Master article: Network basic troubleshooting, testing and performance tuning

Solution In Progress - Updated -

Issue

  • How to do basic troubleshooting when a system is out of network ?
  • How to test network bandwidth? (iperf qperf netcat nc ttcp) ?
  • How to tune RHEL for better network performance ?
  • Packet drops seen in RHEL.
  • Network interface is flapping.

Environment

  • Red Hat Enterprise Linux (All versions)

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