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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

2762.0. "DNA5_AM and synonym's" by RDGENG::PRATT () Tue Apr 14 1992 15:09

Running Ultrix T1.2.4 and DNU T5.1-5

Question - Why does the PhaseV AM use synonyms only to get address information
for a node entity? I have registered my nodes with their full phaseV name as
well as their synonym, but when I double click on a node icon in my domain, MCC
goes and requests a synonym translation from DNS to resolve the name.

This is causing me severe problems when trying to manage my PhaseV network, as I
am relying on the availability of the synonym directory in the DEC: namespace - 
which has been known to be somewhat unreliable!

This is related to note 2684.0 and QAR 2651 (which in that instance was caused 
by a corrupt dns clerk cache which was preventing me from accessing .radish_ch, 
which holds the synonym directory). But today there is another problem with 
RADISH itself this time which means that the synonym directory is unreachable.

The result is that network mangement of my phaseV network is impossible at the
moment using MCC, so I have to use ncl which allows me to specify a full phaseV
name.

While I accept that this problem will not be so critical when it becomes 
possible to replicate the synonym directory in the DEC: namespace, I cannot 
think of one good reason why the DNA5 AM doesn't allow use of the full name.

Ian Pratt

Reading Engineering
T.RTitleUserPersonal
Name
DateLines
2762.1Must work from both environmentsTOOK::PURRETTATue Apr 14 1992 16:0112
The PhaseV AM must be able to manage DECnet PhaseV nodes even when the
director is running on a DECnet PhaseIV node.  That is a requirement.
So, it uses PhaseIV compatibility mode when making management requests.
It does this using an NCB and QIO on VMS, and PhaseIV socket connections
on Ultrix.  That is why we need the node synonym.

We have plans for a future release of the AM to determine which phase
of DECnet we're running on and use the native connection modes; IPC on VMS
and the DECnetOSI socket defs on Ultrix.

John