Patents by Inventor Zhongping Pan

Zhongping Pan 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).

  • Label switching or equivalent network multipath traffic control
    Patent number: 9219672
    Abstract: A method, a device, and a storage medium provide for receiving packets; determining a traffic flow rate value pertaining to the packets; comparing the traffic flow rate value to a flow rate threshold value; selecting one or more candidate paths that are not bandwidth-aware; calculating a current available bandwidth for each of the one or more candidate paths; selecting one or more of the one or more candidate paths based on the traffic flow rate value and the current available bandwidth; and transmitting the packets to a destination via the one or more of the one or more candidate paths.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 22, 2015
    Assignee: VERIZON PATENT AND LICENSING INC.
    Inventors: Fengman Xu, Khalid Elshatali, Zhongping Pan
  • Network stabilizer
    Patent number: 8717893
    Abstract: A network device determines that an outgoing network-to-network interface has dropped one or more network control packets and incrementally adjusts, based on the determining, a drop threshold parameter for the network control packets to give preference to the network control packets over non-network control packets. After the adjusting, the network device monitors traffic over the interface, and preempts, based on the monitoring, a low-priority label switched path (LSP) using the interface when the interface reaches a congested threshold or when the interface has dropped one or more other network control packets. The network device restores the low-priority LSP to the interface when the interface has reached an uncongested threshold.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: May 6, 2014
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Koutoung Chou, Joecylyn Malit, Shengping Shiau, Zhongping Pan
  • Dampening interface flapping
    Patent number: 8543728
    Abstract: A device may include a control module and a line card. The control module may be configured to run a routing protocol to obtain routing information from network devices. The line card may include a processor. The processor may be configured to establish a bidirectional forwarding detection (BFD) session with a remote device, determine whether an interface associated with the BFD session is flapping, terminate the BFD session when the interface is flapping, disable the interface when the interface is flapping, re-enable the interface after a dampening recovery period elapses, reestablish the BFD session, and send a BFD packet to the remote device.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: September 24, 2013
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Zhongping Pan, Shengping Shiau
  • LABEL SWITCHING OR EQUIVALENT NETWORK MULTIPATH TRAFFIC CONTROL
    Publication number: 20130155865
    Abstract: A method, a device, and a storage medium provide for receiving packets; determining a traffic flow rate value pertaining to the packets; comparing the traffic flow rate value to a flow rate threshold value; selecting one or more candidate paths that are not bandwidth-aware; calculating a current available bandwidth for each of the one or more candidate paths; selecting one or more of the one or more candidate paths based on the traffic flow rate value and the current available bandwidth; and transmitting the packets to a destination via the one or more of the one or more candidate paths.
    Type: Application
    Filed: December 14, 2011
    Publication date: June 20, 2013
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Fengman Xu, Khalid Elshatali, Zhongping Pan
  • NETWORK STABILIZER
    Publication number: 20120134260
    Abstract: A network device determines that an outgoing network-to-network interface has dropped one or more network control packets and incrementally adjusts, based on the determining, a drop threshold parameter for the network control packets to give preference to the network control packets over non-network control packets. After the adjusting, the network device monitors traffic over the interface, and preempts, based on the monitoring, a low-priority label switched path (LSP) using the interface when the interface reaches a congested threshold or when the interface has dropped one or more other network control packets. The network device restores the low-priority LSP to the interface when the interface has reached an uncongested threshold.
    Type: Application
    Filed: November 29, 2010
    Publication date: May 31, 2012
    Applicant: VERIZON PATENT AND LICENSING INC.
    Inventors: Koutoung Chou, Joecylyn Malit, Shengping Shiau, Zhongping Pan
  • DAMPENING INTERFACE FLAPPING
    Publication number: 20110238843
    Abstract: A device may include a control module and a line card. The control module may be configured to run a routing protocol to obtain routing information from network devices. The line card may include a processor. The processor may be configured to establish a bidirectional forwarding detection (BFD) session with a remote device, determine whether an interface associated with the BFD session is flapping, terminate the BFD session when the interface is flapping, disable the interface when the interface is flapping, re-enable the interface after a dampening recovery period elapses, reestablish the BFD session, and send a BFD packet to the remote device.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 29, 2011
    Applicant: VERIZON PATENT AND LICENSING, INC.
    Inventors: Zhongping Pan, Shengping Shiau