Patents by Inventor Vijay K. Chander

Vijay K. Chander 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: 11252088
    Abstract: A method for managing network congestion is provided. The method comprises: receiving, at a receiver, a packet comprising a timestamp provided by a first clock of a sender; deriving, by the receiver, a latency value based at least in part on the timestamp provided by the first clock and a receipt time provided by a second clock of the receiver; determining a latency change by comparing the latency value with a previous latency value; and determining a state of network congestion based at least in part on the latency change.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: February 15, 2022
    Assignee: PENSANDO SYSTEMS INC.
    Inventors: Raja Rao Tadimeti, Vijay K. Chander, Diego Crupnicoff, Vishal Jain, Madhava Rao Cheethirala
  • Publication number: 20200336426
    Abstract: A method for managing network congestion is provided. The method comprises: receiving, at a receiver, a packet comprising a timestamp provided by a first clock of a sender; deriving, by the receiver, a latency value based at least in part on the timestamp provided by the first clock and a receipt time provided by a second clock of the receiver; determining a latency change by comparing the latency value with a previous latency value; and determining a state of network congestion based at least in part on the latency change.
    Type: Application
    Filed: August 30, 2018
    Publication date: October 22, 2020
    Inventors: Raja Rao TADIMETI, Vijay K. CHANDER, Diego CRUPNICOFF, Vishal JAIN, Madhava Rao CHEETHIRALA
  • Patent number: 10469402
    Abstract: The techniques presented herein use dynamic endpoint group (EPG) binding changes to facilitate cross-tenant resource sharing. A first node of a multi-tenant software defined network determines that an application on a first endpoint has initiated operation and needs temporary access to resources located at a second endpoint. The first and second endpoints are associated with first and second tenants, respectively, that are logically segregated from one another by the software defined network. The first node dynamically changes an initial EPG binding associated with the first endpoint to a second EPG binding that enables the first endpoint to temporarily directly access the resources at the second endpoint. The first node subsequently determines that the application on the first endpoint no longer needs access to the resources located at a second endpoint and, as such, changes the second EPG binding associated with the first endpoint back to the initial EPG binding.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: November 5, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Saurabh Jain, Vijay K. Chander, Vijayan Ramakrishnan, Ronak K. Desai, Praveen Jain, Munish Mehta, Yibin Yang
  • Publication number: 20180139150
    Abstract: The techniques presented herein use dynamic endpoint group (EPG) binding changes to facilitate cross-tenant resource sharing. A first node of a multi-tenant software defined network determines that an application on a first endpoint has initiated operation and needs temporary access to resources located at a second endpoint. The first and second endpoints are associated with first and second tenants, respectively, that are logically segregated from one another by the software defined network. The first node dynamically changes an initial EPG binding associated with the first endpoint to a second EPG binding that enables the first endpoint to temporarily directly access the resources at the second endpoint. The first node subsequently determines that the application on the first endpoint no longer needs access to the resources located at a second endpoint and, as such, changes the second EPG binding associated with the first endpoint back to the initial EPG binding.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 17, 2018
    Inventors: Saurabh Jain, Vijay K. Chander, Vijayan Ramakrishnan, Ronak K. Desai, Praveen Jain, Munish Mehta, Yibin Yang
  • Patent number: 7230914
    Abstract: A system and method is directed to synchronizing a standby route distributor in a distributed routing platform. A route distributor is configured to operate as an active route distributor. Another route distributor is configured to operate as a standby route distributor. The standby and active route distributor may reside in the same or a different distributed routing platform. A slave route distributor communicates a route to the active route distributor. The active route distributor may update its routing tables with the route. The active route distributor forwards the route to the standby route distributor to enable their routing tables to be substantially synchronized. The standby route distributor distributes the route to the slave route distributors, where the route enables an update to another routing table. In the event of a switchover, the standby route distributor resynchronizes its routing tables and may distribute route information to each slave route distributor.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 12, 2007
    Assignee: Nokia Inc.
    Inventors: Ramkumar Sankar, Sreeram P. Iyer, Sachchidanand D. Vaidya, Vijay K. Chander, Atul B. Mahamuni, Henry Hong-Yi Tzeng
  • Patent number: 6850492
    Abstract: A system and method is directed to updating a route table in a distributed routing platform, thereby enabling multiple routing protocols to be executed on different routing modules. A slave route distributor on one routing module is configured to receive a route from a local route table and flow manager. The slave route distributor communicates the route to a master route distributor on another routing module by way of an inter process communications protocol. The master route distributor provides the route to its local route table and flow manager, where a determination is made whether the route is a best route. If the route is a best route, the master route distributor updates its external routing table. The master route distributor also distributes the route to another slave route distributor on yet another routing module, where the route enables an update to a remote routing protocol, and routing table.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: February 1, 2005
    Assignee: Nokia Corporation
    Inventors: Vijay K. Chander, Atul B. Mahamuni, Ramkumar Sankar, Sreeram Iyer, Henry Hong-Yi Tzeng
  • Publication number: 20040100904
    Abstract: A system and method is directed to updating a route table in a distributed routing platform, thereby enabling multiple routing protocols to be executed on different routing modules. A slave route distributor on one routing module is configured to receive a route from a local route table and flow manager. The slave route distributor communicates the route to a master route distributor on another routing module by way of an inter process communications protocol. The master route distributor provides the route to its local route table and flow manager, where a determination is made whether the route is a best route. If the route is a best route, the master route distributor updates its external routing table. The master route distributor also distributes the route to another slave route distributor on yet another routing module, where the route enables an update to a remote routing protocol, and routing table.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Applicant: Nokia Corporation
    Inventors: Vijay K. Chander, Atul B. Mahamuni, Ramkumar Sankar, Sreeram Iyer, Henry Hong-Yi Tzeng