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. 25, 2002
Filed:
Jun. 18, 1999
Robbert Van Renesse, Ithaca, NY (US);
Reliable Network Solutions, Ithaca, NY (US);
Abstract
A replicated management information base (RMIB), or replicated spreadsheet, is maintained at nodes to share information among the nodes. The RMIB includes columns, or categories, of the information to be shared and rows for the respective “member” nodes. Each member node is responsible for the contents of its own row. When the node updates its row, the node sends out an update message to the other members. As the update message propagates through the membership, each member updates the row in its copy, or view, of the RMIB. The nodes may include version numbers in the update messages, so that the receiving node ignores older messages or applies the messages in order. The member nodes may gossip among themselves, to ensure that each node receives the most recent updates. Also, the nodes may monitor their respective network interfaces and send as updates any changes to the status of the interfaces. The nodes may also include the interface status information in the gossip messages, such that the receiving nodes send update information to active interfaces. The nodes may select nodes on each sub-network and send the update messages to the selected nodes. The selected nodes then broadcast the update messages to the members on their respective sub-networks.