Patents by Inventor Will Lockhart

Will Lockhart 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).

  • Method and apparatus for rapid switchover from primary to standby multicast trees
    Patent number: 8451717
    Abstract: A capability is provided for switching between primary and standby multicast trees on a network egress node of a multicast network. The network egress node includes a first MPLS LABEL Record including a first tree identifier of the first multicast tree, a second MPLS LABEL Record including a second tree identifier of the second multicast tree, and a MULTICAST Record including a plurality of primary tree identifiers and a plurality of standby tree identifiers. The MPLS LABEL Records include parameters, respectively, where the values of the parameters are indicative of respective packet processing rules to be applied for determining whether to accept or discard packets. When the parameter of an MPLS LABEL Record is set to a first value, a determination as to whether to accept or discard a packet received via the associated multicast tree is performed by comparing the tree identifier of the MPLS LABEL Record only to primary tree identifiers of the MULTICAST Record.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: May 28, 2013
    Assignee: Alcatel Lucent
    Inventors: Srikrishnan Venkataraman, Sivaramakrishna Kuditipudi, Prashanth Ishwar, Pradeep G. Jain, Jeremy Fine, Will Lockhart
  • METHOD AND APPARATUS FOR RAPID SWITCHOVER FROM PRIMARY TO STANDBY MULTICAST TREES
    Publication number: 20120026866
    Abstract: A capability is provided for switching between primary and standby multicast trees on a network egress node of a multicast network. The network egress node includes a first MPLS LABEL Record including a first tree identifier of the first multicast tree, a second MPLS LABEL Record including a second tree identifier of the second multicast tree, and a MULTICAST Record including a plurality of primary tree identifiers and a plurality of standby tree identifiers. The MPLS LABEL Records include parameters, respectively, where the values of the parameters are indicative of respective packet processing rules to be applied for determining whether to accept or discard packets. When the parameter of an MPLS LABEL Record is set to a first value, a determination as to whether to accept or discard a packet received via the associated multicast tree is performed by comparing the tree identifier of the MPLS LABEL Record only to primary tree identifiers of the MULTICAST Record.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Inventors: Srikrishnan Venkataraman, Sivaramakrishna Kuditipudi, Prashanth Ishwar, Pradeep G. Jain, Jeremy Fine, Will Lockhart