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    Method and apparatus for communications traffic engineering
    1.
    发明授权
    Method and apparatus for communications traffic engineering 失效
    通信流量工程的方法和装置

    公开(公告)号：US07948899B2

    公开(公告)日：2011-05-24

    申请号：US12635905

    申请日：2009-12-11

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    IPC分类号： H04L12/56 ,  G06F15/173

    CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L47/10 ,  H04L47/122

    摘要： This invention provides for a technique for selectively off-loading traffic from congested sub-regions of a network to more lightly-loaded regions by making use of Multiprotocol Label Switching (MPLS). For each network element, an Interior Gateway Protocol (IGP) routing is employed to provide re-routing and to identify congested links caused by re-routed trunks for each single failure. The re-routed traffic is then analyzed and alternate Label Switched Paths (LSPs) are identified for such traffic trunks so that the traffic is directed to the alternate LSPs during the single failure event.

    摘要翻译： 本发明提供一种用于通过利用多协议标签交换（MPLS）来将流量从网络的拥塞子区域选择性地卸载到更轻量化区域的技术。 对于每个网络元件，采用内部网关协议（IGP）路由来提供重新路由并且识别由每个单个故障的重新路由干线引起的拥塞链路。 然后分析重新路由的流量，并为这种流量中继标识替代的标签交换路径（LSP），以便在单个故障事件期间将流量定向到备用LSP。

    Method and apparatus for communications traffic engineering
    4.
    发明授权
    Method and apparatus for communications traffic engineering 失效
    通信流量工程的方法和装置

    公开(公告)号：US07778182B2

    公开(公告)日：2010-08-17

    申请号：US11212945

    申请日：2005-08-26

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    IPC分类号： G01R31/08 ,  G06F15/173

    CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L47/10 ,  H04L47/122

    摘要： This invention provides for a technique for selectively off-loading traffic from congested sub-regions of a network to more lightly-loaded regions by making use of Multiprotocol Label Switching (MPLS). For each network element, an Interior Gateway Protocol (IGP) routing is employed to provide re-routing and to identify congested links caused by re-routed trunks for each single failure. The re-routed traffic is then analyzed and alternate Label Switched Paths (LSPs) are identified for such traffic trunks so that the traffic is directed to the alternate LSPs during the single failure event.

    摘要翻译： 本发明提供一种用于通过利用多协议标签交换（MPLS）来将流量从网络的拥塞子区域选择性地卸载到更轻量化区域的技术。 对于每个网络元件，采用内部网关协议（IGP）路由来提供重新路由并且识别由每个单个故障的重新路由干线引起的拥塞链路。 然后分析重新路由的流量，并为这种流量中继标识替代的标签交换路径（LSP），以便在单个故障事件期间将流量定向到备用LSP。

    Method and apparatus for communications traffic engineering
    5.
    发明授权
    Method and apparatus for communications traffic engineering 失效
    通信流量工程的方法和装置

    公开(公告)号：US07230924B2

    公开(公告)日：2007-06-12

    申请号：US09819555

    申请日：2001-03-28

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    IPC分类号： H04L12/26

    CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L47/10 ,  H04L47/122

    摘要： This invention provides for a technique for selectively off-loading traffic from congested sub-regions of a network to more lightly-loaded regions by making use of Multiprotocol Label Switching (MPLS). For each network element, an Interior Gateway Protocol (IGP) routing is employed to provide re-routing and to identify congested links caused by re-routed trunks for each single failure. The re-routed traffic is then analyzed and alternate Label Switched Paths (LSPs) are identified for such traffic trunks so that the traffic is directed to the alternate LSPs during the single failure event.

