Patents by Inventor Ankur Singla

Ankur Singla 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: 10565001
    Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: February 18, 2020
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Pedro R. Marques
  • Publication number: 20180173557
    Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines.
    Type: Application
    Filed: February 14, 2018
    Publication date: June 21, 2018
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Pedro R. Marques
  • Patent number: 9929911
    Abstract: In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As described herein, network switches in a network that are capable of participating in a virtual switch may automatically discover one another. The participating network switches may then elect one of the participating switches as a master switch. The master switch may generate forwarding information and store the forwarding information in the participating switches, including the master switch. The forwarding information causes the participating switches to act like a single network switch.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: March 27, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Rajashekar Reddy, Ankur Singla, Harshad Bhaskar Nakil, Pedro R. Marques, Ashish Ranjan
  • Patent number: 9898317
    Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: February 20, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Ankur Singla
  • Patent number: 9710762
    Abstract: In general, techniques are described for dynamically modifying the extent of logging performed by logging information generators in response to events detected in logging information received by the collector. In some examples, a network device includes one or more processors and a collector executed by the processors to receive a log message that includes logging information from a generator. The network device also includes a rules engine to apply one or more rules that each specify a condition and a corresponding action to the logging information to identify a matching rule, wherein the rules engine, upon identifying a matching rule, executes the action of the matching rule to generate and send a logging modification message to increase an extent to which the generator generates logging information.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 18, 2017
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Rajashekar Reddy
  • Patent number: 9619835
    Abstract: Disclosed are various embodiments for adding product customization offerings to a product catalog. One such embodiment comprises receiving a request to create a product customization attribute for a product entry in a product catalog; generating the product customization attribute from at least one option selected on a product customization attribute template specific to a product category associated with the product entry; and directing storage of the product customization attribute associated with the product catalog entry.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 11, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Ajay Kumar Sarda, Ankur Singla, Atul Aggarwal, Vincent M. Rohr, Manish Ramesh Bhatia
  • Patent number: 9485194
    Abstract: Access switches in a switching system may use virtual aggregated links. When a link between an aggregation switch and an access switch fails, the link failure may be reflected in the virtual aggregated link and data traffic to another access switch may be switched away from the failed switch. A forwarding table in the access switch stores a number of entries that each define a correspondence between destination addresses and an output identifier for the switch. At least a first output identifier includes an aggregated link that represents a first set of possible output links. At least a second output identifier includes a virtual aggregated link, associated with a second network switch that represents a second set of possible output links. Destination addresses in the forwarding table for the virtual aggregated link correspond to network devices connected to the second network switch.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 1, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Ankur Singla, Harshad Nakil, Rajashekar Reddy, Hampapur Nagaraj Ajay
  • Patent number: 9374270
    Abstract: Techniques are described to provide multicast service within a virtual network using a virtual network controller and endpoint replication without requiring multicast support in the underlying network. The virtual network controller is configured to create a multicast tree for endpoint devices of a multicast group in the virtual network at a centralized location instead of in a distributed fashion. The virtual network controller communicates the multicast tree to one or more of the endpoint devices of the multicast group to instruct the endpoint devices to replicate and forward multicast packets to other endpoint devices according to the multicast tree. The replication and forwarding of multicast packets is performed by virtual switches executed on the endpoint devices in the virtual network. No replication is performed within the underlying network. The techniques enable multicast service within a virtual network without requiring multicast support in the underlying network.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 21, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Pedro R. Marques, Hampapur Ajay, Ashish Ranjan, Ankur Singla
  • Patent number: 9276405
    Abstract: A system may include a switchover element configurable to source or sink power from or to an electronic device electrically coupled to the switchover element and a controller in communication with the switchover element. The controller may be configured to determine if the electronic device is healthy. When the electronic device is healthy, the controller may configure the switchover element to deliver power from the electronic device to the system andconfigure the switchover element to provide the power to any unhealthy electronic device electrically coupled to the system.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: March 1, 2016
    Assignee: Juniper Networks, Inc.
    Inventors: Hogan Lew, Ankur Singla, Harshad Nakil
  • Patent number: 9172609
    Abstract: In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As described herein, network switches in a network that are capable of participating in a virtual switch may automatically discover one another. The participating network switches may then elect one of the participating switches as a master switch. The master switch may generate forwarding information and store the forwarding information in the participating switches, including the master switch. The forwarding information causes the participating switches to act like a single network switch.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 27, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Rajashekar Reddy, Ankur Singla, Harshad Bhaskar Nakil, Pedro R. Marques, Ashish Ranjan
  • Publication number: 20150244617
    Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines.
