RT-MSR3620路由器运行3个月出现死机导致对外通道断开是什么原因？

麻烦大家指导下，哪里原因，怎么排查，路由器重启就回复了

收集诊断用什么命令，诊断怎么导出

收集的日志 display logbuffer Log buffer: Enabled Max buffer size: 1024 Actual buffer size: 512 Dropped messages: 0 Overwritten messages: 0 Current messages: 81 %Feb 21 10:44:57:743 2023 ZJHZ-WANTOU.R3 SYSLOG/6/SYSLOG_RESTART: System restarted -- H3C Comware Software. %Feb 21 10:46:00:675 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Aux0 changed to up. %Feb 21 10:48:10:392 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to up. %Feb 21 10:48:10:393 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to up. %Feb 21 10:48:10:407 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to up. %Feb 21 10:48:13:505 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to up. %Feb 21 18:45:27:120 2023 ZJHZ-WANTOU.R3 LOGIN/5/LOGIN_FAILED: TTY failed to log in from aux0. %Feb 21 18:45:40:243 2023 ZJHZ-WANTOU.R3 SHELL/5/SHELL_LOGIN: admin logged in from aux0. %Feb 21 18:47:03:948 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis logbu %Feb 21 18:47:52:461 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis logbuffer reverse %Feb 21 18:49:17:407 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command free -h in view shell failed to be matched. %Feb 21 18:51:00:254 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display ip routing-table %Feb 21 18:51:59:002 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis vlan %Feb 21 18:53:02:468 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command display lock in view shell failed to be matched. %Feb 21 18:53:17:909 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display cpu %Feb 21 18:56:23:406 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display current-configuration %Feb 21 18:57:11:081 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display ip routing-table %Feb 21 18:59:15:613 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis cpu %Feb 21 18:59:33:830 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis memory %Feb 21 18:59:50:141 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis power %Feb 21 19:00:15:747 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis device %Feb 21 19:00:40:304 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis fan %Feb 21 19:00:53:373 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis env %Feb 21 19:01:13:573 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis version %Feb 21 19:02:05:862 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis int brief %Feb 21 19:02:51:062 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command dis tean dia int in view shell failed to be matched. %Feb 21 19:03:16:085 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis link ver %Feb 21 19:03:32:696 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis cu %Feb 21 19:04:01:439 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis log re %Feb 21 19:04:43:697 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis boot-loader %Feb 21 19:05:23:971 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command dis pim routeing-tabie in view shell failed to be matched. %Feb 21 19:05:48:905 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is dis pim rp-info %Feb 21 19:11:21:874 2023 ZJHZ-WANTOU.R3 SHELL/5/SHELL_LOGOUT: admin logged out from aux0. %Mar 13 11:35:27:496 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/1: The channel is deactivated because of too many continuous input errors. This problem might be caused by poor signals or improper channel configuration. %Mar 13 11:35:30:390 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/1: The channel is activated. %Mar 13 11:35:30:394 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to down. %Mar 13 11:35:30:394 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to down. %Mar 13 11:35:30:559 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/0: The channel is deactivated because of too many continuous input errors. This problem might be caused by poor signals or improper channel configuration. %Mar 13 11:35:35:390 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/0: The channel is activated. %Mar 13 11:35:35:394 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to down. %Mar 13 11:35:35:394 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to down. %Mar 13 11:35:45:391 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to up. %Mar 13 11:35:45:412 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to up. %Mar 13 11:35:51:135 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/1: The channel is deactivated because of too many continuous input errors. This problem might be caused by poor signals or improper channel configuration. %Mar 13 11:35:55:390 2023 ZJHZ-WANTOU.R3 DRVMSG/1/DRVMSG: Serial5/1: The channel is activated. %Mar 13 11:35:55:394 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to down. %Mar 13 11:35:55:394 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to down. %Mar 13 11:36:15:392 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to up. %Mar 13 11:36:15:393 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to up. %Mar 13 11:36:15:405 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to up. %Mar 13 11:36:18:511 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to up. %Mar 13 11:36:20:392 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to down. %Mar 13 11:36:20:392 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to down. %Mar 13 11:36:25:391 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to up. %Mar 13 11:36:25:426 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to up. %Mar 17 13:58:35:395 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to down. %Mar 17 13:58:35:395 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to down. %Mar 17 13:58:35:395 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to down. %Mar 17 13:58:35:424 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to down. %Mar 17 13:58:40:392 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to up. %Mar 17 13:58:40:393 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to up. %Mar 17 13:58:40:405 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to up. %Mar 17 13:58:40:410 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to up. %Apr 1 01:05:35:395 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/0 changed to down. %Apr 1 01:05:35:395 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to down. %Apr 1 01:05:35:395 2023 ZJHZ-WANTOU.R3 IFNET/5/LINK_UPDOWN: Line protocol state on the interface Serial5/1 changed to down. %Apr 1 01:05:35:423 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to down. %Apr 1 01:05:40:392 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/0 changed to up. %Apr 1 01:05:40:393 2023 ZJHZ-WANTOU.R3 IFNET/3/PHY_UPDOWN: Physical state on the interface Serial5/1 changed to up. %Apr 1 12:00:02:879 2023 ZJHZ-WANTOU.R3 LOGIN/5/LOGIN_FAILED: TTY failed to log in from aux0. %Apr 1 12:00:22:683 2023 ZJHZ-WANTOU.R3 SHELL/5/SHELL_LOGIN: admin logged in from aux0. %Apr 1 12:00:52:990 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display version %Apr 1 12:01:38:670 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display clock %Apr 1 12:02:13:327 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command display enviroment in view shell failed to be matched. %Apr 1 12:02:47:649 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display device %Apr 1 12:03:12:355 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display power %Apr 1 12:03:33:270 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display fan %Apr 1 12:03:56:587 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display cpu-usage %Apr 1 12:04:20:868 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display cpu history %Apr 1 12:04:53:393 2023 ZJHZ-WANTOU.R3 SHELL/4/SHELL_CMD_MATCHFAIL: -User=admin-IPAddr=**; Command display cpu-usage task in view shell failed to be matched. %Apr 1 12:05:20:106 2023 ZJHZ-WANTOU.R3 SHELL/6/SHELL_CMD: -Line=aux0-IPAddr=**-User=admin; Command is display memory