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Article View: comp.sys.sgi.admin
Article #247

Re: SGI Misinterpretting the FDDI Standard

#247
From: Mike O'Connor
Date: Wed, 29 Dec 1999 00:00
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Adding the FDDI newsgroup to the Newsgroups: line...

In article <386A165D.7ABA9E9@NOSPAM.hotmail.com>,
Scott Cheadle  <schead@NOSPAM.hotmail.com> wrote:
:I have had this ongoing problem with SGI now for over a year, and the
:problem is still not fixed. I was wondering if anyone else uses SGI
:Challenge L's, or O2's to connect through an FDDI ring to a DIGITAL
:Concentrator. Basically, the problem is, that IRIX sends a Break Signal
:to the redundant A port once every 50 seconds. This in turn triggers the
:SNMP collector to send a trap to HP Openview, triggering an alarm. We
:have DU, HP-UX, AIX, and IRIX, and IRIX is the only offending system,
:however all SGI seem to be interested in is in blaming Digital's
:Concentrators, and not in solving the problem. It is apparent that they
:realise this is their problem, but they do not seem particuarly keen to
:investigate, (Indeed all they have done, is to give us a Test O2
:machine, and ask us to do the testing and debugging for them.). Does
:anyone else use Digital Concentrators with SGI IRIX, and if so, have you
:also experienced problems?.

If you're seeing what I think you're seeing, I believe that FDDI is
_supposed_ to do LCT every 50 seconds to check for the DAS link state.
Check out both the URLs below for a good writeup of the situation:

http://www.iol.unh.edu/training/fddi/htmls/lct.html 
http://www.deja.com/=dnc/getdoc.xp?AN=358717781 

Shouldn't OpenView take this into account?

--
 Michael J. O'Connor | WWW: http://dojo.mi.org/~mjo/ | Email: mjo@dojo.mi.org
 InterNIC WHOIS: MJO | (has my PGP & Geek Code info) | Phone: +1 248-848-4481
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From: Mike O'Connor <mjo@dojo.mi.org>
Subject: Re: SGI Misinterpretting the FDDI Standard
Date: 1999/12/29
Message-ID: <991229150537.AA26816@dojo.mi.org>
X-Deja-AN: 566124683
References: <386A165D.7ABA9E9@NOSPAM.hotmail.com>
Organization: Project Mayhem
Reply-To: Mike O'Connor <mjo@dojo.mi.org>
Newsgroups: comp.sys.sgi.admin,alt.unix.wizards,demon.tech.unix,comp.dcom.lans.fddi