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A bridge is a network device used to divide large networks into smaller, more manageable segments. By filtering traffic and reducing unnecessary data flow, bridges help improve network performance and efficiency. They operate at the data link layer (Layer 2) of the OSI model, using MAC addresses to forward or filter data packets between network segments.

Bridges are particularly beneficial in reducing network congestion. They ensure that only the necessary data crosses into other network segments, keeping local traffic within its designated area. This not only enhances performance but also reduces the chances of data collisions in busy networks.

Role of Routers

Routers, on the other hand, connect multiple networks and direct data packets toward their destination using IP addresses. Operating at the network layer (Layer 3) of the OSI model, routers analyze data packets and determine the most efficient path for delivery.

Unlike bridges, which only separate network segments, routers make intelligent decisions about routing data based on network conditions, destination addresses, and protocols. This ability to manage traffic dynamically makes routers essential for modern enterprises with complex, interconnected networks.