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1. 发明授权

US10873527B2 Link protection method in SDN, switching device, and network controller 有权
公开(公告)号：US10873527B2
公开(公告)日：2020-12-22
申请号：US15668484
申请日：2017-08-03
申请人： Huawei Technologies Co., Ltd.
发明人： Peilin Yang , Hengcheng Zhang , Tao Han
IPC分类号： H04L12/703 , H04L12/911 , H04L12/24 , H04L12/707 , H04L12/715 , H04L12/46 , H04L12/721
CPC分类号： H04L45/28 , H04L41/0663 , H04L41/0668 , H04L41/0836 , H04L45/22 , H04L45/64 , H04L47/728 , H04L47/746 , H04L12/4641 , H04L45/38
摘要： A link protection method in a software-defined networking (SDN), a corresponding switching device and network controller, where the method includes receiving, by a first switching device in the SDN, first information from a network controller in the SDN and link protection information, where the first information establishes a communication link between the first switching device and a destination device, and the link protection information instructs the first switching device to proactively perform primary-to-secondary link switching when a link is faulty, establishing, by the first switching device, the communication link with the destination device according to the first information, and determining, by the first switching device according to the link protection information, that the first switching device proactively performs the primary-to-secondary link switching.

2. 发明授权

US09590895B2 Refresh interval independent fast reroute facility protection tear down messaging 有权
标题翻译：刷新间隔独立快速重路由设备保护拆除消息
公开(公告)号：US09590895B2
公开(公告)日：2017-03-07
申请号：US14585683
申请日：2014-12-30
申请人： Juniper Networks, Inc.
发明人： Chandrasekar Ramachandran , Markus Jork , Yakov Rekhter , Harish Sitaraman
IPC分类号： H04L12/24 , H04L12/703 , H04L12/723 , H04L12/751 , H04L12/913 , H04L12/911 , H04L12/707 , H04L29/06
CPC分类号： H04L45/28 , H04L41/0654 , H04L41/0668 , H04L45/026 , H04L45/22 , H04L45/50 , H04L45/507 , H04L47/72 , H04L47/728 , H04L65/4069
摘要： In one example, techniques of this disclosure may enable a point of local repair (PLR) network device to signal availability of link protection or node protection to a merge point (MP) network device and enable a network device to actively determine whether or not it is a merge point router. Based on whether or not the network device determines it is a MP, the network device may selectively clean up LSP states when there is an upstream link or node failure. The RSVP-TE protocol may be extended to enable a network device to send a tear down message to a downstream router, which may enable the downstream router to conditionally delete locale LSP state information. In some instances, a PLR network device may directly send a tear down message to a MP network device even though the PLR network device may not have a working bypass LSP.
摘要翻译：在一个示例中，本公开的技术可以使得本地修复（PLR）网络设备的点能够向合并点（MP）网络设备通知链路保护或节点保护的可用性，并使得网络设备能够主动地确定其是否是一个合并点路由器。基于网络设备是否确定它是MP，当存在上游链路或节点故障时，网络设备可以选择性地清除LSP状态。可以扩展RSVP-TE协议以使网络设备向下游路由器发送撕下消息，这可以使下游路由器有条件地删除区域性LSP状态信息。在一些情况下，即使PLR网络设备可能没有工作旁路LSP，PLR网络设备也可以直接向MP网络设备发送拆卸消息。

3. 发明申请

US20170063719A1 Resource reservation network that maintains low latency and latency variation of co-shared sessions 有权
标题翻译：资源预留网络保持共享会话的低延迟和延迟变化
公开(公告)号：US20170063719A1
公开(公告)日：2017-03-02
申请号：US15223184
申请日：2016-07-29
申请人： Valens Semiconductor Ltd.
发明人： Eyran Lida , Nadav Banet
IPC分类号： H04L12/927 , H04L12/727 , H04L12/911 , H04L29/08
CPC分类号： H04L47/805 , H04L41/0896 , H04L45/121 , H04L47/283 , H04L47/726 , H04L47/728 , H04L47/801 , H04L69/04 , H04N21/00
摘要： Methods and systems for resource reservation networks configured to maintain low latency and latency variation of co-shared sessions. A session creation module (SCM) creates a bi-directional parent session (Sp), between first and second session partners, by: allocating co-shared network resources over a first network hop, and allocating network resources over a second network hop; wherein the network resources allocated to the Sp guarantee a maximum end-to-end latency variation (e2eLV) below 100 usec. The SCM further calculates a maximum e2eLV of a potential bi-directional derivative session (Sd) between the first session partner and a third session partner; wherein the potential Sd utilizes network resources over a third network hop and the co-shared network resources over the first network hop. And the SCM creates the Sd responsive to determining that the maximum e2eLV of the Sd being below 100 usec.
摘要翻译：资源预留网络的方法和系统被配置为保持共享会话的低延迟和延迟变化。会话创建模块（SCM）通过以下方式在第一和第二会话伙伴之间创建双向父会话（Sp）：在第一网络跳转上分配共享网络资源，以及通过第二网络跳跃分配网络资源; 其中分配给Sp的网络资源保证低于100 usec的最大端到端延迟变化（e2eLV）。 SCM还计算第一会话伙伴和第三会话伙伴之间的潜在双向导出会话（Sd）的最大e2eLV; 其中所述电位Sd通过第三网络跳跃利用网络资源，并通过所述第一网络跳跃来共享所述共享网络资源。并且SCM创建Sd，以响应于确定Sd的最大e2eLV低于100 usec。

