Windows Server 2008 R2; Teamed Network Adapters - Dell Broadcom NetXtreme Family of Adapters User Manual

Troubleshooting: Broadcom NetXtreme II Network Adapter User Guide
LSO as an offload capability in BACS; however, CO and LSO will not work. This is a limitation of Hyper-V. Hyper-V does
not support CO and LSO in an IPv6 network.

Windows Server 2008 R2

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.
The Locally Administered Address (LAA) set by Hyper-V takes precedence over the address set in the adapter's
advanced properties.
The LSO and CO features in the guest OS are independent of the network adapter properties.
To allow jumbo frame functionality from the guest OS, both the network adapter and the virtual adapter must have
jumbo frames enabled. The Jumbo MTU property for the network adapter must be set to allow traffic of large MTU from
within the guest OS. The jumbo packet of the virtual adapter must be set in order to segment the sent and received
packets.

Teamed Network Adapters

Table 2 identifies Hyper-V supported features that are configurable for NetXtreme II teamed network adapters. This table is
not an all-inclusive list of Hyper-V features.
Table 2: Configurable Teamed Network Adapter Hyper-V Features
Feature
Smart Load Balancing and Failover
(SLB) team type
Link Aggregation (IEEE 802.3ad
LACP) team type
Generic Trunking (FEC/GEC)
802.3ad Draft Static team type
Failover
LiveLink
Large Send Offload (LSO)
Checksum Offload (CO)
TCP Offload Engine (TOE)
Hyper-V VLAN over an adapter
Hyper-V VLAN over a teamed
adapter
Hyper-V VLAN over a VLAN
Hyper-V virtual switch over an
adapter
Hyper-V virtual switch over a
teamed adapter
Hyper-V virtual switch over a VLAN Yes
iSCSI boot
Windows Server 2008
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.
file:///T|/htdocs/NETWORK/BroadCom/71921/NetXtremeII/en/trouble.htm[9/26/2012 3:30:19 PM]
Supported in
Supported in Windows
Windows Server
Server 2008 R2
2008
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Limited* Yes
Limited* Yes
Limited* Yes
Yes Yes
Yes Yes
Limited* Limited*
Yes Yes
Yes Yes
Yes
No No*
Comments/Limitation
Multi-member SLB team allowed
with latest BASP6 version.
Note: VM MAC is not presented to
external switches.
–
–
–
–
*Conforms to miniport limitations
outlines in Table 1.
*Conforms to miniport limitations
outlines in Table 1.
*Conforms to miniport limitations
outlines in Table 1.
–
–
Only an untagged VLAN.
–
–
–
*Remote boot to SAN is supported.