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    Method for implementing and reporting one-way network measurements
    1.
    发明申请
    Method for implementing and reporting one-way network measurements 有权
    实现和报告单向网络测量的方法

    公开(公告)号：US20070268882A1

    公开(公告)日：2007-11-22

    申请号：US11478948

    申请日：2006-06-30

    Applicant: Lee Breslau ,  Nicholas G. Duffield ,  Subhabrata Sen

    Inventor： Lee Breslau ,  Nicholas G. Duffield ,  Subhabrata Sen

    IPC: H04J3/16

    CPC classification number: H04L43/10 ,  H04L43/026 ,  H04L43/50 ,  Y02D50/30

    Abstract: A method is disclosed for implementing and reporting network measurements between a source of probe packets and an element, such as a router. The invention exploits commonly implemented features on commercial elements. By exploiting these features, the expense of deploying special purpose measurement devices can be avoided. In one aspect of the invention, a plurality of probe packets is transmitted in a packet network with each of the probe packets having the same key and the same aggregation characteristic. A report is then received from an instructionless element regarding the plurality of probe packets, thereby enabling measurement of a parameter of the packet network.

    Abstract translation: 公开了一种用于实现和报告探测分组的源和诸如路由器的元件之间的网络测量的方法。 本发明利用了商业元素上普遍实现的功能。 通过利用这些功能，可以避免部署专用测量设备的费用。 在本发明的一个方面，在分组网络中发送多个探测分组，每个探测分组具有相同的密钥和相同的聚合特性。 然后从关于多个探测分组的无指令元素接收到报告，从而能够测量分组网络的参数。

    Method for implementing and reporting one-way network measurements
    2.
    发明授权
    Method for implementing and reporting one-way network measurements 有权
    实现和报告单向网络测量的方法

    公开(公告)号：US07953020B2

    公开(公告)日：2011-05-31

    申请号：US11478948

    申请日：2006-06-30

    Applicant: Lee Breslau ,  Nicholas G. Duffield ,  Subhabrata Sen

    Inventor： Lee Breslau ,  Nicholas G. Duffield ,  Subhabrata Sen

    IPC: H04L12/28

    CPC classification number: H04L43/10 ,  H04L43/026 ,  H04L43/50 ,  Y02D50/30

    Abstract: A method is disclosed for implementing and reporting network measurements between a source of probe packets and an element, such as a router. The invention exploits commonly implemented features on commercial elements. By exploiting these features, the expense of deploying special purpose measurement devices can be avoided. In one aspect of the invention, a plurality of probe packets is transmitted in a packet network with each of the probe packets having the same key and the same aggregation characteristic. A report is then received from an instructionless element regarding the plurality of probe packets, thereby enabling measurement of a parameter of the packet network.

    Abstract translation: 公开了一种用于实现和报告探测分组的源和诸如路由器的元件之间的网络测量的方法。 本发明利用了商业元素上普遍实现的功能。 通过利用这些功能，可以避免部署专用测量设备的费用。 在本发明的一个方面，在分组网络中发送多个探测分组，每个探测分组具有相同的密钥和相同的聚合特性。 然后从关于多个探测分组的无指令元素接收到报告，从而能够测量分组网络的参数。

    Statistical, signature-based approach to IP traffic classification
    3.
    发明授权
    Statistical, signature-based approach to IP traffic classification 失效
    统计，基于签名的IP流量分类方法

    公开(公告)号：US08031599B2

    公开(公告)日：2011-10-04

    申请号：US12635127

    申请日：2009-12-10

    Applicant: Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    Inventor： Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    IPC: H04L12/28

    CPC classification number: H04L41/5022 ,  H04L41/142

    Abstract: A signature-based traffic classification method maps traffic into preselected classes of service (CoS). By analyzing a known corpus of data that clearly belongs to identified ones of the preselected classes of service, in a training session the method develops statistics about a chosen set of traffic features. In an analysis session, relative to traffic of the network where QoS treatments are desired (target network), the method obtains statistical information relative to the same chosen set of features for values of one or more predetermined traffic attributes that are associated with connections that are analyzed in the analysis session, yielding a statistical features signature of each of the values of the one or more attributes. A classification process then establishes a mapping between values of the one or more predetermined traffic attributes and the preselected classes of service, leading to the establishment of QoS treatment rules.

