# 网络异常

+ TiKV-Details --> Errors --> Server report failures
![center](./student-guide/diagram/place-holder.png)

+ Grafana -> blackbox_exporter -> ping latency
![center](./student-guide/diagram/place-holder.png)

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- TiKV-Details --> Errors --> Server report failures
通过该监控项，能够看到各个 Store 间是否出现了 unreachable 现象

- Grafana -> blackbox_exporter -> ping latency
通过该监控项，可以确定各个 Store 间的网络通讯是否正常