Patents by Inventor Sandeep Kamath

Sandeep Kamath 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: 11949578
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods provide adaptive probing of a service path in a network, wherein the service path includes a plurality of legs. The systems and methods include, for one or more legs of the plurality of legs, sending a number of probes using one of a plurality of protocols; responsive to receiving a response from the number of probes, determining the one of the plurality of protocols is successful and storing this protocol the one or more legs; and, responsive to failure to receive the response, sending a number of probes using another one of the plurality of protocols and continuing until a successful protocol is determined or all of the plurality of protocols fail.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 2, 2024
    Assignee: Zscaler, Inc.
    Inventors: Sandeep Kamath, Pankaj Chhabra
  • Patent number: 11949577
    Abstract: Techniques for determining the path of User Datagram Protocol (UDP) traceroute probes using Transmission Control Protocol (TCP) and Internet Control Message Protocol (ICMP). Various embodiments include sending a plurality of probes to one or more legs in a network path; obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path; and performing one or more actions based on the measurements from each of the plurality of probes. The steps further include overlapping the measurements to determine latency to a destination and identifying throttling of UDP traffic based on the overlapping of measurements from the plurality of probes.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: April 2, 2024
    Assignee: Zscaler, Inc.
    Inventors: Chakkaravarthy Periyasamy Balaiah, Sandeep Kamath, Srikanth Devarajan, Pankaj Chhabra
  • Patent number: 11863415
    Abstract: Techniques for using trace with tunnels and cloud-based systems for determining measures of network performance are presented. In an embodiment, a method includes determining a client application is being executed; determining an endpoint associated with the client application, based on any of monitoring application logs associated with the client application and network flows associated with the client application; and causing one or more probes to the determined endpoint and deriving metrics based on the one or more probes for determining performance of the client application.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: January 2, 2024
    Assignee: Zscaler, Inc.
    Inventors: Chakkaravarthy Periyasamy Balaiah, Sandeep Kamath, Khaireddine Mazboudi, Pankaj Chhabra
  • Patent number: 11863391
    Abstract: Systems and methods include connecting to and authenticating a plurality of user devices; utilizing a plurality of RESTful (Representational State Transfer web service) endpoints to communicate with the plurality of user devices; providing any of policy and configuration to the plurality of user devices utilizing version number via a RESTful endpoint; caching the any of policy and configuration for each device of the plurality of user devices; and receiving metrics based on measurements at the plurality of user devices according to corresponding policy and configuration, via a RESTful endpoint.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: January 2, 2024
    Assignee: Zscaler, Inc.
    Inventors: Sushil Pangeni, Srikanth Devarajan, Ajit Singh, Chenglong Zheng, Sandeep Kamath, Di Wang
  • Publication number: 20230385364
    Abstract: A cloud service is executed on a plurality of nodes, each including at least one processor, and the cloud service is configured to communicate with a plurality of user devices, each user device associated with a user from an organization of a plurality of organizations, and each user device includes a plugin or browser extension installed thereon, provide configuration information to any of the plurality of user devices where the configuration information includes a plurality of domains to be monitored by the plugin or browser extension, wherein the plugin or browser extension is configured to monitor and/or determine real user monitoring (RUM) statistics when a given user device accesses one of the plurality of domains; and receive the RUM statistics from any of the plurality of user devices.
    Type: Application
    Filed: March 21, 2023
    Publication date: November 30, 2023
    Inventors: Vaibhav Aher, Khaireddine Mazboudi, Sandeep Kamath, Srikanth Devarajan, Chakkaravarthy Periyasamy Balaiah
  • Patent number: 11811623
    Abstract: Techniques for deep tracing of one or more users via a cloud-based system include receiving a request from an administrator to actively troubleshoot a user; causing a user device associated with the user to create a deep tracing session based on the request; assisting the user device in performing one or more traces of a plurality of traces to a destination; receiving results from any of the plurality of traces and results from metrics collected at the user device; and displaying a network map between the user device and the destination.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: November 7, 2023
    Assignee: Zscaler, Inc.
