Patents by Inventor Bhupendra Yadav
Bhupendra Yadav 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: 20240113962Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: ApplicationFiled: December 5, 2023Publication date: April 4, 2024Inventors: Clarence FILSFILS, Zafar ALI, Syed Kamran RAZA, Ahmed Refaat BASHANDY, Nagendra Kumar NAINAR, Carlos M. PIGNATARO, Jaganbabu RAJAMANICKAM, Rakesh GANDHI, Bhupendra YADAV, Faisal IQBAL
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Patent number: 11924090Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: GrantFiled: December 28, 2022Date of Patent: March 5, 2024Assignee: Cisco Technology, Inc.Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Publication number: 20240073125Abstract: Systems and methods for dynamic path computation in networks based on automatically detected unavoidable risks include receiving a plurality of shared risks associated with any of one or more network layers, network links, and network equipment; automatically creating a local ignore list for a source node and a remote ignore list for a destination node, based on the plurality of shared risks; and utilizing the plurality of shared risks in a path computation for a path between the source node and the destination node and ignoring any of the plurality of shared risks in the local ignore list and the remote ignore list.Type: ApplicationFiled: August 29, 2022Publication date: February 29, 2024Inventors: Bhupendra Yadav, Prabhu Vaithilingam, Gerald Smallegange
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Patent number: 11909622Abstract: Systems and methods for extended protection in a Segment Routing network that utilizes Flexible Algorithm include defining a first Flexible Algorithm that segregates the Segment Routing network into a first subset network that excludes any of links and nodes from the Segment Routing network; defining a second Flexible Algorithm that segregates the Segment Routing network into a second subset network, different from the first subset network; and defining extended protection for the first Flexible Algorithm with the second Flexible Algorithm whereby the second Flexible Algorithm is usable for path to protect the first Flexible Algorithm.Type: GrantFiled: June 27, 2023Date of Patent: February 20, 2024Assignee: Ciena CorporationInventors: Bhupendra Yadav, Prabhu Vaithilingam Vaithilingam, Gerald Smallegange, Alwyn Joy George
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Patent number: 11863435Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: GrantFiled: July 8, 2022Date of Patent: January 2, 2024Assignee: Cisco Technology, Inc.Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Publication number: 20230275827Abstract: Systems and methods for computing forward and reverse paths and checking the liveness, keep-alive status, or continuity of the forward and reverse paths are provided. A method, according to one implementation, includes the step of creating one or more messages related to a computation of a forward path from a head-end node to a tail-end node and a computation of a reverse path from the tail-end node to the head-end node. The method also includes the step of adding a data object to the one or more messages, the data object including an intent to check the liveness of the forward path and reverse path.Type: ApplicationFiled: February 28, 2022Publication date: August 31, 2023Inventors: Bhupendra Yadav, Senthil Balakrishnan, Shashanka Shobhit Shankara
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Publication number: 20230135261Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: ApplicationFiled: December 28, 2022Publication date: May 4, 2023Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Publication number: 20220417137Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: ApplicationFiled: July 8, 2022Publication date: December 29, 2022Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Patent number: 11388088Abstract: In one embodiment, segment routing (SR) network processing of packets is performed which includes operations signaling and processing of packets in manners providing processing and/or memory efficiencies. One embodiment includes acquiring a segment routing particular packet by a particular router in a network. Responsive to the particular router data plane ascertained during fast path processing by a fast path processing unit that the segment routing particular packet is to be Operations, Administration, and Maintenance (OAM) processed by a different processing unit in the particular router, communicating a time stamp of a current time and the segment routing particular packet including a segment routing header that includes OAM signaling from said fast path processing to the different processing unit, with fast path processing being hardware-based packet processing by the fast path processing unit. The segment routing particular packet is OAM processing by the different processing unit.Type: GrantFiled: November 5, 2019Date of Patent: July 12, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Patent number: 11271854Abstract: A source node in a first domain in a multi-domain network includes a plurality of ports; and switching circuitry configured to forward packets between the plurality of ports, wherein the source node is configured to, for a packet destined for a destination node in another domain in the multi-domain network, add a list of Segment Identifiers (SIDs) to the packet for loose source-based routing from the source node, through the first domain, and to the another domain, and forward the packet via a port of the plurality of ports and with the list of SIDs, wherein the list of SIDs includes at least one SID representing both an anycast SID and a binding SID. The SID is associated with an anycast group that includes a plurality of nodes, and with a binding segment in the second domain, the binding segment includes a different SID list for each node of the plurality of nodes.Type: GrantFiled: February 21, 2020Date of Patent: March 8, 2022Assignee: Ciena CorporationInventors: Bhupendra Yadav, Anand Srinivasan, Gerald Smallegange
