LAN setup can become complicated, partly because we must deal with physical LAN hardware and interfaces in the underlying Linux as well as System z interfaces. At the System z level, zPDT provides emulated OSA functions. OSA functions are closely tied to CHPID usage (on a large System z) and we must deal with CHPID-like details at the zPDT level.
LAN interfaces (other than tap interfaces) should be configured and tested on the base Linux system before attempting to use one or more interfaces for OSA Express emulation.
The Ethernet ...

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