This paper is devoted to researching the routing reliability and router standby mechanism for smart and cooperation network. The method of updating and initiating the standby router has been also provided. With the aid of virtual interface, both the main router and standby router will be transparent to the network. Through Mini-Net simulated experiment, this paper has verified the mechanism. It...

A growing concern, energy consumption in data centers has been the focus of numerous white papers, research studies, and news reports [1, 11, 4, 3]. According to a report to U.S. congress [11], the total energy consumption by servers and data centers in U.S. was about 61 billion kWh in 2006, and is projected to nearly double by 2011 [11]. Among the components in data centers, it has been shown ...

The problem of reliability of new object of distributed hardware software (DHS) multi-agent system (MAS) is considered. DHS MAS is determined as a system that is based on agent technologies and consists of both agents and hardware components required for execution of agents and for interaction of agents with an environment. Reliability improvement, fault-recovery and several reliability assessm...

Modern Power systems are smart, interconnected, interdependent, load sharing and phased mission systems. Reliability of such complex power systems is very important in design, planning, installation and maintenance to provide electrical energy as economical as possible with an acceptable degree of reliability. In this thesis four new methods for reliability evaluation and enhancement of power s...

Evaluating the reliability of a system requires knowledge failure modes to which it is subject. Complex topology systems generally require high level availability, function arrangement elements (components) in system. To avoid serious failures for such complex systems, recourse can be had redundancy techniques available literature. These help improve reliability, without affecting components. T...

fault tolerance is one of the important issues in industries, such as transportation, military, chemical and nuclear sectors. reliability and safety are two vital attributes of fault tolerant systems, and redundancy is a common way to improve these parameters. this article studies the impact of including cold standby spares in system architecture. to do this, it uses the markov model of the sys...

In modeling a cold standby redundancy allocation problem (RAP) with imperfect switching mechanism, deriving a closed form version of a system reliability is too difficult. A convenient lower bound on system reliability is proposed and this approximation is widely used as a part of objective function for a system reliability maximization problem in the literature. Considering this lower bound do...

Reliability is one of the most important concepts in computer networks field. Any network must be supplied with different techniques and methods to guarantee its continuity and functionality under the most sever circumstances. This paper highlights the steps taken at the University of Mosul to enhance the reliability of its computer network. Firstly, the current topology of the network is exami...

Safety systems and protection systems can experience two phases of operation (standby and active); an accurate dependability analysis must combine an analysis of both phases. The standby mode can last for a long time, during which the safety system is periodically tested and maintained. Once a demand occurs, the safety system must operate successfully for the length of demand. The failure chara...

This document describes a framework comprised of a number of scenarios and associated requirements for pseudowire (PW) redundancy. A set of redundant PWs is configured between provider edge (PE) nodes in single-segment PW applications or between terminating PE (T-PE) nodes in multi-segment PW applications. In order for the PE/T-PE nodes to indicate the preferred PW to use for forwarding PW pack...