We have a customer with a slipping T1 circuit that I can't seem to nail down.
It's not only slipping, please see the errors list below.
T1 1/0 is up.
Applique type is Channelized T1
Cablelength is short 133
Description: PSTN Facing PRI
No alarms detected.
alarm-trigger is not set
Version info Firmware: 20031216, FPGA: 11
Framing is ESF, Line Code is B8ZS, Clock Source Line Primary.
CRC Threshold is 320. Reported from firmware is 0.
Data in current interval (500 seconds elapsed):
20 Line Code Violations, 20 Path Code Violations
1 Slip Secs, 0 Fr Loss Secs, 8 Line Err Secs, 3 Degraded Mins
13 Errored Secs, 3 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs
Total Data (last 92 15 minute intervals):
1631 Line Code Violations, 4633 Path Code Violations,
107 Slip Secs, 999 Fr Loss Secs, 608 Line Err Secs, 232 Degraded Mins,
917 Errored Secs, 252 Bursty Err Secs, 2 Severely Err Secs, 1002 Unavail Secs
As you can see it's not TOO dirty but it's enough that the users are noticing clicks and noise. Protocols are of course correct, provider has complete an end to end test of the circuit and they see no issues. VG200 gateway running 12.3.6 We have changed the entire gateway, upgraded IOS, changed WIC's.