    摘要翻译： 本发明提供一种用于通过利用多协议标签交换（MPLS）来将流量从网络的拥塞子区域选择性地卸载到更轻量化区域的技术。 对于每个网络元件，采用内部网关协议（IGP）路由来提供重新路由并且识别由每个单个故障的重新路由干线引起的拥塞链路。 然后分析重新路由的流量，并为这种流量中继标识替代的标签交换路径（LSP），以便在单个故障事件期间将流量定向到备用LSP。

    Method and apparatus for an architecture and design of internet protocol quality of service provisioning
    7.
    发明授权
    Method and apparatus for an architecture and design of internet protocol quality of service provisioning 有权
    用于架构和设计互联网协议服务质量服务提供的方法和装置

    公开(公告)号：US06999420B1

    公开(公告)日：2006-02-14

    申请号：US09476309

    申请日：1999-12-30

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Albert Gordon Greenberg ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Albert Gordon Greenberg ,  Zhuangbo Tang

    IPC分类号： H04L12/54

    CPC分类号： H04L47/10 ,  H04L47/11 ,  H04L47/12 ,  H04L47/20 ,  H04L47/22 ,  H04L47/2408 ,  H04L47/2416 ,  H04L47/326 ,  H04L47/623

    摘要： An architecture, design, and realization for providing Quality of Service (QoS) to Internet Protocol (IP) networks based on a three-class differentiated service scheme where the service provider uses a resource management system and a schedule optimizer to enable the optimal use of bandwidth and buffer resources at each node along the various links between the ingress and egress points in a network. The resource reservation system checks to determine whether sufficient bandwidth resources are available along the path requested by the customer for a particular class. The schedule optimizer ensures that sufficient buffer resource allocations and parameter settings are made to optimally reach the predetermined QoS criteria for each of the three classes. The system also contains a mechanism supporting resource reservations providing additional resources along alternative paths if the selected path links fail in the network.

    摘要翻译： 一种基于三类差异化服务方案为服务提供商使用资源管理系统和时间表优化器提供服务质量（QoS）的互联网协议（IP）网络的架构，设计和实现，以实现最佳使用 沿着网络中入口和出口点之间的各种链路的每个节点的带宽和缓冲器资源。 资源预留系统检查以确定沿着客户为特定类请求的路径是否有足够的带宽资源可用。 调度优化器确保了足够的缓冲区资源分配和参数设置，以最佳地达到三个类别中的每一个的预定QoS标准。 如果所选择的路径链路在网络中失败，则该系统还包含支持资源预留的机制，其沿备选路径提供附加资源。

    Method and apparatus for provisioning and monitoring internet protocol quality of service
    8.
    发明授权
    Method and apparatus for provisioning and monitoring internet protocol quality of service 失效
    提供和监控互联网协议服务质量的方法和装置

    公开(公告)号：US06744767B1

    公开(公告)日：2004-06-01

    申请号：US09475512

    申请日：1999-12-30

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Albert Gordon Greenberg ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Albert Gordon Greenberg ,  Zhuangbo Tang

    IPC分类号： H04L1254

    CPC分类号： H04L47/10 ,  H04L45/123 ,  H04L45/22 ,  H04L45/30 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/29 ,  H04L47/30 ,  H04L47/326 ,  H04L47/50 ,  H04L47/521 ,  H04L47/6225 ,  H04L47/6265 ,  H04L47/70 ,  H04L47/724 ,  H04L47/728 ,  H04L47/765 ,  H04L47/801 ,  H04L47/805 ,  H04L47/808 ,  H04L47/822 ,  H04L47/825

    摘要： An architecture, design, and realization for providing Quality of Service (QoS) to Internet Protocol (IP) networks based on a three-class differentiated service scheme where the service provider uses a resource management system and a schedule optimizer to enable the optimal use of bandwidth and buffer resources at each node or router along the various links between the ingress and egress points in a network. The resource reservation system checks to determine if sufficient bandwidth resources are available along the path requested by the customer for a particular class. The schedule optimizer ensures that sufficient buffer resource allocations and parameter settings are made to optimally reach the predetermined QoS criteria for each of the three classes. The system also contains a mechanism supporting resource reservations providing additional resources along alternative paths if the selected path links fail in the network.

