ts of BGP (Border Gateway Protocol) and its most important practical applications, such as traffic management policies, scalable architectures, stability and security mechanisms, and its role in big Enterprises and ISP networks. For each topic covered, also the implementation aspects in Cisco and Juniper technologies are included, essential to fully understand the main mechanisms of the protocol and its applications. The central idea behind the book is combining theory and practice, to avoid turning it only into a (debatable) presentation of the standard. This is why, apart from explaining in detail and with many examples how the protocol works, and its role in IP networks, the book also includes many practical application suggestions, resulting from many decades of experience.