Patents by Inventor Zhiqiang Qian

Zhiqiang Qian 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).

  • Publication number: 20090238077
    Abstract: A method and apparatus for providing automated processing of a virtual connection alarm on a packet network, e.g., a Virtual Private Network (VPN), are disclosed. For example, the method receives an alarm related to at least one virtual connection for a virtual private network (VPN) from a provider edge (PE) router, and determines whether the VPN has reached a first threshold for a maximum number of virtual connections or a second threshold for a pre-determined percentage of the maximum number of virtual connections. The method generates a new ticket or updating an existing ticket in response to the alarm if either the first threshold or the second threshold is reached.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 24, 2009
    Inventors: Paritosh Bajpay, Mojgan Dardashti, Zhiqiang Qian, Michael John Zinnikas
  • Publication number: 20090219823
    Abstract: A method and apparatus for automating hub and spoke network trouble diagnostics in a communication network are disclosed. For example, the method retrieves provisioning and configuration data, access interface alarm information, and network facility status data related to the communication network by a diagnostic system, and identifies at least one of: a network configuration error, an access interface error, or a configuration error associated with at least one hub router or at least one spoke router, as the root cause of the problem of the communication network.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: ZHIQIANG QIAN, Thomas Anderson, Paritosh Bajpay, Jackson Liu, Sanjeeta Mohapatra, John Rowan, Michael Zinnikas
  • Publication number: 20090161556
    Abstract: Systems and techniques for fault analysis in a data communication system. A fault analysis console in a provider network serving one or more customer networks responds to a reported loss of connectivity in the customer network by analyzing traffic statistics for a router serving the customer network. If traffic statistics indicate network functionality, border gateway protocol status is evaluated for logical channels being served by the router. Test communications are performed for customer edge router addresses for the logical channels and border gateway protocol status is evaluated for each customer edge router address. Test communications are then performed from a local provider edge router to each remote customer edge router being served.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 25, 2009
    Inventors: Zhiqiang Qian, Paritosh Bajpay, Mojgan Dardashti, Michael J. Zinnikas
  • Publication number: 20090161549
    Abstract: A system and method directed to diagnosing a problem associated with a route group in a network are disclosed. A problem associated with a route group is diagnosed by comparing inventory information associated with a route group to current route information associated with a router, where the router is associated with the route group. The process followed for diagnosing a problem associated with a route group depends on whether there is a mismatch between the inventory route information and the current route information.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: AT&T SERVICES, INC.
    Inventors: Zhiqiang Qian, Paritosh Bajpay, Jackson Liu, Michael Zinnikas
  • Publication number: 20090138588
    Abstract: A service provider unit automatically diagnoses problems in an Ethernet network that are associated with layers 1, 2, and/or 3 and determines whether there is a problem associated with an Ethernet gateway switch EGS. Further diagnostics can be performed to determine the layer, type, and/or location of the problem(s) based on whether there is a problem with the EGS. The diagnostic process followed depends on the types of problem(s) in the network. Once the problems have been diagnosed, an operator can be notified of the location and/or type of problem.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Applicant: AT&T SERVICES, INC.
    Inventors: Zhiqiang Qian, Paritosh Bajpay, Anamaria Csupor, Jackson Liu, Carlos Morales, Michael Zinnikas
  • Publication number: 20090129260
    Abstract: Certain exemplary embodiments can provide a method that can comprise automatically rendering information indicative of a cause of a failure in a Virtual Private Network (VPN) that comprises one or more routers that utilize Virtual Routing and Forwarding (VRF) tables to route traffic via the VPN. The cause of the failure can be automatically determined.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 21, 2009
    Inventors: Zhiqiang Qian, Paritosh Bajpay, Moigan Dardashti, Jackson Liu, Michael Zinnikas
  • Publication number: 20080159154
    Abstract: A method and apparatus for providing automated processing of point-to-point protocol alarms over Synchronous Digital Hierarchy (SDH) networks are disclosed. For example, the method receives an alarm for a Point-to-Point Protocol (PPP) service over a Synchronous Digital Hierarchy (SDH) network and determines whether said alarm is related to a problem associated with a Layer 2 network, a Layer 3 network, a connectivity between a provider edge router (PER) to a customer edge router (CER). The method then generates a ticket in response to said problem.
    Type: Application
    Filed: January 1, 2007
    Publication date: July 3, 2008
    Inventors: Paritosh Bajpay, Roberta Bienfait, Mojgan Dardashti, Jackson Liu, Zhiqiang Qian