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. 21, 2015
Filed:
Oct. 19, 2012
Muthurajah Sivabalan, Kanata, CA;
Sami Boutros, San Ramon, CA (US);
George Leonard Swallow, Boston, MA (US);
Show Chung Chin, Fairfield, CA (US);
Muthurajah Sivabalan, Kanata, CA;
Sami Boutros, San Ramon, CA (US);
George Leonard Swallow, Boston, MA (US);
Show Chung Chin, Fairfield, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a primary bidirectional LSP is established between an originating LSP packet switching device and a destination LSP packet switching device through an intermediate packet switching device. A corresponding backup LSP is also established. The originating LSP packet switching device sends a particular label switched packet to the destination LSP packet switching device over the primary bidirectional LSP. An intermediate packet switching device sends the particular label switched packet back to the originating LSP packet switching device over the primary bidirectional LSP in response to an error condition identified as affecting the primary bidirectional LSP towards the destination LSP packet switching device. The originating LSP packet switching device receives the particular label switched packet and sends it to the destination packet switching device over the backup LSP.