Network bridge

Device that creates a larger computer network from two smaller networks / From Wikipedia, the free encyclopedia

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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.

A high-level overview of network bridging, using the ISO/OSI layers and terminology

The main types of network bridging technologies are simple bridging, multiport bridging, and learning or transparent bridging.[4][5]

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