Routing
In internetworking, the
process of moving a packet of data from source to destination.
Routing is usually performed by a dedicated device called a router.
Routing is a key feature of the Internet because
it enables messages to pass from one computer to another and eventually reach
the target machine. Each intermediary computer performs routing by passing
along the message to the next computer. Part of this process involves analyzing
a routing table to determine the best path.
Routing is often confused with bridging, which performs a similar function. The
principal difference between the two is that bridging occurs at a lower level
and is therefore more of a harware function
whereas routing occurs at a higher level where the software component
is more important. And because routing occurs at a higher level, it can perform
more complex analysis to determine the optimal path for the packet.
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