An Introduction to Network Simulator 3 offers a thorough, practical discussion of the latest open source network simulator (NS-3). Written by industry experts, including the creator of NS-3, the book presents a comprehensive overview of the capabilities of NS-3, then goes on to provide clear, easy-to-use operating instructions for it, complete with numerous practical examples. It also describes how the NS-3 evolved, discussing the differences between available network simulators, both commercial OTS and open source software. A must-have desk reference for practicing network designers and network architects.