CCNP ENCOR Certification Notes

Part III: Routing

Chapter 6. IP Routing Essentials

A router’s primary function is to move an IP packet from

one network to a different network.

The common dynamic routing protocols found on most

routing platforms today are as follows:

Routing Information Protocol Version 2 (RIPv2)

• Enhanced Interior Gateway Routing (EIGRP)
• Open Shortest Path First (OSPF)
• Intermediate System-to-Intermediate System (IS-IS)
• Border Gateway Protocol (BGP)

Distance Vector Algorithms

Distance vector routing protocols, such as RIP, advertise

routes as vectors, where distance is a metric (or cost)

such as hop count, and vector is the next-hop router’s IP

used to reach the destination