Computer Networking: A Top-Down Approach (5th Edition)

 Computer networks: a top-down approach (5th Edition)
\r Description \rData communications: a top-down approach (5th Edition) important advantage : An emphasis on the application layer paradigms and application programming interfaces, encouraging a lively, hands-on experience with protocols and networking concepts. Key issues : computer networks and the Internet, the Application Layer, Transport Layer, Network Layer, Link Layer and LAN, wireless and mobile networks, Multimedia Networking, Security in Computer Networks, Network Management, New discussions on VPN, IPsec, VLAN and updated technology treatment. MARKET : A useful reference for computer professionals.Certain data-communication protocols pig in the spotlight, but all of them have much in common. Computer Networks: A top-down approach with the Internet explains the technical problems that are inherent in communicating digital information from point to point. The top-down approach mentioned in the subtitle means that the book starts at the top of the protocol stack – at the application layer – and works its way down through the other layers, until it reaches bare wire.

author, for the most part, shun the well-known seven-layer Open Systems Interconnection (OSI) protocol stack in favor of its own five-layer (application, transport, network, link and physical) model. It is an effective method to help weed out some of the hand waving traditionally associated with the more obtuse layers in the OSI model. The approach is definitely theoretical – don’t look here for instructions on how to configure Windows 2000 or a Cisco router – but it’s relevant to reality, and should help anyone who needs to understand networking as a programmer, systems architect, or even administration guru.

treatment of the network layer, where routing takes place, is typical of the overall style. In discussing routing, authors James Kurose and Keith Ross explain (by lots of clear, definition-packed text) what routing protocols need to do: find the best route to a destination. Then present the mathematics that determine the best path, show some code that implements these algorithms and illustrate the logic by using excellent conceptual diagrams. Actual implementations of algorithms – including Internet Protocol (both IPv4 and IPv6) and several popular IP routing protocols – help you make the transition from pure theory to networking technologies. – David Wall Fri Topics covered: The theory behind data networks, with thorough discussion of the problems that are posed at each level (application layer get much attention). For each layer, there are academic coverage of networking problems and solutions, followed by discussion of real technologies. Special sections deal with network security and transmission of digital multimedia.\r Computer Networking: A top-down approach (5th Edition)

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