    Type: Application
    Filed: June 5, 2013
    Publication date: August 27, 2015
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Rajashekar Reddy, Tirthankar Ghose, ND Ramesh, Pedro Marques, Hampapur Ajay, Ashish Ranjan
  • Patent number: 8959185
    Abstract: In general, techniques are described for facilitating multi-tenancy of a server accessed by virtual networks of a data center. A device included within a data center comprising one or more processors may perform the techniques. The processors may be configured to execute a virtual switch that supports a number of virtual networks executing within the data center. The virtual switch may be configured to receive a request regarding data associated with an identifier that is unique within one of the virtual networks that originated the request. The virtual switch may then translate the identifier included within the request to generate a globally unique identifier that is unique within the plurality of virtual networks, update the request to replace the identifier included within the request with the globally unique identifier, and transmit the updated request to a server of the data center.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Pedro R. Marques, Hampapur Ajay, Ashish Ranjan, Ankur Singla
  • Patent number: 8953441
    Abstract: In one example, a network device includes a virtual network agent, and a network interface to send network packets to the virtual network controller using a default route for a physical network prior to establishing a communication session between a virtual network controller and the virtual network agent, wherein, after establishing the communication session between the virtual network controller device and the virtual network agent, the virtual network agent receives from the virtual network controller a command to install a new route at the network device, wherein the new route specifies encapsulation information to use for encapsulating network packets for sending the network packets to the virtual network controller over an overlay network, and wherein, responsive to detecting a failed link in the physical network, the virtual network agent sends packets to the virtual network controller on an alternate route in the overlay network.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Pedro R. Marques, Hampapur Ajay, Ashish Ranjan, Ankur Singla
  • Patent number: 8848529
    Abstract: A method includes receiving network information for calculating weighted round-robin (WRR) weights, calculating WRR weights associated with queues based on the network information, and determining whether a highest common factor (HCF) exists in relation to the calculated WRR weights. The method further includes reducing the calculated WRR weights in accordance with the HCF, when it is determined that the HCF exists, and performing a WRR scheduling of packets, stored in the queues, based on the reduced WRR weights.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: September 30, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Sreenivas Voruganti, Ankur Singla, Pal Ashish, Balaji Murali, Vedamurthy A Joshi
  • Patent number: 8755377
    Abstract: Techniques for facilitating the operation of one or more virtual networks are described. In some examples, a system may include a first controller node device configured to control operation of a first set of elements in the one or more virtual networks, wherein the first set of elements includes a first server device. The system may also include a second controller node device configured to control operation of a second set of elements in the one or more virtual networks, wherein the second set of elements includes the second server device. The first controller node device and the second controller node device are peers according to a peering protocol by which the first controller node device and the second controller node device exchange information relating to the operation of the first set of elements and the second set of elements.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 17, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Ankur Singla
  • Patent number: 8750288
    Abstract: In general, techniques are described for determining a physical network path taken by packets of a network packet flow. The techniques may be applied to determine, or “trace,” a physical network path in the virtualized network domain. In some examples, a network device includes one or more processors and a switch executed by the processors to forward packets of a packet flow to a physical network path. The network device also includes a flow trace module to generate one or more flow trace packets having incrementally increasing respective time-to-live (TTL) values, wherein the switch module forwards the flow trace packets on an outbound interface of the network device for the physical network path, and wherein the flow trace module receives corresponding time exceeded messages for the flow trace packets, wherein each of the time exceeded message includes a source network address of a network element on the physical network path.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 10, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Rajashekar Reddy
  • Patent number: 8705353
    Abstract: In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As described herein, network switches in a network that are capable of participating in a virtual switch may automatically discover one another. The participating network switches may then elect one of the participating switches as a master switch. The master switch may generate forwarding information and store the forwarding information in the participating switches, including the master switch. The forwarding information causes the participating switches to act like a single network switch.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: April 22, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: Rajashekar Reddy, Ankur Singla, Harshad Nakil, Pedro R. Marques, Ashish Ranjan
  • Publication number: 20130332601
    Abstract: In general, techniques are described for dynamically modifying the extent of logging performed by logging information generators in response to events detected in logging information received by the collector. In some examples, a network device includes one or more processors and a collector executed by the processors to receive a log message that includes logging information from a generator. The network device also includes a rules engine to apply one or more rules that each specify a condition and a corresponding action to the logging information to identify a matching rule, wherein the rules engine, upon identifying a matching rule, executes the action of the matching rule to generate and send a logging modification message to increase an extent to which the generator generates logging information.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Inventors: Harshad Bhaskar Nakil, Ankur Singla, Rajashekar Reddy
  • Publication number: 20130329548
    Abstract: In one example, a network device includes a virtual network agent, and a network interface to send network packets to the virtual network controller using a default route for a physical network prior to establishing a communication session between a virtual network controller and the virtual network agent, wherein, after establishing the communication session between the virtual network controller device and the virtual network agent, the virtual network agent receives from the virtual network controller a command to install a new route at the network device, wherein the new route specifies encapsulation information to use for encapsulating network packets for sending the network packets to the virtual network controller over an overlay network, and wherein, responsive to detecting a failed link in the physical network, the virtual network agent sends packets to the virtual network controller on an alternate route in the overlay network.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Inventors: Harshad Bhaskar Nakil, Pedro R. Marques, Hampapur Ajay, Ashish Ranjan, Ankur Singla
  • Publication number: 20130329605
    Abstract: Techniques are described to provide multicast service within a virtual network using a virtual network controller and endpoint replication without requiring multicast support in the underlying network. The virtual network controller is configured to create a multicast tree for endpoint devices of a multicast group in the virtual network at a centralized location instead of in a distributed fashion. The virtual network controller communicates the multicast tree to one or more of the endpoint devices of the multicast group to instruct the endpoint devices to replicate and forward multicast packets to other endpoint devices according to the multicast tree. The replication and forwarding of multicast packets is performed by virtual switches executed on the endpoint devices in the virtual network. No replication is performed within the underlying network. The techniques enable multicast service within a virtual network without requiring multicast support in the underlying network.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 12, 2013
    Applicant: Juniper Networks, Inc.
    Inventors: Harshad Bhaskar Nakil, Pedro R. Marques, Hampapur Ajay, Ashish Ranjan, Ankur Singla