Digital diagnostics monitoring

Overview

The NFM-P displays the following digital diagnostics monitoring data and alarm and warning information for ports on CFPs, QSFPs, SFPs and XFPs optical modular transceivers:

• temperature

• supply voltage (SFP)

• TX bias

• TX output power

• RX received optical power

• external calibration

The transceiver is programmed with warning and alarm thresholds for low and high conditions that can generate system events. The thresholds for CFPs, QSFPs, SFPs, and XFPs are programmed by the transceiver manufacturer. The NFM-P raises an alarm when these thresholds are exceeded.

You can view digital diagnostics monitoring information from the DDM tab and the Lane DDM tab on the property form of supported ports. The External Calibration tab is available if the ports on CFPs, QSFPs, SFPs, and XFPs optical modular transceivers support the external calibration functionality.

1830 VWM − DDM data retrieval

The NFM-P supports DDM data retrieval from each optical SFP in the data and control plane. See To retrieve 1830 VWM DDM data for more information about how to retrieve 1830 VWM DDM data.

The following DDM data is retrieved from the local 1830 VWM devices or from the 1830 VWM RMUs:

• DDM received power

• DDM transmitted power

• DDM laser bias current

• DDM temperature

• DDM voltage