4. 发明申请

US20170063711A1 Bi-directional co-shared sessions 审中-公开
标题翻译：双向共享会议
公开(公告)号：US20170063711A1
公开(公告)日：2017-03-02
申请号：US15223085
申请日：2016-07-29
申请人： Valens Semiconductor Ltd.
发明人： Eyran Lida , Nadav Banet
IPC分类号： H04L12/911 , H04L12/727 , H04L29/08
CPC分类号： H04L47/805 , H04L41/0896 , H04L45/121 , H04L47/283 , H04L47/726 , H04L47/728 , H04L47/801 , H04L69/04 , H04N21/00
摘要： Methods and systems for a resource reservation network that supports bi-directional co-shared sessions. A session creation module (SCM) creates a bi-directional parent session (Sp), between first and second session partners, by: allocating co-shared network resources over a first network hop, and allocating network resources over a second network hop. The SCM further creates a bi-directional derivative session (Sd) between the first session partner and a third session partner, by: allocating network resources to the Sd over a third network hop, and not allocating specifically for the Sd all the network resources required for the Sd over the first network hop.
摘要翻译：支持双向共享会话的资源预留网络的方法和系统。会话创建模块（SCM）通过以下方式在第一和第二会话伙伴之间创建双向父会话（Sp）：在第一网络跳转上分配共享网络资源，以及通过第二网络跳跃分配网络资源。 SCM还通过以下方式在第一会话伙伴和第三会话伙伴之间创建双向导出会话（Sd）：通过第三网络跳转将网络资源分配给Sd，并且不对所有所需的所有网络资源进行分配为Sd在第一个网络跳。

5. 发明授权

US09094314B2 System and method for access point (AP) aggregation and resiliency in a hybrid wired/wireless local area network 有权
标题翻译：混合有线/无线局域网中接入点（AP）聚合和弹性的系统和方法
公开(公告)号：US09094314B2
公开(公告)日：2015-07-28
申请号：US13968595
申请日：2013-08-16
申请人： BROADCOM CORPORATION
发明人： Richard Martin , Yong Kim
IPC分类号： H04W4/00 , H04L12/24 , H04L12/54 , H04L12/803 , H04L12/801 , H04L12/813 , H04L12/853 , H04L12/911 , H04L12/923 , H04L12/919 , H04L12/927 , H04L12/931 , H04L29/06 , H04L29/14 , H04L1/16 , H04W28/08 , H04W36/00 , H04W84/12 , H04W88/08 , H04L29/08
CPC分类号： H04L41/0896 , H04L1/1607 , H04L47/125 , H04L47/14 , H04L47/20 , H04L47/2416 , H04L47/70 , H04L47/728 , H04L47/746 , H04L47/762 , H04L47/767 , H04L47/805 , H04L47/824 , H04L47/828 , H04L49/351 , H04L63/10 , H04L69/32 , H04L69/40 , H04W28/08 , H04W36/0055 , H04W84/12 , H04W88/08
摘要： Aspects of the invention may provide a system and method for access point aggregation and resiliency in a hybrid wired/wireless local area network. Access point aggregation and resiliency may include determining one or more available switch ports having a capability to handle a first access point group, the first access point group having a first default switch port. One or more available switch ports may be provisioned to provide service to the first access point group. Information may be communicated between the first default switch port and/or any of the provisioned switch ports, while maintaining client status and connection information. Available switch ports may be selected from a reserved pool of available switch ports and upon abatement of a need to utilize the provisioned switch ports, the provisioned switch ports may be returned to the reserved pool of available switch ports.
摘要翻译：本发明的各方面可以提供用于混合有线/无线局域网中的接入点聚合和弹性的系统和方法。接入点聚合和弹性可以包括确定具有处理第一接入点组的能力的一个或多个可用交换机端口，第一接入点组具有第一默认交换机端口。可以提供一个或多个可用的交换机端口以向第一接入点组提供服务。在保持客户端状态和连接信息的同时，可以在第一默认交换机端口和/或任何所提供的交换机端口之间传送信息。可用的交换机端口可以从可用交换机端口的保留池中选择，并且在减少需要使用所提供的交换机端口时，所提供的交换机端口可以被返回到可用交换机端口的保留池。

