Data Link Layer

Exploring Ethernet MAC Addresses: Understanding the Foundation of Network Communication

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As described in data link layer address, Ethernet uses MAC addresses for its layer 2 communication. Almost all the ports in a LAN have MAC addresses. And they all are unique. How they keep it unique? The fundamental is quite simple. MAC addresses are burnt in addresses and hence can’t be changed (In reality, I … Read more

Data Link Layer Addressing: Understanding MAC Addresses

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Eventually IP became the most accepted protocol for layer 3 communication, but IP can transfer packet only up to one network but within one network we need an address on which packets can be transferred. As data link layer is responsible for communication in local boundaries so it becomes data link layer protocols'(Ethernet, 802.3, 802.5, … Read more