Patents by Inventor Ning X. Li

Ning X. Li 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 system for scaling network traffic managers
    Patent number: 9209990
    Abstract: A method and system is directed to routing a flow of packets over a network to multiple traffic management devices. An apparatus receives each packet from a network and forwards the packet to one of a group of traffic management devices. The apparatus also may receive packets from servers for which the traffic management devices are managing communications. When forwarding packets, a traffic management device is selected from the group of traffic management devices by employing a hash of an IP address and port number. The IP address and port number are selected from source or destination information in the packet that has a greater port number. When the traffic management device performs a network address translation, further actions may be performed so that packets that are part of a flow between two network devices are delivered to the same traffic management device.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: December 8, 2015
    Assignee: F5 Networks, Inc.
    Inventors: Paul Szabo, David D. Schmitt, Ning X. Li
  • Method and system for scaling network traffic managers
    Patent number: 7702809
    Abstract: A method and system is directed to routing a flow of packets over a network to multiple traffic management devices. An apparatus receives each packet from a network and forwards the packet to one of a group of traffic management devices. The apparatus also may receive packets from servers for which the traffic management devices are managing communications. When forwarding packets, a traffic management device is selected from the group of traffic management devices by employing a hash of an IP address and port number. The IP address and port number are selected from source or destination information in the packet that has a greater port number. When the traffic management device performs a network address translation, further actions may be performed so that packets that are part of a flow between two network devices are delivered to the same traffic management device.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: April 20, 2010
    Assignee: F5 Networks, Inc.
    Inventors: Paul Szabo, David D. Schmitt, Ning X. Li
  • Method and system for scaling network traffic managers
    Patent number: 7395349
    Abstract: A method and system is directed to routing a flow of packets over a network to multiple traffic management devices. An apparatus receives each packet from a network and forwards the packet to one of a group of traffic management devices. The apparatus also may receive packets from servers for which the traffic management devices are managing communications. When forwarding packets, a traffic management device is selected from the group of traffic management devices by employing a hash of an IP address and port number. The IP address and port number are selected from source or destination information in the packet that has a greater port number. When the traffic management device performs a network address translation, further actions may be performed so that packets that are part of a flow between two network devices are delivered to the same traffic management device.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: July 1, 2008
    Assignee: F5 Networks, Inc.
    Inventors: Paul Szabo, David D. Schmitt, Ning X. Li