What does it mean when "tcp_orphan_retries" is set to 0?

Solution Verified - Updated -

Issue

  • What does it mean when tcp_orphan_retries is set to 0?
  • What's the behavior when tcp_orphan_retries is zero?
#cat /proc/sys/net/ipv4/tcp_orphan_retries
0

# sysctl net.ipv4.tcp_orphan_retries
net.ipv4.tcp_orphan_retries = 0

Environment

  • Red Hat Enterprise Linux
  • TCP

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