Except for switches which have switch MAC address, all devices that connected to the Internet have this unique identifying number, from desktop computers, laptops, cell phones, tablets to wireless security cameras, and even your connected refrigerator have a MAC address. You may have noticed that every piece of hardware on your local network has a MAC address in addition to the IP address. When the Switch doesn’t have an entry for the Destination MAC address received in a Frame, it will flood the frame to ALL ports (on that VLAN) except to the port which originated the frame.Switch Mac Address: What’s It and How Does it Work? The Unicast flood process occurs when the switch does not know which port to send the frame since it does not have it on its CAM. This process usually confuses a lot of people, but think about a Broadcast that knows WHO is the Destination, but does not know WHICH port exactly to send it? It’s the Unicast flooding!īroadcast is an address used when a host does not know the specific address (such as ). Now the Switch knows both Host ports and traffic frames can come and go successfully!īut wait you mentioned … Unicast flooding, what is this? A flood of unicasts? A Broadcast? It’s weirdo
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December 2022
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