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).
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Patent number: 11502871Abstract: 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: GrantFiled: September 3, 2021Date of Patent: November 15, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
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Publication number: 20220326995Abstract: 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: ApplicationFiled: July 30, 2021Publication date: October 13, 2022Inventors: Xiaohu Wang, Ajeet Pal Singh Gill, Srilatha Tangirala, Nithin Bangalore Raju, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan
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Publication number: 20220329540Abstract: 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: ApplicationFiled: July 29, 2021Publication date: October 13, 2022Inventors: Srilatha Tangirala, Nithin Bangalore Raju, Ananya Raval, Prabahar Radhakrishnan, Vivek Agarwal, Balaji Sundararajan
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Publication number: 20220329459Abstract: 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: ApplicationFiled: July 30, 2021Publication date: October 13, 2022Inventors: Balaji Sundararajan, Madhuri Kolli, Giorgio Valentini, Venkatraman Venkatapathy, Avinash Ashok Kumar Chiganmi, Vivek Agarwal
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Publication number: 20220329477Abstract: 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: ApplicationFiled: July 29, 2021Publication date: October 13, 2022Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Karumbayiram Gunasekaran, Balaji Sundararajan
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Patent number: 11456894Abstract: 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: GrantFiled: July 30, 2021Date of Patent: September 27, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Madhuri Kolli, Giorgio Valentini, Venkatraman Venkatapathy, Avinash Ashok Kumar Chiganmi, Vivek Agarwal
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Patent number: 11418491Abstract: 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: GrantFiled: February 26, 2020Date of Patent: August 16, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Venkatesh Gota B R, Sireesha Yeruva, Chandramouli Balasubramanian, Anand Oswal
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Patent number: 11411765Abstract: 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: GrantFiled: January 10, 2020Date of Patent: August 9, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Vivek Agarwal, Anand Oswal, Chethan Channappa, Subhash Kodnad, Jeevan Sharma
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Patent number: 11412051Abstract: 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: GrantFiled: July 15, 2021Date of Patent: August 9, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Avinash Ashok Kumar Chiganmi, Venkatraman Venkatapathy, Giorgio Valentini, Madhuri Kolli, Shu-Fen Lee, Balaji Sundararajan
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Patent number: 11381478Abstract: 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: GrantFiled: January 4, 2021Date of Patent: July 5, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Vamsidhar Valluri, Chandramouli Balasubramanian, Anand Oswal, Ram Dular Singh
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Publication number: 20220116806Abstract: 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: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Inventors: Balaji Sundararajan, Sanjay Kumar Hooda, Venkatesh Ramachandra Gota, Chandramouli Balasubramanian, Anand Oswal
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Publication number: 20220094665Abstract: 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: ApplicationFiled: September 9, 2021Publication date: March 24, 2022Inventors: Balaji Sundararajan, Samar Sharma
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Publication number: 20220052928Abstract: 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: ApplicationFiled: December 14, 2020Publication date: February 17, 2022Inventors: Balaji Sundararajan, Ankush Verma, Bhavana Malhotra Bodas, Kaushik Pratap Biswas, Chandramouli Balasubramanian, Anirudh Ramnath Ramakrishna, Madhuri Kolli
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Patent number: 11252590Abstract: 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: GrantFiled: November 1, 2019Date of Patent: February 15, 2022Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Sanjay Kumar Hooda, Venkatesh Ramachandra Gota, Chandramouli Balasubramanian, Anand Oswal
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Publication number: 20210399920Abstract: 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: ApplicationFiled: September 3, 2021Publication date: December 23, 2021Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
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Patent number: 11153119Abstract: 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: GrantFiled: October 15, 2019Date of Patent: October 19, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Vivek Agarwal, Harish A. Kapadia
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Publication number: 20210297429Abstract: 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: ApplicationFiled: March 20, 2020Publication date: September 23, 2021Inventors: Balaji Sundararajan, Gaurang Rajeev Mokashi, Preety Mordani, Vivek Agarwal
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Patent number: 11122008Abstract: 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: GrantFiled: May 8, 2020Date of Patent: September 14, 2021Assignee: Cisco Technology, Inc.Inventors: Balaji Sundararajan, Samar Sharma
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Patent number: 11108763Abstract: 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: GrantFiled: January 9, 2020Date of Patent: August 31, 2021Assignee: CISCO TECHNOLOGY, INC.Inventors: Balaji Sundararajan, Vivek Agarwal, Darrin Joseph Miller, Anand Oswal, Chandramouli Balasubramanian
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Publication number: 20210266291Abstract: 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: ApplicationFiled: February 26, 2020Publication date: August 26, 2021Inventors: Balaji Sundararajan, Venkatesh Gota B R, Sireesha Yeruva, Chandramouli Balasubramanian, Anand Oswal