6. 发明授权

US09001648B2 Apparatus and method for spare capacity allocation on dual link failures 有权
标题翻译：双链路故障备用容量分配的装置和方法
公开(公告)号：US09001648B2
公开(公告)日：2015-04-07
申请号：US13434632
申请日：2012-03-29
申请人： Victor Yu Liu
发明人： Victor Yu Liu
IPC分类号： H04L12/703 , H04L12/707 , H04L12/911
CPC分类号： H04L45/28 , H04L45/22 , H04L47/728
摘要： A method implemented by an apparatus for providing spare capacity allocation (SCA) for dual link failures in a network. The SCA scheme computes the SCA for each of a plurality of flows in the network for a plurality of primary backup paths corresponding to a plurality of disjoint working paths for the flows using a first integer linear programming (ILP) model. The SCA scheme further computes the SCA for each of the flows for a plurality of secondary backup paths corresponding to the disjoint working paths and the primary backup paths using a second ILP model and the computed spare capacity information for the primary backup paths. The SCA scheme further aggregates the computed SCA for the primary backup paths and the secondary backup paths for all the flows.
摘要翻译：一种用于为网络中的双链路故障提供备用容量分配（SCA）的装置实现的方法。 SCA方案为使用第一整数线性规划（ILP）模型针对流的多个不相交的工作路径对应于多个主备用路径计算网络中的多个流中的每个流的SCA。 SCA方案还使用第二ILP模型和用于主备份路径的计算出的备用容量信息来计算针对与不相交的工作路径和主备用路径相对应的多个辅助备份路径的每个流的SCA。 SCA方案进一步聚合计算的主备份路径的SCA和所有流的辅助备份路径。

7. 发明授权

US08782244B2 Method and apparatus for a software programmable intelligent network 有权
标题翻译：用于软件可编程智能网络的方法和装置
公开(公告)号：US08782244B2
公开(公告)日：2014-07-15
申请号：US13404811
申请日：2012-02-24
申请人： Shannon M. Lake, Sr. , Charles W. Gibson , N. Bruce Threewitt
发明人： Shannon M. Lake, Sr. , Charles W. Gibson , N. Bruce Threewitt
IPC分类号： G06F15/16 , G06F15/177 , G06F15/173
CPC分类号： H04L47/722 , H04L47/15 , H04L47/18 , H04L47/70 , H04L47/724 , H04L47/728 , H04L47/745 , H04L47/805 , H04L47/822
摘要： A reservation request is received for a data transport session. The reservation request contains a requested class of communication service through the asynchronous network. The state of the network along the route is then preferably determined and at least one end-to-end route through the network is obtained. The route is based on the requested class of communication service and the state of the network. The data transport session is then controlled, such that data is forced to travel along at least one route through the asynchronous network. This is preferably done by controlling multiple data controllers dispersed along the at least one route by mapping specific data protocols to specific routes, or mapping specific data protocols to specific ports in each data controller. If a state of the asynchronous network indicates that the route cannot transport data in conformity to the class of communication service, then the route is changed to a backup route through the network.
摘要翻译：接收到数据传输会话的预约请求。预留请求包含通过异步网络请求的一类通信服务。然后优选地确定沿着路由的网络的状态，并且获得通过网络的至少一个端到端路由。该路由基于所请求的通信服务类和网络状态。然后控制数据传输会话，使得数据被迫沿着至少一个通过异步网络的路由行进。优选地通过将特定数据协议映射到特定路由来控制沿着至少一个路由分散的多个数据控制器，或将特定数据协议映射到每个数据控制器中的特定端口来完成。如果异步网络的状态表示路由不能按照通信业务类传输数据，则通过网络将路由更改为备份路由。

