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openvpn packet dropped due to output saturation

OpenVPN admin 3014浏览 2评论

openvpn 组建复杂的网络环境有段时间了,由于总出口都是从一台VPN 发送和接收,有时候会发现不稳定的情况,查看openvpn 日志 发现有时候会发现大量的 packet dropped 日志。很多包都呗 drop 掉了,

Sun Jan  4 09:33:12 2015 us=353715 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353732 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353748 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353774 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353792 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353809 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353825 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Sun Jan  4 09:33:12 2015 us=353841 aikaiyuan/192.168.1.2:51433 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)

由于我用的不是默认的 UDP 协议,用的是 TCP 协议。

解决办法添加参数:

cat /etc/openvpn/server.conf  | grep tcp-queue
tcp-queue-limit 512

转载请注明:爱开源 » openvpn packet dropped due to output saturation

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