    摘要翻译： 一种基于三类差异化服务方案为服务提供商使用资源管理系统和时间表优化器提供服务质量（QoS）的互联网协议（IP）网络的架构，设计和实现，以实现最佳使用 沿着网络中入口和出口点之间的各种链路的每个节点或路由器的带宽和缓冲器资源。 资源预留系统检查以确定沿着客户为特定类请求的路径是否有足够的带宽资源可用。 调度优化器确保了足够的缓冲区资源分配和参数设置，以最佳地达到三个类别中的每一个的预定QoS标准。 如果所选择的路径链路在网络中失败，则该系统还包含支持资源预留的机制，其沿备选路径提供附加资源。

    Method and Apparatus for Communications Traffic Engineering
    9.
    发明申请
    Method and Apparatus for Communications Traffic Engineering 失效
    通信流量工程方法与装置

    公开(公告)号：US20100091656A1

    公开(公告)日：2010-04-15

    申请号：US12635905

    申请日：2009-12-11

    申请人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    发明人： Angela L. Chiu ,  Seyhan Civanlar ,  Leonard L. Lu ,  Zhuangbo Tang

    IPC分类号： H04L12/56

    CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L47/10 ,  H04L47/122

    摘要： This invention provides for a technique for selectively off-loading traffic from congested sub-regions of a network to more lightly-loaded regions by making use of Multiprotocol Label Switching (MPLS). For each network element, an Interior Gateway Protocol (IGP) routing is employed to provide re-routing and to identify congested links caused by re-routed trunks for each single failure. The re-routed traffic is then analyzed and alternate Label Switched Paths (LSPs) are identified for such traffic trunks so that the traffic is directed to the alternate LSPs during the single failure event.

    摘要翻译： 本发明提供一种用于通过利用多协议标签交换（MPLS）来将流量从网络的拥塞子区域选择性地卸载到更轻量化区域的技术。 对于每个网络元件，采用内部网关协议（IGP）路由来提供重新路由并且识别由每个单个故障的重新路由干线引起的拥塞链路。 然后分析重新路由的流量，并为这种流量中继标识替代的标签交换路径（LSP），以便在单个故障事件期间将流量定向到备用LSP。

    Method and system for dynamically triggering flow-based quality of service shortcuts through a router
    10.
    发明授权
    Method and system for dynamically triggering flow-based quality of service shortcuts through a router 有权
    通过路由器动态触发基于流速的服务质量快捷方式的方法和系统

    公开(公告)号：US06385170B1

    公开(公告)日：2002-05-07

    申请号：US09221853

    申请日：1998-12-29

    申请人： Angela L. Chiu ,  Xiaowen Mang

    发明人： Angela L. Chiu ,  Xiaowen Mang

    IPC分类号： G01R3108

    CPC分类号： H04L45/302 ,  H04L45/00 ,  H04L45/22 ,  H04L45/50

    摘要： A method and system for dynamically triggering flow-based quality of service shortcuts through a router is disclosed. The method further includes the steps of receiving a data packet at a router, determining whether a shortcut has been set up for a data flow to which said packet belongs, checking the status of an onset trigger counter when no shortcut exists, and when a current value of said onset trigger exceeds an onset trigger value, setting up a new shortcut for said data packet belonging to said data flow. The method of the present invention includes a dynamic system for adjusting state variable to control the number of shortcuts in existence and the adjusting the shortcut set up rate for optimal router switching efficiency.

    摘要翻译： 公开了一种通过路由器动态触发基于流速的服务质量快捷方式的方法和系统。 该方法还包括以下步骤：在路由器处接收数据包，确定是否为所述分组所属的数据流设置了快捷方式，当没有快捷方式时检查起始触发计数器的状态，以及当目前为止 所述开始触发的值超过起始触发值，为属于所述数据流的所述数据分组建立新的快捷方式。 本发明的方法包括用于调整状态变量以控制存在的快捷方式的动态系统，以及调整快捷方式设置速率以获得最佳的路由器切换效率。