公开(公告)号：US09106576B2

公开(公告)日：2015-08-11

申请号：US13740229

申请日：2013-01-13

Applicant: NEC Laboratories America, Inc.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Kai Chen ,  Yueping Zhang ,  Vishal Singh

IPC: H04L12/725 ,  H04L12/46 ,  H04L12/24 ,  H04L12/911

CPC classification number: H04L45/302 ,  H04L12/4641 ,  H04L41/084 ,  H04L41/0896 ,  H04L45/306 ,  H04L47/70

Abstract: A method for policy-aware mapping of an enterprise virtual tenant network includes receiving inputs from a hosting network and tenants, translating resource demand and policies of the tenants into a network topology and bandwidth demand on each link in the network; pre-arranging a physical resource of a physical topology for clustering servers on the network to form an allocation unit before a VTN allocation; allocating resources of the hosting network to satisfy demand of the tenants in response to a VTN demand request; and conducting a policy aware VTN mapping for enumerating all feasibly resource mappings, bounded by a predetermined counter for outputting optimal mapping with policy-compliant routing paths in the hosting network.

Abstract translation: 一种用于企业虚拟租户网络的策略感知映射的方法包括从主机网络和租户接收输入，将租户的资源需求和策略转换为网络中每个链路上的网络拓扑和带宽需求; 预先布置物理拓扑的物理资源，用于网络上的聚类服务器，以在VTN分配之前形成分配单元; 分配主机网络的资源以满足VTN需求请求响应租户的需求; 以及执行策略感知VTN映射，用于枚举所有可行的资源映射，其由预定计数器限定，用于在主机网络中输出具有策略兼容路由路径的最佳映射。

公开(公告)号：US08976661B2

公开(公告)日：2015-03-10

申请号：US13736146

申请日：2013-01-08

Applicant: NEC Laboratories America, Inc.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ye Wang

IPC: H04L12/26 ,  H04L12/801 ,  H04L12/891

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: 公开了一种在网络中使用的设备。 该设备包括网络监视器，用于监控网络状态并收集通过网络的流量的统计信息;流量聚合单元，用于将流聚集成群集，识别可能导致网络问题的流;以及自适应控制单元， 根据网络反馈确定流量。 还公开了其它方法和系统。

公开(公告)号：US08924787B2

公开(公告)日：2014-12-30

申请号：US13736158

申请日：2013-01-08

Applicant: NEC Laboratories America, Inc.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ahsan Arefin

IPC: G06F11/00 ,  G06F11/34 ,  G06F11/30 ,  G06F11/07

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：US20130176852A1

公开(公告)日：2013-07-11

申请号：US13736146

申请日：2013-01-08

Applicant: NEC LABORATORIES AMERICA, INC.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ye Wang

IPC: H04L12/56

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: 公开了一种在网络中使用的设备。 该设备包括网络监视器，用于监控网络状态并收集通过网络的流量的统计信息;流量聚合单元，用于将流聚集成群集，识别可能导致网络问题的流;以及自适应控制单元， 根据网络反馈确定流量。 还公开了其它方法和系统。

公开(公告)号：US20140047274A1

公开(公告)日：2014-02-13

申请号：US13736158

申请日：2013-01-08

Applicant: NEC Laboratories America, Inc.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Yueping Zhang ,  Vishal Singh ,  Ahsan Arefin

IPC: G06F11/34

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：US20130185438A1

公开(公告)日：2013-07-18

申请号：US13740229

申请日：2013-01-13

Applicant: NEC Laboratories America, Inc.

Inventor： Cristian Lumezanu ,  Guofei Jiang ,  Kai Chen ,  Yueping Zhang ,  Vishal Singh

IPC: H04L12/56

CPC classification number: H04L45/302 ,  H04L12/4641 ,  H04L41/084 ,  H04L41/0896 ,  H04L45/306 ,  H04L47/70

Abstract: A method for policy-aware mapping of an enterprise virtual tenant network includes receiving inputs from a hosting network and tenants, translating resource demand and policies of the tenants into a network topology and bandwidth demand on each link in the network; pre-arranging a physical resource of a physical topology for clustering servers on the network to form an allocation unit before a VTN allocation; allocating resources of the hosting network to satisfy demand of the tenants in response to a VTN demand request; and conducting a policy aware VTN mapping for enumerating all feasibly resource mappings, bounded by a predetermined counter for outputting optimal mapping with policy-compliant routing paths in the hosting network.

Abstract translation: 一种用于企业虚拟租户网络的策略感知映射的方法包括从主机网络和租户接收输入，将租户的资源需求和策略转换为网络中每个链路上的网络拓扑和带宽需求; 预先布置物理拓扑的物理资源，用于网络上的聚类服务器，以在VTN分配之前形成分配单元; 分配主机网络的资源以满足VTN需求请求响应租户的需求; 以及执行策略感知VTN映射，用于枚举所有可行的资源映射，其由预定计数器限定，用于在主机网络中输出具有策略兼容路由路径的最佳映射。