公开(公告)号：WO2013106386A2

公开(公告)日：2013-07-18

申请号：PCT/US2013/020765

申请日：2013-01-09

Applicant: NEC LABORATORIES AMERICA, Inc.

Inventor： LUMEZANU, Cristian ,  JIANG, Guofei ,  ZHANG, Yueping ,  SINGH, Vishal ,  WANG, Ye

IPC: H04L12/26

CPC classification number: H04L47/12 ,  H04L43/026 ,  H04L43/16 ,  H04L47/2441 ,  H04L47/41 ,  H04L63/1425 ,  Y02D50/30

Abstract: A device used in a network is disclosed. The device includes a network monitor to monitor a network state and to collect statistics for flows going through the network, a flow aggregation unit to aggregate flows into clusters and identify flows that can cause a network problem, and an adaptive control unit to adaptively regulate the identified flow according to network feedback. Other methods and systems also are disclosed.

Abstract translation: 公开了在网络中使用的设备。 该设备包括：网络监控器，用于监控网络状态并收集流经网络的流量的统计数据;流量聚合单元，用于将流量聚合到群集中并识别可引起网络问题的流量;自适应控制单元，用于自适应地调节 根据网络反馈识别流量。 其他方法和系统也被公开。

公开(公告)号：WO2011140293A2

公开(公告)日：2011-11-10

申请号：PCT/US2011/035288

申请日：2011-05-05

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： DING, Min ,  SINGH, Vishal ,  ZHANG, Yueping ,  JIANG, Guofei

IPC: G06F9/44 ,  G06F15/16

CPC classification number: G06F9/54 ,  G06F11/3006 ,  G06F11/302 ,  G06F11/3051 ,  H04L41/046 ,  H04L43/0876 ,  H04L43/12

Abstract: A method and a system are disclosed for determining application dependency paths in a data center. The method and the system captures application traffic volume data on the servers with switches and monitoring agents; generates an application traffic matrix of all the components of the applications based on the application traffic volume data; estimates the number of the applications in the data center from the traffic matrix with a Rank Estimation via Singular Value Decomposition or Power Factorization Residue Errors process; and decomposes the traffic matrix into a first matrix and a second matrix with a non-negative matrix factorization process using the estimated number of applications. The first matrix represents a set of the components belonging to each of the applications and the second matrix represents the amount of traffic generated by each application over time. Any noise in the first and second matrices is removed with a concurrent volumes ratios based correlation process.

Abstract translation: 公开了一种用于确定数据中心中的应用依赖路径的方法和系统。 该方法和系统使用交换机和监控代理在服务器上捕获应用程序流量数据; 基于应用业务量数据生成应用的所有组件的应用业务矩阵; 通过奇异值分解或功率因子分解残差误差进行等级估计从业务矩阵估计数据中心中的应用数量; 并且使用估计的应用数量将业务矩阵分解为第一矩阵和具有非负矩阵分解过程的第二矩阵。 第一矩阵表示属于每个应用的组件的集合，第二矩阵表示每个应用随时间生成的流量。 第一和第二矩阵中的任何噪声均以基于并发卷比的相关过程被去除。

公开(公告)号：WO2013112288A1

公开(公告)日：2013-08-01

申请号：PCT/US2013/020795

申请日：2013-01-09

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： LUMEZANU, Cristian ,  JIANG, Guofei ,  ZHANG, Yueping ,  SINGH, Vishal ,  AREFIN, Ahsan

IPC: G06F11/36 ,  G06F9/44

CPC classification number: G06F11/3476 ,  G06F11/0793 ,  G06F11/3006 ,  G06F11/3017 ,  G06F11/302 ,  G06F11/3055 ,  H04L41/142 ,  H04L41/145 ,  H04L43/04

Abstract: A debugging system used for a data center in a network is disclosed. The system includes a monitoring engine to monitor network traffic by collecting traffic information from a network controller, a modeling engine to model an application signature, an infrastructure signature, and a task signature using a monitored log, a debugging engine to detect a change in the application signature between a working status and a non-working status using a reference log and a problem log, and to validate the change using the task signature, and a providing unit to provide toubleshooting information, wherein an unknown change in the application signature is correlated to a known problem class by considering a dependency to a change in the infrastructure signature. Other methods and systems also are disclosed.

