6–Configuring NIC Functionality in the Converged Network Adapter
Configuring the NIC in a Windows Environment
FE0254601-00 A 6-27
3. Set up client servers BIOS boot order. Select 8100 Series NIC as the first
boot device in the Boot order/Boot Device priority (Figure 6-21). The two
QLogic UNDI v1.11 PXE-2 entries are dual-port QLogic 8100 Series
Adapters.
Figure 6-21. Boot Order in BIOS
4. Reboot the client system to boot over the network from the PXE boot server.
PXE Protocol Operation
The PXE protocol, illustrated in Figure 6-22, operates as follows:
1. The client initiates the protocol by broadcasting a DHCPDISCOVER
containing an extension that identifies the request as one coming from a
client that implements the PXE protocol.
2. Assuming that a DHCP server or a proxy DHCP server is available that is
capable of implementing this extended protocol, after several intermediate
steps, the server sends a list of appropriate boot servers to the client.
3. The client then discovers a boot server of the selected type and receives the
name of an executable file on the chosen boot server.
4. The client uses TFTP to download the executable from the boot server.
5. Finally, the client executes the downloaded image. At this point, the client's
state must meet certain requirements to provide a predictable environment
for the image. These requirements include the availability of certain areas of
the client's main memory and the availability of basic network I/O services.
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