Applications At Data Link Layer
A data link layer technology, such as media access control (MAC) protocols on local area networks, has an address that has no significance beyond a single medium.
Besides Ethernet bridging based on MAC layer addresses, other data-link-layer technologies using forwarding tables include frame relay and Asynchronous Transfer Mode (ATM) switches, and multiprotocol label switching (MPLS). ATM has both link-local addresses and addresses that have end-to-end significance in the ATM domain.
Read more about this topic: Forwarding Information Base
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