I have a 11/23+ system with 2xRD32 disks and a DEQNA (as well as various peripherals RX50, RL02, RX02, Kennedy 9 track). RSX-11M+ needs I&D space so it can t run on a 11/23+, right? Does RSX-11M support DECnet and a DEQNA? FWIW, the system as 2048K of RAM quite a bit by 11/23 standards. I could look it up if I had the SPDs for DECnet-11, but I haven t seen those online and I figure there are lots of HECnet people who would know. Actually I have a KDJ11 (11/73) card and I could just swap the CPUs easily enough, but I kind of like the system the way it is. If it is possible to run DECnet on the 11/23+, my next trick will be to locate kits and figure out how to install it. Bob