PART IIThe Control Plane
Building a single packet processing device[md]the router (or layer 3 switch, now commonly just called a switch, to the confusion of just about everyone) being the most common example[md]has been the focus up to this point. Now it is time to begin connecting routers together. Consider the network in Figure P2-1.
Figure P2-1 Topology Discovery
An application running on host A needs to obtain some information ...
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