The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2008
Filed:
Apr. 11, 2002
James D. Muchow, Zimmerman, MN (US);
Mark Bakke, Maple Grove, MN (US);
James D. Muchow, Zimmerman, MN (US);
Mark Bakke, Maple Grove, MN (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A node (, FIG.), within a networked computer system (), is capable of supporting communications with other nodes relating to operating multiple application instances in a master-slave configuration. The node initiates (, FIG.) and maintains (FIGS.) a state diagram (FIG.) for each application instance currently running in the master-slave configuration on the node or the other nodes. In addition, the node listens for new application instances that are discovered on the node or on the other nodes. The nodes can be interconnected using multiple networks (, FIG.), and redundant messages received by the node can be ignored (FIG.), if those redundant messages would adversely affect maintenance of the state diagram for an application instance. When a node determines that it should no longer operate as a master for an application instance, the node can initiate a resignation process (FIG.), during which another node will attempt to become the master for the application instance.