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Slip Errors on VWIC2-2MFT-E1 Cisco 2811

I am receiving slip errors on both E1 controllers despite following the recommended configuration steps found @ cisco.com. I have tried switching the line primary command from one controller to the other and setting one clock source to internal but i am still receiving errors. I suspect that this is causing voice problems on my network. Any help would be appreciated.

The current configuration i have is below

network-clock-participate wic 0

!

controller E1 0/0/0

clock source line primary

channel-group 0 timeslots 1-31

!

controller E1 0/0/1

framing NO-CRC4

pri-group timeslots 1-16

2811#sh controller e1

E1 0/0/0 is up.

Applique type is Channelized E1 - balanced

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20060926, FPGA: 13, spm_count = 0

Framing is CRC4, Line Code is HDB3, Clock Source is Line Primary.

CRC Threshold is 320. Reported from firmware is 320.

Data in current interval (255 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

9 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

9 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 1 15 minute intervals):

0 Line Code Violations, 0 Path Code Violations,

30 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

30 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

E1 0/0/1 is up.

Applique type is Channelized E1 - balanced

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20060926, FPGA: 13, spm_count = 0

Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.

CRC Threshold is 320. Reported from firmware is 320.

Data in current interval (254 seconds elapsed):

0 Line Code Violations, 8 Path Code Violations

7 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

7 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Total Data (last 1 15 minute intervals):

0 Line Code Violations, 12 Path Code Violations,

23 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,

23 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Slip Errors on VWIC2-2MFT-E1 Cisco 2811

Hi,

please add:

network-clock-select 1 E1 0/0/1 (or 0/0/0, try both). Clock source should be line if you are connecting to PSTN.

Hope this helps, please rate post if it does.

3 REPLIES
Hall of Fame Super Gold

Re: Slip Errors on VWIC2-2MFT-E1 Cisco 2811

Hi,

please add:

network-clock-select 1 E1 0/0/1 (or 0/0/0, try both). Clock source should be line if you are connecting to PSTN.

Hope this helps, please rate post if it does.

New Member

Re: Slip Errors on VWIC2-2MFT-E1 Cisco 2811

Thanks I managed to get it sorted in the meantime. I added network-clock-select 1 E1 0/0/1 and then changed the clock source for controller e1 0/0/1 to internal and it seems to be clean for the last 10 minutes. Many thanks you were certainly on the right track.

Hall of Fame Super Gold

Re: Slip Errors on VWIC2-2MFT-E1 Cisco 2811

Glad it helped, thanks and good luck!

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