Patents by Inventor Balaji Sundararajan

Balaji Sundararajan 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).

  • Patent number: 11757702
    Abstract: The present technology discloses methods, systems, and non-transitory computer-readable storage media for establishing a redundant path connection. An example method can include configuring a software-defined wide-area network (SDWAN) tunnel between an on-premises router and a plurality of SDWAN routers; configuring a virtual layer 2 connection between the plurality of SDWAN routers and handoff locations for a virtual cloud resource (VCR) associated with at least one VCR tag, wherein a software-defined cloud infrastructure (SDCI) underlay associated with at least one SDCI provider connects to a cloud service provider (CSP) at the handoff locations; configuring a VCR connection between at least one VCR associated with the VCR tag and the handoff locations for the at least one VCR; configuring a border gateway protocol (BGP) session between the plurality of SDWAN routers and the handoff locations; and validating the SDWAN tunnel, the virtual layer 2 connection, the VCR connection, and the BGP session.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: September 12, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Karumbayiram Gunasekaran, Balaji Sundararajan
  • Patent number: 11722410
    Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: August 8, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Khalil A. Jabr, Anand Oswal, Vivek Agarwal, Chandramouli Balasubramanian
  • Publication number: 20230208863
    Abstract: Systems, methods, and computer-readable media for performing threat remediation through a switch fabric of a virtualized network environment. Data traffic passing into a virtualized network environment including a plurality of virtual machines running on a switch fabric is monitored. A network threat introduced through at a least a portion of the data traffic is identified at the switch fabric. One or more remedial measures are performed in the network environment based on the identification of the network threat in the virtualized network environment.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Balaji Sundararajan, Gaurang Rajeev Mokashi, Preety Mordani, Vivek Agarwal
  • Publication number: 20230198868
    Abstract: Methods, systems, and non-transitory computer-readable media are provided for deploying intent-driving cloud branches. An example method can include obtaining, by one or more controllers in a software-defined network (SDN), a branch network design template for deploying a remote branch in the SDN, wherein the branch network design template defines networking settings for a plurality of services to be provisioned at the remote branch; obtaining, by the one or more controllers, a plurality of software packages for the plurality of services to be provisioned at the remote branch; and based on the branch network design template and the plurality of software packages, provisioning, by the one or more controllers, the plurality of services at the remote branch and a network connectivity of the plurality of services.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 22, 2023
    Inventors: Balaji Sundararajan, Ankush Verma, Bhavana Malhotra Bodas, Kaushik Pratap Biswas, Chandramouli Balasubramanian, Anirudh Ramnath Ramakrishna, Madhuri Kolli
  • Publication number: 20230188476
    Abstract: Route exchange in a plurality of network controller appliances on a per-tenant basis is disclosed. In one aspect, a method includes receiving, from a network management system and at a first network controller appliance, a designation of at least two tenants to be hosted on the first network controller appliance, the first network controller appliance being one of a plurality of network controller appliances in a SD-WAN; sending, from the first network controller appliance to other network controller appliances of the plurality of network controller appliances, a tenant list query message to obtain a corresponding tenant list of each of the other network controller appliances; and receiving a corresponding response from each of the other network controller appliances indicating the corresponding tenant list of each of the other network controller appliances, the corresponding response being used to update the tenant list on the first network controller appliance.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Inventors: Srilatha Tangirala, Nithin Bangalore Raju, Ananya Raval, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan
  • Publication number: 20230188502
    Abstract: In one embodiment, a method includes identifying, by a router, a first tenant. The first tenant is associated with a first tenant virtual private network (VPN). The method also includes determining, by the router, a mapping of the first tenant VPN to a first device VPN and generating, by the router, a first label representing the first device VPN. The method further includes adding, by the router, the first label to a first network packet and communicating, by the router, the first network packet with the first label to a controller.
