I have 4.1BSD
running with Chaosnet patches from MIT. I'm adding a
Unibus CH11 network interface to SIMH. It's not working fully yet,
but it's close.
Please post updates as you go!!!
It's working now. I have also tested MINITS running on the pdp11
simulator. MINITS is a Chaosnet gateway, router, terminal concentrator,
graphical display, printer server, etc.
At one point there existed Chaosnet patches for PDP-11 Unix V7, but so
far I haven't found them.