You have several input errors.
I would suggest you to engage the service provider again.
The actual layer 1 issues and its statistics are retrieved from the controllers so issue sh controllers for the serial 0/0. I guess this is a T1 line so "sh controllers T1 0/0"
It will probably show you statistics on intervals for each 15 minutes until the past 24 hours. Then, the last one is the sum of all statistics in the last 24 hrs.
Since you are seeing errors, engage the provider and ask them to make some tests.
Actually, remotely, the provider can not guarantee that there is no problem with its part. This is because the telco is not able to loop the smart jack interface using the customer side interface (Tx and Rx from smart jack that connects the CE).To do so, the only way to prove it, is to loop physically the smart jack using the loopback plug.
Remote tests don't prove the smartjack customer's interface (side). I may say it does not pass thru the entire smartjack if there is no loopback loop on it.
If the provider tells you that they are good until the smartjack (demark point) but not good to CSU, If they did not prove the smart jack physically it still might be a provider issue.
They must prove the smart jack to state that there are no issues.
Sometimes I have to keep pushing some technicians until they discover a problem related to the WAN circuit. depending on the provider, almost all tests are automated and nobody touch it.
Keep pusinhg the provider, of course, based on technical arguments.
sometimes, the providers have an external modem. They should check it also.
Then, if provider find nothing wrong after they prove the smartjack and chcking the modem, but you still see errors, check your equipment (its interface/WIC) and the cable.
Basically there are 3 kind of errors:
LOF - Loss of frame
LOS - Loss of signal
OOF - Out of frame
Anyway, there are several counters based on those 3 types and also based on the direction of the problems.
Regards,
