PortFinder: Switch Port Mapper

A wall jack, a cable that disappears into the wall… and no idea which port it comes out on. PortFinder polls your switches and answers within seconds: “Floor 2, port 14”. WHERE AM I PLUGGED IN? Plug your Mac (or your iPad with an Ethernet adapter) into the jack and tap the button: PortFinder finds your address in the tables of every switch and shows the switch and port in large type. SEARCH An IP address, a MAC address or simply “Floor 2 port 14”: PortFinder cross-references ARP and forwarding tables, rules out inter-switch links and points to the probable location. LINK MONITORING You are in the wiring closet while a colleague plugs a cable in at the other end of the building? The port that just went “Up” appears immediately, along with the detected device. PORT DETAILS Link state, speed, duplex, VLAN, STP, LLDP neighbor, PoE power and the list of connected devices with their…