Allied Telesis AT-2973T User Manual

Page of 176
Chapter 11: Troubleshooting
148
When configuring a team of NetXtreme II 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. 
A TOE-enabled team that is bound to a Hyper-V virtual network 
reports TOE as an offload capability in BACS; however, TOE does not 
work. This is a limitation of Hyper-V because this system does not 
support TOE. 
In an IPv6 network, a team that supports Checksum Offload (CO) and 
Large Send Offload (LSO) and is bound to a Hyper-V virtual network 
reports CO and LSO as an offload capability in BACS. Also, in an IPv6 
network, a team that supports CO or LSO and is bound to a Hyper-V 
virtual network reports CO or LSO as an offload capability in BACS. 
However, in both instances CO and LSO do not work. This is a 
limitation of Hyper-V because this system does not support CO and 
LSO in an IPv6 network.
To successfully perform VLAN tagging for both the host (parent 
partition) and the guest (child partition) with the BASP teaming 
software, you must configure the team for tagging. Unlike VLAN 
tagging with a single adapter, tagging cannot be managed by Hyper-V 
when using BASP software.
Removing the
Device Drivers
Uninstall the Broadcom NetXtreme II device drivers from your system only 
through the InstallShield wizard. Uninstalling the device drivers with 
Device Manager or any other means may not provide a clean uninstall 
which, in turn, may cause the system to become unstable. For information 
on uninstalling Broadcom NetXtreme II device drivers, see “Removing the 
Device Drivers” on page 97.
Upgrading from
Windows Server
2000 to Windows
Server 2003
When a Broadcom NetXtreme II adapter is installed in your system, Allied 
Telesis recommends that you uninstall the adapter's driver before 
performing an OS upgrade from the Windows Server 2000 Operating 
System to the Windows Server 2003 Operating System. This ensures that 
no errors are encountered in the installation of the Windows Server 2003 
drivers for the NetXtreme II adapters. There are individual device drivers 
for Windows Server 2000 and Windows Server 2003. As a result, you 
must install the Windows Server 2003 drivers after the OS upgrade is 
completed. 
Preparing an
Answer File
When creating an answer file for an unattended installation or for the 
System Preparation Tool (Sysprep) utility, the following lines must be 
included under the [Unattend] section: 
OemPreinstall=Yes
OemPnpDriversPath=Drivers\NIC