Path: utzoo!attcan!uunet!bu.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!psuvax1!rutgers!cbmvax!grr
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.dec
Subject: Re: Dec DEMPR problems
Message-ID: <15628@cbmvax.commodore.com>
Date: 6 Nov 90 00:44:26 GMT
References: <9609.27355227@ul.ie>
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Organization: Commodore, West Chester, PA
Lines: 22
Summary:
Expires:

In article <9609.27355227@ul.ie> hickeyd@ul.ie writes:
> We are experiencing network problems on our ethernet lan. Large quantities
> of CRC errors are occurring. Our focus is on the Dec DEMPR units. Has anyone
> experienced difficulties with these units.

I don't know of any specific ill repute associated with DEMPR's.  Our last
major net disease was one bad thin wire ethernet card that was slobbering
over everybody else's messages, and *not* being isolated by our thin-wire
device (cabletron DEMPR equivalent).

Check that your ethernet follows the conservative side of all the ethernet
configuration rules, then start unplugging things till you isolate the bad
branch/unit...  If this isn't a breakdown, but an on-going problem you've
just recognized, check the cabling and little things like heart-beat presence
corresponding to type of device.

pithy quote of the day:
"...the worst problem with thin-wire is the existance of arcnet cables"...
-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr@cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)