Synopsis Networking which emerged, as an allied discipline during the initial years of IT revolution is fast becoming a separate domain in itself. Today with greater demand for data and communication needs networking is fast witnessing a sea change in terms of technology, integration and its assimilation in the overall technology domain. The spurt in the wireless technologies has also fuelled this demand so much so that networking is taught as a separate subject in all the technology related and curriculum throughout the world. This particular book is written in accordance with the latest curriculum and academic needs of both students and academicians from around the world. The book covers both the historical and the modern perspective, which will help the students and the teachers to clearly understand the intricacies of the subject.