The huge growth of internet has exposed the problem of scaling and management in a big datagram based packet communication. New algorithms, architectures and routing protocols are regularly being developed. New protocols on internet layer and improvements to existing protocols are continuously being planned. Because of this rapid boom in the internet world, a lot of applications and devices are being developed. All of these applications and devices needs to show better consistency, performance and effectiveness for transferring data over a network. Router plays a crucial role in sending the data from one network to another network. IP based routing is used for exchange of data on internet in spite of better functionality, it also have some drawbacks as well because of large amount of growing demand by the new internet applications and software. The term Traffic Engineering (TE) is used to resolve the issues related to IP routing. It is used to produce the expected and definite services to the users of internet service. Traffic Engineering can be applied with the help of multiple networks.
Multi-Protocol Label Switching (MPLS) is rapidly emerging technology, which plays a key role in next generation networks by delivering QoS and traffic engineering (TE) features. MPLS is helpful in managing traffic when some links or paths are under and/or over utilized. Traffic engineering is the main strength of MPLS. Where an IP-based network is connectionless, MPLS based network defines definite paths for network traffic based on some Quality of Service level. In MPLS a look – up in switching table is certainly less complex and less time consuming than a corresponding routing table look–up in an IP router. This book presents an analysis of MPLS signaling protocols for traffic engineering and shows the capability of providing traffic engineering in MPLS compared to the conventional routing protocol, and also explains the MPLS LSR operations based on the basic LSR functionality of classification, queue, and scheduling. After comparative analysis of MPLS and non-MPLS network it shows that MPLS provides improved network performance for heavy traffic environments. This is useful to professionals and researcher who are working on MPLS networks.
Traffic engineering is a set of actions whose goal is to evaluate and optimize the performance of operational networks. The performance of an operational network is enhanced by addressing traffic-oriented performance measures, such as delay, delay variation, packet loss, and throughput, while utilizing network resources economically and reliably. One of the most important traffic engineering actions is the control of the routing function in the network so that traffic can be steered through it as effectively as possible. This book is based on a work which introduces novel and practical algorithms that optimize traffic routing within operational IP and MPLS networks.
The Internet based solutions have developed rapidly in the last decade. Online social networks are among the most popular solutions. The capabilities of mobile phones enable to reach social networks via different interfaces. However, it is an open question how to involve them efficiently in the social network architecture. We should realize the fact that the phonebook of the mobile device describes the social relationships of its owner. Based on that, relationships can be discovered automatically. Content distribution is becoming more and more important in social networks. BitTorrent is one of the most efficient peer-to-peer based content distribution solution. Involving mobile phones into such network is challenging, however it has great benefits e.g. when applying such architecture in mobile related social networks. This book addresses these issues and proposes novel and efficient approach considering mobile environment. The book brings several practical examples and real measurements to help understating the results.
A guide to designing and implementing VPLS services over an IP/MPLS switched service provider backbone. Today's communication providers are looking for convenience, simplicity, and flexible bandwidth across wide area networks-but with the quality of service and control that is critical for business networking applications like video, voice and data. Carrier Ethernet VPN services based on VPLS makes this a reality. Virtual Private LAN Service (VPLS) is a pseudowire (PW) based, multipoint-to-multipoint layer 2 Ethernet VPN service provided by services providers By deploying a VPLS service to customers, the operator can focus on providing high throughput, highly available Ethernet bridging services and leave the layer 3 routing decision up to the customer. Virtual Private LAN Services (VPLS) is quickly becoming the number one choice for many enterprises and service providers to deploy data communication networks. Alcatel-Lucent VPLS solution enables service providers to offer enterprise customers the operational cost benefits of Ethernet with the predictable QoS characteristics of MPLS. Items Covered: - Building Converged Service Networks with IP/MPLS VPN Technology; - IP/MPLS VPN Multi-Service Network Overview; - Using MPLS Label Switched Paths as Service Transport Tunnels; - Routing Protocol Traffi c Engineering and CSPF; - RSVP-TE Protocol; - MPLS Resiliency - Secondary LSP; - MPLS Resiliency - RSVP-TE LSP Fast Reroute; - Label Distribution Protocol; - IP/MPLS VPN Service Routing Architecture; - Virtual Leased Line Services; - Virtual Private LAN Service; - Hierarchical VPLS; - High Availability in an IP/MPLS VPN Network; - VLL Service Resiliency; - VPLS Service Resiliency; - VPLS BGP Auto-Discovery; - PBB-VPLS; - OAM in a VPLS Service Network.
This book focuses on the performance evaluation of the Optical Burst Switched (OBS) networks. A simulation framework based on OPNET Modeler is designed and implemented to evaluate the performance of an OBS network in the presence of self-similar traffic sources. The impact of self-similar traffic sources and specific design parameters imposed on the network is assessed in terms of burst assembly delay, its jitter and burst loss ratio. The performance metrics have a strong dependency on parameters such as number of packets per burst, assembly timeout, number of available wavelengths and the degree of the traffic self-similarity. Furthermore, the impact of time and size-based burst assembly algorithms utilized in edge routers, on the self-similarity level of the output traffic, is evaluated. Both static & adaptive approaches are examined. This research utilizes the OPNET Modeler® focusing on the characteristics of the output traffic. Various Hurst parameter estimators have been applied to estimate the Hurst parameter of the aggregated input and output traffic streams. The performance impact of the burst assembly approaches in terms of burst assembly delay and its jitter is measured.
