Add Packetlight PL2000T CFP Uplink preFEC BER?

Current Packetlight OS support does not include CFP Uplink preFEC BER (bit error rate).  This is very important to monitor for any degradation in Coherent link quality and operating margin.

As this is retrieved as a compound value from two OIDs (as Mantissa and Exponent of a scientific notation number).

The relevant OIDs (within the slOTNCurrentPmTable table) are:

{{ .1.3.6.1.4.1.4515.1.1.15.2.1.1.6 -  slOTNCurrentPmFecCerMantFE}}

{{ .1.3.6.1.4.1.4515.1.1.15.2.1.1.7 -  slOTNCurrentPmFecCerExpFE}}

Which are followed by the corresponding ifIndex of the associated interface.

Only interfaces of the ifType 'opticalTransport' will have corresponding values in the slOTNCurrentPmTable.

I've attached the snmptable and walk command output of both the ifTable and slOTNCurrentPmTable tables.  As you can see, index 13157120 in the table has the following values:

• slOTNCurrentPmFecCerMantFE: 599
• slOTNCurrentPmFecCerExpFE:  6

This corresponds to an actual prefFEC BER of 5.99E-4, as per the devices WebUI:

Please let me know if you want any further test outputs to proceed with this?

Best regards,

Matt Clancy