公开(公告)号：US08446845B2

公开(公告)日：2013-05-21

申请号：US11717878

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/28 ,  G01R31/08 ,  H04B7/212

CPC分类号： H04L41/0896 ,  H04L41/12 ,  H04L47/70 ,  H04L47/822

摘要： An auditing function detects and corrects reservation and routing topology map errors by monitoring the operation of an advanced bandwidth manager (ABM). A session/call admission controller (S/CAC) attached to a network manages loading with policy enforcement points (PEP's) when the network nears or exceeds its capacity. Ever-changing network topology information is monitored, modeled, and analyzed from remote listeners. A correct model of how traffic is being routed through various parts of the network is critical to admission control. The PEP's at the network edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. The S/CAC uses the path tables to calculate whether particular PEP's can admit more traffic, or should they shed sessions/calls to keep service up for the existing application traffic. Long-term controls are periodically downloaded as admission tables from the S/CAC to the PEP's.

摘要翻译： 审计功能通过监控高级带宽管理器（ABM）的操作来检测和纠正预留和路由拓扑图错误。 当网络接近或超过其容量时，附加到网络的会话/呼叫许可控制器（S / CAC）管理负载策略执行点（PEP）。 不断变化的网络拓扑信息由远程侦听器进行监控，建模和分析。 如何将流量路由通过网络的各个部分的正确模型对于准入控制至关重要。 PEP在网络边缘提供了适用于相应网络入口流量的短期，应用感知控制。 S / CAC使用路径表来计算特定的PEP是否可以承认更多的流量，或者应该丢弃会话/呼叫来保持现有应用流量的服务。 长期控制定期从S / CAC下载到PEP。

公开(公告)号：US08320380B2

公开(公告)日：2012-11-27

申请号：US11717876

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/56

CPC分类号： H04L41/0896 ,  H04L41/12

摘要： A method for video-on-demand (VoD) admission control at a network edge assigns to a triple-play network virtual topology lesser resources than there exists in a corresponding underlying physical link bandwidth. This prevents video-on-demand (VoD) starvation of data-class traffic. At least one policy enforcement point (PEP) is attached to an edge of the network, providing for autonomous short-term, application-aware controls to be applied to corresponding network ingress traffic, and also providing for long-term controls on corresponding network ingress traffic. The network ingress traffic to the network comes under management when the traffic nears or exceeds network capacity. It is enabled to do so by computations of current network routing topology and bandwidth reservations. Path tables are used to calculate if a PEP may admit more, or must shed, sessions/calls to maintain service for other existing application traffic. The PEP and a session/call admission controller (S/CAC) may be independently located within the topology of the network, and together implement admission controls that differentiate between triple-play video, voice, and data traffic classes.

摘要翻译： 在网络边缘处的视频点播（VoD）准入控制的方法将分配给三重播放网络虚拟拓扑结构比存在于相应底层物理链路带宽中的资源较少。 这可以防止视频点播（VoD）数据流量的饥饿。 至少一个策略执行点（PEP）被附加到网络的边缘，提供自主的短期的，应用感知的控制以应用于相应的网络入口流量，并且还提供对相应的网络入口的长期控制 交通。 当流量接近或超过网络容量时，网络对网络的流量进行管理。 可以通过计算当前网络路由拓扑和带宽预留来实现。 路径表用于计算PEP是否可以承认更多的会话或呼叫，以便维护其他现有应用流量的服务。 PEP和会话/呼叫准入控制器（S / CAC）可以独立地位于网络的拓扑内，并且一起实现区分三重播放视频，语音和数据业务类别的接纳控制。

公开(公告)号：US20080225857A1

公开(公告)日：2008-09-18

申请号：US11717877

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/56

CPC分类号： H04L47/805 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/70 ,  H04L47/762

摘要： A policy enforcement point (PEP) attaches to the edge of a packet-switched network to manage loading when the network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. Autonomous PEP's at the network's edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. Changes become necessary when a network event results in a loss of resilient bandwidth that effects the traffic class under admission control. Or, when an unexpected surge in traffic exceeds the PEP's reserved resources to a particular destination. The resources available across the network are recalculated for minimizing impact on existing sessions or calls, and it informs the PEP's of the new resources available. If the new maximum exceeds the current utilization to that destination, the PEP invokes a local priority drop mechanism to back off the traffic until it is under the new limit. A media gateway handling voice calls can keep all emergency calls up, and then invoke a local algorithm, such as random drop, for the remaining calls until calls to the constrained destination are under the new limit. In the second case, where there is an unexpected surge in demand, the PEP can request from the bandwidth manager additional resources to a particular destination.

