Day 3 Notes - owenkelly14/Net150 GitHub Wiki

Modern LANs use a "switched star" tech

Switches connect devices

Switched store MAC addresses and port information in a table

When a switch is first turned on, it acts like a hub until it can build a table of MAC addresses

When a switch doesn't know a hub it will broadcast to all ports

-----------------------------------------------------------------------------------------------------------------------------------------------------------ARP (Address Resolution Protocol)

This is how systems in a LAN find each others MAC addresses.