Troubleshooting: Broadcom NetXtreme II® Network Adapter User Guide
file:///C|/Users/Nalina_N_S/Documents/NetXtremeII/English/trouble.htm[9/5/2014 3:45:23 PM]
Windows Server 2008 R2 and 2012
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
Supported in Windows
Server Version
Comments/Limitation
2008 2008 R2 2012
Smart Load Balancing and Failover (SLB)
team type
Yes Yes Yes
Multi-member SLB team allowed with latest
BASP6 version.
Note: VM MAC is not presented to external
switches.
Link Aggregation (IEEE 802.3ad LACP) team
type
Yes Yes Yes –
Generic Trunking (FEC/GEC) 802.3ad Draft
Static team type
Yes Yes Yes –
Failover Yes Yes Yes –
LiveLink Yes Yes Yes –
Large Send Offload (LSO) Limited* Yes Yes
*Conforms to miniport limitations outlines in
Table 1.
Checksum Offload (CO) Limited* Yes Yes
*Conforms to miniport limitations outlines in
Table 1.
TCP Offload Engine (TOE) No No No
Hyper-V VLAN over an adapter Yes Yes Yes –
Hyper-V VLAN over a teamed adapter Yes Yes Yes –
Hyper-V VLAN over a VLAN Limited* Limited* Limited* Only an untagged VLAN.
Hyper-V virtual switch over an adapter Yes Yes Yes –
Hyper-V virtual switch over a teamed
adapter
Yes Yes Yes –
Hyper-V virtual switch over a VLAN Yes Yes Yes –
iSCSI boot No No* No* *Remote boot to SAN is supported.
Virtual Machine Queue (VMQ) No Yes Yes See Configuring VMQ with SLB Teaming.
RSC No No Yes
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.
Create a team only with an adapter that is not already assigned to a Hyper-V virtual network.
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