Allied Telesis AT-2973T/4, AT-2973SX manual Solving Microsoft Windows Server 2008 R2 Hyper-V Issues

AT-2973SX, AT-2973T, and AT-2973T/4 NetExtreme II Family Adapters Installation and User’s Guide

Solving Microsoft Windows Server 2008 R2 Hyper-V Issues

Single Network Adapter

Teamed Network Adapters

Microsoft Windows Server 2008 R2 Hyper-V™ is a hypervisor virtualization system. For detailed information about Hyper-V, see http:// www.microsoft.com/windowsserver2008/en/us/hyperv.aspx.

This section addresses issues that affect the configuration of NetXtreme II network adapters and teamed adapters when Hyper-V is used.

Note

Ensure that Integrated Services, which is a component of Hyper-V, is installed in the guest operating system (child partition) for full functionality.

When configuring a NetXtreme II network adapter for Hyper-V, be aware of the following:

An adapter that is 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 an address set in the adapter's Advanced Properties.

A TOE-enabled network adapter 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.

The following Broadcom team types are supported with Hyper-V:

Smart Load Balancing and Failover (configured only for one primary and one standby)

Link Aggregation (IEEE 802.3ad LACP)

Generic Trunking (FEC/GEC) 802.3ad Draft Static

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