qeth interface names and device directories
Red Hat® Enterprise Linux® automatically assigns interfaces to the qeth group devices. The qeth device driver creates the corresponding sysfs structures.
An interface is represented in sysfs as:
/sys/class/net/<interface>
The mapping between interfaces and the device bus-ID that represents the qeth group device in sysfs is preserved when a device is set offline and back online.
Note: The interface is represented in sysfs even if the device is offline.