Looking Ahead

We have talked enough about architectures and routing behaviors. If you want to put things into perspective by learning actual routing implementations, the best is yet to come. The following chapters touch upon important designs and architectures already discussed in this book by presenting actual configuration using the Cisco IOS software language.

The configuration examples are accompanied by complete explanations of why a certain action is taken and what outcome results from it. Actual displays are taken from Cisco routers to point out multiple BGP attributes and how the configuration has affected the routing tables. By going through the examples in the next two chapters, I hope you will achieve a high level of expertise in integrating your networks in the global Internet.