Nvidia BlueField-2 InfiniBand User Manual

NVIDIA BlueField-2 InfiniBand/Ethernet DPU User Guide 36
The DPU incorporates 16GB @ 3200MT/s single DDR4 channel, 64bit + 8bit ECC, solder-
down memory.
NC-SI Management Interface
The DPU enables the connection of a Baseboard Management Controller (BMC) to a set
of Network Interface Controller (NICs) to enable out-of-band remote manageability. The
NC-SI management is supported over RMII and has a connector on the DPU. For
connecting to the NCSI RBT interface on the 20 or 30-pin connector, a customized cable is
needed based on the NC-SI Management Interface pinouts.
The below table specifies the maximum trace lengths on the board per board type.
Please take the maximum trace length on the board into consideration in your design.
DPU OPN Maximum Trace Length on the Board
MBF2M516C-EECOT
MBF2M516C-EESOT
MBF2H516C-EECOT
MBF2H516C-EESOT
5 inch in 30-pin connector
10 inch in 20-pin connector
MBF2M345A-HECOT
MBF2M345A-HESOT
3.3inch
MBF2H516A-EEEOT
MBF2H516A-EENOT
MBF2M516A-EECOT
MBF2M516A-EEEOT
MBF2M516A-EENOT
6inch
Important
The USB to UART cable is not used for NC-SI management purposes.

Nvidia BlueField-2 InfiniBand Specifications

General

Processor	Arm Cortex-A72
Connectivity	InfiniBand, Ethernet
Security	Hardware Root of Trust, Secure Boot
Crypto Acceleration	Yes
Architecture	Arm
PCIe Interface	PCIe 4.0 x16
Security Acceleration	Yes
Network Acceleration	Yes
Network Interface	InfiniBand
Memory	16GB DDR4
Form Factor	PCIe
Product Type	DPU (Data Processing Unit)
Ethernet Speed	200Gbps
Storage	NVMe over Fabric support
Networking Features	RDMA, RoCE, SR-IOV
Cores	8x Arm A72 cores