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Publication number: 20210266251Abstract: A source node in a first domain in a multi-domain network includes a plurality of ports; and switching circuitry configured to forward packets between the plurality of ports, wherein the source node is configured to, for a packet destined for a destination node in another domain in the multi-domain network, add a list of Segment Identifiers (SIDs) to the packet for loose source-based routing from the source node, through the first domain, and to the another domain, and forward the packet via a port of the plurality of ports and with the list of SIDs, wherein the list of SIDs includes at least one SID representing both an anycast SID and a binding SID. The SID is associated with an anycast group that includes a plurality of nodes, and with a binding segment in the second domain, the binding segment includes a different SID list for each node of the plurality of nodes.Type: ApplicationFiled: February 21, 2020Publication date: August 26, 2021Inventors: Bhupendra Yadav, Anand Srinivasan, Gerald Smallegange
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Publication number: 20200076727Abstract: In one embodiment, a service chain data packet is instrumented as it is communicated among network nodes in a network providing service-level and/or networking operations visibility. The service chain data packet includes a particular header identifying a service group defining one or more service functions, and is a data packet and not a probe packet. A network node adds networking and/or service-layer operations data to the particular service chain data packet, such as, but not limited to, in the particular header. Such networking operations data includes a performance metric or attribute related to the transport of the particular service chain packet in the network. Such service-layer operations data includes a performance metric or attribute related to the service-level processing of the particular service chain data packet in the network.Type: ApplicationFiled: November 5, 2019Publication date: March 5, 2020Applicant: Cisco Technology, Inc., a California corporationInventors: Clarence FILSFILS, Zafar ALI, Syed Kamran RAZA, Ahmed Refaat BASHANDY, Nagendra Kumar NAINAR, Carlos M. PIGNATARO, Jaganbabu RAJAMANICKAM, Rakesh GANDHI, Bhupendra YADAV, Faisal IQBAL
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Patent number: 10469367Abstract: In one embodiment, segment routing (SR) network processing of packets is performed which includes operations signaling and processing of packets in manners providing processing and/or memory efficiencies. One embodiment includes acquiring a segment routing particular packet by a particular router in a network. Responsive to the particular router data plane ascertained during fast path processing by a fast path processing unit that the segment routing particular packet is to be Operations, Administration, and Maintenance (OAM) processed by a different processing unit in the particular router, communicating a time stamp of a current time and the segment routing particular packet including a segment routing header that includes OAM signaling from said fast path processing to the different processing unit, with fast path processing being hardware-based packet processing by the fast path processing unit. The segment routing particular packet is OAM processing by the different processing unit.Type: GrantFiled: December 13, 2017Date of Patent: November 5, 2019Assignee: Cisco Technology, Inc.Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal
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Publication number: 20190104058Abstract: In one embodiment, segment routing (SR) network processing of packets is performed which includes operations signaling and processing of packets in manners providing processing and/or memory efficiencies. One embodiment includes acquiring a segment routing particular packet by a particular router in a network. Responsive to the particular router data plane ascertained during fast path processing by a fast path processing unit that the segment routing particular packet is to be Operations, Administration, and Maintenance (OAM) processed by a different processing unit in the particular router, communicating a time stamp of a current time and the segment routing particular packet including a segment routing header that includes OAM signaling from said fast path processing to the different processing unit, with fast path processing being hardware-based packet processing by the fast path processing unit. The segment routing particular packet is OAM processing by the different processing unit.Type: ApplicationFiled: December 13, 2017Publication date: April 4, 2019Applicant: Cisco Technology, Inc.Inventors: Clarence Filsfils, Zafar Ali, Syed Kamran Raza, Ahmed Refaat Bashandy, Nagendra Kumar Nainar, Carlos M. Pignataro, Jaganbabu Rajamanickam, Rakesh Gandhi, Bhupendra Yadav, Faisal Iqbal