Microsoft Virtualization With Hyper-V; Single Network Adapter; Windows Server 2008 - Dell Broadcom NetXtreme Family of Adapters User Manual

Troubleshooting: Broadcom NetXtreme II Network Adapter User Guide
Ping an IP host on the network to verify connection has been established.
From the command line, type ping IP address, and then press ENTER.
The ping statistics that are displayed indicate whether or not the network connection is working.

Microsoft Virtualization with Hyper-V

Microsoft Virtualization is a hypervisor virtualization system for Windows Server 2008 and Windows Server 2008 R2. This
section is intended for those who are familiar with Hyper-V, and it addresses issues that affect the configuration of
NetXtreme II network adapters and teamed network adapters when Hyper-V is used. For more information on Hyper-V, see
http://www.microsoft.com/windowsserver2008/en/us/hyperv.aspx.
Table 1 identifies Hyper-V supported features that are configurable for NetXtreme II network adapters. This table is not an all-
inclusive list of Hyper-V features.
Table 1: Configurable Network Adapter Hyper-V Features
Feature
IPv4
IPv6
IPv4 Large Send Offload (LSO)
(parent and child partition)
IPv4 Checksum Offload (CO) (parent
and child partition)
IPv4 TCP Offload Engine (TOE)
IPv6 LSO (parent and child partition) No*
IPv6 CO (parent and child partition)
IPv6 TOE
iSCSI offload
Jumbo frames
RSS
NOTE: Ensure that Integrated Services, which is a component of Hyper-V, is installed in the guest operating system (child
partition) for full functionality.
NOTE: If you encounter problems while using VM Chimney, Broadcom recommends that VM Chimney be disabled due to
OS stability issues.

Single Network Adapter

Windows Server 2008

When configuring a NetXtreme II network adapter on a Hyper-V system, be aware of the following:
An adapter that is to be bound to a virtual network should not be configured for VLAN tagging through the driver's
advanced properties. Instead, Hyper-V should manage VLAN tagging exclusively.
Since Hyper-V does not support Jumbo Frames, it is recommended that this feature not be used or connectivity issues
may occur with the child partition.
The Locally Administered Address (LAA) set by Hyper-V takes precedence over the address set in the adapter's
advanced properties.
A TOE-enabled network adapter that is bound to a Hyper-V virtual network will report TOE as an offload capability in
BACS; however, TOE will not work. This is a limitation of Hyper-V. Hyper-V does not support TOE.
In an IPv6 network, a team that supports CO and/or LSO and is bound to a Hyper-V virtual network will report CO and
file:///T|/htdocs/NETWORK/BroadCom/71921/NetXtremeII/en/trouble.htm[9/26/2012 3:30:19 PM]
Supported in Windows
Server 2008
Yes
Yes
Yes
Yes
No*
No*
No*
No*
No*
No
Supported in Windows
Server 2008 R2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Comments/Limitation
–
–
–
–
*When bound to a virtual
network, OS limitation.
*When bound to a virtual
network, OS limitation.
*When bound to a virtual
network, OS limitation.
*When bound to a virtual
network, OS limitation.
*OS limitation.
*OS limitation.
OS limitation.