Patents by Inventor Daniel L. Schweitzer

Daniel L. Schweitzer 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).

  • Methods and systems for hitless switch management module failover and upgrade
    Patent number: 7483370
    Abstract: Methods and systems for hitless switch management module failover and upgrade are disclosed. According to one method, a master switch management module participates in network protocols and performs packet forwarding operations. The master switch management module distributes protocol state and packet forwarding information to the slave switch management module. The slave switch management module continuously monitors the operational state of the master switch management module. In response to detecting failure of the master switch management module or a forced failover initiated by the user interface on the master switch management module, the slave switch management module begins network protocol operation in the master mode in a state where the master switch management module last operated correctly.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 27, 2009
    Assignee: Extreme Networks, Inc.
    Inventors: Rana Dayal, Donald B. Grosser, Michael D. Mroz, Daniel L. Schweitzer