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    Virtual private network
    5.
    发明授权
    Virtual private network 有权
    虚拟专网

    公开(公告)号：US07197048B1

    公开(公告)日：2007-03-27

    申请号：US10875042

    申请日：2004-06-23

    申请人： Nicholas G. Duffield ,  Albert G. Greenberg ,  Pawan Goyal ,  Partho P. Mishra ,  Kadangode K. Ramakrishnan ,  Jacobus Frasmus van der Merwe

    发明人： Nicholas G. Duffield ,  Albert G. Greenberg ,  Pawan Goyal ,  Partho P. Mishra ,  Kadangode K. Ramakrishnan ,  Jacobus Frasmus van der Merwe

    IPC分类号： H04J3/16 ,  H04J3/22

    CPC分类号： H04L12/4641 ,  H04L45/00 ,  H04L45/28 ,  H04L45/48

    摘要： The invention provides apparatus and methods for a Virtual Private Network (VPN) in a network that offers a simple user interface for efficient utilization of network resources. The VPN is defined for a specified set of endpoints each of which is associated with a single “hose.” A hose provides access to the VPN through an access point which may be a node of the network, for example. The hose is a single interface to the VPN for communication to all other endpoints of the VPN. The VPN achieves network resource allocation efficiency by exploiting resource sharing possibilities via multiplexing routing paths between endpoints and dynamic resource allocation techniques that permit real time resource allocation resizing. When a VPN is established with a VPN service provider, the routing paths between the endpoints of the VPN is optimized for multiplexing opportunities so that resource allocations between nodes along routing paths within the IP network is reduced to a minimum.

    摘要翻译： 本发明提供一种用于网络中的虚拟专用网（VPN）的装置和方法，其提供用于有效利用网络资源的简单用户界面。 VPN针对指定的一组端点定义，每个端点与单个“软管”相关联。 例如，软管通过可能是网络节点的接入点提供对VPN的访问。 软管是VPN的单一接口，用于与VPN的所有其他端点进行通信。 VPN通过在端点之间复用路由路径和允许实时资源分配调整大小的动态资源分配技术之间利用资源共享的可能性来实现网络资源分配效率。 当与VPN服务提供商建立VPN时，VPN的端点之间的路由路径被优化用于复用机会，使得沿着IP网络内的路由路径的节点之间的资源分配被减少到最小。

    Statistical, Signature-Based Approach to IP Traffic Classification
    6.
    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

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

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

    IPC分类号： H04L12/26 ,  H04L12/56

    CPC分类号： H04L41/5022 ,  H04L41/142

    摘要： 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.

    摘要翻译： 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。

    Statistical, signature-based approach to IP traffic classification
    7.
    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

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

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

    IPC分类号： H04L12/28

    CPC分类号： H04L41/5022 ,  H04L41/142

    摘要： 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.

    摘要翻译： 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
    8.
    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

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

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

    IPC分类号： H04L12/26

    CPC分类号： H04L41/5022 ,  H04L41/142

    摘要： 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.

    摘要翻译： 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。

    Fair queuing system with adaptive bandwidth redistribution
    9.
    发明授权
    Fair queuing system with adaptive bandwidth redistribution 失效
    公平排队系统具有自适应带宽再分配

    公开(公告)号：US06452933B1

    公开(公告)日：2002-09-17

    申请号：US08972424

    申请日：1997-11-18

    申请人： Nicholas G. Duffield ,  Tirunell V. Lakshman ,  Dimitrios Stiliadis

    发明人： Nicholas G. Duffield ,  Tirunell V. Lakshman ,  Dimitrios Stiliadis

    IPC分类号： H04J316

    CPC分类号： H04L47/525 ,  H04L12/5602 ,  H04L47/10 ,  H04L47/50 ,  H04L47/521 ,  H04L47/621 ,  H04L47/623 ,  H04L49/9078 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04Q11/0478

    摘要： Apparatus for routing packets in a communication network comprises a plurality of per-connection queues, each queue established for receiving packets from a respective source and temporarily storing received packets before routing to a particular destination; a weighted fair-queuing scheduler for servicing packets from each of the plurality of per-connection queues at guaranteed pre-allocated rates; a sensing device for sensing a presence or absence of packets in queues, the absence of packets in queues indicating availability of excess bandwidth; and, a state dependent scheduler for redistributing excess bandwidth upon sensing of queues absent packets, the state dependent scheduler servicing those queues in accordance with a state variable corresponding to a performance property of the queues, wherein delay and isolation properties for routing packets of respective queues in weighted fair-queuing is preserved.

    摘要翻译： 用于在通信网络中路由分组的装置包括多个每连接队列，每个队列被建立用于从相应源接收分组，并且在路由到特定目的地之前临时存储接收的分组; 加权公平排队调度器，用于以保证的预分配速率来处理来自所述多个每连接队列中的每一个的分组; 用于感测队列中的分组的存在或不存在的感测装置，指示队列中的分组指示超出带宽的可用性; 以及用于在感知到不存在分组的队列时重新分配多余带宽的状态依赖调度器，所述状态依赖调度器根据与队列的性能属性对应的状态变量来服务于那些队列，其中用于路由各队列的分组的延迟和隔离属性 在加权公平排队中得到保留。