17 Dynamic routing
This chapter covers
- The advantages of dynamic routing over static routing
- The types of dynamic routing protocols
- How a router decides which routes to enter in its routing table
- Activating dynamic routing protocols with the network command
After focusing on Layer 2 concepts for the previous several chapters, in this chapter, we return to the topic of routing—how routers forward packets between networks. In chapter 9, we learned about static routing, in which an administrator manually configures routes to build a router’s routing table. When using dynamic routing, the topic of this chapter, routers communicate with each other and build their routing tables automatically. Although static routing has its uses, dynamic routing ...
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