good point, did you see this also ? https://pracucci.com/linux-tcp-rto-min-max-and-tcp-retries2.html re, wh ________________________________________ Von: Jakub Wilk <jwilk@xxxxxxxxx> Gesendet: Mittwoch, 27. Januar 2021 18:57:03 An: linux-man@xxxxxxxxxxxxxxx Betreff: tcp.7: tcp_retries2 description outdated? The description of tcp_retries2 in tcp.7 reads: >The default value is 15, which corresponds to a duration of >approximately between 13 to 30 minutes, depending on the retransmission >timeout. I'm not a networking expert, but I think this description is outdated. See these kernel commits: https://git.kernel.org/linus/6fa12c85031485df https://git.kernel.org/linus/5d7892298a819743 -- Jakub Wilk