If you are a network maintenance person, you will have to handle network failures frequently, understand and master the following commands will help you detect the network failure faster, saving time and improving efficiency. Ping ping is a tool for testing network coupling conditions and packet sends and reception conditions, which is the most commonly used command for network testing. Ping Sends a return request packet to the target host (address), requiring the target host to respond to the request, thus determining the response time of the network and the local Unicom communication with the target host (address). If you do not succeed, you can predict that the fault appears in the following aspects: the network cable fault, the network adapter configuration is incorrect, the IP address is incorrect. If the network is still unusable, the network is still unusable, then the problem is likely to have a software configuration in the network system, and the success can only ensure that there is a connection between the unit and the target host. Command format: Ping IP address or hostname [-t] [-a] [-n count] [-l size] parameter meanings: -t constantly transmitting data to the target host; -A Displays the target in IP address format The network address of the host; -n count Specifies how many times to Ping, the specific number is specified by count; -l size specifies the size of the packet sent to the target host. For example, when your machine cannot access the Internet, first you want to confirm whether it is a local local area network failure. Assume that the proxy server IP address of the LAN is 202.168.0.1, you can use ping to avoid the 202.168.0.1 command to see if the unit is connected to the proxy server. As another example, the common command to test if the NIC installed correctly is ping 127.0.0.1. Use the Tracert Tracert command to display the packet to the path passed by the target host and display the time to each node. The command function is similar to ping, but the information it gets is much more detailed than the ping command. It shows the full path, the IP of the node, and the time taken time. This command is compared to a large network. Command format: Tracert IP address or hostname [-d] [- h maximumumhops] [- j host_list] [-w timeout] parameter meanings: -d does not resolve the name of the target host; -h maximum_hops Specifies the maximum search target address Skip count; -j host_list follows the address release source routing in the host list; -W Timeout Specifies timeout intervals, the program default time unit is milliseconds. For example, everyone wants to understand their own computer and target hosts.
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