    Inventors: Amit Sinha, Srikanth Devarajan, Chakkaravarthy Periyasamy Balaiah, Khaireddine Mazboudi, Sandeep Kamath Voderbet, Sushil Pangeni, Pratap Ramachandra, Amber Wu
  • Publication number: 20230344917
    Abstract: Techniques for processing web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic. A method implemented by a connector includes intercepting a Hypertext Transfer Protocol Secure (HTTPS) web probe request to a server, identifying a cache hit associated with the request in a cache, generating a synthetic Hypertext Transfer Protocol (HTTP) response based on information from the identified cache hit, wherein the generated synthetic HTTP response includes an extension header containing collected statistics, and sending the synthetic HTTP response. The method can further include simulating a Secure Socket Layer (SSL) handshake to estimate SSL cost.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Inventors: John A. Chanak, Chakkaravarthy Periyasamy Balaiah, Sandeep Kamath, Vikas Mahajan, Barrett Hostetter-Lewis, Gregory Rybinski, Rishabh Gupta, Pankaj Chhabra
  • Patent number: 11784904
    Abstract: Techniques for using trace with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include determining a number of hops from a source that is the user device and a destination, including determining metrics from the source to the destination; performing a trace to all intermediate nodes between the source and the destination, including determining metrics from the source to each of the intermediate nodes; and combining and presenting the metrics from the source to the destination and from the source to each of the intermediate nodes.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: October 10, 2023
    Assignee: Zscaler, Inc.
    Inventor: Sandeep Kamath
  • Patent number: 11770319
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods implemented by a traceroute application implementing a Transmission Control Protocol (TCP) stack in a processing device include sending a plurality of TCP packets via a raw socket to perform a trace to a destination; receiving responses to the plurality of TCP packets; detecting the responses in the TCP stack and diverting the responses to the raw socket; and aggregating the responses by the traceroute application to determine details of a service path from the processing device to the destination.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 26, 2023
    Assignee: Zscaler, Inc.
    Inventors: Sandeep Kamath, Chenglong Zheng, Vladimir Stepanenko, Srikanth Devarajan
  • Patent number: 11758025
    Abstract: Techniques for using trace with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include obtaining policy information related to a trace; performing a plurality of traces, from a start point to an end point in a network, using the different protocols based on the policy information; evaluating which of the plurality of traces reach the end point, and evaluating any of average latency of the plurality of traces, average loss of the plurality of traces, and a number of hops found, for each of the plurality of traces that reach the end point; and selecting a protocol of the different protocols to use for the trace based on the evaluating. The different protocols include Internet Control Message Protocol (ICMP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP).
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: September 12, 2023
    Assignee: Zscaler, Inc.
    Inventors: Pankaj Chhabra, Sandeep Kamath
  • Publication number: 20230283537
    Abstract: Techniques for determining the path of User Datagram Protocol (UDP) traceroute probes using Transmission Control Protocol (TCP) and Internet Control Message Protocol (ICMP). Various embodiments include sending a plurality of probes to one or more legs in a network path; obtaining measurements from each of the plurality of probes for each of the one or more legs in the network path; and performing one or more actions based on the measurements from each of the plurality of probes. The steps further include overlapping the measurements to determine latency to a destination and identifying throttling of UDP traffic based on the overlapping of measurements from the plurality of probes.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Inventors: Chakkaravarthy Periyasamy Balaiah, Sandeep Kamath, Srikanth Devarajan, Pankaj Chhabra
  • Patent number: 11647067
    Abstract: Techniques for using web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic through a proxy including where the traffic is encrypted. A method implemented by a proxy includes receiving a response to a first web probe to a destination server; caching data associated with the response to the first web probe in a cache; receiving a request for a second web probe to the destination server; and serving a response to the second web probe utilizing the data in the cache in lieu of forwarding the second web probe to the destination server.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: May 9, 2023
    Assignee: Zscaler, Inc.
