I am having trouble with several Point to Point T1 circuits. Two of these are between a couple 3640 routers. These routers are connected via a T1 to DS3 MUX to microwave hop to DS3 MUX back down to T1. There is no DACS in the circuit. My Current clock source is line on both ends of this circuit but I am seeing
show service-module serial 0/0
Total Data (last 96 15 minute intervals):
27 Line Code Violations, 601 Path Code Violations
0 Slip Secs, 11 Fr Loss Secs, 21 Line Err Secs, 15220 Degraded Mins
191 Errored Secs, 77 Bursty Err Secs, 11 Severely Err Secs, 0 Unavail Secs
I have heard that the clock source should be set to line AND I have heard that it shold be set to "internal". Which is correct for this WAN configuration? If timing off the line on both ends is correct where does the timing on the circuit come from?