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From: cetron%utah-cbd@UTAH-CS.ARPA.UUCP
Newsgroups: mod.computers.vax
Subject: microVMS 4.4, DECnet 4.4 and DEQNA's
Message-ID: <8606101651.AA18211@utah-cbd.ARPA>
Date: Tue, 10-Jun-86 12:51:28 EDT
Article-I.D.: utah-cbd.8606101651.AA18211
Posted: Tue Jun 10 12:51:28 1986
Date-Received: Wed, 11-Jun-86 19:04:07 EDT
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	I recently brought up uVMS 4.4 with no apparent trouble on
my MVII.  All seems well except the DECnet keeps going up and down
every 7-12 minutes....messages like:

	DECnet event 4.7, circuit down, circuit fault
	...
	Circuit QNA-0, Line synchronization lost


	DECnet event 4.10, circuit up
	...
	Circuit QNA-0

	
and this repeats roughly 4-6 times and then stays up for 7-12 minutes....
over the weekend I produced 120 pages of OPCOM messages....I have since
turned off monitor logging of events 4.7 and 4.10 and the system seems
more robust (it stays up 10-15 minutes now)....

	The afflicted MVII connects into a DELNI with another MVII running
4.2, an 11/44 running RSX-11M+ DECnet, an 11/73 MINC  running RSX-11M+ DECnet
as well as a 750 and an HP bobcat running TCP/IP. Then DELNI then connects into
a larger TCP/IP speaking ethernet... None of the UNIBUS machines show any line
synchronization problems.  The 11/73 MINC (with a DEQNA) shows no problems. The
other MVII  running uVMS 4.2 shows roughly 2-4 cycles per day of this same 
pattern.

	Has anyone else noticed this problem?  Is it hardware? or the new 4.4?

-ed		cetron%utah-cbd@utah-cs.arpa