Patents by Inventor Jose A. Liste
Jose A. Liste 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: 10824509Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: GrantFiled: September 11, 2019Date of Patent: November 3, 2020Assignee: CISCO TECHNOLOGY, INC.Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Publication number: 20200004635Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Patent number: 10417095Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: GrantFiled: October 27, 2017Date of Patent: September 17, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Patent number: 10367783Abstract: Systems, methods, and computer-readable media for flushing of Customer Media Access Control (C-MAC) addresses in a PBB-EVPN network are disclosed. A first provider edge (PE) device can maintain a plurality of service instances configured on a first interface. The first PE device can detect at least one failed ethernet virtual circuit (EVC) on the first interface and identify at least one service instance from the plurality of service instances that is associated with the at least one failed EVC. The PE device can send, to a second PE device, a C-MAC flush notification message that identifies the at least one service instance and the message can cause the second PE device to remove C-MAC addresses corresponding to the at least one service instance and the B-MAC address for the first interface.Type: GrantFiled: October 27, 2017Date of Patent: July 30, 2019Assignee: CISCO TECHNOLOGY, INC.Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Publication number: 20180052738Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: ApplicationFiled: October 27, 2017Publication date: February 22, 2018Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Publication number: 20180048563Abstract: Systems, methods, and computer-readable media for flushing of Customer Media Access Control (C-MAC) addresses in a PBB-EVPN network are disclosed. A first provider edge (PE) device can maintain a plurality of service instances configured on a first interface. The first PE device can detect at least one failed ethernet virtual circuit (EVC) on the first interface and identify at least one service instance from the plurality of service instances that is associated with the at least one failed EVC. The PE device can send, to a second PE device, a C-MAC flush notification message that identifies the at least one service instance and the message can cause the second PE device to remove C-MAC addresses corresponding to the at least one service instance and the B-MAC address for the first interface.Type: ApplicationFiled: October 27, 2017Publication date: February 15, 2018Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Patent number: 9858150Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: GrantFiled: June 25, 2015Date of Patent: January 2, 2018Assignee: CISCO TECHNOLOGY, INC.Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Patent number: 9838310Abstract: Systems, methods, and computer-readable media for flushing of Customer Media Access Control (C-MAC) addresses in a PBB-EVPN network are disclosed. A first provider edge (PE) device can maintain a plurality of service instances configured on a first interface. The first PE device can detect at least one failed ethernet virtual circuit (EVC) on the first interface and identify at least one service instance from the plurality of service instances that is associated with the at least one failed EVC. The PE device can send, to a second PE device, a C-MAC flush notification message that identifies the at least one service instance and the message can cause the second PE device to remove C-MAC addresses corresponding to the at least one service instance and the B-MAC address for the first interface.Type: GrantFiled: October 22, 2015Date of Patent: December 5, 2017Assignee: CISCO TECHNOLOGY, INC.Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Patent number: 9780964Abstract: A method is provided in one example and includes determining a bandwidth level associated with a link, which is provided between a first microwave transceiver and a second microwave transceiver. The link is part of a communication ring containing multiple Ethernet ring protection elements. The method also includes comparing the bandwidth level associated with the link to a threshold level. A fail-over can be triggered for a selected one of the plurality of Ethernet ring protection elements if the bandwidth is below the threshold level. In certain example embodiments, the first microwave transceiver and the second microwave transceiver can implement an adaptive modulation protocol on the link.Type: GrantFiled: January 23, 2012Date of Patent: October 3, 2017Assignee: Cisco Technology, Inc.Inventors: Samer M. Salam, Jose A. Liste, Hidde Beumer
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Patent number: 9686186Abstract: A network device receives packets for one or more traffic flows to be sent into a network. The network device computes a flow identifier for each of the one or more traffic flows based on information contained in one or more headers of the packets for each of the one or more traffic flows and based on at least one value that is changed on an ongoing basis. The packets for each of the one or more traffic flows are encrypted to produce encrypted packets for each of the one or more traffic flows. An encapsulation is added to the encrypted packets for the one or more traffic flows. The flow identifier is included in a field of the encapsulation for a corresponding traffic flow.Type: GrantFiled: April 22, 2015Date of Patent: June 20, 2017Assignee: Cisco Technology, Inc.Inventors: Jose Liste, Brian Weis
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Publication number: 20160378606Abstract: Systems, methods, and computer-readable media for fast convergence for virtual ethernet segments in EVPN and PBB-EVPN networks are disclosed. A first provider edge (PE) device can receive one or more advertising messages corresponding to one or more virtual ethernet segments, wherein each of the one or more advertising messages can include a port identifier. The first PE device maintains a table including the one or more virtual ethernet segments and the corresponding port identifier. The first PE device can receive a failure message from a second PE device that identifies a first port on the second PE device, and identifies, based on the table, at least one affected virtual ethernet segment that is associated with the first port. The first PE device can remove any routes that are associated with the at least one affected virtual ethernet segment and trigger mass designated-forwarding election for impacted virtual ethernet segments.Type: ApplicationFiled: June 25, 2015Publication date: December 29, 2016Inventors: Ali Sajassi, Jose A. Liste, Patrice Brissette, Mei Zhang, Vi Vu
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Publication number: 20160315853Abstract: A network device receives packets for one or more traffic flows to be sent into a network. The network device computes a flow identifier for each of the one or more traffic flows based on information contained in one or more headers of the packets for each of the one or more traffic flows and based on at least one value that is changed on an ongoing basis. The packets for each of the one or more traffic flows are encrypted to produce encrypted packets for each of the one or more traffic flows. An encapsulation is added to the encrypted packets for the one or more traffic flows. The flow identifier is included in a field of the encapsulation for a corresponding traffic flow.Type: ApplicationFiled: April 22, 2015Publication date: October 27, 2016Inventors: Jose Liste, Brian Weis
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Patent number: 9113390Abstract: In one embodiment, a packet switching device receives a notification that a link has a diminished packet transport capacity. In response, the packet switching devices changes forwarding information for a portion of the packet traffic being sent over the diminished packet transport capacity link to traverse one or more reroute paths not including the diminished link, while some packet traffic continues to use the diminished packet transport capacity link. This notification can be received directly from a communications device, or via a routing protocol such as for a remote link that sent packet traffic may traverse. These rerouted paths may be precomputed and installed in forwarding data structures for fast rerouting, or computed and installed in response to receiving the notification. In one embodiment, quality of service (QoS) is adjusted in response to receiving the notification.Type: GrantFiled: September 17, 2013Date of Patent: August 18, 2015Assignee: Cisco Technology, Inc.Inventors: Kannan Jayaraman, Samer Salam, Shwetha Subray Bhandari, Jose A. Liste
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Publication number: 20150029948Abstract: In one embodiment, a packet switching device receives a notification that a link has a diminished packet transport capacity. In response, the packet switching devices changes forwarding information for a portion of the packet traffic being sent over the diminished packet transport capacity link to traverse one or more reroute paths not including the diminished link, while some packet traffic continues to use the diminished packet transport capacity link. This notification can be received directly from a communications device, or via a routing protocol such as for a remote link that sent packet traffic may traverse. These rerouted paths may be precomputed and installed in forwarding data structures for fast rerouting, or computed and installed in response to receiving the notification. In one embodiment, quality of service (QoS) is adjusted in response to receiving the notification.Type: ApplicationFiled: September 17, 2013Publication date: January 29, 2015Applicant: Cisco Technology, Inc., a corporation of CaliforniaInventors: Kannan Jayaraman, Samer Salam, Shwetha Subray Bhandari, Jose A. Liste
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Patent number: 8385215Abstract: A method is provided in one example embodiment and includes generating a test port in a network environment, positioning the test port on a network element, associating the test port with a bridge domain, and configuring a maintenance point (MP) on the test port. The method further includes using the MP on the test port for connectivity fault management (CFM) operations at a test level.Type: GrantFiled: November 13, 2008Date of Patent: February 26, 2013Assignee: Cisco Technoogy, Inc.Inventors: Lionel Florit, Jose A. Liste, Samer M. Salam