[Info-vax] An alternative history of computing

[Robert A. Brooks]

On 7/23/2021 12:36 PM, chris wrote:

> Full decnet was an expensive layered product, from memory, though
> a subset and run time libraries did come with vms.

I'm not sure what you mean by "run time libraries"; there is
no run-time-only DECnet option for either Phase IV or Phase V.

DECnet Phase IV was pretty simple -- you had either a routing license
or an end node license.  The X.25 stuff (VAX PSI) was separate, but that's not 
DECnet per se.  The NAS morass was simply a license bundling mechanism with
other stuff, but did not alter the DECnet functionality.

DECnet Phase V (known first as DECnet/OSI and now known as DECnet-Plus)
has more moving parts (the optional OSAK, FTAM, VT -- none of which require an 
extra license), and its licensing also essentially follows the routing/end-node 
paradigm.  The X.25 stuff is again separately licensed.

-- 
                  -- Rob