Patents by Inventor Sanjoy Bardhan
Sanjoy Bardhan 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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Publication number: 20210258665Abstract: Methods and systems for secure autonomic optical transport networks are disclosed, including a method of adding a network element in an optical network, comprising: verifying, with a new network element, a first identifier certificate from a proxy network element; verifying, with the proxy network element, a second identifier certificate from the new network element; using a registrar for verifying the second identifier certificate from the proxy network element and sending domain specific parameters to the proxy network element for forwarding to the new network element; generating, on the new network element, a local certificate derived from a secure module and sending it to the proxy network element for forwarding to the registrar; enrolling, with the registrar, the new network element in the autonomic domain; and signing, with the registrar, the local certificate and sending the signed local certificate to the new network element.Type: ApplicationFiled: December 18, 2020Publication date: August 19, 2021Inventors: Abhinava Sadasivarao, Sanjoy Bardhan, Sharfuddin Syed, Biao Lu, Loukas Paraschis, Hao Su
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Patent number: 10841211Abstract: Methods, devices, and systems for mapping transport segment labels to packet network endpoints using a mapping server. In some implementations, an end point address in an edge domain is received from an edge router, a mapping of one of the end point address to a transport segment label is received from a network device, the mapping is stored in a non-transitory memory device, and the mapping is transmitted to the edge router.Type: GrantFiled: December 6, 2016Date of Patent: November 17, 2020Assignee: Infinera CorporationInventors: Madhukar Anand, Ramesh Subrahmaniam, Sanjoy Bardhan
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Patent number: 10447589Abstract: Systems, methods, and devices for determining a property of, or isolating a fault in, a transport segment. A packet portion test packet can be transmitted over a packet portion of a transport segment. Packet portion results can be received in response to the packet portion test packet. A transport portion test packet can be transmitted over a transport portion of the transport segment. Transport portion results can be received in response to the transport portion test packet. The packet portion results and the transport portion results can be correlated to generate correlated test results. The correlated test results can be processed to determine the property of, or isolate the fault in, the transport segment.Type: GrantFiled: December 23, 2016Date of Patent: October 15, 2019Assignee: Infinera CorporationInventors: Sanjoy Bardhan, Madhukar Anand, Ramesh Subrahmaniam
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Patent number: 10341748Abstract: A method and system for packet-optical in-band telemetry (POINT) that may be used in a packet-optical network is disclosed herein. An intermediate POINT device may receive a packet including at least a header and a payload at a packet layer. The POINT device may read intent information from the header, and the intent information may indicate a type of telemetry data to be collected. The POINT device may translate the intent information from the packet layer to generate a device-specific action in an optical layer to the type of telemetry data indicated by the intent. The POINT device may execute the device-specific action in the optical layer to generate a response corresponding to the intent, associate the response with the intent, and encode the response in the packet layer for downstream data forwarding.Type: GrantFiled: November 2, 2017Date of Patent: July 2, 2019Assignee: Infinera CorporationInventors: Madhukar Anand, Ramesh Subrahmaniam, Sanjoy Bardhan, Radhakrishna Valiveti
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Publication number: 20190014394Abstract: A method and system for packet-optical in-band telemetry (POINT) that may be used in a packet-optical network is disclosed herein. An intermediate POINT device may receive a packet including at least a header and a payload at a packet layer. The POINT device may read intent information from the header, and the intent information may indicate a type of telemetry data to be collected. The POINT device may translate the intent information from the packet layer to generate a device-specific action in an optical layer to the type of telemetry data indicated by the intent. The POINT device may execute the device-specific action in the optical layer to generate a response corresponding to the intent, associate the response with the intent, and encode the response in the packet layer for downstream data forwarding.Type: ApplicationFiled: November 2, 2017Publication date: January 10, 2019Applicant: Infinera CorporationInventors: Madhukar Anand, Ramesh Subrahmaniam, Sanjoy Bardhan, Radhakrishna Valiveti
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Patent number: 10097909Abstract: A packet optical network may include a packet optical gateway node that is configured to advertise a segment label to other nodes in the network where the segment label is used by a source node in place of a conventional segment routing label when the source node generates the list of labels included in the header of a data packet while establishing a path through a network. The segment label differs from a conventional segment routing label in that the segment label indicates the L0/L1 device or path as opposed to the L2/L3 device indicated by a conventional segment routing label.Type: GrantFiled: August 26, 2016Date of Patent: October 9, 2018Assignee: Infinera CorporationInventors: Madhukar Anand, Sanjoy Bardhan, Ramesh Subrahmaniam, Soumya Roy
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Publication number: 20180013669Abstract: Systems, methods, and devices for determining a property of, or isolating a fault in, a transport segment. A packet portion test packet can be transmitted over a packet portion of a transport segment. Packet portion results can be received in response to the packet portion test packet. A transport portion test packet can be transmitted over a transport portion of the transport segment. Transport portion results can be received in response to the transport portion test packet. The packet portion results and the transport portion results can be correlated to generate correlated test results. The correlated test results can be processed to determine the property of, or isolate the fault in, the transport segment.Type: ApplicationFiled: December 23, 2016Publication date: January 11, 2018Applicant: Infinera CorporationInventors: Sanjoy Bardhan, Madhukar Anand, Ramesh Subrahmaniam
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Publication number: 20170324647Abstract: Methods, devices, and systems for mapping transport segment labels to packet network endpoints using a mapping server. In some implementations, an end point address in an edge domain is received from an edge router, a mapping of one of the end point address to a transport segment label is received from a network device, the mapping is stored in a non-transitory memory device, and the mapping is transmitted to the edge router.Type: ApplicationFiled: December 6, 2016Publication date: November 9, 2017Applicant: Infinera CorporationInventors: Madhukar Anand, Ramesh Subrahmaniam, Sanjoy Bardhan
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Publication number: 20170257684Abstract: A packet optical network may include a packet optical gateway node that is configured to advertise a segment label to other nodes in the network where the segment label is used by a source node in place of a conventional segment routing label when the source node generates the list of labels included in the header of a data packet while establishing a path through a network. The segment label differs from a conventional segment routing label in that the segment label indicates the L0/L1 device or path as opposed to the L2/L3 device indicated by a conventional segment routing label.Type: ApplicationFiled: August 26, 2016Publication date: September 7, 2017Inventors: Madhukar ANAND, Sanjoy BARDHAN, Ramesh SUBRAHMANIAM, Soumya ROY
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Patent number: 8441942Abstract: A method and system of loop detection for improving network performance and data integrity over a communications network are disclosed. A process is capable of transmitting a diagnostic packet stream from a source object to a destination object. The diagnostic packet stream, in one embodiment, is an IEEE 802.1ag continuity check message and is transported to a destination object periodically across a communications network. Upon receipt of a returning packet stream from the destination object, the process broadcasts loop detection at a port level in response to the comparison between the returning packet stream and the diagnostic packet stream.Type: GrantFiled: December 3, 2008Date of Patent: May 14, 2013Assignee: Tellabs Operations Inc.Inventors: Sumit Guha, Tejeswar Pichuka, Sanjoy Bardhan, Pawan K. Singal