Network Bridges

Network Bridges

A bridge connects two or more networks, or segments of the same network. These networks may use different physical and data link protocols. For example, you can install a bridge to connect a small lab of Macintosh computers using Local Talk to the school's main Ethernet network. Bridges filter network traffic. They examine each set of data, transmitting only appropriate data to each connected segment. (Hubs, by contrast, broadcast all information to each connected computer, whether or not that computer is the intended recipient.) In this manner, bridges help reduce overall network traffic.


Bridges are relatively simple and efficient traffic regulators. However, in most networks they have been replaced by their less expensive or more powerful cousins—hubs, switches, and routers. Most bridges operate by examining incoming or outgoing signals for information at OSI level 2, the data link level.


23 January 2015


Network Equipment, IT Equipment

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