can also be found (with effort), the Phase II specs omit some details, and Phase I specs have never been published as far as anyone can tell. (What's missing from the Phase II specs is clear documentation of how "intercept" mode works, which is the primitive routing machinery Phase II provides. I believe it's there for the benefit of PDP-10 systems with front-end processors, but I'm not sure about that. > It talks DDCMP, and don't seem to be very complex. I can also see some > similarities with never versions of DECnet, that I'm a bit more familiar > with. But I haven't taken any deeper dives into it. > > Attaching the documentation anyway... Thanks! paul ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] VMS/VDE: Almost there
On Oct 8, 2015, at 9:57 AM, Paul Koning wrote: > >> On Oct 7, 2015, at 11:42 PM, John Forecast wrote: >> >> On Oct 7, 2015, at 7:17 PM, Johnny Billquist wrote: >> >>> ... >>> >> Phase II use NSP v3.1 so that’s probably another indication that it’s a >> Phase I product. > > That would be an interesting surprise. The history I have seen says that > Phase I was RSX only. > > It also appears that Phase I is undocumented, and that it isn't compatible > (can't be made to interoperate) with Phase II. > Before coming to the US, I worked at a customer site in Sweden which had 2 11/40s running RSX-11D and DECnet Phase I ( I think hey had DU-11s interfaces). For a first version it was actually pretty stable.The intention was to run a master/warm standby system - I don’t know how well it worked since I left before the system went on-line. The only documentation I saw was the end-user docs; installation guide, programming guide etc. I suspect that there were only a small number of Phase I installations (I do know that Volvo in Gothenburg was one) - I submitted an SPR (Software Problem Report) while in Sweden and then proceeded to answer it once I got to the US! John. ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] VMS/VDE: Almost there
> On Oct 7, 2015, at 11:42 PM, John Forecast wrote: > > On Oct 7, 2015, at 7:17 PM, Johnny Billquist wrote: > >> ... >> > Phase II use NSP v3.1 so that’s probably another indication that it’s a > Phase I product. That would be an interesting surprise. The history I have seen says that Phase I was RSX only. It also appears that Phase I is undocumented, and that it isn't compatible (can't be made to interoperate) with Phase II. paul ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
