Bridging fundamentals

Network bridging occurs at the Data link layer (Layer 2) of the OSI model and the Link layer of the Network model. A simple bridge is simple to a repeater, which extends a network segment beyond the length that would normally be allowed by amplifying the signal. One of the differences is that the two network segments connected by a bridge may use different forms of media (with repeaters, the media must be the same, so you won't see a 100-Base-T segment and a 1000 Base-T segment connected by a repeater). Another difference is that bridges use a store-and-forward mechanism to forward packets. This creates two collision domains, making it possible to add more nodes to the network without the number of collisions becoming ...

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