Dell Emulex Family of Adapters - Manual (Page 1535)

Boot Version 10.2 for NIC, iSCSI, FCoE, and RoCE Protocols User Manual P010097-01B Rev. A
3. Configuring PXE Boot for NIC on OCe14000-series Adapters
PXE Boot Process
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Figure 3-1 PXE Boot Process
Figure 3-1 shows the boot process.
1. The PXE boot ROM sends a DHCP request extended with PXE specific options (step
1 in the figure).
2. The DHCP responses contain the DHCP options (DHCPOFFERs) that include the
NBP filename and boot server lists (steps 2 through 5).
3. The PXE client attempts to download the specified NBP over TFTP from one of the
specified boot servers (steps 6 and 7).
4. The PXE client executes the downloaded NBP (steps 8 and 9).
Note: If any of these steps fail, the boot process typically continues using the next
available device in the boot sequence, depending on the system configuration
and boot order.