PRI HER errors

[macca12]

Hello,
I have a CS1K at release 5 linked into a Mitel sytem via DPNSS. On all the DPNSS links we are receiving High Error Rate alarms, and after a certain amount of these the links drop out. I have no idea why these alarms are being generated. Any help would be greatly appreciated.

 

[SL1M1]

I would check your physical connections first, if you've got a spare card and Dchannel, carry out some local loop backs make end 'A' and the other 'B'end (Master or Slave)

It may also be a clocking issue - What are your primary/secondary sources

Cheers!!

 

[macca12]

The primary clocking sources are our carriers. I have 16 DPNSS links all showing this error, i would guess that it is possibly a clocking issue. Just not sure how to rectify it.
The links to our carrier are all healthy, its just the internal DPNSS to the Mitel that are showing errors.

 

[SL1M1]

You have '16' DPNSS links into the Mitel switch ?

Whats your addressing for DCHI usually 0-15 standard mode addressing and check your Alarm Thresholds values in LD 74 Reset in LD 75 'RCNT'

Have you configured your Virtual Channels VDC's aswell as Real Channels RDC's

Cheers!!