Patents by Inventor Peter P. Lei

Peter P. Lei 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).

  • Technique for determining multi-path latency in multi-homed transport protocol
    Patent number: 7761562
    Abstract: The present invention describes various techniques which may be used for determining multi-path latency in data networks which utilize a multi-homed transport protocols. Using the technique of the present invention, for example, appropriate source and destination addresses may be selected for specific IP datagrams in order to achieve an optimal communication path between endpoints which utilize a multi-homed transport protocol.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 20, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Randall R. Stewart, Peter P. Lei, Ken A. Morneault
  • Methods and apparatus for using SCTP to provide mobility of a network device
    Patent number: 7457882
    Abstract: Methods and apparatus for supporting mobility using SCTP are disclosed. In accordance with one aspect of the invention, an SCTP association between a first network device and a second network device may be modified. The SCTP association includes a first set of IP addresses associated with the first network device and a second set of IP addresses associated with the second network device. The first network device establishes the SCTP association between the first network device and the second network device. An SCTP configuration message is then sent from the first network device to the second network device, the configuration message indicating a modification to be made to the SCTP association, thereby enabling the SCTP association to be modified without disconnecting an existing session.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: November 25, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Randall R. Stewart, Peter P. Lei
  • Technique for determining multi-path latency in multi-homed transport protocol
    Patent number: 7277954
    Abstract: The present invention describes various techniques which may be used for determining multi-path latency in data networks which utilize a multi-homed transport protocols. Using the technique of the present invention, for example, appropriate source and destination addresses may be selected for specific IP datagrams in order to achieve an optimal communication path between endpoints which utilize a multi-homed transport protocol.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: October 2, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Randall A. Stewart, Peter P. Lei, Ken A. Morneault
  • Methods and apparatus for using SCTP to provide mobility of a network device
    Patent number: 7051109
    Abstract: Methods and apparatus for supporting mobility using SCTP are disclosed. In accordance with one aspect of the invention, an SCTP association between a first network device and a second network device may be modified. The SCTP association includes a first set of IP addresses associated with the first network device and a second set of IP addresses associated with the second network device. The first network device establishes the SCTP association between the first network device and the second network device. An SCTP configuration message is then sent from the first network device to the second network device, the configuration message indicating a modification to be made to the SCTP association, thereby enabling the SCTP association to be modified without disconnecting an existing session.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: May 23, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Randall R. Stewart, Peter P. Lei