Device that creates a larger computer network from two smaller networks
A high-level overview of network bridging, using the ISO/OSI layers and terminology
A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. This function is called network bridging.[1] Bridging is distinct from routing. Routing allows multiple networks to communicate independently and yet remain separate, whereas bridging connects two separate networks as if they were a single network.[2] In the OSI model, bridging is performed in the data link layer (layer 2).[3] If one or more segments of the bridged network are wireless, the device is known as a wireless bridge.
The main types of network bridging technologies are simple bridging, multiport bridging, and learning or transparent bridging.[4][5]
^"Traffic regulators: Network interfaces, hubs, switches, bridges, routers, and firewalls" (PDF). Cisco Systems. September 14, 1999. Archived from the original (PDF) on May 31, 2013. Retrieved July 27, 2012.
^"What is a Network Switch vs. a Router?". Cisco Systems. Retrieved July 27, 2012.
^Decker, Eric B.; Langille, Paul; McCloghrie, Keith; Rijsinghani, Anil (July 14, 1989). "RFC 1286 - Definitions of Managed Objects for Bridges". Tools.ietf.org. Retrieved October 19, 2013.
^"Local Area Networks: Internetworking". manipalitdubai.com. Archived from the original (PowerPoint) on May 13, 2014. Retrieved December 2, 2012.
^"Bridging Protocols Overview" (PowerPoint). iol.unh.edu. Retrieved December 2, 2012.
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