What are two methods for accessing the operating system on a BlueField DPU?

Accessing theBlueField DPU Operating System (OS)is possible throughrshim, either over PCIe or USB, and viaSSH through the OOB interfacewhen in DPU mode.

From theNVIDIA BlueField Software Documentation:

"You can access the BlueField OS through the rshim interface. The rshim module enables host-to-DPU communication either via PCIe (default) or USB."

B. rshim over PCIe: Default when BlueField is installed in a host.

D. rshim over USB: Useful for provisioning or systems without PCIe drivers.

Incorrect Options:

A (NIC mode): BlueField acts as a transparent NIC; OS access is not available to the host.

C (Redfish): Redfish is for out-of-band management, not direct OS-level access.