Newlly deployed a 2811 router with two E1s MLPPP bunddle new brach office, at first all seem fine connected to MPLS provider. Then hours later users began complaining, looking at the E1 noticed lots of line code violations and one of the E1 keeps dropping from bundle.
MPLS provider says no issue on the trouble circuit, I have insisted and issue have been escalated.
I verified with provider clock source to be line properly configured.
Is there any way a bad controller can be the cause of line code violations, my understanding is the this could be trigger by either bad smart jacks or whatever at the CO side. I am using VWIC-2MFT-G703, if card was bad I would see the other E1 port bad but the other E1 is fine.
Im out of ideas, only thing I could do is invert the E1 circuit connections and place new cables and see hat happens.. this is very bad.
E1 0/0/0 is up.
Applique type is Channelized E1 - balanced
No alarms detected.
alarm-trigger is not set
Version info Firmware: 20060623, FPGA: 20, spm_count = 0
Framing is CRC4, Line Code is HDB3, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (632 seconds elapsed):
2523 Line Code Violations, 1889 Path Code Violations
69 Slip Secs, 0 Fr Loss Secs, 373 Line Err Secs, 6 Degraded Mins
Not sure if its your problem but when you set both to line and the clocks are slightly different between the 2 lines you get lots of slips. This card unlike the newer vwic2 cards only has a single clock.
Although it has not completely correct this when I have slip issue if you set one of the lines to internal it will take the clock from the other line.
In your case you are getting UNAVAIL seconds which generally means you have more than just a simple slipped clock.
Thanks for the reply, I will see the results tonight, provider told me it will send a tech to Tbird the lines to investigate fruther. This is a office branch in Honkong, we have same in London, same router, same controllers and there is no issues.
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