Users Guide

14 Supported Hardware and Software Settings
Stateless Offload (LSO and CSO)
The adapters provide the LSO and CSO capabilities if both the network
adapters and drivers support them. If the network adapters or the drivers do
not support these features, then these capabilities are still available, but
performed by the operating system. It is recommended to use adapters with
LSO and CSO capabilities as some overhead is incurred when the operating
system provides these capabilities.
NOTE: The latest Dell-supported network adapters offer LSO and CSO hardware
offload support. Hyper-V does not support CSO and LSO in an IPv6 network. In an
IPv6 network, a team that supports CSO and/or LSO, and is bound to a Hyper-V
virtual network, reports CSO and LSO as an offload capability in Broadcom
Advanced Control Suite (BACS), even when CSO and LSO do not work. This is a
limitation of Hyper-V.
VLAN Tagging
VLAN tagging (IEEE 802.1Q) of Hyper-V is supported. It allows both parent
partition and VMs to logically separate their network connections. VMs may
have more than one virtual adapter, and each virtual adapter may belong to
any VLAN.
Supported Physical Network Adapter Settings
Table 3-1 summarizes the physical network adapter features supported by
Hyper-V when connected to a virtual network.
NOTE: Network adapters not connected to virtual networks may be used for
advanced features offered by third-party software from Intel and Broadcom.
However, you must not use this software to manage or configure physical
network adapters connected to virtual networks.