60 Linux for IBM System z9 and IBM zSeries
4.1 Networking options
The networking options available to Linux on zSeries can be split broadly into
two categories: physical hardware and virtualization technology.
Physical
hardware
, as the term suggests, covers physical network interfaces, or in the
case of HiperSockets, a networking implementation that requires zSeries
hardware.
Virtualization technology covers the networking options available to
those users who run Linux in a z/VM environment.
The z/VM operating system can use any of the physical networking options.
Linux systems running as virtual machines in a z/VM environment have the
choice of using any of the physical options, any of the virtualization technology
options, or a combination ...