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:
Jan. 01, 2002
Filed:
Mar. 30, 2000
Guruduth S. Banavar, Yorktown Heights, NY (US);
Lukasz Opyrchal, Ann Arbor, MI (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A facility is provided for implementing a content-based publish-subscribe system using a group-based multicast. The facility includes mapping all possible groups of the publish-subscribe system to a smaller number of multicast groups, wherein the smaller number of multicast groups include brokers and the brokers have consumers. The mapping includes clustering the brokers of the publish-subscribe system into C clusters of multicast groups, wherein each cluster of the C clusters has its own subset of multicast groups, and wherein C>1. The clustered multicast groups are then used to forward an event to consumers within the content-based publish-subscribe system by multicasting the event up to C times, each multicasting being to a different cluster of the C clusters.