Patents by Inventor Arvind Ramarajan

Arvind Ramarajan 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).

  • Method and apparatus for isolating label-switched path impairments
    Patent number: 8705374
    Abstract: A method and apparatus for diagnosing and isolating label-switched-path impairments in a network are disclosed. For example, the present method receives an impairment notification indicating a potential impairment for at least one label switched path between a source device and a destination device. The method then identifies all routers along each of the at least one label switched path. The method then determines automatically whether each of the routers along each of the at least one label switched path is enabled for exchanging label mapping information. Finally, the method identifies at least one of the at least one label switched path as being impaired if at least one of the routers on the switched path is deemed not enabled for exchanging label mapping information.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: April 22, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Kevin D'Souza, Arvind Ramarajan, Leah Zhang