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6–Configuring NIC Functionality in the Converged Network Adapter
Configuring the NIC in a Windows Environment
FE0254601-00 A 6-5
Table 6-1. NIC Driver Parameters for Windows
Parameter
Name
Function
Default
Value
Range Method to Configure
CheckSumOf-
floadSupport
Bucket to enable, disable all
IP, TCP, UDP checksum
offload driver capabilities
Enable Disable
Enable
Windows Property
Pages for QLogic
adapter, navigate to
Advanced tab or
QConvergeConsole CLI
FlowControl Enable or disable Flow
Control. Flow Control
enables adapters to gener-
ate or respond to flow con-
trol frames, which help
regulate network traffic
Rx Enable
Tx Enable
Disable
Rx Enable
Tx Enable
Windows Property
Pages for QLogic
adapter, navigate to
Advanced tab
HeaderdataSplit Enable or disable Header
Data Split (HDS). HDS
splits the header informa-
tion from an incoming
packet so that the CPU
does not have to process
the whole packet, thus
reducing CPU use. Win-
dows Server 2008 only.
Disable Enable
Disable
Windows Property
Pages for QLogic
adapter, navigate to
Advanced tab or
QConvergeConsole CLI
IPChecksumOffl
oadIPv4
IPv4 Checksum Offload
verifies the TCP/IP check-
sum on received packets
(Rx) and computes the
checksum on transmitted
packets (Tx). Enabling this
parameter can improve
TCP/IP performance and
reduce CPU use. With
Offloading disabled, the
operating system calculates
and verifies the TCP/IP
checksum.
Rx Enable
Tx Enable
Disable
Rx Enabled
Tx Enabled
Rx and Tx
Enable
Windows Property
Pages for QLogic
adapter, navigate to
Advanced tab or
QConvergeConsole CLI