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11. 发明申请

US20090135793A1 METHOD AND APPARATUS FOR MANAGING AN IP ADDRESS SPACE OF AN ADDRESS SERVER IN A MOBILITY NETWORK 有权
标题翻译：用于在移动网络中管理地址服务器的IP地址空间的方法和装置
公开(公告)号：US20090135793A1
公开(公告)日：2009-05-28
申请号：US11946396
申请日：2007-11-28
申请人： Thyagarajan Nandagopal , Thomas Y. Woo
发明人： Thyagarajan Nandagopal , Thomas Y. Woo
IPC分类号： H04Q7/20 , H04L12/56
CPC分类号： H04L29/12311 , H04L61/2084 , H04L67/303 , H04L69/28 , H04W8/26
摘要： The invention manages an IP address space in a mobility network, including partitioning of the IP address space, assignment of IP addresses from the IP address space, and/or use of hysteresis to control reassignment of IP addresses from the IP address space. The IP address assignment is performed using one or more residual time statistics from a residual time profile maintained for the mobile node requesting assignment of an IP address. A residual time profile of a mobile node includes one or more residual time statistics associated with the mobile node. The residual time statistics for a mobile node are determined using a residual time associated with each IP address assigned to the mobile node. The IP address space partitioning is performed using residual time statistics maintained for mobile nodes of the network. The reassignment of IP addresses from the IP address space is controlled using hysteresis.
摘要翻译：本发明管理移动网络中的IP地址空间，包括分配IP地址空间，从IP地址空间分配IP地址和/或使用滞后来控制IP地址从IP地址空间的重新分配。 IP地址分配是使用一个或多个剩余时间统计来执行的，该剩余时间统计信息是为移动节点维护的，用于请求分配IP地址的剩余时间分布。移动节点的剩余时间简档包括与移动节点相关联的一个或多个剩余时间统计。使用与分配给移动节点的每个IP地址相关联的剩余时间来确定移动节点的剩余时间统计。使用为网络的移动节点维护的剩余时间统计来执行IP地址空间划分。从IP地址空间重新分配IP地址是通过滞后来控制的。

12. 发明申请

US20090089793A1 Method and Apparatus for Performing Load Balancing for a Control Plane of a Mobile Communication Network 有权
标题翻译：用于对移动通信网络的控制平面执行负载平衡的方法和装置
公开(公告)号：US20090089793A1
公开(公告)日：2009-04-02
申请号：US11863497
申请日：2007-09-28
申请人： Thyagarajan Nandagopal , Thomas Y. Woo
发明人： Thyagarajan Nandagopal , Thomas Y. Woo
IPC分类号： G06F9/46
CPC分类号： H04L67/1008 , H04L45/00 , H04L47/10 , H04L47/125 , H04L47/14 , H04L67/1002 , H04L67/1019 , H04L67/1023 , H04W8/12 , H04W80/04
摘要： The invention includes a method and apparatus for providing load balancing of control traffic received by a mobility home agent implemented using multiple control elements. A method includes receiving, from a node, a control message intended for the network element, performing a load-balancing operation to select one of the control elements to handle the control message, and propagating the control message toward the selected one of the control elements. The load-balancing operation is performed using at least two load-balancing metrics comprising a first metric and a second metric. The load-balancing operation is performed in a manner for maintaining a context between the node from which the control message is received and the selected one of the control elements, such that subsequent control messages received from the node are propagated to the selected one of the control elements.
摘要翻译：本发明包括一种用于提供由使用多个控制元件实现的移动性归属代理接收的控制业务的负载平衡的方法和装置。一种方法包括：从节点接收预定用于网络元件的控制消息，执行负载平衡操作以选择一个控制元件来处理控制消息，以及将所述控制消息传播到所选择的一个控制元件。使用至少两个包括第一度量和第二度量的负载均衡度量来执行负载平衡操作。负载均衡操作以维持接收到控制消息的节点与所选择的控制元素之间的上下文的方式执行，使得从节点接收的后续控制消息被传播到所选择的一个控制元素。

13. 发明授权

US09100266B2 SoftRouter protocol failovers 有权
标题翻译： SoftRouter协议故障转移
公开(公告)号：US09100266B2
公开(公告)日：2015-08-04
申请号：US11147665
申请日：2005-06-08
申请人： Furquan Ahmed Ansari , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
发明人： Furquan Ahmed Ansari , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
IPC分类号： H04L12/701 , H04L12/70
CPC分类号： H04L45/00 , H04L2012/5627
摘要： The SoftRouter architecture separates the implementation of control plane functions from packet forwarding functions. In this architecture, all control plane functions are implemented on general purpose servers called the control elements (CEs) that may be multiple hops away from the forwarding elements (FEs). A network element (NE) or a router is formed using dynamic binding between the CEs and the FEs. There is a protocol failover mechanism for handling failovers initiated by FEs to transfer control from one CE to another CE.
摘要翻译： SoftRouter架构将控制平面功能的实现与数据包转发功能分开。在这种架构中，所有控制平面功能都在通用服务器上实现，称为可能与转发元件（FE）之间多跳的控制元件（CE）。使用CE和FE之间的动态绑定形成网元（NE）或路由器。有一个协议故障转移机制，用于处理FE发起的故障转移，将控制从一个CE传输到另一个CE。

