Someone caused a network loop and all workstatons and servers became unuseable at a customer site. There was a message in the system tray of each workstation and server that said duplicate IP detected. It ended up being a desktop switch which created the loop.
There are main switches that are stacked from Netgear and some departments beyond 200 feet have edge switches uplinked using fiber. One server 2003 DHCP server giving IP's. Unfortunately there are also desktop switches.
My question is are there any hardware devices that can query all the computers and show what computer name and IP is causing the loop or desktop switch as in this case?
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