Item on Label Description Example/Additional Information
GUID (Global Unique
Identifier)
GUIDs is a unique 16 byte identifier
of the BlueField in an InfiniBand
network, the GUID never changes.
The GUID on the label is assigned to the
System GUID of the BlueField HCA.
The System GUID represents the HCA
hardware with all its ports. Each HCA
port is assigned a dedicated Node GUID.
The Node GUID of port 0 is equal to the
System GUID.
The Node GUID of port 1 is equal to the
System GUID+1
HOST (Base MAC) Represents the base MAC address for
high-speed data port 0
DPUs with more than one high-speed
port will use incremental (+1) MAC
addresses against the base HOST MAC on
the label.
For instance:
From the label - HOST: 94 6D AE F5 A1
CC
Port 0: 94 6D AE F5 A1 CC (same as
label)
Port 1: 94 6D AE F5 A1 CD (+1 from
base)
Port 2: 94 6D AE F5 A1 CE (+2 from base)
Port 3: 94 6D AE F5 A1 CF (+3 from base)
ECPF (Embedded CPU
Physical Function)
ECPF encompasses the embedded
Arm system responsible for managing
NIC resources and controlling the
data path.
Each physical high-speed port is
allocated one ECPF. The base ECPF MAC
is displayed on the label and is
associated with Port 0. The second port
(Port 1) receives base-ECPF+1 MAC
address and so forth, similar to HOST
MAC allocation pattern described
above.
MPF (Multi/Management
Physical Function)
For future use. N/A
OOB (Out-of-Band) OOB represents the MAC address of
the 1GbE out-of-band management
port of the DPU's embedded Arm
system.
Network traffic for the "OOB" (DPU
embedded Arm system) and "DPU BMC"
traverse through the 1GbE RJ-45
connector located on the front panel of
the DPU card.
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