__ I'm very immature __ I'm appropriately mature for my age __ I'm very mature __ I'm gaining maturity (growing personally) __ I have most or all the requisites for personal growth __ people who know me would agree with my answers above.
So the frame gets broadcasted throughout the broadcast domain, until the end device with a matching MAC address responds to the broadcast, thus giving the switch a new source address to add to its MAC table. It duplicates the frame to all Ethernetports, except the port it came from.
When it shows several MAC addresses on the same port it is an indication that this port is connected to another switch or to a hub and that several remote devices are reachable through this local port. I am not aware of any command that will show device type of what is connected to the switch.