I have a building wide network wih a core switch in the datacenter and uplinks from 8 closet switch stacks.
I took a trace from a port from each closet stack to observe broadcast traffic (no port spans, etc). The first thing I noticed was I was seeing multiple other conversations on this port.
I always thought a switch would only send traffic to a port if it was bound for that specific device on that port (MAC address) or was a broadcast/multicast.
I'm seeing this behaviour on each of the eight closet stacks and am worried that it is causing degraded performance especially on busy days.
Any suggestions on what I should look for int he configuration file?