[HECnet] DECnet Phase-V usage within HECnet

Paul Koning paulkoning at comcast.net
Mon Feb 18 09:18:00 PST 2019



> On Feb 18, 2019, at 11:42 AM, Steve Davidson <steve at davidson.net> wrote:
> 
> Anyone using DECnet Phase-V on VAX/VMS V7.3 in the HECnet community?
> 
> I am rebuilding SGC::.  It is MUCH bigger and faster so I may go the Phase-V route if it has any real value.  Comments?
> 
> Thanks!
> 
> -Steve

My view is that Phase V has real value in two cases: 

(1) you're connecting to non-DEC systems that speak OSI.  I'm not sure how many are out there.  A CDC mainframe running the later NOS versions with CDCNET support would be an example, but I'm not sure that the CDCNET emulation in DtCyber includes those parts.

(2) you have a DECnet network that's large enough to make 16 bit addresses problematic.  The DEC internal network (originally "Engineering Network") is one, but I don't know if anyone else ever built a DECnet large enough for this to apply.  HECnet is probably still under 1000 nodes at the moment, so it doesn't seem to apply here.

	paul




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