Overview
Dynamic routing, even in small internetworks, can involve much more than just enabling the default behavior of a routing protocol. A few simple commands may be enough to get dynamic routing started, but more advanced configuration must be done to enable such features as routing update control and exchanges among multiple routing protocols. You can optimize routing in a network by controlling when a router exchanges routing updates and what those updates contain. This chapter examines the key IOS route optimization features, including routing update control, policy-based routing, and route redistribution.