Explaining the Difference between Layer 2 and Layer 3 Switches in a Network Infrastructure

The key difference between a Layer 2 switch and a Layer 3 switch lies in their functionality within a network infrastructure.

Layer 2 Switch

• Focus Keyword: Layer 2 Switch
• A Layer 2 switch operates at the Data Link layer (Layer 2) of the OSI model.
• It uses MAC addresses to forward data packets within the same network segment.
• Provides basic switching and VLAN support.

Layer 3 Switch

• Focus Keyword: Layer 3 Switch
• A Layer 3 switch operates at the Network layer (Layer 3) of the OSI model.
• It can perform routing functions based on IP addresses.
• Capable of routing data across different network segments.
• Offers more advanced features such as access control lists and quality of service.

In summary, while Layer 2 switches focus on MAC addresses and operate within the same network segment, Layer 3 switches work at a higher network layer and can route data between different network segments based on IP addresses, offering more advanced routing and networking capabilities.