Oracle and Oracle RAC poor network performance - low throughput and high network latency

Solution Verified - Updated -

Issue

  • Oracle and Oracle RAC poor network performance, degrading Oracle performance
    • Low network throughput
    • High network latency

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Oracle 11g
  • Oracle 12c
  • Hardware with several numa nodes

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