Patents by Inventor Frederick G. Lewis

Frederick G. Lewis 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).

  • Detecting and preventing the split-brain condition in redundant processing units
    Patent number: 8006129
    Abstract: In an example embodiment the occurrence of the split-brain condition in a High-Availability system, having active and standby processing units, is detected, its cause is diagnosed, and the cause is treated to prevent interruption of service. Diagnosis and treatment procedures are performed at the active processing unit prior to being performed at the standby processing unit.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: August 23, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Donald E. Banks, Samer L. Theodossy, Frederick A. Frazer, Frederick G. Lewis
  • DETECTING AND PREVENTING THE SPLIT-BRAIN CONDITION IN REDUNDANT PROCESSING UNITS
    Publication number: 20100088440
    Abstract: In an example embodiment the occurrence of the split-brain condition in a High-Availability system, having active and standby processing units, is detected, its cause is diagnosed, and the cause is treated to prevent interruption of service. Diagnosis and treatment procedures are performed at the active processing unit prior to being performed at the standby processing unit.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Inventors: DONALD E BANKS, Samer L. Theodossy, Frederick A. Frazer, Frederick G. Lewis