Difference Between Layer 2 and Layer 3 in Networking

In networking, Layer 2 and Layer 3 refer to different layers of the OSI model. Here are the key differences:

Layer 2 (Data Link Layer)

• Operates at the data link layer of the OSI model.
• Deals with MAC addresses and frames.
• Responsible for local addressing on a LAN.
• Switches operate at Layer 2.

Layer 3 (Network Layer)

• Operates at the network layer of the OSI model.
• Deals with IP addresses and packets.
• Responsible for logical addressing and routing.
• Routers operate at Layer 3.

Understanding the distinction between Layer 2 and Layer 3 is crucial for network engineers in designing, implementing, and troubleshooting networks.