* This is the modus mailing list * John,
See if you can do some checking to see what type of errors you are getting. It would be especially helpful if you can get someone in with a Tburd or Sunset meter to monitor the circuit at your prem. If you are getting bipolar violations, in my experience it's about a 99% probability that they are caused by a bad copper connection, ie the cable. The far side (carrier) won't see bipolars since those errors don't go across the smartjacks. One thing we do to verify bad customer equipment is put in a known good csu/dsu and loop it from the co and do a loopback and stress test it (we are a carrier) . If you get the local carrier to come out with a tester, you can also have them loop up and test the csu/dsu and router locally (directly plugged into it) to see if you still get the errors so as to further isolate the problem. Jon Saunders SECOM ----- Original Message ----- From: "Mark Thornton" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, October 29, 2003 7:48 AM Subject: [Modus] OT: T1 problems > * This is the modus mailing list * > > John, I have personally seen this sort of problem be two different things in > our office, 1) bad wiring between the smartjack and the dsu, and 2) bad dsu. > > Mark Thornton > San Marcos Internet, Inc > 512-393-5300 > > > ----- Original Message ----- > From: "John Fix 3rd" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, October 29, 2003 8:40 AM > Subject: [Modus] OT: T1 problems > > > > * This is the modus mailing list * > > > > We are having some problems with latency on our T1 and looking for some > > ideas on where to dig further. MCI/Verizon provide the circuit and they > say > > the line is clean. We use a Cisco 2501 and Kentrex D-Serv CSU/DSU. > We're > > getting dropped packets and on the CSU/DSU the "Far end" light > occasionally > > blinks yellow at the same time as the T1 "green" light goes off. MCI tech > > suspects the router or the cable between the Kentrex and the Cisco. I > doubt > > it's the cable and I've power cycled everything and reseated the cables. > > When MCI loops to the smart jack or the Kentrex they get a clean circuit > > (tested each for twenty minutes), but when they go to the router they get > > packet loss. > > > > Time for a new router (purchased in 1996)? Any other things to try? > > > > If you've got some ideas, please reply off-list. > > > > Thanks! > > > > John > > > > > > ** > > To unsubscribe, send an Email to: [EMAIL PROTECTED] > > with the word "UNSUBSCRIBE" in the body or subject line. > > > ** > To unsubscribe, send an Email to: [EMAIL PROTECTED] > with the word "UNSUBSCRIBE" in the body or subject line. > ** To unsubscribe, send an Email to: [EMAIL PROTECTED] with the word "UNSUBSCRIBE" in the body or subject line.
