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3.3.9 1GbE OOB Management Interface
The DPU incorporates a 1GbE RJ45 out-of-band port that allows the network operator to establish trust boundaries in accessing the management function to
apply it to network resources. It can also be used to ensure management connectivity (including the ability to determine the status of any network component)
independent of other in-band network components' status.
For DPUs with integrated BMC: 1GbE OOB Management can be performed via the integrated BMC.
3.3.9.1
1GbE OOB Management LEDs Interface
Two OOB management LEDs, one Green and one Yellow, behave as described in the table below.
Green LED
OFF
ON
Blinking
OFF
OFF
ON
Blinking
3.3.10 PPS IN/OUT Interface
The DPU incorporates an integrated Hardware Clock (PHC) that allows the DPU to achieve sub-20u Sec accuracy and also offers many timing-related functions
such as time-triggered scheduling or time-based SND accelerations (time-based ASAP²). Furthermore, 5T technology enables the software application to
transmit fronthaul (ORAN) at high bandwidth. The PTP part supports the subordinate clock, master clock, and boundary clock.
The DPU PTP solution allows you to run any PTP stack on your host.
With respect to testing and measurements, selected NVIDIA DPUs allow you to use the PPS-out signal from the onboard MMCX RA connecter. The DPU also
allows measuring PTP in scale with the PPS-In signal. The PTP HW clock on the Network adapter is sampled on each PPS-In signal, and the timestamp is sent to
the SW.
NVIDIA BlueField-3 DPU User Guide
Yellow LED
OFF
OFF
OFF
ON
Blinking
ON
Blinking
Link/Activity
Link off
1 Gb/s link / No activity
1 Gb/s link / Activity (RX,TX)
Not supported
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