MBCD ERROR update_flow

Hi all,

 

First of all, I am absolutely a newbie to SBC and would like to hear your opinion on the following error.

 

We experience this error message on the SBC system which resulted in the CPU utilization (56%) and is keep increasing. The error through our monitoring system is;

 

"mbcd[2e17d894] ERROR update_flow: no such PPM found for flow 81634".  The number 81634 is variable as per log messages.

 

I have no idea what could have caused "Middle Box Control Daemon (MBCD)" error. 

 

We have no problems with the calls sessions end-to-end but wondered about the high CPU utilization. The system was stable up to yesterday (below 20% CPU load). See attachment.