Patents by Inventor Lester Ginsberg

Lester Ginsberg 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).

  • Maintaining protocol adjacency state with forwarding failure
    Patent number: 7921219
    Abstract: In one embodiment, a method generally includes establishing a routing protocol peer relationship and a Bidirectional Forwarding Detection (BFD) session with a neighbor node, receiving a DOWN BFD event signal from the neighbor node, and maintaining a routing protocol adjacency down state following successful exchange of routing protocol packets with the neighbor node. An apparatus for maintaining protocol adjacency state with a forwarding failure is also disclosed.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: April 5, 2011
    Assignee: Cisco Technology, Inc.
    Inventors: Lester Ginsberg, Abhay Roy, Christian Hopps
  • Maintaining protocol adjacency state with forwarding failure
    Publication number: 20100049868
    Abstract: In one embodiment, a method generally includes establishing a routing protocol peer relationship and a Bidirectional Forwarding Detection (BFD) session with a neighbor node, receiving a DOWN BFD event signal from the neighbor node, and maintaining a routing protocol adjacency down state following successful exchange of routing protocol packets with the neighbor node. An apparatus for maintaining protocol adjacency state with a forwarding failure is also disclosed.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 25, 2010
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Lester Ginsberg, Abhay Roy, Christian Hopps
  • Support of unidirectional link in IS-IS without IP encapsulation and in presence of unidirectional return path
    Publication number: 20070115989
    Abstract: The present invention supports the operation of IS-IS over UDLs without the need for encapsulation of IS-IS PDUs in IP and without the need for a large-scale upgrade of the protocol in the network. The present invention also supports adjacency establishment when the return path from a router at the receive end of a to the router at the transmit end of the unidirectional link is via another unidirectional link.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 24, 2007
    Inventors: Sina Mirtorabi, Abhay Roy, Lester Ginsberg