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:
Dec. 05, 2006
Filed:
Oct. 19, 2001
Tuomo Syvanne, Vantaa, FI;
Tuomo Syvanne, Vantaa, FI;
Stonesoft Oy, Helsinki, FI;
Abstract
A method for handling dynamic state information used for handling data packets, which arrive at a network element node of a network element cluster, said network element cluster having at least two nodes and each node handling separate sets of data packets. In a node there is maintaineda first, node-specific data structure comprising entries representing state information needed for handling sets of data packets handled in said node. In said node there is also maintaineda second, common data structure comprising at least entries representing state information needed for handling sets of data packets handled in one other node of said network element cluster. The contents of said common data structure effectively differs from the contents of said node-specific data structure. Data packets are distributedto nodes of the cluster by means of distribution identifiers allocatedto nodes. Advantageously, information related to the distribution identifiers is includedin the entries of the data structures in order to identify to which node a set of data packets represented by a given entry belongs to at a given moment.