Computer Networks, it is appropriate for Computer Networking or Introduction to Networking courses at both the undergraduate and graduate level in Computer Science, Electrical Engineering, Computer Engineering Degree and Diploma. It takes a structured approach to explaining how networks work from the inside out. It covers the LAN, inter-networking, all the layers of OSI model, focusing primarily on TCP/IP. Particular attention is paid to congestion. The book is suitable as the primary text for an undergraduate or introductory graduate course in computer networking, as a supplemental text for a wide variety of network-related courses, and as a reference work.