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Introduction:
Routing is the act of moving information across an internet from a source to a destination. Routing is often contrasted with bridging, which might seem to accomplish precisely the same thing to the casual observer.
The primary difference between the two is that bridging occurs at Layer 2 (the link layer) of the OSI reference model, whereas routing occurs at Layer 3 (the network layer).
This distinction provides routing and bridging with different information to use in the process of moving information from source to destination, so the two functions accomplish their tasks in different ways.
Network Routing - Presentation: