Chapter 6 Enhanced Interior Gateway Routing Protocol (EIGRP)
THE CCNP ENCOR EXAM OBJECTIVES COVERED IN THIS CHAPTER INCLUDE THE FOLLOWING:
- Domain 3.0 Infrastructure
- ✓ 3.2 Layer 3
EIGRP (RFC 7868) is a distance vector protocol. Instead of keeping link-state information for every router in the topology the way OSPF does, an EIGRP router only knows each neighbor's cost to a given prefix. The concept of distance vector protocols is fairly easy to grasp. The most complex thing about EIGRP is the way it calculates the cost of each route.
In this chapter, you'll learn about the following:
- EIGRP packet types
- The Diffusing Update Algorithm ...
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