14. 发明授权

US08542602B2 Apparatus and method for a multi-level enmeshed policer 失效
标题翻译：一种多级联合调节器的装置和方法
公开(公告)号：US08542602B2
公开(公告)日：2013-09-24
申请号：US12317807
申请日：2008-12-30
申请人： Thyagarajan Nandagopal , Thomas Y Woo
发明人： Thyagarajan Nandagopal , Thomas Y Woo
IPC分类号： H04J1/16
CPC分类号： H04L47/10 , H04L47/20 , H04L47/50 , H04L47/60 , H04L47/621 , H04L49/901
摘要： An enmeshed hierarchy of policers, different from traditional tree-based hierarchical system of policers is used in accordance with the present invention. A goal of using an enmeshed architecture of policing systems is to allow for a more complex set of policies to be defined across a network. Hierarchical/cascading systems ensure that the higher granularity assignments essentially dictate/constrain the behavior of finer grained assignments at higher levels for sub-flows. There is only one type of metric possible for the largest granular policer, so the only way to implement multiple system-wide metrics is to repeat the hierarchy multiple times over, which adds to the delay of the packet and the complexity of the router. In accordance with the enmeshed architecture of the present invention, multiple system-wide metrics can be implemented simultaneously, which allows for easier management of the various macro-level policies by the manager of an access network.
摘要翻译：根据本发明使用与传统的基于树的分层系统不同的策略层级的层次结构。使用网络管理系统架构的目标是允许在整个网络中定义更复杂的策略集。分级/级联系统确保较高的粒度分配基本上决定/限制较高级别的子流程中更细粒度分配的行为。对于最大的粒度监控器只能有一种类型的度量，因此实现多个系统级度量的唯一方法是多次重复层次结构，这增加了数据包的延迟和路由器的复杂性。根据本发明的嵌套体系结构，可以同时实现多个系统范围的度量，这允许由接入网络的管理者更容易地管理各种宏观级策略。

15. 发明授权

US08488571B2 Method and apparatus for managing an IP address space of an address server in a mobility network 有权
标题翻译：用于管理移动网络中的地址服务器的IP地址空间的方法和装置
公开(公告)号：US08488571B2
公开(公告)日：2013-07-16
申请号：US11946396
申请日：2007-11-28
申请人： Thyagarajan Nandagopal , Thomas Y. Woo
发明人： Thyagarajan Nandagopal , Thomas Y. Woo
IPC分类号： H04Q7/20 , H04L12/56
CPC分类号： H04L29/12311 , H04L61/2084 , H04L67/303 , H04L69/28 , H04W8/26
摘要： The invention manages an IP address space in a mobility network, including partitioning of the IP address space, assignment of IP addresses from the IP address space, and/or use of hysteresis to control reassignment of IP addresses from the IP address space. The IP address assignment is performed using one or more residual time statistics from a residual time profile maintained for the mobile node requesting assignment of an IP address. A residual time profile of a mobile node includes one or more residual time statistics associated with the mobile node. The residual time statistics for a mobile node are determined using a residual time associated with each IP address assigned to the mobile node. The IP address space partitioning is performed using residual time statistics maintained for mobile nodes of the network. The reassignment of IP addresses from the IP address space is controlled using hysteresis.
摘要翻译：本发明管理移动网络中的IP地址空间，包括分配IP地址空间，从IP地址空间分配IP地址和/或使用滞后来控制IP地址从IP地址空间的重新分配。 IP地址分配是使用一个或多个剩余时间统计来执行的，该剩余时间统计信息是为移动节点维护的，用于请求分配IP地址的剩余时间分布。移动节点的剩余时间简档包括与移动节点相关联的一个或多个剩余时间统计。使用与分配给移动节点的每个IP地址相关联的剩余时间来确定移动节点的剩余时间统计。使用为网络的移动节点维护的剩余时间统计来执行IP地址空间划分。从IP地址空间重新分配IP地址是通过滞后来控制的。