8. 发明申请

US20130336123A1 SYSTEM AND METHOD FOR ACCESS POINT (AP) AGGREGATION AND RESILIENCY IN A HYBRID WIRED/WIRELESS LOCAL AREA NETWORK 有权
标题翻译：混合有线/无线局域网中接入点（AP）聚合和恢复的系统和方法
公开(公告)号：US20130336123A1
公开(公告)日：2013-12-19
申请号：US13968595
申请日：2013-08-16
申请人： BROADCOM CORPORATION
发明人： Richard Martin , Yong Kim
IPC分类号： H04L12/24
CPC分类号： H04L41/0896 , H04L1/1607 , H04L47/125 , H04L47/14 , H04L47/20 , H04L47/2416 , H04L47/70 , H04L47/728 , H04L47/746 , H04L47/762 , H04L47/767 , H04L47/805 , H04L47/824 , H04L47/828 , H04L49/351 , H04L63/10 , H04L69/32 , H04L69/40 , H04W28/08 , H04W36/0055 , H04W84/12 , H04W88/08
摘要： Aspects of the invention may provide a system and method for access point aggregation and resiliency in a hybrid wired/wireless local area network. Access point aggregation and resiliency may include determining one or more available switch ports having a capability to handle a first access point group, the first access point group having a first default switch port. One or more available switch ports may be provisioned to provide service to the first access point group. Information may be communicated between the first default switch port and/or any of the provisioned switch ports, while maintaining client status and connection information. Available switch ports may be selected from a reserved pool of available switch ports and upon abatement of a need to utilize the provisioned switch ports, the provisioned switch ports may be returned to the reserved pool of available switch ports.
摘要翻译：本发明的各方面可以提供用于混合有线/无线局域网中的接入点聚合和弹性的系统和方法。接入点聚合和弹性可以包括确定具有处理第一接入点组的能力的一个或多个可用交换机端口，第一接入点组具有第一默认交换机端口。可以提供一个或多个可用的交换机端口以向第一接入点组提供服务。在保持客户端状态和连接信息的同时，可以在第一默认交换机端口和/或任何所提供的交换机端口之间传送信息。可用的交换机端口可以从可用交换机端口的保留池中选择，并且在减少需要使用所提供的交换机端口时，所提供的交换机端口可以被返回到可用交换机端口的保留池。

9. 发明授权

US08537682B2 Tunnel provisioning with link aggregation 有权
公开(公告)号：US08537682B2
公开(公告)日：2013-09-17
申请号：US13116696
申请日：2011-05-26
申请人： Ronen Solomon
发明人： Ronen Solomon
IPC分类号： G08C15/00 , H04L12/28 , G06F15/173
CPC分类号： H04L45/50 , H04L12/5695 , H04L45/00 , H04L45/04 , H04L45/245 , H04L45/502 , H04L45/74 , H04L47/70 , H04L47/724 , H04L47/728 , H04L47/825 , H04L47/829 , Y02D50/30
摘要： A method for processing data packets in a communication network includes establishing a path for a flow of the data packets through the communication network. At a node along the path having a plurality of aggregated ports, a port is selected from among the plurality to serve as part of the path. A label is chosen responsively to the selected port. The label is attached to the data packets in the flow at a point on the path upstream from the node. Upon receiving the data packets at the node, the data packets are switched through the selected port responsively to the label.

10. 发明授权

US08462812B2 Method for estimation of residual bandwidth 失效
标题翻译：剩余带宽估计方法
公开(公告)号：US08462812B2
公开(公告)日：2013-06-11
申请号：US13131024
申请日：2008-11-25
申请人： Ozgur Gurbuz , Ozgur Ercetin , Yunus Sarikaya , Cem Atalay
发明人： Ozgur Gurbuz , Ozgur Ercetin , Yunus Sarikaya , Cem Atalay
IPC分类号： H04J3/16 , H04J3/22
CPC分类号： H04L47/823 , H04L45/00 , H04L47/70 , H04L47/728
摘要： This invention related to a bandwidth estimation method which is easily implementable on network nodes and enables to be made better routing decisions (for example the link with higher residual bandwidth should be favored in routing decisions) and/or estimates the flow admission control (for example accept a new flow only if there is enough available path residual bandwidth) by enabling estimation of availability of the communication capacity estimates.
摘要翻译：本发明涉及一种在网络节点上易于实现的带宽估计方法，并使得能够做出更好的路由决策（例如，具有更高剩余带宽的链路应当在路由决策中有利）和/或估计流量准入控制（例如只有在有足够的可用路径剩余带宽的情况下才能接受新流量），才能估计通信容量估计的可用性。

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