The purpose of Top-Down Network Design, Second Edition, is to help you design networks that meet a customer’s business and technical goals. Whether your customer is another department within your own company or an external client, this book provides you with tested processes and tools to help you understand traffic flow, protocol behavior, and internetworking technologies. After completing this book, you will be equipped to design enterprise networks that meet a customer’s requirements for functionality, capacity, performance, availability, scalability, affordability, security, and manageability.

Your business must be connected in order to compete in the global marketplace. Employees need to know that their company's network is accessible at any time, from any place. A Virtual Private Network (VPN) accomplishes this by utilizing remote connectivity technologies that combine existing internal networks with the Internet to securely communicate information. Building a Virtual Private Network is your key to designing, implementing, and securing a fully connected network that meets your business needs.

IPSec VPN Design consists of three main sections. The first section provides a comprehensive introduction to the IPSec protocol, including IPSec Peer Models. This section also includes an introduction to site-to-site, network-based, and remote access VPNs. The second section is dedicated to an analysis of IPSec VPN architecture and proper design methodologies. Peer relationships and fault tolerance models and architectures are examined in detail. Part three addresses enabling VPN services, such as performance, scalability, packet processing, QoS, multicast, and security. This book also covers the integration of IPSec VPNs with other Layer 3 (MPLS VPN) and Layer 2 (Frame Relay, ATM) technologies; and discusses management, provisioning, and troubleshooting techniques. Case studies highlight design, implementation, and management advice to be applied in both service provider and enterprise environments.

End-to-End QoS Network Design is a detailed handbook for planning and deploying QoS solutions to address current business needs. This book goes beyond discussing available QoS technologies and considers detailed design examples that illustrate where, when, and how to deploy various QoS features to provide validated and tested solutions for voice, video, and critical data over the LAN, WAN, and VPN.

Multiprotocol Label Switching (MPLS) provides the mechanisms to perform label switching, which is an innovative technique for high-performance packet forwarding. This book provides an in-depth study of MPLS technology, including MPLS theory and configuration, network design issues, and case studies. The MPLS/VPN architecture and all of its mechanisms are explained with configuration examples and suggested deployment guidelines. MPLS and VPNs provides the first in-depth discussion particular to Ciscos MPLS architecture. Multiprotocol Label Switching and Virtual Private Networks covers MPLS theory and configuration, network design issues, and case studies as well as one major MPLS application: MPLS-based VPNs. The MPLS/VPN architecture and all of its mechanisms are explained with configuration examples, suggested design and deployment guidelines, and extensive case studies.

The book starts with a technology refresher for each of the technologies covered in the design studies, including VPNs, TE, QoS, multicast, Pseudowires, network recovery, and IPv6. Following this overview are detailed design studies, each based on a set of characteristics and objectives common to a profile of networks deploying MPLS. The book contains a design study for an Inter-eXchange Carrier (IXC), a national telco, a Global Service Provider, and an enterprise. The authors develop each design study in a consistent manner, starting with a description of the network environment and supported services. They then identify the objectives that influenced the design. Each study then details all aspects of the network design using the latest MPLS technologies. Finally, a number of lessons to be drawn from the design study are pointed out, allowing readers to apply the solutions that meet their needs.

A comprehensive guide to understanding and configuring multiservice DWDM, SONET, and SDH architectures

This informative text describes how to build wireless sensor networks from the layers of the communication protocol through the design of network nodes. It also describes the design features of the wireless devices themselves.

Обчислювальна мережа – це інтегрована, територіально розподілена система, яка складається із множини взаємодіючих робочих ЕОМ та підсистеми зв’язку для передачі даних. Існують і такі визначення комп’ютерних мереж: Комп’ютерна мережа (computer network) – це група комп’ютерів, об’єднаних між собою за допомогою засобів зв’язку або іншого середовища передачі даних з метою здійснення обміну інформацією та її обробки. Комп’ютерна мережа – це система розподіленого опрацювання інформації, яка складається як мінімум з двох комп’ютерів, котрі взаємодіють між собою за допомогою засобів зв’язку.