16. 发明授权

US08432787B2 Softrouter protocol disaggregation 有权
标题翻译： Softrouter协议分解
公开(公告)号：US08432787B2
公开(公告)日：2013-04-30
申请号：US13290633
申请日：2011-11-07
申请人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
发明人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
IPC分类号： G06F11/00 , H04J3/16
CPC分类号： H04L45/64 , H04L45/00 , H04L45/52 , H04L45/60
摘要： A SoftRouter architecture deconstructs routers by separating the control entities of a router from its forwarding components, enabling dynamic binding between them. In the SoftRouter architecture, control plane functions are aggregated and implemented on a few smart servers which control forwarding elements that are multiple network hops away. A dynamic binding protocol performs network-wide control plane failovers. Network stability is improved by aggregating and remotely hosting routing protocols, such as OSPF and BGP. This results in faster convergence, lower protocol messages processed, and fewer route changes following a failure. The SoftRouter architecture includes a few smart control entities that manage a large number of forwarding elements to provide greater support for network-wide control. In the SoftRouter architecture, routing protocols operate remotely at a control element and control one or more forwarding elements by downloading the forwarding tables, etc. into the forwarding elements. Intra-domain routing and inter-domain routing are also included.
摘要翻译： SoftRouter架构通过将路由器的控制实体与其转发组件分离来解构路由器，从而实现它们之间的动态绑定。在SoftRouter架构中，控制平面功能在几个智能服务器上进行聚合和实现，这些智能服务器控制多个网络跳转的转发元素。动态绑定协议执行网络范围的控制平面故障转移。通过聚合和远程托管路由协议（如OSPF和BGP）来提高网络的稳定性。这导致更快的收敛，更低的协议消息被处理，并且在故障之后更少的路由改变。 SoftRouter架构包括几个智能控制实体，它们管理大量转发元素，为网络范围的控制提供更大的支持。在SoftRouter架构中，路由协议在控制元件上进行远程操作，并通过将转发表等下载到转发元件中来控制一个或多个转发元素。还包括域内路由和域间路由。

17. 发明授权

US08068408B2 Softrouter protocol disaggregation 有权
标题翻译： Softrouter协议分解
公开(公告)号：US08068408B2
公开(公告)日：2011-11-29
申请号：US11147472
申请日：2005-06-08
申请人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
发明人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
IPC分类号： G06F11/00 , H04J3/16
CPC分类号： H04L45/64 , H04L45/00 , H04L45/52 , H04L45/60
摘要： A SoftRouter architecture deconstructs routers by separating the control entities of a router from its forwarding components, enabling dynamic binding between them. In the SoftRouter architecture, control plane functions are aggregated and implemented on a few smart servers which control forwarding elements that are multiple network hops away. A dynamic binding protocol performs network-wide control plane failovers. Network stability is improved by aggregating and remotely hosting routing protocols, such as OSPF and BGP. This results in faster convergence, lower protocol messages processed, and fewer route changes following a failure. The SoftRouter architecture includes a few smart control entities that manage a large number of forwarding elements to provide greater support for network-wide control. In the SoftRouter architecture, routing protocols operate remotely at a control element and control one or more forwarding elements by downloading the forwarding tables, etc. into the forwarding elements. Intra-domain routing and inter-domain routing are also included.
摘要翻译： SoftRouter架构通过将路由器的控制实体与其转发组件分离来解构路由器，从而实现它们之间的动态绑定。在SoftRouter架构中，控制平面功能在几个智能服务器上进行聚合和实现，这些智能服务器控制多个网络跳转的转发元素。动态绑定协议执行网络范围的控制平面故障转移。通过聚合和远程托管路由协议（如OSPF和BGP）来提高网络的稳定性。这导致更快的收敛，更低的协议消息被处理，并且在故障之后更少的路由更改。 SoftRouter架构包括几个智能控制实体，它们管理大量转发元素，为网络范围的控制提供更大的支持。在SoftRouter架构中，路由协议在控制元件上进行远程操作，并通过将转发表等下载到转发元件中来控制一个或多个转发元素。还包括域内路由和域间路由。

