> From: <s...@swabhawat.com> > Date: Fri, 2 May 2014 20:02:12 +0200 .... > Tim Litt mentioned a while ago that Tops20 4.1 was rather more of a phase-II > then a III; I call it phase-II+ as it appears to have some routing > functionality.
I started at DEC around October of 1981, and at that time Phase II was the rule, and everything supported "poor man's routing"; You specified HOP1::HOP2::HOP3..... and the intermediate hops were made by connecting to a "pass thruough" listener on an adjacent node. TOPS-20 5.1 with Phase III made it onto the layered products machine (KL2137) not long after I arrived. My recall is that the KL was never a router until Phase IV. A DN20 was loaded with software ISTR everyone loved to hate (MCB?) that did Phase III routing, so the KL may have been just a Phase II-ish endnode that knew about Phase III addressing, and I wouldn't expect much more of the KS, so multiple DECnet circuits on a KS may just not make much sense. But I was just a lowly FORTRAN team member.... Phil _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh