Patents by Inventor Simon WINGROVE
Simon WINGROVE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10439936Abstract: Measures, including methods, systems, non-transitory computer-readable storage mediums and computer programs for use in routing packet data. At a network switching device, a data packet is received from a device located upstream of the network switching device. The received data packet comprises routing data associated with a routing decision which has been taken for the data packet upstream of the network switching device. The routing data comprises an abstract media access control (MAC) address corresponding to a next hop destination for the data packet located downstream of the network switching device. At the network switching device, the abstract MAC address in the data packet is replaced with a real MAC address of the next hop downstream destination. At the network switching device, the data packet is forwarded towards the next hop downstream destination.Type: GrantFiled: May 2, 2018Date of Patent: October 8, 2019Assignee: Metaswitch Networks LtdInventors: Simon Wingrove, Michael Curtis, Shaun Crampton, Alex Pollitt
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Publication number: 20180359182Abstract: Measures, including methods, systems, non-transitory computer-readable storage mediums and computer programs for use in routing packet data. At a network switching device, a data packet is received from a device located upstream of the network switching device. The received data packet comprises routing data associated with a routing decision which has been taken for the data packet upstream of the network switching device. The routing data comprises an abstract media access control (MAC) address corresponding to a next hop destination for the data packet located downstream of the network switching device. At the network switching device, the abstract MAC address in the data packet is replaced with a real MAC address of the next hop downstream destination. At the network switching device, the data packet is forwarded towards the next hop downstream destination.Type: ApplicationFiled: May 2, 2018Publication date: December 13, 2018Inventors: Simon Wingrove, Michael Curtis, Shaun Crampton, Alex Pollitt
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Patent number: 10063456Abstract: Measures for processing data in a packet-switched network. A first device is configured to snoop control packets of a predetermined control plane protocol in the network. The predetermined control plane protocol is operated by a plurality of other devices in the network to obtain Layer 2 information on the basis of known Layer 3 information. The first device does not operate the predetermined control plane protocol in the network. At the first device, in response to identifying that a given snooped packet was generated according to the predetermined control plane protocol. Layer 3 information associated with a second device in the plurality is extracted from the given snooped control plane protocol packet on the basis of known Layer 2 information associated with the second device. The second device is connected to the first device.Type: GrantFiled: April 25, 2014Date of Patent: August 28, 2018Assignee: METASWITCH NETWORKS LTDInventors: Casey Davenport, Simon Wingrove, Alex Pollitt, Michael Curtis, Shaun Crampton, Steve Balls, Fiona Corden
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Patent number: 9985882Abstract: Measures, including methods, systems, non-transitory computer-readable storage mediums and computer programs for use in routing packet data. At a network switching device, a data packet is received from a device located upstream of the network switching device. The received data packet comprises routing data associated with a routing decision which has been taken for the data packet upstream of the network switching device. The routing data comprises an abstract media access control (MAC) address corresponding to a next hop destination for the data packet located downstream of the network switching device. At the network switching device, the abstract MAC address in the data packet is replaced with a real MAC address of the next hop downstream destination. At the network switching device, the data packet is forwarded towards the next hop downstream destination.Type: GrantFiled: October 29, 2014Date of Patent: May 29, 2018Assignee: METASWITCH NETWORKS LTDInventors: Simon Wingrove, Michael Curtis, Shaun Crampton, Alex Pollitt
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Patent number: 9923799Abstract: Measures for processing data in a packet-switched network. At a first device in the network, a packet transmitted from a second device in the network is received. The received packet comprising an Internet Protocol (IP) address for a third device in the network. On the basis of the IP address for the third device comprised in the received data packet, lookup in an IP routing table of the second device is initiated to obtain a next-hop address for the received packet. The obtained next-hop IP address is determined to be an IP address of a device connected to the first device.Type: GrantFiled: April 25, 2014Date of Patent: March 20, 2018Assignee: METASWITCH NETWORKS LTD.Inventors: Casey Davenport, Simon Wingrove, Alex Pollitt, Michael Curtis, Shaun Crampton, Steve Balls, Fiona Corden
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Patent number: 9871717Abstract: Measures for processing data in a packet-switched network. At a first device in the network, an echo request packet is transmitted into the network. The echo request packet comprises a predetermined identifier. An echo response packet is received from a second device in the network. In response to the received echo response packet comprising the predetermined identifier, the received echo response packet is identified as a packet generated on the basis of an echo request packet originated from the first device, and an Internet Protocol (IP) address comprised in the received echo response packet is determined to be an IP address of the second device.Type: GrantFiled: April 25, 2014Date of Patent: January 16, 2018Assignee: METASWITCH NETWORKS LTDInventors: Casey Davenport, Simon Wingrove, Alex Pollitt, Michael Curtis, Shaun Crampton, Steve Balls, Fiona Corden
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Patent number: 9742660Abstract: Certain examples described herein provide a system and method for validating a routing function for a network device. In one example, a network device has a run-time policy engine, wherein the run-time policy engine implements a routing configuration file and the routing configuration file defines a routing function for network traffic. A file editor is also provided that loads the routing configuration file. The file editor has an editor policy engine that duplicates a functionality of the run-time policy engine. In one example, the routing configuration file has at least one validation portion that has one or more route statements with definitions indicative of expected routing function behavior. The file editor parses the routing configuration file by implementing the routing configuration file using the editor policy engine.Type: GrantFiled: January 28, 2015Date of Patent: August 22, 2017Assignee: METASWITCH NETWORKS LTDInventors: Christopher Liljenstolpe, Simon Wingrove, Michael Curtis, Tom Denham, Paul Tiplady, Alex Pollitt
