User`s guide

14 007-5515-002

3: Operating the Gigabit Ethernet Card

For more information on ifconfig, see the ifconfig(8) man page.

Conﬁguration Parameters

Conﬁguration changes for Ethernet devices drivers are made by means of the

ethtool(8) command. The ethtool command works with all Linux Ethernet drivers.

In general, each feature has a query and a modify variant. If you are wondering

whether the current driver and ethtool support a speciﬁc feature, attempt to run the

query option ﬁrst, an example is, as follows:

# ethtool -a eth2

Pause parameters for eth2:

Autonegotiate: on

RX: on

TX: on

This shows the current settings of the pause (or ﬂow control) parameters. You can then

change these parameters with the ethtool -A option.

As with any system conﬁguration changes, make sure to have a back out strategy, read

the most recent documentation for potential changes and pitfalls, and consult with a

relevant Linux archives for examples of common usage.