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. 27, 2017
Filed:
Mar. 18, 2011
Vach P. Kompella, Cupertino, CA (US);
Pranjal K. Dutta, Sunnyvale, CA (US);
Vach P. Kompella, Cupertino, CA (US);
Pranjal K. Dutta, Sunnyvale, CA (US);
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
A u-turn fast rerouting capability is provided. A first node propagates a packet toward a second node based on selection of a first routing path for routing the packet from the first node toward an intended destination node. The second node received the packet, determines that the packet cannot be delivered to the destination node via the first routing path, inserts a u-turn label into the packet, and returns the packet to the first node. The u-turn label indicates that the packet is being returned to the first node by the second node due to a condition preventing propagation of the packet toward the destination node using the first routing path. The first node receives the packet including the u-turn label, selects a second routing path for routing the packet toward the destination node, and propagates the packet toward the destination node based on the second routing path.