Hi guys, I am currently trying to figure out an issue with a reasonably large small business network. The main switches (2 x Cisco and 4 x Netgear, all managed) are all running flatout all the time. As most would know the indication lights on a switch, especially a managed switch should only be showing the path that a packet would take, in this case ALL ports that have connectivity are lighting up together, almost as if there were collisions going on. The strange thing about this is there appears to be no network degradation/slowing at all. Everything is working fine otherwise. Its almost as if there is packets being flooded that none of them can identify. We have tried powering them off one at a time with no luck, then tried powering them all down together and bringing them back up. We have also tried shutting down everything (Except for a few of the servers, as they could not be taken down, we will try this tomorrow in the early hours). We are hoping we can isolate the issue to one of them, but in the meantime, has anyone got any other ideas to try? I'm asking now in the hopes of avoiding an early start on Thursday (Definately happening tomorrow lol.) Thanks guys.