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公开(公告)号：US09736053B2
公开(公告)日：2017-08-15
申请号：US14665069
申请日：2015-03-23
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Cristian Lumezanu , Junghwan Rhee , Nipun Arora , Qiang Xu , Guofei Jiang
IPC: H04L12/751 , H04L12/715 , H04L12/721
Abstract: A computer implemented method for network monitoring includes providing network packet event characterization and analysis for network monitoring that includes supporting summarization and characterization of network packet traces collected across multiple processing elements of different types in a virtual network, including a trace slicing to organize individual packet events into path-based trace slices, a trace characterization to extract at least 2 types of feature matrix describing those trace slices, and a trace analysis to cluster, rank and query packet traces based on metrics of the feature matrix.
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公开(公告)号：US09720753B2
公开(公告)日：2017-08-01
申请号：US14957566
申请日：2015-12-02
Applicant: NEC Laboratories America, Inc.
Inventor： Pallavi Joshi , Hui Zhang , Jianwu Xu , Xiao Yu , Guofei Jiang
CPC classification number: G06F11/0751 , G06F11/0715 , G06F11/3006 , G06F11/3414 , G06F11/3447 , G06F11/3476 , H04L41/00 , H04L41/142 , H04L41/16
Abstract: Systems and methods are disclosed for detecting error in a cloud infrastructure by running a plurality of training tasks on the cloud infrastructure and generating training execution logs; generating a model miner with the training execution logs to represent one or more correct task executions in the cloud infrastructure; after training, running a plurality of tasks on the cloud infrastructure and capturing live execution logs; and from the live execution logs, if a current task deviates from the correct task execution, indicating an execution error for correction in real-time.
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公开(公告)号：US20170132053A1
公开(公告)日：2017-05-11
申请号：US15265267
申请日：2016-09-14
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Guofei Jiang , Junghwan Rhee , Nipun Arora
CPC classification number: G06F9/542 , G06F9/44505 , G06F11/3404 , G06F11/3466
Abstract: Methods and systems for profiling requests include generating request units based on collected kernel events that include complete request units and half-open request units. The generated request units are sequenced based on a causality relationship set that describes causality relationships between kernel events.
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公开(公告)号：US09450823B2
公开(公告)日：2016-09-20
申请号：US14453054
申请日：2014-08-06
Applicant: NEC Laboratories America, Inc.
Inventor： Nipun Arora , Hui Zhang , Cristian Lumezanu , Junghwan Rhee , Guofei Jiang , Hui Lu
CPC classification number: H04L41/082 , H04L12/4675 , H04L41/0226 , H04L41/0803 , H04L41/12 , H04L41/20
Abstract: Method and systems for controlling a hybrid network having software-defined network (SDN) switches and legacy switches include initializing a hybrid network topology by retrieving information on a physical and virtual infrastructure of the hybrid network; generating a path between two nodes on the hybrid network based on the physical and virtual infrastructure of the hybrid network; generating a virtual local area network by issuing remote procedure call instructions to legacy switches in accordance with a network configuration request; and generating an SDN network slice by issuing SDN commands to SDN switches in accordance with the network configuration request.
Abstract translation: 用于控制具有软件定义网络（SDN）交换机和传统交换机的混合网络的方法和系统包括通过检索混合网络的物理和虚拟基础设施上的信息来初始化混合网络拓扑; 基于混合网络的物理和虚拟基础设施，在混合网络上生成两个节点之间的路径; 通过根据网络配置请求向传统交换机发出远程过程呼叫指令来产生虚拟局域网; 以及根据网络配置请求向SDN交换机发出SDN命令来生成SDN网络切片。
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公开(公告)号：US09367821B2
公开(公告)日：2016-06-14
申请号：US14839363
申请日：2015-08-28
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Xia Ning , Junghwan Rhee , Guofei Jiang , Hongteng Xu
CPC classification number: G06N99/005 , G06F9/5011 , G06F11/00 , G06F11/34 , G06F11/36 , G06N7/005
Abstract: A system and method for profiling a request in a service system with kernel events including a pre-processing module configured to obtain kernel event traces from the service system and determine starting and ending communication pairs of a request path for a request. A learning module is configured to learn pairwise relationships between the starting and ending communication pairs of training traces of sequential requests. A generation module is configured to generate communication paths for the request path from the starting and ending communication pairs of testing traces of concurrent requests using a heuristic procedure that is guided by the learned pairwise relationships and generate the request path for the request from the communication paths. The system and method precisely determine request paths for applications in a distributed system from kernel event traces even when there are numerous concurrent requests.