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Patent number: 9559971Abstract: Measures for configuring a network aggregation device in a network. First routing data for a plurality of internet protocol (IP) flows configured on at least one edge device of a service provider network is identified. The edge device is located towards the service provider network from the network aggregation device. At least one utility metric for at least one IP flow in the identified plurality of IP flows is calculated. The at least one utility metric is calculated at least in part on the basis of one or more destination IP addresses associated with the at least one IP flow. A subset of IP flows from the identified plurality of IP flows is selected at least in part on the basis of the calculated at least one utility metric. Second routing data for the selected subset of IP flows is configured on the network aggregation device.Type: GrantFiled: August 29, 2014Date of Patent: January 31, 2017Assignee: METASWITCH NETWORKS LTDInventors: Michael Curtis, Alex Pollitt, Simon Wingrove, Shaun Crampton
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Publication number: 20160218964Abstract: Certain examples described herein provide a system and method for validating a routing function for a network device. In one example, a network device has a run-time policy engine, wherein the run-time policy engine implements a routing configuration file and the routing configuration file defines a routing function for network traffic. A file editor is also provided that loads the routing configuration file. The file editor has an editor policy engine that duplicates a functionality of the run-time policy engine. In one example, the routing configuration file has at least one validation portion that has one or more route statements with definitions indicative of expected routing function behavior. The file editor parses the routing configuration file by implementing the routing configuration file using the editor policy engine.Type: ApplicationFiled: January 28, 2015Publication date: July 28, 2016Inventors: Christopher LILJENSTOLPE, Simon WINGROVE, Michael CURTIS, Tom DENHAM, Paul TIPLADY, Alex POLLITT
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Publication number: 20160127229Abstract: Measures, including methods, systems, non-transitory computer-readable storage mediums and computer programs for use in routing packet data. At a network switching device, a data packet is received from a device located upstream of the network switching device. The received data packet comprises routing data associated with a routing decision which has been taken for the data packet upstream of the network switching device. The routing data comprises an abstract media access control (MAC) address corresponding to a next hop destination for the data packet located downstream of the network switching device. At the network switching device, the abstract MAC address in the data packet is replaced with a real MAC address of the next hop downstream destination. At the network switching device, the data packet is forwarded towards the next hop downstream destination.Type: ApplicationFiled: October 29, 2014Publication date: May 5, 2016Inventors: Simon WINGROVE, Michael CURTIS, Shaun CRAMPTON, Alex POLLITT
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Publication number: 20160065482Abstract: Measures for configuring a network aggregation device in a network. First routing data for a plurality of internet protocol (IP) flows configured on at least one edge device of a service provider network is identified. The edge device is located towards the service provider network from the network aggregation device. At least one utility metric for at least one IP flow in the identified plurality of IP flows is calculated. The at least one utility metric is calculated at least in part on the basis of one or more destination IP addresses associated with the at least one IP flow. A subset of IP flows from the identified plurality of IP flows is selected at least in part on the basis of the calculated at least one utility metric. Second routing data for the selected subset of IP flows is configured on the network aggregation device.Type: ApplicationFiled: August 29, 2014Publication date: March 3, 2016Inventors: Michael CURTIS, Alex POLLITT, Simon WINGROVE, Shaun CRAMPTON
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Publication number: 20150312128Abstract: Measures for processing data in a packet-switched network. A first device is configured to snoop control packets of a predetermined control plane protocol in the network. The predetermined control plane protocol is operated by a plurality of other devices in the network to obtain Layer 2 information on the basis of known Layer 3 information. The first device does not operate the predetermined control plane protocol in the network. At the first device, in response to identifying that a given snooped packet was generated according to the predetermined control plane protocol. Layer 3 information associated with a second device in the plurality is extracted from the given snooped control plane protocol packet on the basis of known Layer 2 information associated with the second device. The second device is connected to the first device.Type: ApplicationFiled: April 25, 2014Publication date: October 29, 2015Applicant: Metaswitch Networks LtdInventors: Casey DAVENPORT, Simon WINGROVE, Alex POLLITT, Spike CURTIS, Shaun CRAMPTON, Steve BALLS, Fiona CORDEN
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Publication number: 20150312149Abstract: Measures for processing data in a packet-switched network. At a first device in the network, a packet transmitted from a second device in the network is received. The received packet comprising an Internet Protocol (IP) address for a third device in the network. On the basis of the IP address for the third device comprised in the received data packet, lookup in an IP routing table of the second device is initiated to obtain a next-hop address for the received packet. The obtained next-hop IP address is determined to be an IP address of a device connected to the first device.Type: ApplicationFiled: April 25, 2014Publication date: October 29, 2015Applicant: Metaswitch Networks LtdInventors: Casey DAVENPORT, Simon WINGROVE, Alex POLLITT, Spike CURTIS, Shaun CRAMPTON, Steve BALLS, Fiona CORDEN
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Publication number: 20150312129Abstract: Measures for processing data in a packet-switched network. At a first device in the network, an echo request packet is transmitted into the network. The echo request packet comprises a predetermined identifier. An echo response packet is received from a second device in the network. In response to the received echo response packet comprising the predetermined identifier, the received echo response packet is identified as a packet generated on the basis of an echo request packet originated from the first device, and an Internet Protocol (IP) address comprised in the received echo response packet is determined to be an IP address of the second device.Type: ApplicationFiled: April 25, 2014Publication date: October 29, 2015Applicant: Metaswitch Networks LtdInventors: Casey DAVENPORT, Simon WINGROVE, Alex POLLITT, Spike CURTIS, Shaun CRAMPTON, Steve BALLS, Fiona CORDEN