摘要翻译： 当网络接近或超过其容量（例如组件故障或增量增长）时，策略执行点（PEP）附加到分组交换网络的边缘以管理负载。 自主性PEP在网络边缘提供了自己应用于相应网络入口流量的短期，应用感知控制。 当网络事件导致弹性带宽的损失影响入门控制下的流量级别时，变化就变得必要。 或者，如果流量意外激增超过了PEP对特定目的地的预留资源。 重新计算网络上可用的资源，以最大限度地减少对现有会话或呼叫的影响，并向PEP通知可用的新资源。 如果新的最大值超过了目的地的当前利用率，则PEP将调用本地优先级丢弃机制来备份流量，直到其达到新限制。 处理语音呼叫的媒体网关可以保持所有紧急呼叫，然后调用剩余呼叫的本地算法，如随机丢弃，直到对受限目的地的呼叫处于新的限制。 在第二种情况下，如果需求出现意外激增，则PEP可以从带宽管理器向特定目的地请求附加资源。

公开(公告)号：US08374082B2

公开(公告)日：2013-02-12

申请号：US11717881

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： G01R31/08 ,  H04L12/28 ,  H04B7/212

CPC分类号： H04L47/20 ,  H04L45/302 ,  H04L45/50 ,  H04L47/10 ,  H04L47/15 ,  H04L47/2408 ,  H04L47/70 ,  H04L47/724 ,  H04L47/745 ,  H04L47/746 ,  H04L47/748 ,  H04L47/762 ,  H04L47/782 ,  H04L47/822 ,  H04L47/829 ,  H04L67/14

摘要： An advanced bandwidth manager (ABM) comprises a session/call admission controller (S/CAC) to manage network ingress traffic when a packet-switched network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. Ever-changing network topology information is gathered from remote listeners about how traffic is being routed through various parts of the network. These reports are harmonized to build a single view of the network topology, and the point-to-point connections are abstracted into path tables. Autonomous policy enforcement points (PEP's) provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. The S/CAC uses the path tables constructed to calculate whether the PEP's can admit more or should shed sessions/calls to keep service up for all existing application traffic. Long-term controls are periodically downloaded as admission tables from the S/CAC to the PEP's.

摘要翻译： 高级带宽管理器（ABM）包括会话/呼叫许可控制器（S / CAC），用于当分组交换网络由于网络变化而接近或超过其容量时，例如组件故障或增量增长来管理网络入口业务。 从远程侦听器收集不断变化的网络拓扑信息，了解流量如何通过网络的各个部分进行路由。 协调这些报告以构建网络拓扑的单一视图，并将点对点连接抽象为路径表。 自主策略执行点（PEP）自行提供适用于相应网络入口流量的短期，应用感知控制。 S / CAC使用构建的路径表来计算PEP是否可以承认更多的应用或应该丢弃会话/呼叫来保持所有现有应用流量的服务。 长期控制定期从S / CAC下载到PEP。

公开(公告)号：US08274983B2

公开(公告)日：2012-09-25

申请号：US11717877

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/56

CPC分类号： H04L47/805 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/70 ,  H04L47/762

摘要： A policy enforcement point (PEP) attaches to the edge of a packet-switched network to manage loading when the network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. Autonomous PEP's at the network's edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. Changes become necessary when a network event results in a loss of resilient bandwidth that effects the traffic class under admission control. Or, when an unexpected surge in traffic exceeds the PEP's reserved resources to a particular destination. The resources available across the network are recalculated for minimizing impact on existing sessions or calls, and it informs the PEP's of the new resources available. If the new maximum exceeds the current utilization to that destination, the PEP invokes a local priority drop mechanism to back off the traffic until it is under the new limit. A media gateway handling voice calls can keep all emergency calls up, and then invoke a local algorithm, such as random drop, for the remaining calls until calls to the constrained destination are under the new limit. In the second case, where there is an unexpected surge in demand, the PEP can request from the bandwidth manager additional resources to a particular destination.

