TCP: keep-alive 实例
迪丽瓦拉
2024-03-30 00:18:54
0次
文章目录
- 参考
- 只有socket的keep-alive
- 相关参数
- 与其他ACK的区别？
- wireshark 实例
参考
https://mzhan017.blog.csdn.net/article/details/107826490#Keep_alive_179
https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c03474784
https://stackoverflow.com/questions/24428598/how-to-verify-tcp-keep-alive-on-linux
只有socket的keep-alive
只有socket的keep-alive选项打开时，kernel才会做keep alive的操作。是kernel里TCP的一个机制。
相关参数
/proc/sys/net/ipv4
tcp_keepalive_time = 7200 (seconds)
tcp_keepalive_intvl = 75 (seconds)
tcp_keepalive_probes = 9 (number of probes)
TCP keepalive process waits for two hours (7200 secs) for socket activity before sending
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