CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

Routing Protocol Fundamentals

Characteristics of Routing Protocols Introduction

Router Services Introduction

Routing occurs when a router or some other Layer 3 device (for example, a multilayer switch) makes a forwarding decision based on network address information (that is, Layer 3 information). A fundamental question, however, addressed throughout this book, is from where does the routing information originate?

A router could know how to reach a network by simply having one of its interfaces directly connect to that network. Perhaps you statically ...