Thank you for your teaching.
Certainly, the Average Tx/Rx parameter is listed in the Optical parameter item, but the light intensity is too wide, and the value is quite different from other companies' products.
As an experience, I was concerned that there was no more threshold information to be monitored because I would be offline much faster than the Average value here, or because I would receive an error count from Bad_Words and be errdisable by portguard.
In addition, when we examined information about SFPs from other companies' products, we determined the threshold value by referring to this value as the value of whether the OMA value meets the standard, but we did not have that information for Cisco, so I was asked.
Compliance with Industry Standards
OMA is an essential parameter for verifying whether an optical module meets industry standards, such as those defined by IEEE, ITU, and other regulatory bodies. During production and testing, OMA measurements are used to ensure the optical module meets the required performance thresholds and is suitable for deployment.
https://community.fs.com/encyclopedia/optical-modulation-amplitude-.html
Transmit (Tx):
・ Wavelength: 840 nm to 860 nm
・ Spectral width: 0.6 nm
・ Average power: -7.5 dBm to 4 dBm
・ RIN: -128 dB/Hz max
· OMA: -4.5 dBm min (355 µW)
Receive (Rx):
・ Wavelength: 840 nm to 860 nm
・ Average power: 4 dBm max
・ Optical return loss: 12 dB min
· Unstressed sensitivity: -7 dBm (200 µW)
· SRS OMA: -2.4 dBm (575 µW)
・ 3-dB cutoff maximum: 18 GHz
https://docs.broadcom.com/doc/Brocade-64G-SWL-SFP+-Transceiver-Product-Brief
