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11.2.3. Required ifcfg Options for Linux on System z

where answer is one of the following:
  • ctc — Channel-to-Channel communication. For point-to-point TCP/IP or TTY.
  • lcs — LAN Channel Station (LCS).
  • qeth — QETH (QDIO Ethernet). This is the default network interface. It is the preferred installation method for supporting real or virtual OSA cards and HiperSockets devices.