I have a vast wealth of (unfortunate) experience with US West.... no kidding.
US West's internal customer care POLICY is to deny any problem with their
FR network.... it's nearly assured you're experiencing problems arising from
some of the US West extra-terrestrials.....
.... here's something to try on your next event:
extended ping; 1500 byte packets; 1 second intervals; 1000 itterations; bit
patterns of 0x4040 & 0xFFFF..... if you're missing every 20th =/- packet, rest
assured mate, it's in the frame network.
R...
Rainman
John Neiberger wrote:
> > >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.
> >
> > From CSU/DSU or router interface statistics, can you plot any pattern
> > from when you first get errors to when it goes red?
>
> We haven't really noticed a pattern. Although, this latest time the line
> died, the amount of time between bounces almost seemed to decrease
> logarithmically. First it would bounce every couple of weeks, then every
> few days, then every few hours, etc. until it was bouncing every 30-60
> seconds. At that point, I told them to do intrusive testing. They claim
> they didn't fix a thing but the line has been perfect ever since.
>
> >
> > >
> > >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.)
> >
> > I can't resist. Do you have a special problem with bean counters there?
>
> Perhaps those are the cause of the AIS errors (Actuarial Interference of
> Service) or the OOF errors (Overdose Of Fava). <g>
>
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