Patents by Inventor Pradeep Sindhu

Pradeep Sindhu 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: 11412076
    Abstract: Network access node virtual fabrics configured dynamically over an underlay network are described. A centralized controller, such as a software-defined networking (SDN) controller, of a packet switched network is configured to establish one or more virtual fabrics as overlay networks on top of the physical underlay network of the packet switched network. For example, the SDN controller may define multiple sets of two of more access nodes connected to the packet switched network, and the access nodes of a given one of the sets may use a new data transmission protocol, referred to generally herein as a fabric control protocol (FCP), to dynamically setup tunnels as a virtual fabric over the packet switched network. The FCP tunnels may include all or a subset of the parallel data paths through the packet switched network between the access nodes for a given virtual fabric.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: August 9, 2022
    Assignee: FUNGIBLE, INC.
    Inventors: Deepak Goel, Narendra Jayawant Gathoo, Philip A. Thomas, Srihari Raju Vegesna, Pradeep Sindhu, Wael Noureddine, Robert William Bowdidge, Ayaskant Pani, Gopesh Goyal
  • Publication number: 20220224564
    Abstract: A new processing architecture is described in which a data processing unit (DPU) is utilized within a device. Unlike conventional compute models that are centered around a central processing unit (CPU), example implementations described herein leverage a DPU that is specially designed and optimized for a data-centric computing model in which the data processing tasks are centered around, and the primary responsibility of, the DPU. For example, various data processing tasks, such as networking, security, and storage, as well as related work acceleration, distribution and scheduling, and other such tasks are the domain of the DPU. The DPU may be viewed as a highly programmable, high-performance input/output (I/O) and data-processing hub designed to aggregate and process network and storage I/O to and from multiple other components and/or devices. This frees resources of the CPU, if present, for computing-intensive tasks.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Inventors: Pradeep Sindhu, Jean-Marc Frailong, Bertrand Serlet, Wael Noureddine, Felix A. Marti, Deepak Goel, Rajan Goyal
  • Patent number: 11360895
    Abstract: Methods and apparatus for memory management are described. In one example, this disclosure describes a method that includes executing, by a first processing unit, first work unit operations specified by a first work unit message, wherein execution of the first work unit operations includes accessing data from shared memory included within the computing system, modifying the data, and storing the modified data in a first cache associated with the first processing unit; identifying, by the computing system, a second work unit message that specifies second work unit operations that access the shared memory; updating, by the computing system, the shared memory by storing the modified data in the shared memory; receiving, by the computing system, an indication that updating the shared memory with the modified data is complete; and enabling the second processing unit to execute the second work unit operations.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: June 14, 2022
    Assignee: Fungible, Inc.
    Inventors: Wael Noureddine, Jean-Marc Frailong, Pradeep Sindhu, Bertrand Serlet
  • Publication number: 20220174133
    Abstract: This disclosure describes techniques for performing communications between devices using various aspects of Ethernet standards. As further described herein, a protocol is disclosed that may be used for communications between devices, where the communications take place over a physical connection complying with Ethernet standards. Such a protocol may enable reliable and in-order delivery of frames between devices, while following Ethernet physical layer rules, Ethernet symbol encoding, Ethernet lane alignment, and/or Ethernet frame formats.
    Type: Application
    Filed: February 15, 2022
    Publication date: June 2, 2022
    Inventors: Pradeep Sindhu, Deepak Goel, Srihari Raju Vegesna, Aibing Zhou, Shashi Kumar, Rohit Sunkam Ramanujam
  • Publication number: 20220150185
    Abstract: In one embodiment, edge devices can be configured to be coupled to a multi-stage switch fabric and peripheral processing devices. The edge devices and the multi-stage switch fabric can collectively define a single logical entity. A first edge device from the edge devices can be configured to be coupled to a first peripheral processing device from the peripheral processing devices. The second edge device from the edge devices can be configured to be coupled to a second peripheral processing device from the peripheral processing devices. The first edge device can be configured such that virtual resources including a first virtual resource can be defined at the first peripheral processing device. A network management module coupled to the edge devices and configured to provision the virtual resources such that the first virtual resource can be migrated from the first peripheral processing device to the second peripheral processing device.
    Type: Application
    Filed: January 27, 2022
    Publication date: May 12, 2022
    Applicant: Juniper Networks, Inc.
