HP ProLiant Network Adapter Software and Configuration Guide

Configuration and diagnostics 9
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Range = 1-4094
• TCP Offload Engine (TOE). Enables the offloading of TCP connections to HP Multifunction Server
Adapters. SNP is required to enable TOE and RSS.
o Default = Enabled
o Range = Disabled; Enabled
TOE will not work with the following features enabled: Windows Firewall; Internet Protocol security
(IPsec); Internet Protocol Network Address Translation (IPNAT); third-party firewalls; and NDIS 5.1
intermediate drivers. Download article number KB912222
(http://support.microsoft.com/kb/912222/en-us) from the Microsoft website for more information.
• Receive-Side Scaling (RSS). Enables dynamic load balancing of incoming traffic across CPUs. Microsoft
Scalable Networking Pack (SNP) is required when enabling TOE and RSS.
o Default = Enabled
o Range = Disabled; Enabled
HP NC-Series Intel Adapters
The following information describes the adapter properties, firmware, and diagnostics available for HP
NC-Series Intel adapters through your operating system. Each adapter property displays only if the property
is supported by the selected adapter.
See the HP Network Configuration Utility online help for the properties available through the NCU.
See the Linux readme files for the properties available through the various Linux operating systems.
HP NC-Series Intel adapter properties for Windows Server 2008
and Windows Server 2008 x64
• Adaptive Interframe Spacing. Compensates for excessive Ethernet packet collisions on the network. The
default setting works best for most computers and networks by dynamically adapting to the network
traffic conditions. However, in some rare cases, you may obtain better performance by manually setting
the spacing value. Setting a value forces a static gap between packets. Increasing the value increases
the delay between frames being transmitted.
o Default = Disabled
o Range = Disabled; Enabled
• Enable PME. Allows the use of power management and wake-up functions. Supported on NC364x
adapter only.
o Default for NC364x adapter = OS Controlled
o Range for NC364x adapter = OS Controlled; Disabled; Enabled
• Flow Control. The Flow Control property allows the user to enable or disable the receipt or transmission
of PAUSE frames. PAUSE frames enable the adapter and the switch to control the transmit rate. The side
that is receiving the PAUSE frame will momentarily stop transmitting. The recommended selection is
Auto and it is the default setting. To disable Flow Control, select Disable from the Value list on the
Advanced tab.
o Disable. PAUSE frame receipt and transmission is disabled
o Tx Enable. PAUSE frame transmission is enabled