Patents by Inventor Xiaopin Nie

Xiaopin Nie 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).

  • Multiple ring support within a single network element
    Patent number: 7623445
    Abstract: A network element receives frames from multiple ring networks. Each ring network linked to the network element is supported by a designated support program. The received frames are monitored for conditions indicative of a failure in one of the ring networks. Upon detection of a failure condition, the designated support program for the failing ring network is determined and notified. The designated support program then addresses the failure condition by, for example, switching to a backup link. In one example, the multiple ring networks are SONET BLSR networks.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: November 24, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Philippe Daniel, Paul Elliott, Keith Neuendorff, Phu Le, Xiaopin Nie, Brian Rushka
  • Method and system for detecting ring link provisioning mismatch
    Patent number: 7483398
    Abstract: A method for automatically detecting bi-directional link switched ring link provisioning errors. The method includes receiving an opaque link state advertisement containing bi-directional link switched ring ID and link information at a local node of the ring and checking ring IDs of neighbor nodes of the local node. If the ring IDs of the local node and neighbor nodes do not match a ring ID mismatch alarm is raised.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: January 27, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Jin Huai, Wanq-Der Lee, Xiaopin Nie
  • Multiple ring support within a single network element
    Patent number: 6992975
    Abstract: A network element receives frames from multiple ring networks. Each ring network linked to the network element is supported by a designated support program. The received frames are monitored for conditions indicative of a failure in one of the ring networks. Upon detection of a failure condition, the designated support program for the failing ring network is determined and notified. The designated support program then addresses the failure condition by, for example, switching to a backup link. In one example, the multiple ring networks are SONET BLSR networks.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: January 31, 2006
    Assignee: Cisco Technology, Inc.
    Inventors: Philippe Daniel, Paul Elliott, Keith Neuendorff, Phu Le, Xiaopin Nie, Brian Rushka