I am foggy about MAC Addresses.. Does every port on a switch have it's own MAC Address, or does the switch, itself, have a MAC Address; or both?
Solved STP MAC Addresses
Ironically, both! But when working with STP, the device's MAC address is the one that is used. You might ask why and how it does it.
Technically, every port on a switch is a NIC. (So every port has a MAC)
Also, the Switch has a MAC address too BUT this is represented by the LOWEST MAC address of all the ports on the switch.
So in STP, the lowest MAC address on the switch is the one that will be used when doing the STP Root Bridge Election
Edutainer Manager, ITProTV
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