"Advanced QoS for Multi-Service IP/MPLS Networks" is the definitive guide to Quality of Service (QoS), with comprehensive information about its features and benefits. Find a solid theoretical and practical overview of how QoS can be implemented to reach the business objectives defined for an IP/MPLS network. Topics include standard QoS models for IP/MPLS networks, essential QoS features, forwarding classes and queuing priorities, buffer management, multipoint shared queuing, hierarchical scheduling, and rate limiting. This book will enable you to create a solid QoS architecture/design, which is mandatory for prioritizing services throughout the network.
QoS, short for "quality of service", is one of the most important goals a network designer or administrator will have. Ensuring that the network runs at optimal precision with data remaining accurate, traveling fast, and to the correct user are the main objectives of QoS. The various media that fly across the network including voice, video, and data have different idiosyncrasies that try the dimensions of the network. This malleable network architecture poses an always moving potential problem for the network professional. The authors have provided a comprehensive treatise on this subject. They have included topics such as traffic engineering, capacity planning, and admission control. This book provides real world case studies of QoS in multiservice networks. These case studies remove the mystery behind QoS by illustrating the how, what, and why of implementing QoS within networks. Readers will be able to learn from the successes and failures of these actual working designs and configurations. - Helps readers understand concepts of IP QoS by presenting clear descriptions of QoS components, architectures, and protocols - Directs readers in the design and deployment of IP QoS networks through fully explained examples of actual working designs - Contains real life case studies which focus on implementation.
Queueing theory is an essential concept to review in light of tactical wireless communications and networks. Wireless communication systems, in particular frequency spectrum, are expensive and it is imparative that we make optimal use of frequency spectrum. Therefore the performance analysis is an important factor in the designing phase of the networks. This book addresses the performance evaluation and enhancement of wireless networks, examining the channel assignment problem of cellular networks.
The purpose of this research study was to evaluate the performance of real time video over IP network especially the critical real-time video for medical online applications. This study was based on experiments which involved MPEG’s video CODECS. These experiments were divided into two parts and each part of the experiment was aimed to cover various metrics under study. The practical part focused on testing the performance of different video compression codecs (MPEG1, MPEG2, MPEG4) that were implemented on different IP networks (native IPv6, native IPv4, 6to4 and 6in4), to see the IP network’s impaction on the video performance and the behavior of the video codecs itself under different IP networks.
The power of wireless sensor networks (WSN) lies in the ability to deploy large numbers of tiny nodes that assemble and configure themselves. Usage scenarios for these devices range from real-time tracking, to monitoring of environmental conditions, to Military applications, to monitoring of the health of structures or equipment. There is extensive research in the development of new algorithms for data aggregation ,ad hoc routing, and distributed signal processing in the context of wireless sensor networks. As the algorithms and protocols for wireless sensor network are developed, they must be supported by a low-power, efficient and flexible hardware platform. This book describes systematic performance study of two state-of-the-art dynamic routing protocols for WSN, the Dynamic Source Routing protocol (DSR) and the Ad Hoc On-Demand DistanceVector protocol (AODV).
MPLS-enabled networks are enjoying tremendous growth, but practical information on managing MPLS-enabled networks has remained hard to find. Until now. MPLS Network Management: MIBs, Tools, and Techniques is the first and only book that will help you master MPLS management technologies and techniques, as they apply to classic MPLS networks, traffic-engineered networks, and VPNs. Written by the co-author of most current MPLS management standards, it provides detailed, authoritative coverage of official MIBs, examining key topics ranging from syntax to access levels to object interaction. It also offers extensive consideration of third-party management interfaces, including tools for metering traffic and predicting traffic growth and behavior. If you're a network operator, network device engineer, or MPLS application developer, you need this book to get all you can out of all of MPLS's many capabilities. The only book devoted entirely to the tools and techniques for controlling, monitoring, debugging, and optimizing MPLS-enabled networks. Authoritative information from the co-author of most IETF MIBs relating to MPLS and GMPLS, PWE3, and PPVPN. Covers both standards-based and proprietary management technologies. Includes interviews with seminal figures in the development of MPLS. Via a companion web site, provides information on late-breaking developments in MPLS management and links to additional resources. To be followed by a second volume presenting best-practice case studies dealing with how real companies approach the management of their MPLS networks. Издание на английском языке.
The main goal of the book is to develop models for designing WLAN, used in transport networks with mobile objects. At that quality indicators of functioning of networks should be maximally close to the actual data. Due to the fact that the interaction of local wireless network takes place within the coverage area, its Access Point occurs with a limited number of clients - closed cyclic models are used for transport vehicles to simulate such systems. In this book, the number of mobile objects determined depending on the distance from the base station and identification of system parameters of data transmission, based on this the problem of determining of the actual speed of data transmission from the moving objects is solved, located within the coverage area of the base station of wireless network.
Multimedia services, such as IPTV and video conferencing, have emerged to be an important part of the traffic sources in new communication systems requiring a High Speed IP switching. This book presents a scalable architecture of a high-performance IP switch which is based on Priority Active Queue Management (PAQM). It provides multimedia services with improved quality of service (QoS) for the communication system. Better Quality of service, in terms of delay, through-put and loss-rates, availability and security can be provided by using a packet scheduling technique and a buffer management architecture of packet switching networks. These techniques are applied to all kind of interconnected networks such as Wimax networks, ATM networks and IP networks.
This work is concerned with the detailed study of Asia’s largest sewage treatment plant of 345 Million Litre per Day capacity based on Up flow Anaerobic Sludge Blanket reactor, installed at Bharwara, Lucknow, Uttar Pradesh, India. The performance evaluation and design analysis of the sewage treatment plant has been carried out to comment on the adequacy of design and capacity. It will also prove quite useful as its a compiled information for ready reference in the area of wastewater engineering.