    Inventors: Chenglong Zheng, Srikanth Devarajan, Vikas Mahajan, Sandeep Kamath Voderbet
  • Patent number: 11637766
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include requesting a trace to a destination with a signature inserted into a trace packet; receiving a response to the trace packet; when the response does not include tunnel info, providing details in the response to a service where the details include parameters associated with a service path between the client and the destination; and, when the response includes tunnel info, segmenting the service path into a plurality of legs, causing a trace for each of the plurality of legs, and aggregating details for each of the plurality of legs based on the causing.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 25, 2023
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Chenglong Zheng, Ajit Singh, Sandeep Kamath, Chakkaravarthy Periyasamy Balaiah, Vladimir Stepanenko
  • Publication number: 20230122630
    Abstract: Techniques for using trace with tunnels and cloud-based systems for determining measures of network performance are presented. In an embodiment, a method includes determining a client application is being executed; determining an endpoint associated with the client application, based on any of monitoring application logs associated with the client application and network flows associated with the client application; and causing one or more probes to the determined endpoint and deriving metrics based on the one or more probes for determining performance of the client application.
    Type: Application
    Filed: November 10, 2022
    Publication date: April 20, 2023
    Inventors: Chakkaravarthy Periyasamy Balaiah, Sandeep Kamath, Khaireddine Mazboudi, Pankaj Chhabra
  • Patent number: 11546240
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include periodically performing a full trace, at a first interval, to a destination; periodically performing a short trace, at a second interval that is less than the first interval, to a node in a cloud-based system; responsive to detection of issues based on the short trace, performing a full trace to the destination; and providing results of any of the full trace, the short trace, and any associated issues detected based thereon.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: January 3, 2023
    Assignee: Zscaler, Inc.
    Inventors: Sandeep Kamath Voderbet, Chakkaravarthy Periyasamy Balaiah, Srikanth Devarajan
  • Publication number: 20220393943
    Abstract: Systems and methods include connecting to and authenticating a plurality of user devices; utilizing a plurality of RESTful (Representational State Transfer web service) endpoints to communicate with the plurality of user devices; providing any of policy and configuration to the plurality of user devices utilizing version number via a RESTful endpoint; caching the any of policy and configuration for each device of the plurality of user devices; and receiving metrics based on measurements at the plurality of user devices according to corresponding policy and configuration, via a RESTful endpoint.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 8, 2022
    Inventors: Sushil Pangeni, Srikanth Devarajan, Ajit Singh, Chenglong Zheng, Sandeep Kamath, Di Wang
  • Publication number: 20220286494
    Abstract: Techniques for using web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic through a proxy including where the traffic is encrypted. A method implemented by a proxy includes receiving a response to a first web probe to a destination server; caching data associated with the response to the first web probe in a cache; receiving a request for a second web probe to the destination server; and serving a response to the second web probe utilizing the data in the cache in lieu of forwarding the second web probe to the destination server.
    Type: Application
    Filed: April 20, 2021
    Publication date: September 8, 2022
    Inventors: Chenglong Zheng, Srikanth Devarajan, Vikas Mahajan, Sandeep Kamath Voderbet
  • Publication number: 20220278889
    Abstract: Systems and methods include monitoring user experience of one or more users accessing any of the Internet, cloud applications, and private applications; determining a user experience score for the one or more users; responsive to detecting a low user experience score for a user, performing one or more analyses on the user experience of the user; and determining a root cause of the low user experience score based on the one or more analyses. The systems and methods can include determining a remedial action for the user based on the root cause.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 1, 2022
    Inventors: Prasannakumar Jobigenahally Malleshaiah, Satish Kalipatnapu, Chakkaravarthy Periyasamy Balaiah, Javier Rodriguez Gonzalez, Jay Makwana, Sandeep Kamath, Pankaj Chhabra
  • Publication number: 20220278917
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include periodically performing a full trace, at a first interval, to a destination; periodically performing a short trace, at a second interval that is less than the first interval, to a node in a cloud-based system; responsive to detection of issues based on the short trace, performing a full trace to the destination; and providing results of any of the full trace, the short trace, and any associated issues detected based thereon.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 1, 2022
    Inventors: Sandeep Kamath Voderbet, Chakkaravarthy Periyasamy Balaiah, Srikanth Devarajan
  • Patent number: 11425015
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include performing a plurality of traces between two nodes in a service path; obtaining latency measurements for each of the plurality of traces for each of one or more hops between the two nodes; and determining average latency between each of the one or more hops based on the latency measurements, adjusted average latency for each hop, and differential average latency for each hop.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: August 23, 2022
    Assignee: Zscaler, Inc.
    Inventors: Pankaj Chhabra, Sandeep Kamath