15–Microsoft Virtualization with Hyper-V
Teamed Network Adapters
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Windows Server 2008 R2
When configuring a team of 8400/3400 Series network adapters on a Hyper-V
system, be aware of the following:
Create the team prior to binding the team to the Hyper-V virtual network.
Create a team only with an adapter that is not already assigned to a Hyper-V
virtual network.
An ASP virtual adapter configured for VLAN tagging can be bound to a
Hyper-V virtual network, and is a supported configuration. However, the
VLAN tagging capability of ASP cannot be combined with the VLAN
capability of Hyper-V. To use the VLAN capability of Hyper-V, the ASP team
must be untagged.
When making changes to a team or removing a team, remove the team’s
binding from all guest OSs that use any of the VNICs in the team, change
the configuration, and then rebind the team’s VNICs to the guest OS. This
can be done in the Hyper-V Manager.
Configuring VMQ with SLB Teaming
When Hyper-V server is installed on a system configured to use Smart Load
Balance and Failover (SLB) type teaming, you can enable Virtual Machine
Queueing (VMQ) to improve overall network performance. VMQ enables
delivering packets from an external virtual network directly to virtual machines
defined in the SLB team, eliminating the need to route these packets and, thereby,
reducing overhead.
To create a VMQ-capable SLB team:
1.
Create an SLB team. If using the Teaming Wizard, when you select the SLB
team type, also select
Enable HyperV Mode
. If using Expert mode, enable
the property in the Create Team or Edit Team tabs. See
for additional instructions on creating a team.
2.
Follow these instructions to add the required registry entries in Windows:
http://technet.microsoft.com/en-us/library/gg162696%28v=ws.10%29.aspx
3.
For each team member on which you want to enable VMQ, modify the
following registry entry and configure a unique instance number (in the
following example, it is set to 0026):
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\
{4D36E972-E325-11CE-BFC1-08002BE10318}\0026]
"*RssOrVmqPreference"="1"