摘要翻译： 当网络接近或超过其容量（例如组件故障或增量增长）时，策略执行点（PEP）附加到分组交换网络的边缘以管理负载。 自主性PEP在网络边缘提供了自己应用于相应网络入口流量的短期，应用感知控制。 当网络事件导致弹性带宽的损失影响入门控制下的流量级别时，变化就变得必要。 或者，如果流量意外激增超过了PEP对特定目的地的预留资源。 重新计算网络中可用的资源，以最大限度地减少对现有会话或呼叫的影响，并向PEP通知可用的新资源。 如果新的最大值超过了目的地的当前利用率，则PEP将调用本地优先级丢弃机制来备份流量，直到其达到新限制。 处理语音呼叫的媒体网关可以保持所有紧急呼叫，然后调用剩余呼叫的本地算法，如随机丢弃，直到对受限目的地的呼叫处于新的限制。 在第二种情况下，如果需求出现意外激增，则PEP可以从带宽管理器向特定目的地请求附加资源。

公开(公告)号：US20100302973A1

公开(公告)日：2010-12-02

申请号：US12457047

申请日：2009-05-29

申请人： Andrew S. Lange ,  L. Michele Goodwin

发明人： Andrew S. Lange ,  L. Michele Goodwin

IPC分类号： H04L12/28

CPC分类号： H04L12/4641

摘要： Example embodiments are directed to methods of configuring a virtual private local area network service for an enterprise. At least one method includes assigning a virtual private local area network instance to a first node within a network. A first node attempts to establish a label distribution protocol session between the first node and at least one other node within the network based on an interior gateway protocol map. The interior gateway protocol map identifies the at least one other node and nodes connected to the at least one other node. The virtual private local area network service is established based on the label distribution protocol sessions that are established.

摘要翻译： 示例性实施例涉及为企业配置虚拟专用局域网服务的方法。 至少一种方法包括将虚拟专用局域网实例分配给网络内的第一节点。 第一节点尝试基于内部网关协议图在第一节点和网络中的至少一个其他节点之间建立标签分发协议会话。 内部网关协议图识别至少一个其他节点和连接到该至少一个其他节点的节点。 基于建立的标签分发协议会话建立虚拟专用局域网服务。

公开(公告)号：US08385194B2

公开(公告)日：2013-02-26

申请号：US11717909

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： G01R31/08 ,  H04L12/28 ,  H04B7/212

CPC分类号： H04L69/40 ,  H04L41/0896 ,  H04L41/12 ,  H04L43/0882 ,  H04L47/11 ,  H04L47/70 ,  H04L47/781 ,  H04L47/805 ,  H04L47/824

摘要： A network includes an advanced bandwidth manager (ABM) to manage loading when a network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. The ABM gathers strategic information from remote listeners about how traffic is being routed over the whole network, and is abstracted into point-to-point tables. The information gathered also helps to provide long term service planning. Autonomous policy enforcement points (PEP's) provide short term controls on their own. Intelligent action can be taken by the ABM through the PEP's by downloading admission tables based in the point-to-point abstractions. The goal is to keep the highest level of service up for the most users and prevent total failures. Requested network connections are either admitted or denied to these ends.

摘要翻译： 网络包括高级带宽管理器（ABM），用于在网络接近或超过其容量（例如，组件故障或增量增长）时管理负载。 ABM从远程侦听器收集关于流量如何在整个网络上路由的战略信息，并被抽象为点对点表。 收集的信息也有助于提供长期的服务规划。 自治政策执行点（PEP）自行提供短期管理。 智能动作可以由ABM通过PEP通过下载基于点对点抽样的接收表进行。 目标是为大多数用户保持最高级别的服务，并防止完全失败。 要求的网络连接在这些目的被允许或被拒绝。

公开(公告)号：US20080225712A1

公开(公告)日：2008-09-18

申请号：US11717880

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04J3/14

CPC分类号： H04L47/782 ,  H04L47/70 ,  H04L47/722

摘要： A policy enforcement point (PEP) attaches to the edge of a network to manage loading when the network nears or exceeds its capacity due to changes in the network, e.g., component failures or incremental growth. Autonomous PEP's at the network's edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. Path tables are used to calculate whether particular PEP's can admit more traffic, or should they shed sessions/calls to keep service up for the existing application traffic. Long-term controls are periodically downloaded as admission tables from a session/call admission controller to the PEP's.

