Patents by Inventor Joanne Ottney

Joanne Ottney 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).

  • Secondary storage to reduce counter memory in flow tables
    Patent number: 8189464
    Abstract: In one embodiment, a CAM overflow structure holds flow indices in a CAM and each CAM entry is associated with an overflow count value (OCV) entry holding an OCV. If counter in a primary flow-counter bank (PFCB) overflows when updated, the CAM is searched and, if the index of the counter that overflowed is stored in the associated OCV entry, the OCV is incremented. The counter values in the PFCB are scanned according to specified criteria and transferred to a secondary flow-counter bank (SFCB) held in non-custom system RAM. When a counter value is transferred to the SFCB the corresponding OCV is appended to the counter value.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: May 29, 2012
    Assignee: Cisco Technology Inc.
    Inventors: Dipankar Bhatt Acharya, Joanne Ottney
  • SECONDARY STORAGE TO REDUCE COUNTER MEMORY IN FLOW TABLES
    Publication number: 20110113190
    Abstract: In one embodiment, a CAM overflow structure holds flow indices in a CAM and each CAM entry is associated with an overflow count value (OCV) entry holding an OCV. If counter in an primary flow-counter bank (PFCB) overflows when updated, the CAM is searched and, if the index of the counter that overflowed is stored in the associated OCV entry, the OCV is incremented. The counter values in the PFCB are scanned according to specified criteria and transferred to a secondary flow-counter bank (SFCB) held in non-custom system RAM. When a counter value is transferred to the SFCB the corresponding OCV is appended to the counter value.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Applicant: CISCO TECHNOLGY, INC.
    Inventors: Dipankar Bhatt Acharya, Joanne Ottney