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:
Nov. 03, 2015
Filed:
Mar. 05, 2014
Huawei Technologies Co., Ltd., Shenzhen, CN;
Weifeng Li, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
Embodiments of the present invention provide a method for generating a label forwarding table for a non-destination router on a ring topology. Embodiments of the present invention further provide an apparatus for generating a label forwarding table for a non-destination router on a ring topology and a method and system for generating two label switching paths LSPs of different ring directions on a ring topology. Technical solutions provided by the embodiments of the present invention are based on a clockwise label forwarding table and a counterclockwise label forwarding table that are generated for each non-destination router on the ring topology. When it is found that traffic cannot be forwarded to a destination router by using one of the two label forwarding tables, the non-destination router performs traffic switching and uses the other label forwarding table to forward the traffic.