EBDOXPIN

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This is one used to test network connectivity. It uses the ICMP protocol to request a response from the destination. It can be used to test network connectivity, network latency, etc., and is usually used as a usability check. It walks at the network layer, so the failure of ping is independent of the port. Using the uniqueness of the Internet Protocol Address of the machine on the network, send a data packet to the target Internet Protocol Address, and then ask the other party to return a data packet of the same size to determine whether the two network machines are connected and communicate, and what is the delay.