[Info-vax] Reject Cause=Invalid Message Format, Erroneous Transport PDU='386200BD00000005'H

Scott Dorsey kludge at panix.com
Sat Nov 26 18:54:14 EST 2016


Supratim Sanyal wrote:
> Hi,
>
> I am no network expert and looking for help.
>
> Two SIMH OpenVMS 7.3 DECnet Plus nodes - QCOCAL (1.550) and CLOUDY
> (1.551), connected over Johnny's UDP bridge. FAL directories across the
> network work fine. However I cannot get NCP status from the remote host
> from either. Also the circuits do not seem to be setting themselves up,
> I don't know if that is a cause or effect of the Remote Protocol Errors.
>
> Note: A SIMH PDP-11/24 (JUICHI, 1.552) runnign RSX-11M-PLUS is colocated
> (running on the same linux host) with CLOUDY, and NCP queries somehow
> work fine to it.

RSX-11+ supports Phase V?
I don't think it does.

So, if the query is working on the RSX-11 node, it is likely a Phase IV
query.  And likely won't work on the Phase V node.

Mixing Phase V and Phase IV can be done but is best avoided.
--scott

-- 
"C'est un Nagra. C'est suisse, et tres, tres precis."



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