Abstract translation: 一种用于在具有内核事件的服务系统中对请求进行分析的系统和方法，所述内核事件包括预处理模块，所述预处理模块被配置为从所述服务系统获取内核事件跟踪并且确定请求的请求路径的起始和结束通信对。 学习模块被配置为学习顺序请求的训练轨迹的开始和结束通信对之间的成对关系。 生成模块被配置为使用由所学习的成对关系指导的启发式过程从并发请求的测试跟踪的起始和结束通信对生成针对请求路径的通信路径，并且从通信路径生成针对请求的请求路径 。 即使有许多并发请求，系统和方法也可以精确地确定来自内核事件跟踪的分布式系统中应用程序的请求路径。
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Patent Agency Ranking
公开(公告)号：US20160057018A1
公开(公告)日：2016-02-25
申请号：US14830303
申请日：2015-08-19
Applicant: NEC Laboratories America, Inc.
Inventor： Qiang Xu , Cristian Lumezanu , Zhuotao Liu , Nipun Arora , Abhishek Sharma , Hui Zhang , Guofei Jiang
IPC: H04L12/24 , H04L12/727
CPC classification number: H04L41/12 , G06F9/45533 , H04L41/083 , H04L43/087 , H04L45/02 , H04L45/121 , H04L45/123 , H04L45/124
Abstract: Systems and methods for decoupled searching and optimization for one or more data centers, including determining a network topology for one or more networks of interconnected computer systems embedded in the one or more data center, searching for routing candidates based on a network topology determined, and updating and applying one or more objective functions to the routing candidates to determine an optimal routing candidate to satisfy embedding goals based on tenant requests, and to embed the optimal routing candidate in the one or more data centers.
Abstract translation: 一种用于一个或多个数据中心的去耦合搜索和优化的系统和方法，包括确定嵌入在所述一个或多个数据中心中的互连计算机系统的一个或多个网络的网络拓扑，基于确定的网络拓扑来搜索路由选择，以及 更新和应用一个或多个目标函数到路由候选以基于租户请求来确定最佳路由候选以满足嵌入目标，并且将最佳路由候选嵌入在一个或多个数据中心中。
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67.发明授权Blackbox memory monitoring with a calling context memory map and semantic extraction 有权Blackbox内存监控与调用上下文存储器映射和语义提取公开(公告)号：US09003240B2
公开(公告)日：2015-04-07
申请号：US14012000
申请日：2013-08-28
Applicant: NEC Laboratories America, Inc.
Inventor： Junghwan Rhee , Hui Zhang , Nipun Arora , Guofei Jiang , Kenji Yoshihira
CPC classification number: G06F11/3034 , G06F11/073 , G06F11/079 , G06F11/30 , G06F11/3037 , G06F11/3051 , G06F11/3476 , G06F11/3604 , G06F11/3636 , G06F2201/865
Abstract: A computer implemented method provides efficient monitoring and analysis of a program's memory objects in the operation stage. The invention can visualize and analyze a monitored program's data status with improved semantic information without requiring source code at runtime. The invention can provide higher quality of system management, performance debugging, and root-cause error analysis of enterprise software in the production stage.
