IT Tips and How To's

Testing Network Faults Connection Keywords: network | ping | trace | telnet | connection | setup | hardware Summary: Help with testing connection or network problems. 1. Introduction 2. Testing Your Network 3. Using the command line 4. Ping - "Can my data reach the destination?" 5. Traceroute - "How does my data reach its destination?" 6. DNS Lookup - "Is my data going to the right address? " 7. Netstat - "What's my computer connecting to? " 8. Telnet - "Can I connect to it?" 9. Netshell - "One-stop network check" 1. Introduction There are many possible causes of connection problems. This guide will show how you can investigate problems using some simple tools that come with most versions of Windows. To use all of the tools though, you will need Windows XP. 2. Testing your network The tools in ...

Uplink Port Definition An uplink port is a special port (i.e., connector) on a network switch or hub that reverses the transmit and receive circuits of any twisted pair cable connected to it. It is also referred to as an MDI (medium dependent interface) port . Uplink ports eliminate the need for crossover cables . A crossover cable is identical to a conventional twisted pair copper wire patch cable (also called straight-through cable ) except that the wires on the cable are crossed over so that the receive signal pins on the RJ-45 connector on one end are connected to the transmit signal pins on the RJ-45 connector on the other end. Its purpose is to allow the direct connection of two like devices (i.e., two hubs, two switches or two computers). An uplink port is required for linking two like devices directly with a standard patch cable because the wire pairs would be connected transmit-to-transmit and receive-to-receive, and thus the devices would not be able to communicate with...