Patents by Inventor Yunfu YU

Yunfu YU 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).

  • Patent number: 9608897
    Abstract: The present invention discloses a method and a device for transferring a bootstrap message, and relates to the field of communications. The invention is intended to solve a problem in the prior art that a public network tunnel needs to be separately created for a bootstrap message, which consumes a tunnel resource. A technical solution provided in an embodiment of the present invention includes: receiving, by a first provider edge router, a bootstrap message sent by a bootstrap router; sending, by the first provider edge router, to a second provider edge router, a border gateway protocol BGP message including message content of the bootstrap message, so that after receiving the BGP message, the second provider edge router sends, to a customer edge router, the message content included in the BGP message. The embodiments of the present invention are applicable to a next generation multicast virtual private network.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 28, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yunfu Yu, Yisong Liu
  • Patent number: 9019952
    Abstract: Embodiments of the present invention provide a method and an apparatus for forwarding multicast traffic. The method includes: receiving a third multicast join message; in response to the third multicast join message, sending a first multicast join message to a first upstream router, and establishing an active path; in response to the third multicast join message, sending a second multicast join message to a second upstream router, and establishing a standby path; and sending multicast traffic to the multicast receiver through the active path, where the standby path does not forward the multicast traffic. In the foregoing embodiments, the standby path that does not forward the multicast traffic is established beforehand, so that when a fault occurs in the active path, the standby path established beforehand can be used to forward the multicast traffic.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: April 28, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tao Bai, Yunfu Yu, Gang Chen, Shuxue Fan, Hui Liu
  • Publication number: 20140082161
    Abstract: The present invention discloses a method and a device for transferring a bootstrap message, and relates to the field of communications. The invention is intended to solve a problem in the prior art that a public network tunnel needs to be separately created for a bootstrap message, which consumes a tunnel resource. A technical solution provided in an embodiment of the present invention includes: receiving, by a first provider edge router, a bootstrap message sent by a bootstrap router; sending, by the first provider edge router, to a second provider edge router, a border gateway protocol BGP message including message content of the bootstrap message, so that after receiving the BGP message, the second provider edge router sends, to a customer edge router, the message content included in the BGP message. The embodiments of the present invention are applicable to a next generation multicast virtual private network.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yunfu YU, Yisong Liu