WHY ROUTE DISCOVERY?
In order to connect networks together so that they may exchange information, and in order to move traffic through these networks efficiently, a method is needed whereby a specific path (a route) is found among the many nodes (routers, servers, workstations) and routes that connect two or more network users together. But it is not just a route that allows traffic to be exchanged between the users; it is the “best” route between these users.
The term best is defined based on what one considers important in the support of the user traffic. For a real-time video conference, best might be a route that offers the lowest and most consistent delay. For a funds transfer to a bank, best might be a route that offers encryption services. ...
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