Summary network problems

From: Paul J Humphreys (paul@rain.uucp)
Date: Sat Sep 25 1993 - 09:08:06 CDT

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here is my summary - also has any one got a little program
like ping that sends a message out and indicates how long
it took to get back a reply from the host the message was sent
to ? a bit like ping I guess..

You didn't mention what sort of wire you're using. Thin-net, twisted
pair, thick-net? Many time, we've seen similar behavior from a single
thin-net connection which has "gone bad", usually due to "minor"
equipment moving, feet kicking, etc., etc. Sometimes a *very* light
touch on the connector will make everything okay, as far as
performance goes, which means, of course, it'll wait until a critical
need to foul up again.

To be more responsive to your request, I'd get one of the lower-end
TDR boxes and find a local wizard to TEACH you how to use it. If he
or she does a good job teaching, *then* I'd grant the title "guru",
not before.

Moderation in all things, except love.
Louis M. Brune ANDATACO
louis@andataco.com 10140 Mesa Rim Road
619-453-9191 x1601 San Diego, CA. 92121

Paul,

For what it's worth here my two cents:

        1. Your basic problem sounds most like a bad cable somewhere in
            the equation. (Or possibly a transceiver device gone bad
            at the server?)

        2. For problems like these, after the first few times they
            crop up, they are usually pretty easy to identify. You'll
            probably do better to develop some in-house resources to
            look after these things. Consultants are ok. occasionally,
            but they get awfully expensive -- fast.

        3. As for horsepower and bandwidth - you should be fine. I've
            made NFS work(experimentally) over a 19K SLIP link - I doubt
            that you have any real problem there.

Best of luck tracking down the rogue parts...

Glenn

The network managers let you track data and perform at least some basic
statistical analysis of your network activity. In addition, you can set
thresholds for some measurements (let's say packets or % utilisation) and
send alarms when these are reached or exceeded.

Its a start, and it will let you know what trends are for your network.

Hope this helps.

-- Paul Begley Internet: peb@scdipc0.ueci.com Raytheon Engineers & Constructors Voice: 215-422-3997 Philadelphia, PA FAX:

Paul Humphreys ( Postmaster ) paul@hydres.uucp HR Wallingford paul%hydres.uucp@uknet.ac.uk Howbery Park Wallingford Tel: 0491-835381 X2292 Oxon Fax: 0491-832233 OX10-8BA

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