At first, all switches declare themselves as the root bridge with their own BID set as the Root ID
After a switch boots, it begins to send out BPDU frames every two seconds
These BPDU frames contain the BID of the sending switch and the BID of the root bridge, known as the Root ID
Eventually, the switches learn through the exchange of BPDUs which switch has the lowest BID and will agree on one root bridge
All switches in the broadcast domain participate in the election process
The STA designates a single switch as the root bridge and uses it as the reference point for all path calculations
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