Advanced settings for HP NC-Series Broadcom 1
GbE adapters
These advanced properties are available for HP
NC-Series Broadcom 1 Gigabit Server Adapters running Windows Server
2003 and Windows Server 2003 x64. Each adapter property displays
only if the property is supported by the selected adapter.
802.1p QoS
Packet Tagging. Enables or disables IEEE 802.1p tagging to
send network traffic with different priority levels.
Default = Disabled
Range = Disabled; Enabled
Wake Up
Capabilities. Determines the type of packets that will
cause the adapter to wake up the system.
Default = Both
Range = None; Magic Packet; Wake Up Frame;
Both
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.
Auto. (Default) Auto detect flow
control
Disable. PAUSE frame receipt and
transmission is disabled
Tx PAUSE. PAUSE frame transmission is
enabled
Rx PAUSE. PAUSE frame receipt is
enabled
Rx/Tx PAUSE. PAUSE frame receipt and
transmission is enabled
Maximum Frame
Size. Specifies the maximum number of bytes in a single
packet. Larger frames can increase throughput and decrease CPU use
by putting more data in each packet, thereby sending out fewer
packets. This is equivalent to Jumbo Frames and must comply with
switch limitations.
Default = 1514
Range = 1324, 1514, 4088, and 9014
Tx IP Checksum
Offload. Offloads the task of computing the checksum for
outgoing IP packets, thereby improving performance.
Default = Enabled
Range = Disabled; Enabled
Rx IP Checksum
Offload. Offloads the task of computing the checksum for
incoming IP packets, thereby improving performance.
Default = Enabled
Range = Disabled; Enabled
Tx TCP Checksum
Offload. Offloads the task of computing the checksum for
outgoing TCP or UDP packets, thereby improving performance.
Default = Enabled
Range = Disabled; Enabled
Rx TCP Checksum
Offload. Offloads the task of computing the checksum for
incoming TCP or UDP packets, thereby improving performance.
Default = Enabled
Range = Disabled; Enabled
Large Send
Offload. Enables offloading of large TCP packets.
Default = Enabled
Range = Disabled; Enabled
WOL
Speed. Specifies the speed at which the adapter connects
to the network during Wake-on-LAN mode.
Default = Auto
Range = Auto; 10 Mb; 100 Mb
Ethernet@WireSpeed. Enables linking at 100
Mbps when using a cable that does not support Gigabit speed.
Default = Enabled
Range = Disabled; Enabled
Number of Tx
Descriptors. Determines how many resources are allocated
to transmit packets.
Default = 750
Range = 50-5000
Number of RX
Descriptors. Determines how many resources are allocated
to receive packets. Increasing receive descriptors can increase
performance, which also increases the amount of system memory used
by the driver. So, if too few receive descriptors are used,
performance suffers and if too many receive descriptors are used
the driver unnecessarily consumes memory resources.