Abstract translation: 计算机实现的方法在操作阶段提供对程序的存储器对象的有效监视和分析。 本发明可以使用改进的语义信息可视化和分析被监视程序的数据状态，而不需要运行时的源代码。 本发明可以在生产阶段提供更高质量的系统管理，性能调试和企业软件的根本原因误差分析。
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68.发明授权Efficient unified tracing of kernel and user events with multi-mode stacking 有权通过多模式堆叠高效统一跟踪内核和用户事件公开(公告)号：US08898644B2
公开(公告)日：2014-11-25
申请号：US13901964
申请日：2013-05-24
Applicant: NEC Laboratories America, Inc.
Inventor： Junghwan Rhee , Hui Zhang , Nipun Arora , Guofei Jiang , Kenji Yoshihira
CPC classification number: G06F11/3636 , G06F11/3466 , G06F11/3476 , G06F2201/86 , G06F2201/865
Abstract: The invention efficiently provides user code information for kernel level tracing approaches. It applies an advanced variation of stack walking called multi-mode stack walking to the entire system level and generates the unified trace where the user code and kernel events are integrated. The invention uses runtime stack information and internal kernel data structures. Therefore, source code for user level code and libraries are not required for inspection. The invention introduces the mechanism to narrow down the monitoring focus to specific application software and improve monitoring performance.
Abstract translation: 本发明有效地提供用于内核级跟踪方法的用户代码信息。 它将堆栈行走的高级变体称为多模式堆栈走向整个系统级别，并生成用户代码和内核事件集成的统一跟踪。 本发明使用运行时堆栈信息和内部内核数据结构。 因此，用户级代码和库的源代码不需要进行检查。 本发明介绍了将监控重点缩小到具体应用软件的机制，提高监控性能。
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公开(公告)号：US08875158B2
公开(公告)日：2014-10-28
申请号：US13850531
申请日：2013-03-26
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Junghwan Rhee , Guofei Jiang , Kenji Yoshihira
CPC classification number: G06F9/542 , G06F11/3466 , G06F11/3636 , G06F2201/86 , G06F2201/865
Abstract: A method for request profiling in service systems with kernel events includes collecting kernel events traces from a target system, the kernel event traces being obtainable from individual service machines by instrumenting core kernel functions, analyzing kernel event traces for constructing end-to-end request profiling traces consisting of kernel events belonging to service processes, and categorizing request traces responsive to the analyzing with the constructing including grouping requests based on marking kernel events used in the analyzing.
Abstract translation: 在具有内核事件的服务系统中请求分析的方法包括从目标系统收集内核事件跟踪，内核事件跟踪可通过测试核心内核功能从各个服务机器获得，分析内核事件跟踪以构建端到端请求分析 由属于服务进程的内核事件组成的跟踪，以及响应于构建分析的分类请求分类，包括基于分析中使用的内核事件的分组请求。
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公开(公告)号：US20140109112A1
公开(公告)日：2014-04-17
申请号：US13850531
申请日：2013-03-26
Applicant: NEC Laboratories America, Inc.
Inventor： Hui Zhang , Jungwhan Rhee , Guofei Jiang , Kenji Yoshihira
IPC: G06F9/54
CPC classification number: G06F9/542 , G06F11/3466 , G06F11/3636 , G06F2201/86 , G06F2201/865
Abstract: A method for request profiling in service systems with kernel events includes collecting kernel events traces from a target system, the kernel event traces being obtainable from individual service machines by instrumenting core kernel functions, analyzing kernel event traces for constructing end-to-end request profiling traces consisting of kernel events belonging to service processes, and categorizing request traces responsive to the analyzing with the constructing including grouping requests based on marking kernel events used in the analyzing.
Abstract translation: 在具有内核事件的服务系统中请求分析的方法包括从目标系统收集内核事件跟踪，内核事件跟踪可通过测试核心内核功能从各个服务机器获得，分析内核事件跟踪以构建端到端请求分析 由属于服务进程的内核事件组成的跟踪，以及响应于构建分析的分类请求分类，包括基于分析中使用的内核事件的分组请求。
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