    Inventors: Pradeep SINDHU, Gunes AYBAY, Jean-Marc FRAILONG, Anjan VENKATRAMANI, Quaizar VOHRA
  • Patent number: 11303472
    Abstract: A new processing architecture is described in which a data processing unit (DPU) is utilized within a device. Unlike conventional compute models that are centered around a central processing unit (CPU), example implementations described herein leverage a DPU that is specially designed and optimized for a data-centric computing model in which the data processing tasks are centered around, and the primary responsibility of, the DPU. For example, various data processing tasks, such as networking, security, and storage, as well as related work acceleration, distribution and scheduling, and other such tasks are the domain of the DPU. The DPU may be viewed as a highly programmable, high-performance input/output (I/O) and data-processing hub designed to aggregate and process network and storage I/O to and from multiple other components and/or devices. This frees resources of the CPU, if present, for computing-intensive tasks.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 12, 2022
    Assignee: Fungible, Inc.
    Inventors: Pradeep Sindhu, Jean-Marc Frailong, Bertrand Serlet, Wael Noureddine, Felix A. Marti, Deepak Goel, Rajan Goyal
  • Publication number: 20220103661
    Abstract: A fabric control protocol is described for use within a data center in which a switch fabric provides full mesh interconnectivity such that any of the servers may communicate packet data for a given packet flow to any other of the servers using any of a number of parallel data paths within the data center switch fabric. The fabric control protocol enables spraying of individual packets for a given packet flow across some or all of the multiple parallel data paths in the data center switch fabric and, optionally, reordering of the packets for delivery to the destination. The fabric control protocol may provide end-to-end bandwidth scaling and flow fairness within a single tunnel based on endpoint-controlled requests and grants for flows. In some examples, the fabric control protocol packet structure is carried over an underlying protocol, such as the User Datagram Protocol (UDP).
    Type: Application
    Filed: November 12, 2021
    Publication date: March 31, 2022
    Inventors: Deepak Goel, Narendra Jayawant Gathoo, Philip A. Thomas, Srihari Raju Vegesna, Pradeep Sindhu, Wael Noureddine, Robert William Bowdidge, Ayaskant Pani, Gopesh Goyal
  • Patent number: 11271871
    Abstract: In one embodiment, edge devices can be configured to be coupled to a multi-stage switch fabric and peripheral processing devices. The edge devices and the multi-stage switch fabric can collectively define a single logical entity. A first edge device from the edge devices can be configured to be coupled to a first peripheral processing device from the peripheral processing devices. The second edge device from the edge devices can be configured to be coupled to a second peripheral processing device from the peripheral processing devices. The first edge device can be configured such that virtual resources including a first virtual resource can be defined at the first peripheral processing device. A network management module coupled to the edge devices and configured to provision the virtual resources such that the first virtual resource can be migrated from the first peripheral processing device to the second peripheral processing device.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 8, 2022
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep Sindhu, Gunes Aybay, Jean-Marc Frailong, Anjan Venkatramani, Quaizar Vohra
  • Patent number: 11272041
    Abstract: This disclosure describes techniques for performing communications between devices using various aspects of Ethernet standards. As further described herein, a protocol is disclosed that may be used for communications between devices, where the communications take place over a physical connection complying with Ethernet standards. Such a protocol may enable reliable and in-order delivery of frames between devices, while following Ethernet physical layer rules, Ethernet symbol encoding, Ethernet lane alignment, and/or Ethernet frame formats.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: March 8, 2022
    Assignee: Fungible, Inc.
    Inventors: Pradeep Sindhu, Deepak Goel, Srihari Raju Vegesna, Aibing Zhou, Shashi Kumar, Rohit Sunkam Ramanujam
  • Patent number: 11178262
    Abstract: A fabric control protocol is described for use within a data center in which a switch fabric provides full mesh interconnectivity such that any of the servers may communicate packet data for a given packet flow to any other of the servers using any of a number of parallel data paths within the data center switch fabric. The fabric control protocol enables spraying of individual packets for a given packet flow across some or all of the multiple parallel data paths in the data center switch fabric and, optionally, reordering of the packets for delivery to the destination. The fabric control protocol may provide end-to-end bandwidth scaling and flow fairness within a single tunnel based on endpoint-controlled requests and grants for flows. In some examples, the fabric control protocol packet structure is carried over an underlying protocol, such as the User Datagram Protocol (UDP).
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 16, 2021
    Assignee: Fungible, Inc.