Abstract translation: 公开了一种用于网络中的数据中心的调试系统。 该系统包括监视引擎，通过从网络控制器收集交通信息，建模引擎来模拟应用签名，基础设施签名和使用监控日志的任务签名来监视网络流量;调试引擎，用于检测网络流量的变化 使用参考日志和问题日志在工作状态和非工作状态之间的应用签名，以及使用所述任务签名来验证所述改变;以及提供单元，用于提供故障排除信息，其中所述应用签名中的未知变化被相关 通过考虑对基础设施签名的改变的依赖性来解决已知的问题类。 还公开了其它方法和系统。

公开(公告)号：EP2807563A1

公开(公告)日：2014-12-03

申请号：EP13741063.5

申请日：2013-01-09

Applicant: NEC Laboratories America, Inc.

Inventor： LUMEZANU, Cristian ,  JIANG, Guofei ,  ZHANG, Yueping ,  SINGH, Vishal ,  AREFIN, Ahsan

IPC: G06F11/36 ,  G06F9/44

CPC classification number: G06F11/3476 ,  G06F11/0793 ,  G06F11/3006 ,  G06F11/3017 ,  G06F11/302 ,  G06F11/3055 ,  H04L41/142 ,  H04L41/145 ,  H04L43/04

Abstract: A debugging system used for a data center in a network is disclosed. The system includes a monitoring engine to monitor network traffic by collecting traffic information from a network controller, a modeling engine to model an application signature, an infrastructure signature, and a task signature using a monitored log, a debugging engine to detect a change in the application signature between a working status and a non-working status using a reference log and a problem log, and to validate the change using the task signature, and a providing unit to provide toubleshooting information, wherein an unknown change in the application signature is correlated to a known problem class by considering a dependency to a change in the infrastructure signature. Other methods and systems also are disclosed.

公开(公告)号：EP2772021A2

公开(公告)日：2014-09-03

申请号：EP13735761.2

申请日：2013-01-09

Applicant: NEC Laboratories America, Inc.

Inventor： LUMEZANU, Cristian ,  JIANG, Guofei ,  ZHANG, Yueping ,  SINGH, Vishal ,  WANG, Ye

IPC: H04L12/26

CPC classification number: H04L47/12 ,  H04L43/026 ,  H04L43/16 ,  H04L47/2441 ,  H04L47/41 ,  H04L63/1425 ,  Y02D50/30

Abstract: A device used in a network is disclosed. The device includes a network monitor to monitor a network state and to collect statistics for flows going through the network, a flow aggregation unit to aggregate flows into clusters and identify flows that can cause a network problem, and an adaptive control unit to adaptively regulate the identified flow according to network feedback. Other methods and systems also are disclosed.

公开(公告)号：EP2567316A2

公开(公告)日：2013-03-13

申请号：EP11778318.3

申请日：2011-05-05

Applicant: NEC Laboratories America, Inc.

Inventor： DING, Min ,  SINGH, Vishal ,  ZHANG, Yueping ,  JIANG, Guofei

IPC: G06F9/44 ,  G06F15/16

CPC classification number: G06F9/54 ,  G06F11/3006 ,  G06F11/302 ,  G06F11/3051 ,  H04L41/046 ,  H04L43/0876 ,  H04L43/12

Abstract: A method and a system are disclosed for determining application dependency paths in a data center. The method and the system captures application traffic volume data on the servers with switches and monitoring agents; generates an application traffic matrix of all the components of the applications based on the application traffic volume data; estimates the number of the applications in the data center from the traffic matrix with a Rank Estimation via Singular Value Decomposition or Power Factorization Residue Errors process; and decomposes the traffic matrix into a first matrix and a second matrix with a non-negative matrix factorization process using the estimated number of applications. The first matrix represents a set of the components belonging to each of the applications and the second matrix represents the amount of traffic generated by each application over time. Any noise in the first and second matrices is removed with a concurrent volumes ratios based correlation process.