We are using a Kentrox DS1 D-Serv using ESF and B8ZS. Before they ran their
last test on Friday I specifically asked them to check that sort of thing.
Perhaps that turned out to be the cause and they were just too embarrassed
to tell me. <g>
> Your LBO should be set to 0db. Do not change that. Put a line loop up
on
> your csu/dsu and test to that. If you run patterns to the loop clean,
then
> you likely have a good csu. If you are not comfortable testing your csu,
> swap it out and use a new one. What kind of are you using? It sounds
as
> if there might be some misoptioning on some equipment somewhere - could
be
> in telco land. Ask telco how provisioning designed the ckt. Is it
optioned
> esf/b8zs, d4/b8zs, esf/ami, etc.
>
> Makeeda
>
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > John Neiberger
> > Sent: Tuesday, June 27, 2000 1:05 PM
> > To: [EMAIL PROTECTED]
> > Cc: Dingeldey, Michael
> > Subject: RE: Slightly OT: Telco Line Problems
> >
> >
> > My guess is that yest, it is the fault of USWorst, but proving it is
> > difficult in this case. :-(
> >
> > The demarc is on the second floor of a supermarket on one side of the
> > building, while the extended demarc is on the bottom floor,
> > opposite side of
> > the building. LBO is set to 0db. Perhaps I should change this? That
is
> > one option that hadn't occured to me yet. If that were the case,
though,
> > wouldn't be experience problems all the time? Hmm...if the signal is
> > getting dangerously low, I suppose if there were some sort of
intermittent
> > interference in the building, that might cause the symptoms we're
> > experiencing. Food for thought!
> >
> > Thanks for the tips!
> >
> > John Neiberger, CCNA/CCDA
> >
> > > Hmm.... and it's not the fault of USWorst?
> > >
> > > A couple of things come to mind -
> > > You may in fact have a bad CSU; can you replace it with another unit
> > > and see what happens? How far are you from your demarc (where the
line
> > > enters the building)? And how is your line build-out set? Are
> > you running
> > > hot?
> > >
> > > BTW - what haven't they replaced? I have had arguments in the past
> > > with Telcos and providers who swear that their equipment is
> > not at fault.
> >
> > > Once they finally replace their equipment (usually their line
> > interface),
> > > everything works fine.
> > >
> > > HTH - that's my $.02
> > >
> > > Mike Dingeldey
> > >
> > > -----Original Message-----
> > > From: John Neiberger [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, June 27, 2000 12:11 PM
> > > 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
> > >
> > >
> > >
> > >
> > >
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