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Article #12474

Re: Networking problems in unusual configuration

#12474
From: Joe Michel-Angelo
Date: Fri, 05 May 1989 11:03
38 lines
2068 bytes
| We've been around and around with Sun on this; I have yet to talk to
| someone who struck me as halfway competent.  I've been dealing with Suns
| since '82 and am no novice at this stuff, but I can't seem to convince Sun
| of that (I get bullsh*t suggestions like "are your cables making good
| contact").

but are your cables making good contact? whenever nd or nfs fails but the
network looks good to test hardware, it's because of the following:

	- thin/thick net segment bad
	- bad bnc, barrel, or t connector
	- bad vamp connection

	- bad drop cable
	- bad drop cable connector/connection
	- drop cable too long ("they" say 50 feet is max; i say it's 15 or 25 feet)

	- giant network!  (the length of every segments adds to total length)

	- too many neighboring repeators (you should never have more then 2 repeators
				next to each other)
in bizzare cases:

	- isolan repeator power source in 220 and not 110 volts position
		(repeator works but only for small packets)
		(hey-- don't try this ....)

	- ethernet segment ground problem ... ie: grounded to an
		isolated ground ups and not mother earth.

	- xcvrs set with ENCODER on ... ENCODER option should be disabled.


-- 
"The Network         Joe Angelo,  VP/Technical Support - Support Group Division
 Adminstrator        Teknekron Software Systems, Palo Alto, CA     415-325-1025
 Is the Computer"    
                     joe@tss.com - uunet!tekbspa!joe - tekbspa!joe@uunet.uu.net
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Message-ID: <865@tekbspa.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
References: <8903301701.AA01450@lti.com>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: tekbspa!tss!joe@uunet.uu.net (Joe Michel-Angelo)
Newsgroups: comp.sys.sun
Subject: Re: Networking problems in unusual configuration
Keywords: Networks
Message-ID: <865@tekbspa.UUCP>
Date: 5 May 89 11:03:34 GMT
References: <8903301701.AA01450@lti.com>
Sender: usenet@rice.edu
Organization: Teknekron Software Systems, San Jose, CA.
Lines: 38
Approved: Sun-Spots@rice.edu
Original-Date: 27 Apr 89 07:04:42 GMT
X-Sun-Spots-Digest: Volume 7, Issue 267, message 2 of 10