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T1 Controller question

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RobG2001

MIS
Oct 5, 2001
89
US
On a T1 I'm having trouble with there is an entry when I do a "sh controller T1" command:

Current port master clock: recovered from controller 3/1

What does this mean? This T1 is supposed to clock off the line which I did set.
 
Is there a problem you're troubleshooting or is this just for curiosity? If you have an error message I can help you to decode it.

T1 PRI Troubleshooting


The only reference i was able to find:
If either controller is the active clock source, the network-clock PLL switch is thrown in the direction of the active clock. The system clock is recovered from the controller with the active clock source.

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Tons of errors but getting no where with AT&T. My remote side is providing clock and this end is clocking off line but still I have problems on this end. The remote side has no errors and when At&t loops this end up, the errors go away.

Val.3662#sh controllers t1 3/1 brief
T1 3/1 is up.
Applique type is Channelized T1
Cablelength is short 133
Description: T1 to Las Vegas
No alarms detected.
alarm-trigger is not set
Version info Firmware: 20000922, FPGA: 15
Framing is ESF, FDL is ansi & att, Line Code is B8ZS, Clock Source is Line Primary.
Current port master clock: recovered from controller 3/1
Data in current interval (156 seconds elapsed):
3187 Line Code Violations, 6368 Path Code Violations
145 Slip Secs, 0 Fr Loss Secs, 141 Line Err Secs, 2 Degraded Mins
116 Errored Secs, 115 Bursty Err Secs, 29 Severely Err Secs, 0 Unavail Secs
 
Update:
Opened a Cisco case on this and what they're telling me is that I need to separate the two VWICs into two different NM on the router. Apparently there is a design issue/limitation with these VWICs that has to do with the clock. I will post the result
 
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