摘要翻译： 当网络接近或超过其容量（例如，组件故障或增量增长）时，策略执行点（PEP）附加到网络的边缘来管理加载。 自主性PEP在网络边缘提供了自己应用于相应网络入口流量的短期，应用感知控制。 路径表用于计算特定的PEP是否可以承认更多流量，或者是否应该进行会话/呼叫来保持现有应用流量的服务。 长期控制定期从会议/呼叫准入控制器下载到PEP。

公开(公告)号：US20080225707A1

公开(公告)日：2008-09-18

申请号：US11717878

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/28 ,  H04L12/26

CPC分类号： H04L41/0896 ,  H04L41/12 ,  H04L47/70 ,  H04L47/822

摘要： An auditing function detects and corrects reservation and routing topology map errors by monitoring the operation of an advanced bandwidth manager (ABM). A session/call admission controller (S/CAC) attached to a network manages loading with policy enforcement points (PEP's) when the network nears or exceeds its capacity. Ever-changing network topology information is monitored, modeled, and analyzed from remote listeners. A correct model of how traffic is being routed through various parts of the network is critical to admission control. The PEP's at the network edges provide short-term, application-aware controls on their own that are applied to the corresponding network ingress traffic. The S/CAC uses the path tables to calculate whether particular PEP's can admit more traffic, or should they shed sessions/calls to keep service up for the existing application traffic. Long-term controls are periodically downloaded as admission tables from the S/CAC to the PEP's.

摘要翻译： 审计功能通过监控高级带宽管理器（ABM）的操作来检测和纠正预留和路由拓扑图错误。 当网络接近或超过其容量时，附加到网络的会话/呼叫许可控制器（S / CAC）管理负载策略执行点（PEP）。 不断变化的网络拓扑信息由远程侦听器进行监控，建模和分析。 如何将流量路由通过网络的各个部分的正确模型对于准入控制至关重要。 PEP在网络边缘提供了适用于相应网络入口流量的短期，应用感知控制。 S / CAC使用路径表来计算特定的PEP是否可以承认更多的流量，或者应该丢弃会话/呼叫来保持现有应用流量的服务。 长期控制定期从S / CAC下载到PEP。

公开(公告)号：US20080225706A1

公开(公告)日：2008-09-18

申请号：US11717876

申请日：2007-03-13

申请人： Andrew S. Lange

发明人： Andrew S. Lange

IPC分类号： H04L12/26

CPC分类号： H04L41/0896 ,  H04L41/12

摘要： A method for video-on-demand (VoD) admission control at a network edge assigns to a triple-play network virtual topology lesser resources than there exists in a corresponding underlying physical link bandwidth. This prevents video-on-demand (VoD) starvation of data-class traffic. At least one policy enforcement point (PEP) is attached to an edge of the network, providing for autonomous short-term, application-aware controls to be applied to corresponding network ingress traffic, and also providing for long-term controls on corresponding network ingress traffic. The network ingress traffic to the network comes under management when the traffic nears or exceeds network capacity. It is enabled to do so by computations of current network routing topology and bandwidth reservations. Path tables are used to calculate if a PEP may admit more, or must shed, sessions/calls to maintain service for other existing application traffic. The PEP and a session/call admission controller (S/CAC) may be independently located within the topology of the network, and together implement admission controls that differentiate between triple-play video, voice, and data traffic classes.

摘要翻译： 在网络边缘处的视频点播（VoD）准入控制的方法将分配给三重播放网络虚拟拓扑结构比存在于相应底层物理链路带宽中的资源较少。 这可以防止视频点播（VoD）数据流量的饥饿。 至少一个策略执行点（PEP）被附加到网络的边缘，提供自主的短期的，应用感知的控制以应用于相应的网络入口流量，并且还提供对相应的网络入口的长期控制 交通。 当流量接近或超过网络容量时，网络对网络的流量进行管理。 可以通过计算当前网络路由拓扑和带宽预留来实现。 路径表用于计算PEP是否可以承认更多的会话或呼叫，以便维护其他现有应用流量的服务。 PEP和会话/呼叫准入控制器（S / CAC）可以独立地位于网络的拓扑内，并且一起实现区分三重播放视频，语音和数据业务类别的接纳控制。