Monitoring Capabilities

In this chapter

The parameters described in the chapter can be monitored from the application through the API or by using the monitoring tool (see monitoring in DN-0449).

Monitoring parameters can be divided into optical module parameters and SmartNIC parameters. They consist of both sensor parameters and state parameters.

Note: The sensor parameter values are updated every 5 seconds. This means that the values received at a user application can be up to 5 seconds old, and therefore might not reflect the current situation.

Optical module parameters

This table shows the sensor parameters available for monitoring for each optical module type. The mandatory parameters are available in all the relevant optical modules, whereas the optional parameters are module-dependent.

Note: QSFP56 modules, QSFP28 modules, CFP4 modules and QSFP+ modules (except for bidirectional modules) have four sensors for some of the parameters, one for each laser. These sensors measure TX bias current, TX power and RX power. Therefore, four values are available for each of these parameters.

Note: Bidirectional QSFP+ modules are not required to have sensors.

Table. Available sensor parameters of optical modules
Module	SmartNICs	Mandatory Parameters	Optional Parameters
QSFP56	NT400D13 running at 2 × 200 Gbit/s,	QSFP56 temp.	Supply voltage TX bias current (x4) TX power (x4) RX power (x4)
QSFP28	NT400D13 running at 2 × 100 Gbit/s, NT400D13 running at 8 × 25/10 Gbit/s, NT400D11 running at 2 × 100 Gbit/s, NT400D11 running at 8 × 25/10 Gbit/s, NT200A02 running at 2 × 100 Gbit/s, NT200A02 running at 4 × 25/10 Gbit/s, NT200A02 running at 2 × 25/10 Gbit/s	QSFP28 temp.	Supply voltage TX bias current (x4) TX power (x4) RX power (x4)
QSFP+	NT400D13 running at 2 × 40 Gbit/s, NT400D11 running at 2 × 40 Gbit/s, NT400D11 running at 8 × 25/10 Gbit/s NT200A02 running at 2 × 40 Gbit/s, NT200A02 running at 4 × 25/10 Gbit/s, NT200A02 running at 2 × 25/10 Gbit/s, NT200A02 running at 8 × 10 Gbit/s	QSFP+ temp.	Supply voltage TX bias current (x4) TX power (x4) RX power (x4)
SFP28	NT200A02 running at 2 × 25/10 Gbit/s (with a pluggable module adapter (PMA – see https://accessories.napatech.com/) enabling SFP28, SFP+ and SFP modules to be plugged into a QSFP28 port), NT100A01 running at 4 × 25/10 Gbit/s, NT50B01 running at 2 × 25/10 Gbit/s	SFP28 temp. Supply voltage TX bias current TX power RX power	Laser temp. TEC current
SFP+	NT200A02 running at 2 × 10/1 Gbit/s (with a pluggable module adapter (PMA – see https://accessories.napatech.com/) enabling SFP28, SFP+ and SFP modules to be plugged into a QSFP28 port), NT100A01 running at 4 × 10/1 Gbit/s, NT50B01 running at 2 × 10/1 Gbit/s, NT40A11 running at 4 × 10/1 Gbit/s, NT40A01 running at 4 × 10/1 Gbit/s, NT40E3-4-PTP running at 4 × 10/1 Gbit/s, NT20E3-2-PTP running at 2 × 10/1 Gbit/s		SFP+ temp. Supply voltage TX bias current TX power RX power
SFP	NT200A02 running at 2 × 1 Gbit/s (with a pluggable module adapter (PMA – see https://accessories.napatech.com/) enabling SFP28, SFP+ and SFP modules to be plugged into a QSFP28 port), NT100A01 running at 4 × 1 Gbit/s, NT50B01 running at 2 × 1 Gbit/s, NT40A11 running at 4 × 1 Gbit/s, NT40A01 running at 4 × 1 Gbit/s, NT40E3-4-PTP running at 4 × 1 Gbit/s, NT20E3-2-PTP running at 2 × 1 Gbit/s		SFP temp. Supply voltage TX bias current TX power RX power

For each optical module parameter the current value as well as the lowest and highest registered values can be retrieved. For some parameters also high and low alarm levels can be shown as well as the alarm state.

Note: One QSFP56/QSFP28/CFP4/QSFP+/SFP28/SFP+/SFP temperature level is significant for the SmartNICs: If a module exceeds its temperature threshold, the driver will log a warning message, and a high-temperature event is written to the hardware log. The event is also accessible to applications via the API, enabling real-time monitoring and response. It is encouraged to implement appropriate thermal management strategies and monitor logs regularly to prevent performance degradation or hardware damage.

Monitoring parameters for NT SmartNICs

This table shows the most important SmartNIC parameters of which the NT SmartNICs provide monitoring.

Table. Supported monitoring parameters
Parameter	Mode of Operation
Link status	Ethernet link status per port
PCB temperature	PCB temperature level and alarm
FPGA temperature	FPGA temperature level and alarm Automatic over-temperature shutdown Note: Three FPGA temperature levels are significant. See FPGA temperature thresholds. Note: When the LogToSystem parameter in the ntservice.ini file (see DN-0449) is set to `1`, the warning messages are also logged in the system log.
Time synchronization status	Status on SmartNIC time synchronization and loss of synchronization
Fan speed	Speed of the cooling fan Note: An out-of-range fan speed event is written to the hardware log if the fan rotates at a speed outside a specific range. The event can be monitored from the application through the API.
Critical temperature	Temperature of critical components
Power	Total power consumption

The following FPGA temperature thresholds apply:

Table. FPGA temperature limits
FPGA Temperature Level		Standard Action
NT400Dxx SmartNICs	Other SmartNICs	Standard Action
95 °C	90 °C	Message is created in the driver log. A high-temperature event is written to the hardware log and can be monitored through the API.
105 °C	95 °C	Driver triggers FPGA shutdown. A message is created in the driver log, the event is written to the hardware log, and the system LED flashes red. The SmartNIC remains in this state until the server is power-cycled (a hard reset). Applications must be restarted. The event can be monitored again through the API after reboot.
120 °C	125 °C	Automatic fail-safe shutdown performed by the FPGA (built-in). The event is written to the hardware log and can be monitored through the API.