Patents by Inventor Yajun Xia

Yajun Xia 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).

  • Reducing traffic in a low power and lossy network based on removing redundant certificate from authentication message destined for constrained wireless device via authenticated wireless device
    Patent number: 10856170
    Abstract: In one embodiment, a method comprises: forwarding, by a root network device in a low power and lossy network, an authentication message to a constrained child network device having attached to the root network device, the authentication message generated by an authenticator device and specifying a certificate associated with the authenticator device; receiving a second authentication message destined for a second constrained network device via the constrained child network device; removing, from the second authentication message, the certificate; and outputting, by the root network device, the modified second authentication message that does not include the certificate toward the second constrained network device via the constrained child network device, the modified second authentication message causing the constrained child network device to restore the second authentication message for delivery to the second constrained network device, based on insertion of the certificate back into the modified second aut
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: December 1, 2020
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Yajun Xia, Chuanwei Li, Lele Zhang, Yinfang Wang