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15–QLogic Teaming Services
General Network Considerations
Preboot Execution Environment
The Preboot Execution Environment (PXE) allows a system to boot from an
operating system image over the network. By definition, PXE is invoked before an
operating system is loaded, so there is no opportunity for the QLASP intermediate
driver to load and enable a team. As a result, teaming is not supported as a PXE
client, though a physical adapter that participates in a team when the operating
system is loaded may be used as a PXE client. Whereas a teamed adapter
cannot be used as a PXE client, it can be used for a PXE server, which provides
operating system images to PXE clients using a combination of Dynamic Host
Control Protocol (DHCP) and the Trivial File Transfer Protocol (TFTP). Both of
these protocols operate over IP and are supported by all teaming modes.
General Network Considerations
Teaming with Microsoft Virtual Server 2005
Teaming Across Switches
Spanning Tree Algorithm
Layer 3 Routing/Switching
Teaming with Hubs (for troubleshooting purposes only)
Teaming with Microsoft NLB
Teaming with Microsoft Virtual Server 2005
The only supported QLASP team configuration when using Microsoft Virtual
Server 2005 is with a Smart Load Balancing team-type consisting of a single
primary QLogic adapter and a standby QLogic adapter. Make sure to unbind or
deselect "Virtual Machine Network Services" from each team member prior to
creating a team and prior to creating Virtual networks with Microsoft Virtual Server.
Additionally, a virtual network should be created in this software and subsequently
bound to the virtual adapter created by a team. Directly binding a Guest operating
system to a team virtual adapter may not render the desired results.
NOTE
As of this writing, Windows Server 2008 is not a supported operating system
for Microsoft Virtual Server 2005; thus, teaming may not function as
expected with this combination.
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Troubleshooting
