Patents by Inventor Subhachandra Chandra

Subhachandra Chandra 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: 10103850
    Abstract: A method and apparatus of a network element that keeps a port of the network element up in a split port configuration is described. In an exemplary embodiment, the network element receives an indication of a link loss on a receive interface of the port, wherein the port includes the receive interface and a transmit interface. In addition, the receive interface is coupled to a first device over a first link, and the transmit interface is coupled to a second device over a second link. Furthermore, the network element performs an operation of the port such that a link coupled to a transmit interface of the port remains up. The network element additionally suppresses receive faults that are received on the receive interface.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: October 16, 2018
    Assignee: Arista Networks, Inc.
    Inventors: Subhachandra Chandra, Timur Cheremisov, Robert Murray Odear, III, John Peach
  • Patent number: 9847922
    Abstract: A system, method, and associated apparatus for continuous measurement of transit latency in individual data switches and multi-device topologies is disclosed, which enables an accurate measure of real-word latency on production networks by applying a time stamp to production network data on ingress to a network element and determining a traversal time by capturing the time stamp on egress from the network element. In one embodiment, time stamps applied to network data are removed on egress to avoid undesirable packet growth across multiple hops of the network. Timing information on data flow through the data/forwarding plane of each network node of a production network can be gathered without the use of test harnesses, injected network data, or dedicated ports.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: December 19, 2017
    Assignee: Arista Networks, Inc.
    Inventors: John Peach, Subhachandra Chandra
  • Publication number: 20160277272
    Abstract: A system, method, and associated apparatus for continuous measurement of transit latency in individual data switches and multi-device topologies is disclosed, which enables an accurate measure of real-word latency on production networks by applying a time stamp to production network data on ingress to a network element and determining a traversal time by capturing the time stamp on egress from the network element. In one embodiment, time stamps applied to network data are removed on egress to avoid undesirable packet growth across multiple hops of the network. Timing information on data flow through the data/forwarding plane of each network node of a production network can be gathered without the use of test harnesses, injected network data, or dedicated ports.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 22, 2016
    Inventors: John Peach, Subhachandra Chandra
  • Publication number: 20160182194
    Abstract: A method and apparatus of a network element that keeps a port of the network element up in a split port configuration is described. In an exemplary embodiment, the network element receives an indication of a link loss on a receive interface of the port, wherein the port includes the receive interface and a transmit interface. In addition, the receive interface is coupled to a first device over a first link, and the transmit interface is coupled to a second device over a second link. Furthermore, the network element performs an operation of the port such that a link coupled to a transmit interface of the port remains up. The network element additionally suppresses receive faults that are received on the receive interface.
    Type: Application
    Filed: April 27, 2015
    Publication date: June 23, 2016
    Inventors: Subhachandra Chandra, Timur Cheremisov, Robert Murray Odear, III, John Peach