    Type: Application
    Filed: March 31, 2022
    Publication date: June 15, 2023
    Inventors: Samir Thoria, Ajeet Pal Singh Gill, Srilatha Tangirala, Balaji Sundararajan, Nithin Bangalore Raju, Vivek Agarwal
  • Publication number: 20230116947
    Abstract: Techniques for providing network traffic security in a virtualized environment are described. A threat aware controller uses a threat feed provided by a threat intelligence service to establish a threat detection engine on virtual switches. The threat aware controller and threat detection engine work together to detect any anomalous or malicious behavior of network traffic on the virtual switch and established virtual network functions to quickly detect, verify, and isolate network threats.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 20, 2023
    Inventors: Balaji SUNDARARAJAN, Alberto RODRIGUEZ NATAL, Yegappan LAKSHMANAN, Fabio R. MAINO, Anand OSWAL
  • Publication number: 20230103683
    Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.
    Type: Application
    Filed: November 29, 2022
    Publication date: April 6, 2023
    Inventors: Balaji Sundararajan, Khalil A. Jabr, Anand Oswal, Vivek Agarwal, Chandramouli Balasubramanian
  • Publication number: 20230077361
    Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventors: Balaji Sundararajan, Khalil A. Jabr, Anand Oswal, Vivek Agarwal, Chandramouli Balasubramanian
  • Patent number: 11606369
    Abstract: Systems, methods, and computer-readable media for performing threat remediation through a switch fabric of a virtualized network environment. Data traffic passing into a virtualized network environment including a plurality of virtual machines running on a switch fabric is monitored. A network threat introduced through at a least a portion of the data traffic is identified at the switch fabric. One or more remedial measures are performed in the network environment based on the identification of the network threat in the virtualized network environment.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 14, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Gaurang Rajeev Mokashi, Preety Mordani, Vivek Agarwal
  • Patent number: 11588711
    Abstract: Methods, systems, and non-transitory computer-readable media are provided for deploying intent-driving cloud branches. An example method can include obtaining, by one or more controllers in a software-defined network (SDN), a branch network design template for deploying a remote branch in the SDN, wherein the branch network design template defines networking settings for a plurality of services to be provisioned at the remote branch; obtaining, by the one or more controllers, a plurality of software packages for the plurality of services to be provisioned at the remote branch; and based on the branch network design template and the plurality of software packages, provisioning, by the one or more controllers, the plurality of services at the remote branch and a network connectivity of the plurality of services.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 21, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Ankush Verma, Bhavana Malhotra Bodas, Kaushik Pratap Biswas, Chandramouli Balasubramanian, Anirudh Ramnath Ramakrishna, Madhuri Kolli
  • Patent number: 11588752
    Abstract: Route exchange in a plurality of network controller appliances on a per-tenant basis is disclosed. In one aspect, a method includes receiving, from a network management system and at a first network controller appliance, a designation of at least two tenants to be hosted on the first network controller appliance, the first network controller appliance being one of a plurality of network controller appliances in a SD-WAN; sending, from the first network controller appliance to other network controller appliances of the plurality of network controller appliances, a tenant list query message to obtain a corresponding tenant list of each of the other network controller appliances; and receiving a corresponding response from each of the other network controller appliances indicating the corresponding tenant list of each of the other network controller appliances, the corresponding response being used to update the tenant list on the first network controller appliance.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: February 21, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Srilatha Tangirala, Nithin Bangalore Raju, Ananya Raval, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan
  • Patent number: 11558402
    Abstract: Techniques for providing network traffic security in a virtualized environment are described. A threat aware controller uses a threat feed provided by a threat intelligence service to establish a threat detection engine on virtual switches. The threat aware controller and threat detection engine work together to detect any anomalous or malicious behavior of network traffic on the virtual switch and established virtual network functions to quickly detect, verify, and isolate network threats.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: January 17, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Alberto Rodriguez Natal, Yegappan Lakshmanan, Fabio R. Maino, Anand Oswal
  • Publication number: 20220417060
    Abstract: The present technology pertains to receiving a tag associating at least one routing domain in an on-premises site with at least one virtual network in a cloud environment associated with a cloud service provider. The present technology also pertains to the automation of populating route and propagation tables with the cloud service provider.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Inventors: Balaji Sundararajan, Madhuri Kolli, Giorgio Valentini, Venkatraman Venkatapathy, Avinash Ashok Kumar Chiganmi, Vivek Agarwal
  • Publication number: 20220417332
    Abstract: The present technology is directed to controlling and managing resources both in Software-Defined Cloud Interconnect (SDCI) providers and cloud service providers via a single network controller and further connecting virtual networks in a branch site to virtual networks in the cloud service providers. A network controller can establish a network gateway in an SDCI provider, establish a cross-connectivity between the network gateway in the SDCI provider and one or more clouds, group one or more virtual networks in the one or more clouds and one or more virtual networks in a branch site into a tag, and establish a connection between the one or more virtual networks in the one or more clouds and the one or more virtual networks in the branch site using the tag.
