Internetworking Technologies Handbook, Fourth Edition, is a comprehensive reference for students that help them understand and implement contemporary internetworking technologies. A reference "must-have" for any networking course of every experience level, it helps students master the terms, concepts, technologies, and devices used in todays networking industry. Learn how to incorporate internetworking technologies into a LAN/WAN environment. Complete with new, updated chapters on security, storage, optical networking, scalability, and speed, this book is a complete and up-to-date reference to the topics that are essential to all networking students, regardless of course level. Students will obtain a greater understanding of LAN and WAN networking, particularly the hardware, protocols, and services involved. Fundamental technology information is provided on a broad range of integral systems and services, including detailed descriptions, review questions to ensure concept comprehension and retention, and additional resources for further study. Coverage is also extended not only to new networking concepts, but also to older, legacy systems, providing a more realistic picture of the real-world networking environments in which IT professionals operate. Tools and guidelines for optimizing system performance will increase productivity and improve efficiency, helping students develop the skill sets for making cost-efficient decisions for their networks.