Patents by Inventor Parag Kumar Jain

Parag Kumar Jain 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).

  • Coordinated updating of forwarding information bases in a multistage packet switching device
    Patent number: 8467403
    Abstract: Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with the coordinated updating of forwarding information bases (FIBs) in a multistage packet switching device, which performs at least lookup operations on multiple different FIBs in determining how to forward a packet. One embodiment uses lookup operations on two different FIBs, with these being an ingress FIB on an ingress line card and an egress FIB on an egress line card. In response to a change in the forwarding information for a stream of packets, the egress FIBs are first updated to include both the old and new forwarding information. After all egress FIBs have been updated, the ingress FIBs are updated to use the new forwarding information. This update procedure is designed to eliminate loss or duplication of packets induced during the updating of these FIBs to use the new forwarding information.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Yuri Tsier, Parag Kumar Jain, Clarence Filsfils, Sami Boutros, John H. W. Bettink
  • Coordinated Updating of Forwarding Information Bases in a Multistage Packet Switching Device
    Publication number: 20110268130
    Abstract: Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with the coordinated updating of forwarding information bases (FIBs) in a multistage packet switching device, which performs at least lookup operations on multiple different FIBs in determining how to forward a packet. One embodiment uses lookup operations on two different FIBs, with these being an ingress FIB on an ingress line card and an egress FIB on an egress line card. In response to a change in the forwarding information for a stream of packets, the egress FIBs are first updated to include both the old and new forwarding information. After all egress FIBs have been updated, the ingress FIBs are updated to use the new forwarding information. This update procedure is designed to eliminate loss or duplication of packets induced during the updating of these FIBs to use the new forwarding information.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicant: Cisco Technology, Inc., a corporation of California
    Inventors: Yuri Tsier, Parag Kumar Jain, Clarence Filsfils, Sami Boutros, John H. W. Bettink