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1. 发明授权

US10999101B2 Flow synchronization 有权
公开(公告)号：US10999101B2
公开(公告)日：2021-05-04
申请号：US15970827
申请日：2018-05-03
申请人： Metaswitch Networks Ltd
发明人： Robert Brockbank , Alex Pollitt , Michael Curtis , Shaun Crampton
IPC分类号： H04L12/64 , H04L12/851 , H04L12/721 , H04L12/24
摘要： A controller node receives a list of a first plurality of flows programmed on a network switch. The controller node extracts a flow cookie value from a flow cookie data field of each flow in the first plurality of flows on the received list and calculates a session identifier on the basis of the extracted cookie values. At least one add flow command is transmitted from the controller node to the network switch to program a second plurality of flows on the network switch. The at least one add flow command comprises flow cookie values in the flow cookie data fields of each of the flows in the second plurality of flows which are set equal to the calculated session identifier. At least one delete flow command is transmitted from the controller node to the network switch to delete programming of the first plurality of flows on the network switch.

2. 发明授权

US09166888B1 Configuration data 有权
标题翻译：配置数据
公开(公告)号：US09166888B1
公开(公告)日：2015-10-20
申请号：US14267798
申请日：2014-05-01
申请人： Metaswitch Networks Ltd
发明人： Robert Brockbank , Shaun Crampton
IPC分类号： H04J14/00 , H04L12/24 , H04B10/27 , H04L12/751 , H04L12/723 , H04J14/02 , H04B10/00
CPC分类号： H04L41/12 , H04B10/27 , H04J14/0227 , H04J14/0267 , H04L45/02 , H04L45/50 , H04L45/62
摘要： Measures for use in generating path configuration data for an optical network. A least cost path calculation process is performed on a network graph representation of the optical network to generate path configuration data for the optical network. Performing the least cost path calculation process comprises performing a network graph expansion process on the network graph representation of the optical network to obtain an expanded network graph representation of the optical network. Performing the network graph expansion process comprises determining data identifying the possible expansion paths to each optical node, the cost of each path and the available wavelengths for each path, grouping together wavelength and path data for paths of equal cost, and at one or more nodes, identifying a subset of one or more wavelengths and performing a wavelength pruning operation.
摘要翻译：用于生成光网络的路径配置数据的措施。在光网络的网络图表示上执行最小成本路径计算处理，以生成光网络的路径配置数据。执行最低成本路径计算过程包括对光网络的网络图表示执行网络图扩展处理，以获得光网络的扩展网络图表示。执行网络图扩展过程包括确定识别到每个光节点的可能扩展路径的数据，每个路径的每个路径的成本和每个路径的可用波长，将相同成本的路径的波长和路径数据组合在一起，以及在一个或多个节点，识别一个或多个波长的子集并执行波长修剪操作。

3. 发明授权

US10003474B2 Flow synchronization 有权
公开(公告)号：US10003474B2
公开(公告)日：2018-06-19
申请号：US14267813
申请日：2014-05-01
申请人： Metaswitch Networks Ltd
发明人： Robert Brockbank , Alex Pollitt , Michael Curtis , Shaun Crampton
IPC分类号： H04L12/851 , H04L12/64 , H04L12/721 , H04L12/24
CPC分类号： H04L12/6418 , H04L41/0672 , H04L41/5096 , H04L45/38 , H04L47/2483
摘要： A controller node receives a list of a first plurality of flows programmed on a network switch. The controller node extracts a flow cookie value from a flow cookie data field of each flow in the first plurality of flows on the received list and calculates a session identifier on the basis of the extracted cookie values. At least one add flow command is transmitted from the controller node to the network switch to program a second plurality of flows on the network switch. The at least one add flow command comprises flow cookie values in the flow cookie data fields of each of the flows in the second plurality of flows which are set equal to the calculated session identifier. At least one delete flow command is transmitted from the controller node to the network switch to delete programming of the first plurality of flows on the network switch.

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