Dell Emulex Family of Adapters User Manual

Page 594

Emulex Drivers for Windows User Manual

P010077-01A Rev. A

3. Configuration

NIC Driver Configuration

594

Large Send Offload
v1 (IPv4)

Disabled
Enabled (default)

Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2

Large Send Offload allows the NIC
hardware to segment large TCP
packets (up to 64kB) into smaller
packets (<= “Packet Size”) that
may be transmitted. This
segmentation increases transmit
efficiency for TCP applications
that send large buffers. During
segmentation, the hardware
computes the IPv4 and TCP
checksums for each individual
packet.
The Windows Version 1 LSO
supports only IPv4.

Large Send Offload
v2 (IPv4)

Disabled
Enabled (default)

Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2

Large Send Offload
v2 (IPv6)

Disabled
Enabled (default)

Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2

Large Send Offload allows the NIC
hardware to segment large TCP
packets (up to 64kB) into smaller
packets (less than the MTU) that
may be transmitted. This
segmentation increases transmit
efficiency for TCP applications
that send large buffers. During
segmentation, the hardware
computes the TCP checksums for
each individual packet.
IPv6 support requires LSO Version
2, included in Windows Server
2008 and later.

Maximum Number
of RSS Processors

Min: 0
Max: The number CPU cores
installed on your system.

Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2

This property sets the maximum
number of processors that can be
used for RSS.

Table 3-3 Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, and Windows Server 2012 R2 NIC
Driver Options (Continued)

Option Name

Acceptable Values

Supported Operating
Systems

Definition