Loop back test is used to test if the ports are functioning properly.Cross over cables temporarily connect devices when router, switch or hub is not present.Faults in cables like twisted wire pairs, coaxial cables can be located using time-domain reflectometer.Network monitor provides information related to network traffic.Protocol analyzers perform the function of interpreting the contents of the packets that are intercepted.Ping, tracert, netstat, ipconfig, and winipcfg are some commands that can be used to troubleshoot various network problems.Netstat is used to check the ports that are active on your system.
Ipconfig is used for Windows 2000 or later versions.Winipcfg is used for windows 98 or other versions.ARP links IP address of node to its physical address.
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