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:
Apr. 22, 2008
Filed:
Jul. 10, 2003
Nina Taft, San Francisco, CA (US);
Supratik Bhattacharyya, San Francisco, CA (US);
Christophe Diot, Villefranche sur mer, FR;
Sundar Iyer, Palo Alto, CA (US);
Nina Taft, San Francisco, CA (US);
Supratik Bhattacharyya, San Francisco, CA (US);
Christophe Diot, Villefranche sur mer, FR;
Sundar Iyer, Palo Alto, CA (US);
Sprint Communications Company L.P., Ooverland Park, KS (US);
Abstract
The present invention provides methods for deflecting the routing data packets in an IP network to avoid overloaded links and to alleviate link congestion. One method in accordance with the present invention is, when the next link on the shortest route path is congested, to deflect a data packet to an adjacent node with a decreasing cost to the destination that is not the next hop on the shortest route path to the destination. A further method in accordance with the present invention deflects a data packet to an intra-PoP node with a small increase in cost to the destination to avoid a congested link. These and other methods in accordance with the present invention may be used alone or in combination as a method for deflection routing data packets to alleviate and avoid link congestion in an IP network.