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).

  • Publication number: 20220329459
    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: July 30, 2021
    Publication date: October 13, 2022
    Inventors: Balaji Sundararajan, Madhuri Kolli, Giorgio Valentini, Venkatraman Venkatapathy, Avinash Ashok Kumar Chiganmi, Vivek Agarwal
  • Publication number: 20220329540
    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: July 29, 2021
    Publication date: October 13, 2022
    Inventors: Srilatha Tangirala, Nithin Bangalore Raju, Ananya Raval, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan
  • Publication number: 20220329477
    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: Application
    Filed: July 29, 2021
    Publication date: October 13, 2022
    Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Karumbayiram Gunasekaran, Balaji Sundararajan
  • Patent number: 11456894
    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: Grant
    Filed: July 30, 2021
    Date of Patent: September 27, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Madhuri Kolli, Giorgio Valentini, Venkatraman Venkatapathy, Avinash Ashok Kumar Chiganmi, Vivek Agarwal
  • Patent number: 11418491
    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: Grant
    Filed: February 26, 2020
    Date of Patent: August 16, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Venkatesh Gota B R, Sireesha Yeruva, Chandramouli Balasubramanian, Anand Oswal
  • Patent number: 11411765
    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: Grant
    Filed: January 10, 2020
    Date of Patent: August 9, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Vivek Agarwal, Anand Oswal, Chethan Channappa, Subhash Kodnad, Jeevan Sharma
  • Patent number: 11412051
    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: Grant
    Filed: July 15, 2021
    Date of Patent: August 9, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Shu-Fen Lee, Balaji Sundararajan
  • Patent number: 11381478
    Abstract: In one embodiment, a method includes providing a first profile to a plurality of edge routers of the SD-WAN, the plurality of edge routers operable to interface a plurality of devices to the SD-WAN. The first profile enables the plurality of edge routers to discover which devices of the plurality of devices support a first application. The method includes receiving, from one or more of the edge routers, information indicating which devices of the plurality of devices support the first application and building a first application fabric based on the information indicating which devices of the plurality of devices support the first application.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: July 5, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Vamsidhar Valluri, Chandramouli Balasubramanian, Anand Oswal, Ram Dular Singh
  • Publication number: 20220116806
    Abstract: Systems and methods for managing traffic in a hybrid environment include monitoring traffic load of a local network to determine whether the traffic load exceeds or is likely to exceed a maximum traffic load, where the maximum traffic load is a traffic load for which a service can be provided by the local network, based on a license. An excess traffic load is determined if the traffic load exceeds or is likely to exceed the maximum traffic load. One or more external networks which have a capacity to provide the service to the excess traffic load are determined, to which the excess traffic load is migrated. The local network includes one or more service instances for providing the service for up to the maximum traffic load, and the service to the excess traffic load is provided by one or more additional service instances in the one or more external networks.
