Patents by Inventor Sudip Regmi

Sudip Regmi 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: 10445089
    Abstract: A method and apparatus of a network element that hitlessly upgrades a network element operating system of a network element is described. In an exemplary embodiment, the network element hitlessly upgrades the network element operating system by instantiating a second container and starts a second set of processes using a second image of the network element operating system in the second container. In addition, the network element executes a first image of the network element operating system as a first set of processes in a first container. The network element additionally synchronizes state data between the first set of processes and the second set of processes. Furthermore, the network element sets the second set of processes as managing a plurality of hardware tables, and stops the first set of processes within the first container.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 15, 2019
    Assignee: Arista Networks, Inc.
    Inventors: Sudip Regmi, Udayakumar Srinivasan, Kenneth James Duda, Anirban Sinha
  • Patent number: 10212072
    Abstract: In general, embodiments of the invention relate to a method and system for enabling a peer state synchronization mechanism for dynamic network address translation (DNAT). More specifically, at least two network elements may be permitted to mount each other's DNAT tables, thereby providing redundancy for the implementation of DNATs in case of the failover of one of the network elements. The failed network element may then re-initialize while the functional network element continues to process packets, including packets that have been redirected to the functional network element post-failure of the failed network element. Upon completing re-initialization, the once failed network element recovers its DNAT table from the functional network element and proceeds to process packets normally.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: February 19, 2019
    Assignee: Arista Networks, Inc.
    Inventors: Jikai Yin, Sudip Regmi, Suresh Kumar Nalagatla
  • Publication number: 20180278517
    Abstract: In general, the invention relates to a method for programming a network element. The method includes detecting an addition of a first route in a routing information base (RIB) on the network element, adding, in response to detecting the addition, a first route network prefix associated with the first route to a network prefix trie (NPT), identifying, based on the adding, a first parent network prefix for the first route network prefix using the NPT, making a first determination that the first route network prefix and the first parent network prefix are reachable via a first common next hop connected to the network element, and waiving, based on the first determination, a creation of a forwarding information base (FIB) entry associated with the first route network prefix in a FIB on the network element.
    Type: Application
    Filed: March 27, 2017
    Publication date: September 27, 2018
    Inventors: Kumaran Narayanan, Sudip Regmi, Prashant Srinivas, Venkitraman Kasiviswanathan
  • Publication number: 20180246731
    Abstract: A method and apparatus of a network element that installs a device driver used to manage hardware of the network element is described. In an exemplary embodiment, the network element detects, with a functionality of a network element operating system, the hardware of a data plane of the network element, where at least one component of the network element operating system is executing in a first container as a first set of processes. The network element further determines a device driver for the hardware and installs the device driver in a kernel of the host operating system. The network element additionally manages the data, with the network element operating system, using the device driver.
    Type: Application
    Filed: June 16, 2017
    Publication date: August 30, 2018
    Inventors: Sudip Regmi, Udayakumar Srinivasan, Kenneth James Duda, Anirban Sinha
  • Publication number: 20180248769
    Abstract: A method and apparatus of a device that simulates a plurality of network elements is described. In an exemplary embodiment, the device receives network topology information for the plurality of simulated network elements. The device further instantiates a container for each of the plurality of simulated network elements. The device additionally configures a set of processes for each of the plurality of containers, where each of the set of processes simulates at least one of the plurality of simulated network elements. The plurality of set of processes further implements a network topology represented by the network topology information. The device performs a test of the network topology and saves the results of the test.
    Type: Application
    Filed: June 16, 2017
    Publication date: August 30, 2018
    Inventors: Sudip Regmi, Udayakumar Srinivasan, Kenneth James Duda, Anirban Sinha
  • Publication number: 20180248770
    Abstract: A method and apparatus of a network element that processes control plane data in a network element is described. In an exemplary embodiment, the device receives control plane data with a network element operating system, where at least a functionality of the network element operating system is executing in a container of the network element. In addition, the network element includes a data plane with a plurality of hardware tables and the host operating system. Furthermore, the network element processes the control plane data with the network element operating system. The network element additionally updates at least one of the plurality of hardware tables with the process control plane data using the network element operating system.
    Type: Application
    Filed: June 16, 2017
    Publication date: August 30, 2018
    Inventors: Sudip Regmi, Udayakumar Srinivasan, Kenneth James Duda, Anirban Sinha
  • Publication number: 20180246715
    Abstract: A method and apparatus of a network element that hitlessly upgrades a network element operating system of a network element is described. In an exemplary embodiment, the network element receives a second image for the network element operating system, where a first image of the network element operating system is executing as a first set of processes in a first container and the first set of processes manages the plurality of hardware tables for the network element. The network element further instantiates a second container for the second image. In addition, the network element starts a second set of processes using at least the second image in the second container. The network element additionally synchronizes state data between the first set of processes and the second set of processes. Furthermore, the network element sets the second set of processes as managing the plurality of hardware tables, and stops the first set of processes within the first container.
    Type: Application
    Filed: June 16, 2017
    Publication date: August 30, 2018
    Inventors: Sudip Regmi, Udayakumar Srinivasan, Kenneth James Duda, Anirban Sinha
  • Publication number: 20170359305
    Abstract: In general, embodiments of the invention relate to a method and system for enabling a peer state synchronization mechanism for dynamic network address translation (DNAT). More specifically, at least two network elements may be permitted to mount each other's DNAT tables, thereby providing redundancy for the implementation of DNATs in case of the failover of one of the network elements. The failed network element may then re-initialize while the functional network element continues to process packets, including packets that have been redirected to the functional network element post-failure of the failed network element. Upon completing re-initialization, the once failed network element recovers its DNAT table from the functional network element and proceeds to process packets normally.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 14, 2017
    Inventors: Jikai Yin, Sudip Regmi, Suresh Kumar Nalagatla