基于OSPF的温和重启的触发机制的研究与实现

首先分析了传统内部路由协议在重启动过程中不能继续转发数据包的缺点，介绍了一种叫做温和重启的功能来解决此问题，根据触发机制的不同将其分为前启动模式和后启动模式并对各种模式下的不同处理方式进行分析，然后给出了一个温和重启的实现方式。实验结果表明，该实现方法是可行的，前启动模式具有更好的稳定性。     

基于分布式路由器的LDP优雅重启技术的研究与实现

本文系统介绍了基于分布式路由器体系结构,结合高可靠性网络的相关技术的LDP Graceful Restart 技术。优雅重启机制能够在系统重启后,保持转发状态的平滑过度,从而尽量减少短暂的路由振荡。LDP优雅重启机制则会最小化由于LDP重启导致MPLS网络的不稳定。文章最后介绍了在分布式路由器平台上实现LDP Graceful Restart的一种方案。     

远程计算机重启原理及实现

远程重启是黑客入侵中一项很有用的服务,如果在我们远程计算机上面安装了某些服务或者某些需要重新启动后才能生效的软件,利用远程重启软件重新启动这台计算机就是最简便也最为快捷的一种方式,不然要是等到该计算机的主人来启动,那我们就什么事情都做不成了。网上可以实现远程重启的软件     

DNA计算在软件抗衰技术中的应用研究*

针对软件系统中进程间控制、调用及数据访问的关系,分析了进程间的耦合程度,给出了判定进程间重启相关度方法和系统重启树的构建规则,并结合DNA计算的原理和特性,给出了判定进程间重启相关度DNA计算模型,并初步制定了重启实施策略,为实现智能化细粒度软件抗衰提供支持.     

平滑重启机制在BGP中的实现

BGP作为边界网关协议用在自治系统之间,BGP的重启会使得网络报文流量成倍增长,平滑重启机制可以有效的克服这一弱点.文中详细介绍了BGP的平滑重启机制,着重描述了其设计实现方法和关键问题.目前,BGP的平滑重启功能已经在基于Linux的T比特路由器中实现.     

面向IPv4/v6的BGP平滑重启的设计与实现

BGP通过平滑重启机制,可以最小化BGP重启所引起的对路由的负面影响,保证BGP在重启阶段仍然可以提供转发数据服务.文中着重于面向IPv4/v6的平滑重启能力的具体实现,介绍了平滑重启的工作过程和设计实现方法,并阐述了关键技术难点.目前,BGP的平滑重启功能已经在基于Linux的T比特路由器中实现.     

一种基于失效频度的微重启群判定方法

为减少递归重启过程中不必要的递归开销以实现应用系统的快速恢复,在微重启技术的基础上,提出一种微重启群的判定方法。该方法通过负载测试并在测试期间注入异常来获取组件的平均失效频度,以此分析组件间的失效关联程度,给出微重启群判定算法。研究结果表明,该方法可针对组件化分布式应用的故障进行重启,使系统平均恢复时间减少30%左右。     

神经网络在计算系统软件抗衰重启技术中的应用研究

将神经网络应用于计算系统的抗衰重启技术中,以实现细粒度的软件抗衰,可以更大程度地增强软件抗衰的智能化,提高抗衰效率及准确性,进一步降低抗衰开销,提高软件可靠性.判定模块重启相关性及模块可达集是实施细粒度软件抗衰策略的关键环节.文中结合神经网络工作原理,构建了判定模块间重启相关度及模块可达集的神经网络结构模型.该模型根据软件系统中模块间的控制、调用及数据访问关系,通过分析模块间的耦合程度和重启相关性的相关理论及其之间的关系,制定模块重启相关度和模块可达集的判定算法,最终完成系统模块间重启相关度及模块可达集的判定任务,从而为实现智能化细粒度软件抗衰提供支持.     

Minix3的微重启自愈体系架构研究

传统的自愈系统能够自主发现、诊断及排除错误,但是对用户存在影响并丢失组件间的状态一致性,不能够满足高可靠性和高可用性的要求.微重启是面向恢复计算ROC的重要软件恢复机制,以递归方式重启故障组件子集,并结合适毁性组件维护状态一致.针对具有自愈功能的Minix3操作系统,本文提出了基于微重启的自愈体系架构,并以适毁性驱动组件的实验证明,组件重启后可以继续执行未完成的任务,并且重启时间略有增长.     

面向IPv4／v6的BGP平滑重启的设计与实现

BGP通过平滑重启机制,可以最小化BGP重启所引起的对路由的负面影响,保证BGP在重启阶段仍然可以提供转发数据服务。文中着重于面向IPv4/v6的平滑重启能力的具体实现,介绍了平滑重启的工作过程和设计实现方法,并阐述了关键技术难点。目前,BGP的平滑重启功能已经在基于Linux的T比特路由器中实现。     

Assessing Ideational and Evaluative Skills and Creative Styles and Attitudes

This article describes the rationale for the multiphase creative problem solving process, and reports the findings from an empirical investigation conducted to facilitate the problem solving of managers. The ideational skills of the managers were assessed before and after training in a complete process of creative problem solving, along with their ideational attitudes, creative problem solving style (i.e., generator, conceptualizer, optimizer, or implementor), and evaluative skill (i.e., ability to recognize original ideas). The most important findings indicated that the training had a significant impact on the evaluative accuracy of the managers. They were significantly more accurate in their judgments about original ideas after training, both in their identification of original ideas and their recognition of unoriginal ideas. After training, the managers also gave more solutions and more original solutions to problems. Finally, several variables (e.g., the “preference for active divergence” attitude, and the conceptualizer process style) seemed to moderate the impact of training. Training was therefore effective, with specific effects that can be predicted from pre-training individual differences in attitudes and process style.     

Rank and select revisited and extended

The deep connection between the Burrows–Wheeler transform (BWT) and the so-called rank and select data structures for symbol sequences is the basis of most successful approaches to compressed text indexing. Rank of a symbol at a given position equals the number of times the symbol appears in the corresponding prefix of the sequence. Select is the inverse, retrieving the positions of the symbol occurrences. It has been shown that improvements to rank/select algorithms, in combination with the BWT, turn into improved compressed text indexes.     

高等院校行政分析与决策系统的设计与实现

为提高高等院校的管理水平和决策水平,充分利用校园网资 源,开发了高等院校行政财政分析与决策系统。解决了诸如数据的动态查询、自动生成报表 、网络环境下数据共享等技术问题,具有网上数据共享、图形界面友好和安全的保密措施等 特点。     

Stochastic balancing and approximation-stability and minimality

A new method of stochastic model reduction has recently been introduced by Desai et al. [1], [2]. The stability of the reduced order model has not previously, been considered. In this paper, we show that the stability of the reduced order model follows directly from the results of Pernebo and Silverman [3]. It is also shown that the reduced order model is minimal, in the controllability/observability sense. The relevance of this notion of minimality to stochastic minimality is made clear.