Use the ping command to detect network layer protocols and hardware

Using the ping command to detect the network layer protocol and hardware ping command is a basic network test command, which supports echo protocol, echo protocol checks network connectivity by testing packets forwarded by routers. During the test at www.2cto.com, the ping command will send a packet to the target host, and then wait to receive the reply packet from the target host. When the target host receives the packet, it will send a reply packet to the source host, this test command helps the network manager to test whether the network to the target host is connected ., The ping Command works at the Layer 3-network layer of the OSI reference model.
You can use the ping command to test the network instance ping command in user mode and privileged mode. On the family router, type the ping it168 command. If the network layer is normally connected, as shown below, five exclamation points are displayed on the vro, indicating that the family router has successfully received five echo response packets from the it168 vro168. Family # ping 129.0.0.2Type escape sequence to abortsending 5, 100-byte ICMP Echos to 129.0.0.2, timeout is 2 seconds !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/28/32 msfamily # If the exclamation point here is (.) it indicates that the family router cannot be connected to IT168.