When reading (or being lectured about) all the glorious details of dynamic routing protocols, it’s hard not to come away with the impression that dynamic routing is always better than static routing. It’s important to keep in mind that the primary duty of a dynamic routing protocol is to automatically detect and adapt to topological changes in the network. The price of this “automation” is paid in bandwidth and maybe queue space, in memory, and in processing time.
Another price of dynamic routing is a reduced control of routing choices. The routing protocol decides what the best path is to a given destination, you don’t. If precise control of path selection is important, particularly when the p...
Static vs. Dynamic Routing
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