Patents by Inventor Zvika Menahemi

Zvika Menahemi 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: 7626930
    Abstract: A method for communication between first and second nodes via a communication network includes assigning multiple communication ports in two or more network nodes between the first and second nodes to serve as member ports of a multi-homing group (MHG). Each of the member ports is associated with a different, respective communication path between the first and second nodes via the communication network. A frame transmitted from the first node to the second node is accepted at the two or more network nodes. The frame has a header including header fields. A single port is selected from among the member ports by applying a hashing function to one or more of the header fields at each of the two or more network nodes. The frame is forwarded via the selected port over the respective communication path that is associated with the selected port.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: December 1, 2009
    Assignee: Corrigent Systems Ltd.
    Inventors: Gideon Agmon, David Zelig, Zvika Menahemi
  • Patent number: 7551599
    Abstract: Routing tables of OSI layer-3 network elements are modified in order to enable entry to a RPR subnet at different entry points. This enables virtual tunnels or routing paths to utilize all existing entry links to the RPR subnet and to minimize cost factors, such as the number of RPR spans required to traverse the RPR subnet from the entry point to a destination RPR node. The routing tables of RPR subnet elements are modified, such that traffic leaving different elements but destined for the same network location outside the RPR subnet may have individualized RPR exit nodes. The respective RPR exit points for the network elements are chosen to minimize cost factors, such as the number of RPR spans required to reach the exit node from each RPR node.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: June 23, 2009
    Assignee: Corrigent Systems Ltd.
    Inventors: Alex Levit, Gideon Agmon, Ronen Solomon, Zvika Menahemi
  • Patent number: 7478382
    Abstract: According to a disclosed embodiment of the invention, software download and installation in a ring network are synchronized in a two-stage operation in order to minimize service disruption time. In a first phase, the MPM's and UIM's in all the nodes are upgraded in parallel. Each node has two main processing modules, allowing one to be upgraded while the other continues to operate the node. In a second phase, the RIM's at the edges of a single ring segment are upgraded, one ring segment after the other, during which time each terminal node continues to operate with respect to the span connecting to its opposite side. While a span is non-operative, traffic is wrapped or diverted as necessary to maintain service of the ring. While one RIM of a node is being upgraded, the other RIM remains operational.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: January 13, 2009
    Assignee: Corrigent Systems Ltd.
    Inventors: Zvika Menahemi, Alex Levit, Muly Ilan
  • Publication number: 20080112323
    Abstract: A method for communication between first and second nodes via a communication network includes assigning multiple communication ports in two or more network nodes between the first and second nodes to serve as member ports of a multi-homing group (MHG). Each of the member ports is associated with a different, respective communication path between the first and second nodes via the communication network. A frame transmitted from the first node to the second node is accepted at the two or more network nodes. The frame has a header including header fields. A single port is selected from among the member ports by applying a hashing function to one or more of the header fields at each of the two or more network nodes. The frame is forwarded via the selected port over the respective communication path that is associated with the selected port.
    Type: Application
    Filed: July 16, 2007
    Publication date: May 15, 2008
    Applicant: CORRIGENT SYSTEMS LTD.
    Inventors: Gideon Agmon, David Zelig, Zvika Menahemi
  • Publication number: 20060070058
    Abstract: According to a disclosed embodiment of the invention, software download and installation in a ring network are synchronized in a two-stage operation in order to minimize service disruption time. In a first phase, the MPM's and UIM's in all the nodes are upgraded in parallel. Each node has two main processing modules, allowing one to be upgraded while the other continues to operate the node. In a second phase, the RIM's at the edges of a single ring segment are upgraded, one ring segment after the other, during which time each terminal node continues to operate with respect to the span connecting to its opposite side. While a span is non-operative, traffic is wrapped or diverted as necessary to maintain service of the ring. While one RIM of a node is being upgraded, the other RIM remains operational.
    Type: Application
    Filed: September 27, 2004
    Publication date: March 30, 2006
    Applicant: Corrigent Systems Ltd.
    Inventors: Zvika Menahemi, Alex Levit, Muly Ilan
  • Publication number: 20050213558
    Abstract: Routing tables of OSI layer-3 network elements are modified in order to enable entry to a RPR subnet at different entry points. This enables virtual tunnels or routing paths to utilize all existing entry links to the RPR subnet and to minimize cost factors, such as the number of RPR spans required to traverse the RPR subnet from the entry point to a destination RPR node. The routing tables of RPR subnet elements are modified, such that traffic leaving different elements but destined for the same network location outside the RPR subnet may have individualized RPR exit nodes. The respective RPR exit points for the network elements are chosen to minimize cost factors, such as the number of RPR spans required to reach the exit node from each RPR node.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 29, 2005
    Applicant: Corrigent Systems Ltd.
    Inventors: Alex Levit, Gideon Agmon, Ronen Solomon, Zvika Menahemi