https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238741
--- Comment #1 from ad...@salesmanager.nl --- I think the problem might be related to the selected TCP Congestion Control algorithm. If I select Cdg as the TCP Congestion Control algorithm: # kldload cc_cdg # sysctl net.inet.tcp.cc.algorithm=cdg Tcp connections will sometimes hang and finally timeout. When this happens, the socket Send-Q is not empty and will never drain, so some or all data is never sent. # netstat -6n Active Internet connections Proto Recv-Q Send-Q Local Address Foreign Address (state) tcp6 0 383 2a02:xxxx:yyy:18.56748 2a04:4e42:9::729.443 ESTABLISHED The same happens with IPv4 and IPv6 connections. If I change the TCP Congestion Control to any other algorithm, the problem doesn't exist anymore. I did a quick test with NewReno, Cubic, HTcp and Chd as the selected TCP Congestion Control algorithm and all work. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
