How to check the switching delay of intranet ping?

Either the network cable is in contact, or the hardware equipment is aging, or there may be a network loop in the local area network.

1. The network loop is troublesome and can only be checked by plugging and unplugging each network cable.

2. Pay more attention to the indicator light of the switch port at ordinary times. If the indicator light flashes wildly, pay attention to the analysis.

3. You can install the "Network Health Detection Plug-in" in WFilter, and occasionally you can detect it if there is a loop under operation.