Dell Brocade 825, Installation And Reference Manual

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Brocade Adapters Installation and Reference Manual 217
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Network driver parameters
A
Managing Linux driver configuration with ethtool
Following are examples of using the ethtool K commands to change adapter settings for driver
parameters:
•
TCP-UDP Checksum Offload
To enable or disable TCP-UDP checksum offload, enter the following command:
ethtool -K|--offload ethX [rx on|off] [tx on|off]
where:
ethx Adapter position in server. For example, eth0 is the first Ethernet interface
found in the system, eth1 is the second, eth2 is the third, and so on. Use
appropriate name for the adapter.
rx Receive
tx Transmit
•
TCP Segmentation Offload (TSO)
ethtool -K ethX tso [on|off]
where:
ethx Adapter position in server. For example, eth0 is the first Ethernet interface
found in the system, eth1 is the second, eth2 is the third, and so on.
tso TCP Segmentation Offload
•
Display current offload settings, enter the following command:
ethtool -k ethX
where:
ethx Adapter position in server. For example, eth0 is the first Ethernet interface
found in the system, eth1 is the second, eth2 is the third, and so on.
•
Interrupt Moderation
ethtool -C vmnicX adaptive-rx on|off
where:
ethx Adapter position in server. For example, eth0 is the first Ethernet interface
found in the system, eth1 is the second, eth2 is the third, and so on.
NOTE
For more information on using the ethtool command, refer to your Linux system documentation or
ethtool man pages.
•
Following is an example to enable or disable Ethernet pause.
ethtool -A ethx [autoneg on|off] [rx on|off] [tx on|off]
where:
ethx Adapter position in server. For example, eth0 is the first Ethernet interface
found in the system, eth1 is the second, eth2 is the third, and so on.
autoneg Autonegotiate on or off