On May 27, 2014, at 3:48 PM, Bob Armstrong <bob at jfcl.com> wrote: The way to run DECnet over a flaky long distance network is to use point to point mode with a data link layer that deals with packet loss. Probably a good idea, but we don't have that option on HECnet. Bob The latest SIMH has this (DDCMP, in the DMC/DMR/DMP/DMV emulation). paul