    Type: Application
    Filed: December 20, 2021
    Publication date: April 14, 2022
    Inventors: Balaji Sundararajan, Sanjay Kumar Hooda, Venkatesh Ramachandra Gota, Chandramouli Balasubramanian, Anand Oswal
  • Publication number: 20220094665
    Abstract: Systems, methods, and computer-readable media for creating service chains for inter-cloud traffic. In some examples, a system receives domain name system (DNS) queries associated with cloud domains and collects DNS information associated the cloud domains. The system spoofs DNS entries defining a subset of IPs for each cloud domain. Based on the spoofed DNS entries, the system creates IP-to-domain mappings associating each cloud domain with a respective IP from the subset of IPs. Based on the IP-to-domain mappings, the system programs different service chains for traffic between a private network and respective cloud domains. The system routes, through the respective service chain, traffic having a source associated with the private network and a destination matching the IP in the respective IP-to-domain mapping.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 24, 2022
    Inventors: Balaji Sundararajan, Samar Sharma
  • Publication number: 20220052928
    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: December 14, 2020
    Publication date: February 17, 2022
    Inventors: Balaji Sundararajan, Ankush Verma, Bhavana Malhotra Bodas, Kaushik Pratap Biswas, Chandramouli Balasubramanian, Anirudh Ramnath Ramakrishna, Madhuri Kolli
  • Patent number: 11252590
    Abstract: Systems and methods for managing traffic in a hybrid environment include monitoring traffic load of a local network to determine whether the traffic load exceeds or is likely to exceed a maximum traffic load, where the maximum traffic load is a traffic load for which a service can be provided by the local network, based on a license. An excess traffic load is determined if the traffic load exceeds or is likely to exceed the maximum traffic load. One or more external networks which have a capacity to provide the service to the excess traffic load are determined, to which the excess traffic load is migrated. The local network includes one or more service instances for providing the service for up to the maximum traffic load, and the service to the excess traffic load is provided by one or more additional service instances in the one or more external networks.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 15, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Sanjay Kumar Hooda, Venkatesh Ramachandra Gota, Chandramouli Balasubramanian, Anand Oswal
  • Publication number: 20210399920
    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: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
  • Patent number: 11153119
    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: October 15, 2019
    Date of Patent: October 19, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
  • Publication number: 20210297429
    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: March 20, 2020
    Publication date: September 23, 2021
    Inventors: Balaji Sundararajan, Gaurang Rajeev Mokashi, Preety Mordani, Vivek Agarwal
  • Patent number: 11122008
    Abstract: Systems, methods, and computer-readable media for creating service chains for inter-cloud traffic. In some examples, a system receives domain name system (DNS) queries associated with cloud domains and collects DNS information associated the cloud domains. The system spoofs DNS entries defining a subset of IPs for each cloud domain. Based on the spoofed DNS entries, the system creates IP-to-domain mappings associating each cloud domain with a respective IP from the subset of IPs. Based on the IP-to-domain mappings, the system programs different service chains for traffic between a private network and respective cloud domains. The system routes, through the respective service chain, traffic having a source associated with the private network and a destination matching the IP in the respective IP-to-domain mapping.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: September 14, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Balaji Sundararajan, Samar Sharma
  • Patent number: 11108763
    Abstract: In one embodiment, a method by a first network apparatus includes receiving a request to access a resource from a client device associated with a user, determining that the request does not comprise a session cookie, sending an authorization request to a second network apparatus, receiving an authorization response including a resource authorization token from the second network apparatus, determining that the user is authorized to access the resource using the client device based on the received resource authorization token, establishing a first communication session with the client device by sending a message to the client device, and establishing a second communication session with a resource server that provides the resource, where the first network apparatus relays traffic between the client device and the resource server.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: August 31, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Balaji Sundararajan, Vivek Agarwal, Darrin Joseph Miller, Anand Oswal, Chandramouli Balasubramanian
  • Publication number: 20210266291
    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: February 26, 2020
    Publication date: August 26, 2021
    Inventors: Balaji Sundararajan, Venkatesh Gota B R, Sireesha Yeruva, Chandramouli Balasubramanian, Anand Oswal
  • Publication number: 20210218726
    Abstract: In one embodiment, a method by a first network apparatus includes receiving a request to access a resource from a client device associated with a user, determining that the request does not comprise a session cookie, sending an authorization request to a second network apparatus, receiving an authorization response including a resource authorization token from the second network apparatus, determining that the user is authorized to access the resource using the client device based on the received resource authorization token, establishing a first communication session with the client device by sending a message to the client device, and establishing a second communication session with a resource server that provides the resource, where the first network apparatus relays traffic between the client device and the resource server.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 15, 2021
    Inventors: Balaji Sundararajan, Vivek Agarwal, Darrin Joseph Miller, Anand Oswal, Chandramouli Balasubramanian
  • Publication number: 20210218594
    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: January 10, 2020
    Publication date: July 15, 2021
    Inventors: Balaji Sundararajan, Vivek Agarwal, Anand Oswal, Chethan Channappa, Subhash Kodnad, Jeevan Sharma