I suspect he means something more like; http://pockethernet.com/
There are simple tools that you just plug into a port, it will then light up to tell you the other end is connected to a switch for example (if it is patched it) because the link will come up, like the following: http://www.amazon.com/Smartronix-Linkcheck-Ethernet-Tester/dp/B000RGI6R6 I used to use a better one than that though but I can't remember what it is called nor find it via sporadic googling. .... Ah, here it is!: http://www.psiber.com/en/home/products/network-tester/lanmaster-25.html Cheers, James. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------