    Inventors: Deepak Goel, Narendra Jayawant Gathoo, Phillip A. Thomas, Srihari Raju Vegesna, Pradeep Sindhu, Wael Noureddine, Robert William Bowdidge, Ayaskant Pani, Gopesh Goyal
  • Publication number: 20210334184
    Abstract: This disclosure describes techniques that include implementing network-efficient data durability or data reliability coding on a network. In one example, this disclosure describes a method that includes generating a plurality of data fragments from a set of data to enable reconstruction of the set of data from a subset of the plurality of data fragments; storing, across a plurality of nodes in a network, the plurality of data fragments, wherein storing the plurality of data fragments includes storing the first fragment at a first node and the second fragment at a second node; and generating, by the first node, a plurality of secondary fragments derived from the first fragment to enable reconstruction of the first fragment from a subset of the plurality of secondary fragments; and storing the plurality of secondary fragments from the first fragment across a plurality of storage devices included within the first node.
    Type: Application
    Filed: April 26, 2021
    Publication date: October 28, 2021
    Inventors: Jaishankar Menon, Pradeep Sindhu, Pratapa Reddy Vaka
  • Publication number: 20210320820
    Abstract: A fabric control protocol (FCP) and packet forwarding mechanisms are described that maximize utilization of bandwidth within massive, large-scale data centers having multi-stage data center switch fabric topologies, such as topologies that include a third switching layer formed by super spine switches. Automatic generation of data plane forwarding information referred to as FCP path information enumerates, for each data processing unit (DPU), the available FCP paths. The FCP path information may be based on unique combinations of peak points of the switch fabric for a given DPU with FCP colors assigned to network links that are used to multi-home the DPU to the switch fabric.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Inventors: Yixing Ruan, Deepak Goel, Narendra Jayawant Gathoo, Philip A. Thomas, Srihari Raju Vegesna, Pradeep Sindhu, Wael Noureddine, Robert William Bowdidge, Ayaskant Pani, Gopesh Goyal
  • Publication number: 20210297350
    Abstract: A fabric control protocol (FCP) is a data transmission protocol that enables spraying of individual packets for a given packet flow across a data center from an ingress interface of the source data processing unit (DPU) across a plurality of parallel data paths of a logical tunnel in the network fabric to the egress interface of the destination DPU. The FCP has congestion control mechanisms used to determine a degree of congestion at the egress interface of the destination DPU and to modify a send window size at the source DPU based on the degree of congestion. Reliable FCP (rFCP) extensions provide reliability enhancements and improved failure resilience within the data center. The rFCP extensions provide an unsolicited mode for low latency operation with enhanced reliability mechanisms. The rFCP extensions provide failure resilience mechanisms to identify and avoid failed paths among multiple parallel data paths within the logical tunnel.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Inventors: Srihari Raju Vegesna, Narendra Jayawant Gathoo, Pradeep Sindhu, Jean-Marc Frailong, Gopesh Goyal, Suresh Vemula, John David Huber
  • Publication number: 20210297351
    Abstract: A fabric control protocol (FCP) is a data transmission protocol that enables spraying of individual packets for a given packet flow across a data center from an ingress interface of the source data processing unit (DPU) across a plurality of parallel data paths of a logical tunnel in the network fabric to the egress interface of the destination DPU. The FCP has congestion control mechanisms used to determine a degree of congestion at the egress interface of the destination DPU and to modify a send window size at the source DPU based on the degree of congestion. Reliable FCP (rFCP) extensions provide reliability enhancements and improved failure resilience within the data center. The rFCP extensions provide an unsolicited mode for low latency operation with enhanced reliability mechanisms. The rFCP extensions provide failure resilience mechanisms to identify and avoid failed paths among multiple parallel data paths within the logical tunnel.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 23, 2021
    Inventors: Srihari Raju Vegesna, Narendra Jayawant Gathoo, Pradeep Sindhu, Jean-Marc Frailong, Gopesh Goyal, Suresh Vemula, John David Huber
  • Publication number: 20210297343
    Abstract: A fabric control protocol (FCP) is a data transmission protocol that enables spraying of individual packets for a given packet flow across a data center from an ingress interface of the source data processing unit (DPU) across a plurality of parallel data paths of a logical tunnel in the network fabric to the egress interface of the destination DPU. The FCP has congestion control mechanisms used to determine a degree of congestion at the egress interface of the destination DPU and to modify a send window size at the source DPU based on the degree of congestion. Reliable FCP (rFCP) extensions provide reliability enhancements and improved failure resilience within the data center. The rFCP extensions provide an unsolicited mode for low latency operation with enhanced reliability mechanisms. The rFCP extensions provide failure resilience mechanisms to identify and avoid failed paths among multiple parallel data paths within the logical tunnel.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 23, 2021
