3.3.9 1GbE OOB Management Interface
BlueField-3 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.
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 Yellow LED Link/Activity
OFF OFF Link off
ON OFF 1 Gb/s link / No activity
Blinking OFF 1 Gb/s link / Activity (RX,TX)
OFF ON Not supported
OFF Blinking
ON ON
Blinking Blinking
3.3.10 PPS IN/OUT Interface
BlueField-3 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.
It is prohibited to connect male-to-male to host, it is only used for a disk on key.
The male connector to the male Type-A cable is not included in the shipped DPU card box
and should be ordered separately as part of the accessories kit (P/N: MBF35-DKIT).
For DPUs with integrated BMC: 1GbE OOB Management can be performed via the integrated
BMC.
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