18. 发明申请

US20120281520A1 SOFTROUTER PROTOCOL DISAGGREGATION 有权
标题翻译： SOFTROUTER协议分歧
公开(公告)号：US20120281520A1
公开(公告)日：2012-11-08
申请号：US13290633
申请日：2011-11-07
申请人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
发明人： Furquan Ahmed Ansari , Martin Havemann , Tirunell V. Lakshman , Thyagarajan Nandagopal , Ramachandran Ramjee , Thomas Y. Woo
IPC分类号： H04L12/28 , H04L12/24
CPC分类号： H04L45/64 , H04L45/00 , H04L45/52 , H04L45/60
摘要： A SoftRouter architecture deconstructs routers by separating the control entities of a router from its forwarding components, enabling dynamic binding between them. In the SoftRouter architecture, control plane functions are aggregated and implemented on a few smart servers which control forwarding elements that are multiple network hops away. A dynamic binding protocol performs network-wide control plane failovers. Network stability is improved by aggregating and remotely hosting routing protocols, such as OSPF and BGP. This results in faster convergence, lower protocol messages processed, and fewer route changes following a failure. The SoftRouter architecture includes a few smart control entities that manage a large number of forwarding elements to provide greater support for network-wide control. In the SoftRouter architecture, routing protocols operate remotely at a control element and control one or more forwarding elements by downloading the forwarding tables, etc. into the forwarding elements. Intra-domain routing and inter-domain routing are also included.
摘要翻译： SoftRouter架构通过将路由器的控制实体与其转发组件分离来解构路由器，从而实现它们之间的动态绑定。在SoftRouter架构中，控制平面功能在几个智能服务器上进行聚合和实现，这些智能服务器控制多个网络跳转的转发元素。动态绑定协议执行网络范围的控制平面故障转移。通过聚合和远程托管路由协议（如OSPF和BGP）来提高网络的稳定性。这导致更快的收敛，更低的协议消息被处理，并且在故障之后更少的路由改变。 SoftRouter架构包括几个智能控制实体，它们管理大量转发元素，为网络范围的控制提供更大的支持。在SoftRouter架构中，路由协议在控制元件上进行远程操作，并通过将转发表等下载到转发元件中来控制一个或多个转发元素。还包括域内路由和域间路由。

19. 发明授权

US07835304B2 Method and apparatus for assigning IP addresses 有权
标题翻译：分配IP地址的方法和设备
公开(公告)号：US07835304B2
公开(公告)日：2010-11-16
申请号：US11946307
申请日：2007-11-28
申请人： Thyagarajan Nandagopal , Thomas Y. Woo
发明人： Thyagarajan Nandagopal , Thomas Y. Woo
IPC分类号： H04L12/28
CPC分类号： H04L61/2007 , H04L29/12216 , H04L29/12283 , H04L61/2061
摘要： The invention includes a method and apparatus for assigning an IP address to a mobile node (MN) from an IP address space represented using an address aggregation tree. A method includes receiving a request for an IP address for the MN, identifying each of a plurality of sub-tree gaps in the address aggregation tree, selecting one of the identified sub-tree gaps, and assigning an available IP address from the selected sub-tree gap to the MN. The sub-tree gaps of the address aggregation tree are identified using a recursive algorithm that traverses the address aggregation tree. The selected one of the sub-tree gaps is selected based on respective sizes of the identified sub-tree gaps. The assigned IP address is communicated to the MN for use by the MN in accessing various services.
摘要翻译：本发明包括从使用地址聚合树表示的IP地址空间向移动节点（MN）分配IP地址的方法和装置。一种方法包括接收对MN的IP地址的请求，识别地址聚合树中的多个子树间隙中的每一个，选择所识别的子树间隙中的一个，以及从所选择的子分配一个可用的IP地址与MN的空白。使用遍历地址聚合树的递归算法来识别地址聚合树的子树间隙。基于所识别的子树间隙的相应大小来选择所选择的一个子树间隙。分配的IP地址被传送给MN以供MN使用以访问各种服务。

20. 发明申请

US20100217866A1 Load Balancing in a Multiple Server System Hosting an Array of Services 审中-公开
标题翻译：在多服务器系统中负载平衡托管一组服务
公开(公告)号：US20100217866A1
公开(公告)日：2010-08-26
申请号：US12391724
申请日：2009-02-24
申请人： Thyagarajan Nandagopal , Thomas Y. Woo
发明人： Thyagarajan Nandagopal , Thomas Y. Woo
IPC分类号： G06F15/173
CPC分类号： H04L67/1029 , H04L67/1002 , H04L67/1012 , H04L67/1014
摘要： A method and system for load balancing in a multiple server system supporting multiple services are provided to determine the best server or servers supporting a service with the best response time. An induced aggregate load is determined for each of the multiple services in accordance with corresponding load metrics. A maximum induced aggregate load on a corresponding server that generates a substantially similar QoS for each of the plurality of services is determined. A load balancing server distributes the multiple services across the multiple servers in response to the determined induced aggregate and maximum induced aggregate loads, such that the QoS for each of the multiple services is substantially uniform across the servers.
摘要翻译：提供了支持多种服务的多服务器系统中负载平衡的方法和系统，以确定支持最佳响应时间的服务的最佳服务器或服务器。根据相应的负载量度确定多个服务中的每一个的诱导的总负载。确定对于多个服务中的每一个生成基本相似的QoS的对应服务器上的最大诱导聚合负载。负载平衡服务器响应于所确定的诱导的聚合和最大诱导的聚合负载来分布多个服务器上的多个服务，使得多个服务中的每一个的QoS在服务器之间基本上是统一的。

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