    Abstract translation: 基于签名的流量分类方法将流量映射到预选的服务等级（CoS）。 通过分析明确属于所选择的服务类别的已知数据库，在训练课程中，该方法开发关于所选择的一组交通特征的统计。 在分析会话中，相对于期望QoS处理的网络的业务量（目标网络），该方法获得相对于与所连接的连接相关联的一个或多个预定业务属性的值的相同所选择的特征集的统计信息 在分析会话中分析，产生一个或多个属性的每个值的统计特征签名。 然后，分类过程建立一个或多个预定业务属性的值与预选的业务类别之间的映射，导致建立QoS处理规则。

    Statistical, signature-based approach to IP traffic classification
    4.
    发明授权
    Statistical, signature-based approach to IP traffic classification 失效
    统计，基于签名的IP流量分类方法

    公开(公告)号：US07660248B1

    公开(公告)日：2010-02-09

    申请号：US10764001

    申请日：2004-01-23

    Applicant: Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    Inventor： Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    IPC: H04L12/26

    CPC classification number: H04L41/5022 ,  H04L41/142

    Abstract: A signature-based traffic classification method maps traffic into preselected classes of service (CoS). By analyzing a known corpus of data that clearly belongs to identified ones of the preselected classes of service, in a training session the method develops statistics about a chosen set of traffic features. In an analysis session, relative to traffic of the network where QoS treatments are desired (target network), the method obtains statistical information relative to the same chosen set of features for values of one or more predetermined traffic attributes that are associated with connections that are analyzed in the analysis session, yielding a statistical features signature of each of the values of the one or more attributes. A classification process then establishes a mapping between values of the one or more predetermined traffic attributes and the preselected classes of service, leading to the establishment of QoS treatment rules.

    Abstract translation: 基于签名的流量分类方法将流量映射到预选的服务等级（CoS）。 通过分析明确属于所选择的服务类别的已知数据库，在训练课程中，该方法开发关于所选择的一组交通特征的统计。 在分析会话中，相对于期望QoS处理的网络的业务量（目标网络），该方法获得相对于与所连接的连接相关联的一个或多个预定业务属性的值的相同所选择的特征集的统计信息 在分析会话中分析，产生一个或多个属性的每个值的统计特征签名。 然后，分类过程建立一个或多个预定业务属性的值与预选的业务类别之间的映射，导致建立QoS处理规则。

    Statistical, Signature-Based Approach to IP Traffic Classification
    5.
    发明申请
    Statistical, Signature-Based Approach to IP Traffic Classification 失效
    统计，基于签名的IP流量分类方法

    公开(公告)号：US20100085889A1

    公开(公告)日：2010-04-08

    申请号：US12635127

    申请日：2009-12-10

    Applicant: Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    Inventor： Nicholas G. Duffield ,  Matthew Roughan ,  Subhabrata Sen ,  Oliver Spatscheck

    IPC: H04L12/26 ,  H04L12/56

    CPC classification number: H04L41/5022 ,  H04L41/142

    Abstract: A signature-based traffic classification method maps traffic into preselected classes of service (CoS). By analyzing a known corpus of data that clearly belongs to identified ones of the preselected classes of service, in a training session the method develops statistics about a chosen set of traffic features. In an analysis session, relative to traffic of the network where QoS treatments are desired (target network), the method obtains statistical information relative to the same chosen set of features for values of one or more predetermined traffic attributes that are associated with connections that are analyzed in the analysis session, yielding a statistical features signature of each of the values of the one ore more attributes. A classification process then establishes a mapping between values of the one or more predetermined traffic attributes and the preselected classes of service, leading to the establishment of QoS treatment rules.

