tcpkeepaliveprobes
tcpkeepaliveprobes refers to the number of TCP keepalive probes that may be sent on an idle connection before the connection is considered dead. TCP keepalive is a mechanism used to verify that a peer is still reachable when no data has been exchanged for some time.
When a connection becomes idle beyond the configured keepalive idle time, the network stack may send a
In Linux systems, the keepalive settings are exposed as sysctl values and per-socket options. The global defaults
Keepalive probes help detect stale connections in long-running or idle sessions but introduce additional network traffic