Where are the clients from in switch MS120

[Merakibgp]

Hi After the switch MS120 is connected to internet, i can see one port is green as uplink port. But we I click the Summary on this switch page, I can see a lot clients on the page, which lists some thing like mac address, usage, ip address etc. I wonder how these clients come to the switch through this only one active port? Thank you

[jdsilva]

Most likely the switch is seeing broadcast traffic from those clients.

[PhilipDAth]

I agree with @jdsilva.  Specifically you are likely to see the follow traffic from the upstream device through the uplink port:

• broadcast traffic
• multicast traffic
• traffic being flooded because the destination mac address is not known by the upstream device
• probably some control traffic, like spanning tree

[Adam]

Or depending how you have the Meraki network configured in the dashboard they could be clients from other switches etc?

[BlakeRichardson]

As mentioned this is broadcast trafic. Meraki is a great tool for easily seeing what clients are in your network. You can see everything across all VLANS either. 

A single switch alone is a great monitoring tool.