Red Hat ENTREPRISE LINUX 5 Installation Manual page 262

Chapter 22. Additional Information for IBM System z Users
# cat ­/sys/bus/ccwgroup/drivers/qeth/0.0.0600/online
1
A return value of "1" indicates that the device is online, while a return value '0' indicates that the device
is offline.
Check to see what interface name was assigned to the device:
# cat ­/sys/bus/ccwgroup/drivers/qeth/0.0.0600/if_name
eth1
You may optionally set additional parameters and features, depending on the way you are setting up
your system and the features you require.
• add_hhlen
• broadcast_mode
• buffer_count
• canonical_macaddr
• checksumming
• detach_state
• fake_broadcast
• fake_ll
• ipa_takeover
• portno
• priority_queueing
• recover
• route4
• rxip
• ungroup
• vipa
http://www-128.ibm.com/developerworks/
For information on how these features work, refer to
linux/linux390/october2005_documentation.html#3 (Device Drivers, Features, and Commands -
SC33-8289-02).
Now you need to create the configuration file for your new interface. The network interface
configuration files are placed in /etc/sysconfig/network-scripts/.
The network configuration files use the naming convention ifcfg-device, where device is the value
found in the if_name file in the qeth group device that was created earlier. In this example it is eth1.
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