Network recovery is critical capability that service providers must provide. It can be accomplished in four ways. Span, or local, protection is the most common recovery method. Another common method is path restoration which is accomplished end-to-end. Some service providers apply both span protection and path restoration in different parts of their networks in a “hybrid” configuration. Another more recent alternative is a feature in Multiprotocol Label Switching (MPLS) called “Fast Reroute.” This praxis addresses several fundamental problems related to each of the above network recovery options in large service provider networks. First, the effects of the numbers of links, demand unit sizes, and link size modularity have on the four recovery methods, individually and collectively, are examined. Next, the selection of the minimum cost recovery method given the presence and levels of the other options is determined. Finally, the cost differences of the recovery methods given any combination of the other options and their levels are presented.
Revision with unchanged content. A data stream being transmitted over a network channel with capacity less than the data transmission rate of the data stream causes sequential network problems. In this book, we present a new approach for shedding less-informative attribute data from a data stream to maintain the data transmission rate less than the network channel capacity. A scheme for shedding attributes, instead of tuples, becomes imperative in stream data, since shedding a complete tuple would lead to shedding some informative, as well as less-informative, attribute data in the tuple. Since data shed at the source site may be of interest to the user at the destination site, we design a data recovery approach, which maintains the minimal amount of information for data recovery purpose while imposing minimal overhead for data recovery on the source site. Our load shedding and data recovery approach (i) handles wide range of data streams in different application domains, (ii) is dynamic in nature, since each load shedding scheme adjusts the amount of data to be shed according to the current load and network capacity, and (iii) is adoptive, which is appealing in an ever-changing network environment, and (iv) is not based on queries, but works on general data streams instead.
As the scale of integration improves and technolgy shrinks, the more number of transistors are being packed into a chip that increases the density of the chip. This leads to the steady growth in the operating frequency and possesing capacity per chip, resulting in increased power dissipation. In modern VLSI systems, the clock is the most important signal because it controls the rate of data processing and communication. It provides a structured framework for dealing with high-complexity digital systems. Various survey and current research indicates that clock network consumes a large part of the total chip power. It is even much more than that of the ordinary logic used in the design. This book indicates the four novel low power flip-flops collectively called novel energy recovery flip-flops to reduce the power dissipation in a clock network. The energy recovery clocked flip-flops enable energy recovery from the H-tree based clock network, resulting in significant energy saving. The energy recovery flip-flops operate with a single phase sinusoidal clock generated by an efficient power clock generator.
Увлажняет и сохраняет увлажненность длительное время,смягчает.Стимулирует естественные функции кожи.Предотвращает преждевременное старение.
Смягчает и восстанавливает поврежденные волосы. Увлажняет и возвращает здоровый внешний вид ломким и пересушенным вьющимся волосам. Кондиционер Miraculous Recovery питает и реанимирует структуру поврежденных волос. Помогает справиться с проблемой секущихся концов и придает волосам мягкость, ухоженный вид, укрощает непослушные завитки вьющихся волос.
Питает и восстанавливает поврежденные волосы. Питает и ощутимо восстанавливает структуру ломких, поврежденных и пересушенных вьющихся волос. Восстанавливающий аминокомплекс в составе шампуня Miraculous Recovery вернет вашим волосам упругость и ухоженный вид.
Universal Axial Schottky/Fast Recovery/Fast Switching/Rectifier Diodes (100 Pieces/Pack) for DIY Projects