openwrt 莫名其妙的断网又瞬间恢复链接，求分析下日志

[tyhunter]

就是QQ掉线后又瞬间恢复重连，但路由器上的PPPoE连接并没有断开

Fri Jun 19 18:24:06 2015 kern.err /usr/bin/ss-redir[2916]: server recv: Connection reset by peer
Fri Jun 19 18:25:57 2015 user.info autossh[1378]: starting ssh (count 20)
Fri Jun 19 18:25:57 2015 user.info autossh[1378]: ssh child pid is 5822
Fri Jun 19 18:25:57 2015 user.info autossh[1378]: ssh exited with error status 1; restarting ssh
Fri Jun 19 18:29:27 2015 daemon.info hostapd: wlan0: STA 14:99:e2:83:53:2c WPA: group key handshake completed (RSN)
Fri Jun 19 18:29:28 2015 daemon.info hostapd: wlan0: STA 74:81:14:a2:20:73 WPA: group key handshake completed (RSN)
Fri Jun 19 18:32:58 2015 kern.info kernel: [ 2047.580000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
Fri Jun 19 18:33:00 2015 kern.info kernel: [ 2049.920000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
Fri Jun 19 18:33:02 2015 daemon.info dnsmasq-dhcp[2176]: DHCPREQUEST(br-lan) 192.168.1.177 b8:88:e3:a3:08:35
Fri Jun 19 18:33:02 2015 daemon.info dnsmasq-dhcp[2176]: DHCPACK(br-lan) 192.168.1.177 b8:88:e3:a3:08:35 Titan
Fri Jun 19 18:33:05 2015 kern.err /usr/bin/ss-redir[2916]: server recv: Connection reset by peer
Fri Jun 19 18:33:08 2015 kern.err /usr/bin/ss-redir[2916]: server recv: Connection reset by peer

问题应该出现在这段日志里，但实在看不懂日志，求高手分析下问题原因

PS:内核日志如下

71.610000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 74.000000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 544.160000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 546.490000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 869.690000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 872.010000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 953.700000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 956.260000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 1011.160000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 1013.510000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 1202.760000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 1205.360000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 1292.540000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 1294.510000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 2047.580000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 2049.920000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 2097.270000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 2099.300000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)
[ 2367.790000] ralink_soc_eth 10100000.ethernet eth0: port 1 link down
[ 2370.140000] ralink_soc_eth 10100000.ethernet eth0: port 1 link up (100Mbps/Full duplex)

[zro]

换个端口看看？

[datocp]

从日志上看不出有什么特别的。不大考虑全局方式翻，被tcp reset的机率太高了。也许只有这个原因吧。

Fri Jun 19 18:33:08 2015 kern.err /usr/bin/ss-redir[2916]: server recv: Connection reset by peer

其它的如果是多人网络，可能是因为没有做端口优先级而因为网络拥塞而导致的掉线。

[tyhunter]

@datocp 无线只有一台手机和一台pad ，以前也是这样连接的没出过问题，我去看看是不是有人在蹭网

[tyhunter]

@datocp 刚看了下后台DHCP分配，并没有发现蹭网的存在，路由器上跑的是ChinaDNS+SS，做了国内外分流，但我在想这跟DNS解析应该没多大关系，因为QQ一向是直接连接IP的，以前折腾SS时也没见QQ断开过，所以也搞不太清楚是什么原因

[zro]

那你把SS停一下看看，土啬好像升级了，能识别出SS的特征

[tyhunter]

@zro 卧槽蔷有加高了，不过我刚重新拔插了下网线口，还是继续断的话再来停SS试试（总感觉是猫早上玩路由器把网线给玩松了

[neroanelli]

日志里不停的出现link up/down，首先要做的就是检查网线接口。