Administering Driver Parameters and Jumbo Frames
47
Related Information
■
“Set Driver Parameters (Linux)” on page 47
■
“Configure Jumbo Frames (Linux)” on page 50
▼
Set Driver Parameters (Linux)
●
Use the
ethtool
utility or the
configtool
utility to set parameters on a Linux
platform.
Related Information
■
“Driver Parameters (Linux)” on page 46
■
“Configure Jumbo Frames (Linux)” on page 50
RxIntDelay
0 to 65535
(0=off)
72
This value delays the generation of receive
interrupts in units of 0.8192 microseconds.
Receive interrupt reduction can improve CPU
efficiency if properly tuned for specific network
traffic. Increasing this value adds extra latency
to frame reception and can end up decreasing
the throughput of TCP traffic. If the system is
reporting dropped receives, this value might be
set too high, causing the driver to run out of
available receive descriptors.
TxDescriptors
80 to 4096
256
This value is the number of transmit descriptors
allocated by the driver. Increasing this value
allows the driver to queue more transmits. Each
descriptor is 16 bytes.
XsumRX
0 to 1
1
A value of 1 indicates that the driver should
enable IP checksum offload for received packets
(both UDP and TCP) to the Ethernet adapter
hardware.
Keyword
Valid Range
Default Value
Description
Summary of Contents for E25544-02
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