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1. 发明授权

US08135990B2 Multi-variate network survivability analysis 有权
标题翻译：多变量网络生存性分析
公开(公告)号：US08135990B2
公开(公告)日：2012-03-13
申请号：US11834058
申请日：2007-08-06
申请人： Vanko Vankov , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Shobana Narayanaswamy
发明人： Vanko Vankov , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Shobana Narayanaswamy
IPC分类号： G06F11/00
CPC分类号： H04L41/0681 , H04L41/5009 , H04L43/0876 , H04L43/16
摘要： Network survivability is quantified in such a way that failure cases can be compared and ranked against each other in terms of the severity of their impact on the various performance measures associated with the network. The degradation in network performance caused by each failure is quantified based on user-defined sets of thresholds of degradation severity for each performance measure. Each failure is simulated using a model of the network, and a degradation vector is determined for each simulated failure. A comparison function is defined to map the degradation vectors into an ordered set, and this ordered set is used to create an ordered list of network failures, in order of the network degradation caused by each failure.
摘要翻译：网络生存能力被量化，使得故障案例可以根据其对与网络相关联的各种性能测量的影响的严重性彼此进行比较和排名。基于用户定义的每个性能测量的劣化严重性阈值集，量化每个故障导致的网络性能的下降。使用网络模型模拟每个故障，并为每个模拟故障确定劣化矢量。定义比较函数将劣化向量映射到有序集合中，并且该有序集合用于按照由每个故障引起的网络劣化的顺序来创建网络故障的有序列表。

2. 发明授权

US08700958B2 Multi-variate network survivability analysis 有权
标题翻译：多变量网络生存性分析
公开(公告)号：US08700958B2
公开(公告)日：2014-04-15
申请号：US13412623
申请日：2012-03-06
申请人： Vanko Vankov , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Shobana Narayanaswamy
发明人： Vanko Vankov , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Shobana Narayanaswamy
IPC分类号： G06F11/00
CPC分类号： H04L41/0681 , H04L41/5009 , H04L43/0876 , H04L43/16
摘要： Network survivability is quantified in such a way that failure cases can be compared and ranked against each other in terms of the severity of their impact on the various performance measures associated with the network. The degradation in network performance caused by each failure is quantified based on user-defined sets of thresholds of degradation severity for each performance measure. Each failure is simulated using a model of the network, and a degradation vector is determined for each simulated failure. A comparison function is defined to map the degradation vectors into an ordered set, and this ordered set is used to create an ordered list of network failures, in order of the network degradation caused by each failure.
摘要翻译：网络生存能力被量化，使得故障案例可以根据其对与网络相关联的各种性能测量的影响的严重性彼此进行比较和排名。基于用户定义的每个性能测量的劣化严重性阈值集，量化每个故障导致的网络性能的下降。使用网络模型模拟每个故障，并为每个模拟故障确定劣化矢量。定义比较函数将劣化向量映射到有序集合中，并且该有序集合用于按照由每个故障引起的网络劣化的顺序来创建网络故障的有序列表。

3. 发明申请

US20090052333A1 TRAFFIC INDEPENDENT SURVIVABILITY ANALYSIS 有权
标题翻译：交通费独立生存率分析
公开(公告)号：US20090052333A1
公开(公告)日：2009-02-26
申请号：US12195393
申请日：2008-08-20
申请人： Vanko Vankov , Arun Pasupathy , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Yonghuan Cao
发明人： Vanko Vankov , Arun Pasupathy , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Yonghuan Cao
IPC分类号： G06F11/30
CPC分类号： H04L43/50
摘要： First-order effects of hypothesized fault conditions are determined by propagating discrete test packets between select nodes and noting the change of path, if any, taken by the test packet under each condition relative to the fault-free path. Tools are provided to create classes of node pairs of interest, and test packets are created only for select classes. The network is analyzed to identify fault conditions that are likely to impact system performance, and only these fault conditions are simulated. By providing a methodology for selecting classes of node pairs to test, and prioritizing the faults to simulate, a first-order survivability analysis of large networks can be performed efficiently and effectively. The efficiency of this technique is also enhanced by providing test packets that are representative of a wide range of possible source-destination combinations, and by evaluating only the source-destination combinations that may be directly affected by each fault condition.
摘要翻译：通过在选择节点之间传播离散的测试包，并注意到每个条件下相对于无故障路径，由测试包采取的路径（如果有的话）的变化来确定假设故障条件的一阶影响。提供工具来创建感兴趣的节点对类，并且只为选择类创建测试包。分析网络以识别可能影响系统性能的故障状况，并且仅模拟这些故障条件。通过提供一种选择要测试的节点对的类别并对故障进行优先级模拟的方法，可以有效和高效地执行大型网络的一阶生存性分析。通过提供表示广泛范围的可能的源 - 目的地组合的测试分组以及通过仅评估可能由每个故障状况直接影响的源 - 目的地组合来增强该技术的效率。

4. 发明授权

US07843840B2 Traffic independent survivability analysis 有权
标题翻译：交通独立生存能力分析
公开(公告)号：US07843840B2
公开(公告)日：2010-11-30
申请号：US12195393
申请日：2008-08-20
申请人： Vanko Vankov , Arun Pasupathy , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Yonghuan Cao
发明人： Vanko Vankov , Arun Pasupathy , Vinod Jeyachandran , Pradeep K. Singh , Alain J. Cohen , Yonghuan Cao
IPC分类号： G06F11/30
CPC分类号： H04L43/50
摘要： First-order effects of hypothesized fault conditions are determined by propagating discrete test packets between select nodes and noting the change of path, if any, taken by the test packet under each condition relative to the fault-free path. Tools are provided to create classes of node pairs of interest, and test packets are created only for select classes. The network is analyzed to identify fault conditions that are likely to impact system performance, and only these fault conditions are simulated. By providing a methodology for selecting classes of node pairs to test, and prioritizing the faults to simulate, a first-order survivability analysis of large networks can be performed efficiently and effectively. The efficiency of this technique is also enhanced by providing test packets that are representative of a wide range of possible source-destination combinations, and by evaluating only the source-destination combinations that may be directly affected by each fault condition.
摘要翻译：通过在选择节点之间传播离散的测试包，并注意到每个条件下相对于无故障路径，由测试包采取的路径（如果有的话）的变化来确定假设故障条件的一阶影响。提供工具来创建感兴趣的节点对类，并且只为选择类创建测试包。分析网络以识别可能影响系统性能的故障状况，并且仅模拟这些故障条件。通过提供一种选择要测试的节点对的类别并对故障进行优先级模拟的方法，可以有效和高效地执行大型网络的一阶生存性分析。通过提供表示广泛范围的可能的源 - 目的地组合的测试分组以及通过仅评估可能由每个故障状况直接影响的源 - 目的地组合来增强该技术的效率。

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