Reading up about the data link layer I found that the logical link control sublayer uses sequence numbers to find duplicate
packet frame transmissions.
I understood the sequence number game with respect to one transmitter and receiver but how does it work with multiple transmitters and a single receiver? Does the receiver need to maintain a table with MAC address and the next sequence number?
Or the duplicate
frame "data" (or whatever it is called at that layer) detection is done at a higher layer?