    Inventors: Srihari Raju Vegesna, Narendra Jayawant Gathoo, Pradeep Sindhu, Jean-Marc Frailong, Gopesh Goyal, Suresh Vemula, John David Huber, Chetan Ambalal Shah
  • Publication number: 20210288830
    Abstract: This disclosure describes techniques for providing early acknowledgments to a source device performing a data write operation within a data center or across a geographically-distributed data center. In one example, this disclosure describes a method that includes receiving, by a gateway device and from a source device within a local data center, data to be stored at a remote destination device that is located within a remote data center; storing, by the gateway device, the data to high-speed memory included within the gateway device; transmitting, by the gateway device, the data over a connection to the remote data center; after transmitting the data and before the data is stored at the remote destination device, outputting, by the gateway device to the source device, a local acknowledgment, wherein the local acknowledgment indicates to the source device that the data can be assumed to have been stored at the remote destination device.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Pradeep Sindhu, Jaspal Kohli, Philip A. Thomas
  • Publication number: 20210235173
    Abstract: A network system for a data center is described in which a switch fabric may provide full mesh interconnectivity such that any servers may communicate packet data to any other of the servers using any of a number of parallel data paths. Moreover, according to the techniques described herein, edge-positioned access nodes, optical permutation devices and core switches of the switch fabric may be configured and arranged in a way such that the parallel data paths provide single L2/L3 hop, full mesh interconnections between any pairwise combination of the access nodes, even in massive data centers having tens of thousands of servers. The plurality of optical permutation devices permute communications across the optical ports based on wavelength so as to provide, in some cases, full-mesh optical connectivity between edge-facing ports and core-facing ports.
    Type: Application
    Filed: April 15, 2021
    Publication date: July 29, 2021
    Inventors: Pradeep Sindhu, Satish D Deo, Deepak Goel, Sunil Mekad
  • Publication number: 20210218665
    Abstract: Techniques for detecting path failures and reducing packet loss as a result of such failures are described for use within a data center or other environment. For example, a source and/or destination access node may create and/or maintain information about health and/or connectivity for a plurality of ports or paths between the source and destination device and core switches. The source access node may spray packets over a number of paths between the source access node and the destination access node. The source access node may use the information about connectivity for the paths between the source or destination access nodes and the core switches to limit the paths over which packets are sprayed. The source access node may spray packets over paths between the source access node and the destination access node that are identified as healthy, while avoiding paths that have been identified as failed.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Inventors: Deepak Goel, Pradeep Sindhu, Ayaskant Pani, Srihari Raju Vegesna, Narendra Jayawant Gathoo, John David Huber, Rohit Sunkam Ramanujam, Saurin Patel
  • Publication number: 20210176347
    Abstract: Network access node virtual fabrics configured dynamically over an underlay network are described. A centralized controller, such as a software-defined networking (SDN) controller, of a packet switched network is configured to establish one or more virtual fabrics as overlay networks on top of the physical underlay network of the packet switched network. For example, the SDN controller may define multiple sets of two of more access nodes connected to the packet switched network, and the access nodes of a given one of the sets may use a new data transmission protocol, referred to generally herein as a fabric control protocol (FCP), to dynamically setup tunnels as a virtual fabric over the packet switched network. The FCP tunnels may include all or a subset of the parallel data paths through the packet switched network between the access nodes for a given virtual fabric.
    Type: Application
    Filed: January 21, 2021
    Publication date: June 10, 2021
    Inventors: Deepak Goel, Narendra Jayawant Gathoo, Philip A. Thomas, Srihari Raju Vegesna, Pradeep Sindhu, Wael Noureddine, Robert William Bowdidge, Ayaskant Pani, Gopesh Goyal
  • Patent number: 11025445
    Abstract: This disclosure describes techniques for providing early acknowledgments to a source device performing a data write operation within a data center or across a geographically-distributed data center. In one example, this disclosure describes a method that includes receiving, by a gateway device and from a source device within a local data center, data to be stored at a remote destination device that is located within a remote data center; storing, by the gateway device, the data to high-speed memory included within the gateway device; transmitting, by the gateway device, the data over a connection to the remote data center; after transmitting the data and before the data is stored at the remote destination device, outputting, by the gateway device to the source device, a local acknowledgment, wherein the local acknowledgment indicates to the source device that the data can be assumed to have been stored at the remote destination device.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: June 1, 2021
    Assignee: Fungible, Inc.
    Inventors: Pradeep Sindhu, Jaspal Kohli, Philip A. Thomas