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openvpn packet dropped due to output saturation

2012年4月24日 eric 发表评论 阅读评论

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,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:

      tcp-queue-limit 256
      
       此值默认值得 是 64.

     修改后,到目前为止还没有 出现此类 日志。

     错如日志如下
    
Thu Apr 19 10:24:21 2012 us=990633 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=10442 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=33052 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=53103 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=74694 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=96750 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
Thu Apr 19 10:24:22 2012 us=116239 test/124.126.161.35:51027 MULTI: packet dropped due to output saturation (multi_process_incoming_tun)
    

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