    Type: Application
    Filed: July 5, 2022
    Publication date: December 29, 2022
    Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Shu-Fen Lee, Balaji Sundararajan
  • Patent number: 11533257
    Abstract: Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: December 20, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Khalil A. Jabr, Anand Oswal, Vivek Agarwal, Chandramouli Balasubramanian
  • Publication number: 20220376982
    Abstract: The present disclosure is directed to managing industrial internet of things end points and includes one or more processors and one or more computer-readable non-transitory storage media coupled to the one or more processors and comprising instructions that, when executed by the one or more processors, cause one or more switches to perform operations comprising: identifying a first end point using a protocol associated with the first end point, determining a classification for the identified first end point based on one or more attributes of the first end point, identifying one or more related end points having the classification in common with the first end point, segmenting the first end point with the identified one or more related end points, and applying one or more policies to the segmented first end point and the one or more related end points.
    Type: Application
    Filed: August 8, 2022
    Publication date: November 24, 2022
    Inventors: Balaji Sundararajan, Vivek Agarwal, Anand Oswal, Chethan Channappa, Subhash Kodnad, Jeevan Sharma
  • Publication number: 20220377053
    Abstract: The present disclosure is directed to systems and methods for dynamic firewall discovery on a service plane. The method includes the steps of identifying a source data packet for transmission from a source machine at a source site to a destination machine at a destination site, wherein the source data packet corresponds to a request for connection between the source machine and the destination machine over a WAN, inspecting the source data packet at a first firewall associated with the source site, marking the source data packet with a marker to indicate inspection by the first firewall, transmitting the marked source data packet to the destination site, determining at the destination site that the source data packet has been inspected based on the marker, and forwarding the source data packet to the destination machine at the destination site, without inspection of the source data packet by a second firewall associated with the destination site.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Balaji Sundararajan, Venkatesh Gota B R, Sireesha Yeruva, Chandramouli Balasubramanian, Anand Oswal
  • Patent number: 11502871
    Abstract: A network controller can register WAN edge routers and WAN optimizers distributed across a WAN. The controller can receive a request to establish a WAN optimized connection between first and second hosts. The controller can identify a first WAN optimizer to perform first services (e.g., de-duplication, compression, application acceleration, caching, etc.) for first traffic from the first host to the second host and first complementary services for second traffic from the second host to the first host, and a second WAN optimizer for the second traffic and second complementary services for the first traffic. The controller can establish the optimized connection comprising a first path including the first host, WAN optimizer, and router; a second path including the first router and a second router, and a third path including the second router, WAN optimizer, and host. The controller can route the first and second traffic through the optimized connection.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: November 15, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
  • Publication number: 20220326995
    Abstract: A method for allocating resources of a virtual controller is disclosed. The method comprises: allocating resources of a virtual controller to a first tenant, wherein the first tenant is allocated a first tenant quantity of guaranteed resources of the virtual controller and a second tenant is allocated a second tenant quantity of guaranteed resources of the virtual controller; determining that resources requested by the first tenant are greater than the first tenant quantity of guaranteed resources; determining that the virtual controller has unutilized resources sufficient to at least partially provide additional resources beyond the first tenant quantity of guaranteed resources to the first tenant; and temporarily provisioning the additional resources to the first tenant, wherein the additional resources are greater than the first tenant quantity of guaranteed resources.
    Type: Application
    Filed: July 30, 2021
    Publication date: October 13, 2022
    Inventors: Xiaohu Wang, Ajeet Pal Singh Gill, Srilatha Tangirala, Nithin Bangalore Raju, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan