[Simh] What does "DUP" stand for ?

[Timothe Litt]

DUP-11 is a comm device - sync line controller.

The DUP protocol is part of the packet-based mass storage protocols used 
by CI (e.g. HSC), DSSI, and UQSSP controllers.
Yes, it's Diagnostic Utility Protocol.  It's used for configuring, 
monitoring and running diagnostics on the embedded microcontroller 
(often a PDP-11 or VAX) that runs a storage controller.

This communication may not represent my employer's views,
if any, on the matters discussed.

On 30-May-13 15:12, Mark Pizzolato - Info Comm wrote:
>
> The recent discussions about KMC11 and DUP11 are about specific 
> devices which existed in the past and were used to provide link layer 
> connectivity for host communicating via DECnet.
>
> This has absolutely nothing to do with the SET HOST /DUP.  From what I 
> recall, the /DUP in this usage stands/stood for "Diagnostic Utility 
> Protocol)".  This is the sum totol of my knowledge on this subject 
> though.  The VMS Help says:
>
> SET
>
> HOST
>
> /DUP
>
> Connects your terminal to a storage controller through the
>
> appropriate bus for that controller. The /SERVER and /TASK
>
> qualifiers are required.
>
> For use only with storage controllers. Requires the DIAGNOSE
>
> privilege.
>
> Format
>
> SET HOST/DUP/SERVER=server-name
>
> /TASK=task-name node-name
>
> Additional information available:
>
> Parameter  Qualifiers
>
> /LOG       /SERVER    /TASK
>
> Example
>
> *From:*simh-bounces at trailing-edge.com 
> [mailto:simh-bounces at trailing-edge.com] *On Behalf Of *Armistead, Jason
> *Sent:* Thursday, May 30, 2013 11:59 AM
> *To:* simh at trailing-edge.com
> *Subject:* [Simh] What does "DUP" stand for ?
>
> There's been a lot of discussion regarding KMC11 and DUP lately.
>
> Can someone remind me what the acronym DUP stands for ? I've done a 
> SET HOST /DUP /DSSI before on a VAX4000-300 to set up the DSSI disks, 
> but that was so long ago and I'm a bit rusty.
>
> Cheers
>
> Jason
>
>
>
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