H3C S2626-PWR 替换 TP-Link PoE 交换机导致监控离线故障排查记录
H3C S2626-PWR 替换 TP-Link PoE 交换机导致监控离线故障排查记录一、故障背景原网络环境:
路由器划分监控 VLAN 104
两台 TP-Link TL-SL1218MP PoE 交换机级联
海康录像机(NVR)
多个海康摄像头
网络拓扑:
1234567路由器 │TP-Link① │TP-Link②(故障) │海康录像机
由于其中一台 TP-Link TL-SL1218MP 损坏,更换为 H3C S2626-PWR。
更换后拓扑:
1234567路由器 │TP-Link① │H3C S2626-PWR │海康录像机
故障现象:
TP-Link 下挂摄像头正常;
H3C 下挂摄像头全部离线;
摄像头有 PoE 供电,但录像机无画面。
二、初步检查1. 检查 PoE 状态执行:
1display poe interface
发现:
12Eth1/0/9 ~ Eth1/0/24Status : delivering-power
说明:
PoE 正常;
摄像头已经成功供电。
2. 检查端口状态执行:
1disp ...
mongodb 服务无法启动错误处理
今日,修改 MongoDB ,运行外网访问,重启之后,发生如下错误。
1Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details.
通过 journalctl -xe ,详细错误如下:
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354● mongod.service - MongoDB Database Server Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; vendor preset: disabled) Active: failed (Result: ex ...
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