Patents by Inventor Igor Shifrin

Igor Shifrin 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).

  • Technology for flushing and relearning MAC addresses in telecommunication networks
    Patent number: 8611255
    Abstract: A technique for performing a flushing process at a port of a network switch, where the flushing process comprises a flooding operation and an operation of relearning MAC addresses. In the method, these two operations are made independent, and the operation of relearning MAC addresses is started before termination of the flooding operation. An operation of forwarding packets to the relearned MAC addresses can be started before termination of the flooding operation.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: December 17, 2013
    Assignee: ECI Telecom Ltd.
    Inventors: Alexander Kugel, Igor Shifrin
  • METHOD FOR MAC ADDRESSES WITHDRAWAL IN TELECOMMUNICATION NETWORKS
    Publication number: 20120257539
    Abstract: A rationalized MAC withdrawal method for a multi-domain communication network, where at least one access node interconnects a remote node with two or more access networks. The method allows flushing, both in the access nodes and in the remote node, only MAC addresses being related to a specific access networks where a topological change has taken place, without affecting other access networks connected to the same access node.
    Type: Application
    Filed: March 28, 2012
    Publication date: October 11, 2012
    Inventors: Alexander KUGEL, Igor Shifrin
  • Technique for combating loops in communication network
    Patent number: 8184545
    Abstract: Technology for combating loops in multi-domain networks, by assigning to network domains categories, at least such as “high/trusted” and “low/less trusted”, and by making a decision about relearning Forwarding Information Base FIB of any edge node interconnecting different network domains, utilizing the assigned categories.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: May 22, 2012
    Assignee: ECI Telecom Ltd.
    Inventors: Andrew Sergeev, Igor Balter, Igor Shifrin, Alexander Kugel
  • TECHNOLOGY FOR FLUSHING AND RELEARNING MAC ADDRESSES IN TELECOMMUNICATION NETWORKS
    Publication number: 20110280242
    Abstract: A technique for performing a flushing process at a port of a network switch, where the flushing process comprises a flooding operation and an operation of relearning MAC addresses. In the method, these two operations are made independent, and the operation of relearning MAC addresses is started before termination of the flooding operation. An operation of forwarding packets to the relearned MAC addresses can be started before termination of the flooding operation.
    Type: Application
    Filed: April 25, 2011
    Publication date: November 17, 2011
    Applicant: ECI TELECOM LTD.
    Inventors: Alexander KUGEL, Igor Shifrin
  • TECHNIQUE FOR COMBATING LOOPS IN COMMUNICATION NETWORK
    Publication number: 20100080239
    Abstract: Technology for combating loops in multi-domain networks, by assigning to network domains categories, at least such as “high/trusted” and “low/less trusted”, and by making a decision about relearning Forwarding Information Base FIB of any edge node interconnecting different network domains, utilizing the assigned categories.
    Type: Application
    Filed: September 15, 2009
    Publication date: April 1, 2010
    Applicant: ECI Telecom Ltd.
    Inventors: Andrew SERGEEV, Igor Balter, Igor Shifrin, Alexander Kugel