Hi, I work for a small company current with 1 router, 1 wireless access point, and 4 switches on a gigabit Ethernet network.
I recently learned about the performance increases associated with a parallel backbone. so, I ran a crossover cable between the switch downstairs and the main switch upstairs. In both instances when I connected the cable, all the clients lost both LAN and WAN connectivity.
Why do the network clients lose connectivity when I attempt to implement a parallel backbone (run multiple crossover cables) between two network devices (switches and routers)?
This is my first question on Experts-Exchange, so if more information is necessary, please let me know.