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:
Mar. 22, 2005
Filed:
Jul. 06, 2000
Ross W. Callon, Westford, MA (US);
James D. Carlson, North Andover, MA (US);
Douglas C. Ehlert, Dunstable, MA (US);
Yuval Peduel, Sunnyvale, CA (US);
Ross W. Callon, Westford, MA (US);
James D. Carlson, North Andover, MA (US);
Douglas C. Ehlert, Dunstable, MA (US);
Yuval Peduel, Sunnyvale, CA (US);
Other;
Abstract
An apparatus and method for efficient hashing uses both an identifying portion of a data packet, e.g., source and destination ID, and an identifying value of the node, e.g., the IP address of the node, to generate a hash result. By inserting a unique value into the hash operation at each node, the invention effectively provides for a different hash implementation at each node. As a result, in situations where multiple paths or multiple links within a path are available to forward packets, traffic can be split over the multiple paths and links. Inefficient utilization of network links found in prior systems which use the same hash operation at each node are eliminated.