Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!brutus.cs.uiuc.edu!ux1.cso.uiuc.edu!randy
From: randy@ux1.cso.uiuc.edu (Randy E. Cotton)
Newsgroups: comp.protocols.appletalk
Subject: Re: Imagewriter II's jamming my network
Keywords: imagewriter trouble
Message-ID: <1990Aug7.041710.22342@ux1.cso.uiuc.edu>
Date: 7 Aug 90 04:17:10 GMT
References: <977@lclark.UUCP>
Organization: University of Illinois at Urbana
Lines: 39

dan@lclark.UUCP (Dan Revel) writes:

>We have a couple Appletalk/Localtalk networks on campus with
>about 25 macs (pluses and SEs) and 5 imagewriter IIs.  We have
>recently connected these nets with other localtalk nets using
>Shiva NetBridges.  Now the Imagewriters (w/appletalk option 
>cards) have taking to jamming our networks.

Me too! Me too! I have one particular Imagewriter II that periodically
jams some or all Appletalk communications. When it happens the red
LED light flashes a particular sequence - something like two short flashes
and a long flash, not sure. This is especially catastrophic for us
because we run the Novell Mac VAPs and when the Imagewriter freaks out,
the connections to the file server evaporate. I had to quarantine the
offending printer. Does anyone have any idea what could be causing
this?  I suspect it's something wrong with the appletalk option board,
but I would be much more comfortable knowing more precisely what the
problem was before I go replacing these boards willy nilly.

>  I am told that
>this behavior may be related to printing packets getting lost
>and printers not recovering from the error.  Does anyone know
>if this is indeed what is happening?  Any suggestions on how
>to go about alleviating the problem?  ( We have discussed a
>number of possibilities that all involve throwing money at the
>problem, e.g. replacing the imagewriters with or reconfiguring
>each net with a starcontroller )  Comments?

>Thanks,
>Daneher

>-- 
>dan@lclark
>tektronix!reed!lclark!dan			Dylsexics untie! (-|
-- 
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