    Abstract translation: 基于签名的流量分类方法将流量映射到预选的服务等级（CoS）。 通过分析明确属于所选择的服务类别的已知数据库，在训练课程中，该方法开发关于所选择的一组交通特征的统计。 在分析会话中，相对于期望QoS处理的网络的业务量（目标网络），该方法获得相对于与所连接的连接相关联的一个或多个预定业务属性的值的相同所选择的特征集的统计信息 在分析会话中进行分析，产生一个或多个属性的每个值的统计特征签名。 然后，分类过程建立一个或多个预定业务属性的值与预选的业务类别之间的映射，导致建立QoS处理规则。

    Method and apparatus for one-way passive loss measurements using sampled flow statistics
    7.
    发明授权
    Method and apparatus for one-way passive loss measurements using sampled flow statistics 有权
    使用采样流统计的单向无源损耗测量的方法和装置

    公开(公告)号：US07924739B2

    公开(公告)日：2011-04-12

    申请号：US12317420

    申请日：2008-12-22

    Applicant: Subhabrata Sen ,  Lee Breslau ,  Nicholas Duffield ,  Yu Gu

    Inventor： Subhabrata Sen ,  Lee Breslau ,  Nicholas Duffield ,  Yu Gu

    IPC: H04J3/14 ,  H04L12/26 ,  G06F11/30

    CPC classification number: H04L43/0835 ,  H04L41/0213 ,  H04L41/142 ,  H04L41/5009 ,  H04L43/026 ,  H04L43/103 ,  Y02D50/30

    Abstract: A packet loss estimation technique is disclosed that utilizes the sampled flow level statistics that are routinely collected in operational networks, thereby obviating the need for any new router features or measurement infrastructure. The technique is specifically designed to handle the challenges of sampled flow-level aggregation such as information loss resulting from packet sampling, and generally comprises: receiving a first record of sampled packets for a flow from a first network element; receiving a second record of sampled packets for the flow from a second network element communicating with the first network element; correlating sampled packets from the flow at the first network element and the second network element to a measurement interval; and estimating the packet loss using a count of the sampled packets correlated to the measurement interval.

    Abstract translation: 公开了一种利用在操作网络中常规收集的采样流量统计信息的分组丢失估计技术，从而避免了对任何新的路由器特征或测量基础设施的需要。 该技术专门设计用于处理采样流级聚合的挑战，例如由分组采样导致的信息丢失，并且通常包括：从第一网络元件接收流的第一采样分组记录; 从与第一网络元件通信的第二网络元件接收用于流的采样分组的第二记录; 将来自第一网元和第二网元的流的采样分组相关联到测量间隔; 以及使用与测量间隔相关联的采样分组的计数来估计分组丢失。

    Method and apparatus for providing performance measurement for a network tunnel
    9.
    发明授权
    Method and apparatus for providing performance measurement for a network tunnel 有权
    为网络隧道提供性能测量的方法和装置

    公开(公告)号：US08005010B2

    公开(公告)日：2011-08-23

    申请号：US12022733

    申请日：2008-01-30

    Applicant: Lee Breslau ,  Nicholas Duffield ,  Yu Gu ,  Subhabrata Sen

    Inventor： Lee Breslau ,  Nicholas Duffield ,  Yu Gu ,  Subhabrata Sen

    IPC: H04L12/26

    CPC classification number: H04L12/4633 ,  H04L43/0864

    Abstract: A method and apparatus for providing performance measurements on network tunnels in packet networks are disclosed. For example, the method establishes two tunnels between a first measurement host and a first router, and establishes a tunnel between the first router and a second measurement host. The method also establishes a multicast group having a plurality of members, and sends one or more packets addressed to the multicast group from the first measurement host. The method measures the frequencies of directly and/or indirectly received responses from the plurality of members of the multicast group, and provides a plurality of estimated values for a plurality of packet transmission rates from measurement of the frequencies for one or more of said tunnels.

    Abstract translation: 公开了一种用于在分组网络中的网络隧道上提供性能测量的方法和装置。 例如，该方法在第一测量主机和第一路由器之间建立两个隧道，并在第一路由器和第二测量主机之间建立隧道。 该方法还建立具有多个成员的多播组，并且从第一测量主机发送寻址到多播组的一个或多个分组。 该方法测量来自多播组的多个成员的直接和/或间接接收的响应的频率，并从测量一个或多个所述隧道的频率提供多个分组传输速率的多个估计值。

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