Top down network design 3rd edition about description sample content updates features presents an up to date end to end design process for creating networks with maximum performance security scalability and support for itsm management processes focuses on supporting complex collaboration and the extensive use of video. The purpose of top down network design third edition is to help you design networks that meet a customers business and technical goals whether your customer is another department within your own company or an external client this book provides you with tested processes and tools to help you understand traffic flow protocol behavior and internetworking technologies. The purpose of top down network design third edition is to help you design networks that meet a customers business and technical goals whether your customer is another department within your own company or an external client this book provides you with tested processes and tools to help you understand traffic flow protocol behavior and internetworking technologies. The purpose of top down network design third edition is to help you design networks that meet a customers business and technical goals whether your customer is another department within your own company or an external client this book provides you with tested processes and tools to help you understand traffic flow protocol behavior and internetworking technologies. The purpose of top down network design third edition is to help you design networks that meet a customers business and technical goals whether your customer is another department within your own company or an external client this book provides you with tested processes and tools to help you understand traffic flow protocol behavior and internetworking technologies