After battling with Qwest for weeks on a T-1 that would fail every few
days, I got Qwest's technician plus technicians from both telco sites on an
extremely tedious, 7-hour conference call. Qwest insisted that they were
seeing errors coming from both telco ends, while the telco said that they were
seeing line errors coming from the middle (Qwest). A couple of days before, I
had an MCI line put in, same telco. At the end of the call, I told Qwest,
"I've replaced both sets of routers and csus. I'm going to move the line over
to MCI's smartjack now, and we'll see if the errors continue."
I moved the line over, and the errors disappeared. After everyone saw that
the errors had gone, we mysteriously lost Qwest from the phone call...
True story
David Toalson <[EMAIL PROTECTED]> wrote:
Intermittent problems are the worst. I have had problems like this in
the past and have found two potential remedies.
1. Make US West put their best technician on this issue and to have
them place a TBird type tester on site and at the CO to verify they are
getting to your CSU. It may take quiet a while to catch the errors, but
should not interfere with you operations.
2. If you have a spare, change out the CSU. This will either fix the
problem or show that it is not in your equipment.
Two of the times we had this type of problem the Telco replaced their
newbridge switch at the CO and that corrected the problem. It would
also help greatly for you to find out from their support group if there
are any other customers that are having the same type of problem. That
is how we finally convinced the Telco it was their problem.
I have also had several times that the Telco has "tested" a line and not
done anything, but fixed the problem.
Good luck!
David Toalson
816-701-4142
> ----------
> From: John Neiberger[SMTP:[EMAIL PROTECTED]]
> Reply To: John Neiberger
> Sent: Tuesday, June 27, 2000 11:11 AM
> To: [EMAIL PROTECTED]
> Subject: Slightly OT: Telco Line Problems
>
> We are having some odd line problems at one of our branches that none
> of us
> have been able to figure out so I thought I'd throw this one out to
> the
> group.
>
> From time to time, sometimes many weeks in between events, our csu/dsu
> begins to report OOF and AIS (T1 yellow alarm) errors, but the line
> will
> stay up for a while. Then, at some point, we'll get a T1 red alarm
> and the
> circuit will die. We call USWest who then tests the line. According
> to
> them, they've replaced just about everything between the CO and our
> location, and the line tests clean. Friday it was bouncing every
> 30-60
> seconds so we had them test it again. Since the test, it has been
> error
> free but they claim not to have discovered any problems.
>
> This is the endless cycle so far: the line dies, they test, they
> report no
> problems, line mysteriously works fine after test for a several weeks,
> the
> line has problems, the line dies, they test...etc.
>
> My only remaining guesses are these two: bad csu/dsu that isn't bad
> all the
> time, or intermittent problems at the location (we share it with a
> very
> large supermarket.)
>
> Any thoughts?
>
> TIA,
> John Neiberger, CCNA/CCDA
>
>
>
>
Arthur Davis
Network Engineer
Altra Energy Technologies
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