HP 441877-00F - Manual (Page 48)

Configuration and diagnostics 48
• Number of Receive Descriptors. Specifies the number of buffers used by the driver when copying
data to the protocol memory. In high network load situations, increasing receive descriptors can
increase performance. The tradeoff is that this also increases the amount of system memory used by
the driver. If too few receive buffers are used, performance suffers. If too many receive buffers are
used, the driver unnecessarily consumes memory resources.
o Default
NC110x, NC310F, NC340x, NC360x, NC364x, NC6170, and NC7170 = 256
All others = 160
o Range
NC6132 and NC6134 = 80–768 (increments of 8)
NC6136, NC7131, and NC7132 = 80–256 (increments of 8)
NC310F, NC340x, NC6170, and NC7170 = 80–4096 (increments of 8)
NC110x, NC360x, and NC364x = 80-2048 (increments of 8)
• Number of Transmit Descriptors. Specifies the number of resources allocated to transmit packets.
o Default = 256
o Range
NC6132 and NC6134 = 80–768 (increments of 8)
NC6136, NC7131, and NC7132 = 80–256 (increments of 8)
NC310F, NC340x, NC6170, and NC7170 = 80–4096 (increments of 8)
NC110x, NC360x, and NC364x = 80-2048 (increments of 8)
• Offload Receive TCP Checksum. Offloads the task of computing the checksum for incoming TCP or
UDP packets, thereby improving performance.
o Default = On
o Range = Off; On
• Offload Transmit TCP Checksum. Offloads the task of computing the checksum for outgoing TCP or
UDP packets, thereby improving performance.
o Default = On
o Range = Off; On
• Offload Transmit IP Checksum. This property does not apply to the NC6132 or NC6134 adapters.
Offloads the task of computing the checksum for outgoing IP packets, thereby improving
performance.
o Default = On
o Range = Off; On
• Offload Receive IP Checksum. (NC110x, NC310F, NC340x, NC360x, NC364x, NC6170, and
NC7170 only). Offloads the task of computing the checksum for incoming IP packets, thereby
improving performance.
o Default = On (NC110, NC360x, NC364x = Off)
o Range = Off; On
• Enable PME (NC110x, NC310F, NC340x, NC360x, NC364x, NC6170, and NC7170 only).
Allows the use of power management and wake-up functions.
o Default = No Action (NC110x, NC360x, NC364x = OS Controlled)