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Cisco Bug: CSCur48443 - [200G-CK-LC] OSNR uncorrectedly measured on 16-QAM, 200G

Last Modified

Feb 28, 2018

Products (1)

  • Cisco ONS 15454 Series Multiservice Provisioning Platforms

Known Affected Releases

10.30

Description (partial)

Symptom:
The implemented OSNR estimator for 16QAM modulation has a high measurement inaccuracy. The reported OSNR value in 16QAM mode could have more than +/- 3.5 dB inaccuracy.

Conditions:
under all conditions
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