RNRP Diagnostic Counters
What is the significance of RNRP Diagnostic counters, what is considered as normal or if there is an issue to be addressed? is this something we need to check regularly.
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Ensure controller CPU load is not too high.
Most AC 800M controllers run Ethernet at half duplex where some losses are natural and even expected.
Make sure AC 800M task tuning is adequate (eg do not allow too long continuous execution of any task, preferably no more than 100ms). Use Task Delay/Offset to create "breathing room" between task blocks. At least 10-20ms.
The RNRP Fault Tracer tool can be used to turn on Interface Logging which will have RNRP to output more details of which message and from whom a problem is detected. Check controller log for full details.
Counter values like RNRP Diagnostic counters, Module Bus fail counters etc., are very useful for troubleshooting an issue irrespective of Installation, Commissioning or Post SAT stage.
In an ideal scenario, there shall not be any message lost and/or message delayed in a healthy network.
Switchover also shall occur only in case of any issue in the redundant system.
We can add this in Annual Maintenance checklist.