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LP alarms don't interrupt the service

Publication Date:  2012-07-24 Views:  105 Downloads:  0

Issue Description

      According to ITU-T, all low path alarms should send AIS downstream. In the NG-SDH equipments, it doesn't happen.
      

Alarm Information

LP_TIM
LP_UNEQ
LP-PLM
      

Handling Process

Nothing can be done. The insertion of AIS si disable on NG-SDH equipments because of historical problems.

Root Cause

All NG-SDH software is configured to not insert AIS downtream. This decision had been taken because of historical problems.

Suggestions

As the customer complained about this "out of standard" function, it should be intersting if this function could be configurable, like HP_TIM, HP_UNEQ and  HP_PLM.
This technical case should be accepted to inform another engineers if they face the same problems.

END