LCS interface names

SUSE Linux Enterprise Server 15 SP5 LPAR mode z/VM guest

When an LCS group device is set online, the LCS device driver automatically assigns an Ethernet interface name to it.

The naming scheme uses the base name eth<n>, where <n> is an integer that uniquely identifies the device. When the first device for a base name is set online it is assigned 0, the second is assigned 1, the third 2, and so on. For example, the interface name of the first Ethernet feature that is set online is eth0, and the second eth1.

The LCS device driver shares the name space for Ethernet interfaces with other network device drivers. Each driver uses the name with the lowest free identifier <n>, regardless of which device driver occupies the other names. For example, if at the time the first LCS Ethernet feature is set online, there is already one qeth Ethernet feature online, the qeth feature is named eth0 and the LCS feature is named eth1.