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:
Sep. 24, 2013
Filed:
Aug. 04, 2010
Clarence Filsfils, Brussels, BE;
Ian Michael Charles Shand, Cobham, GB;
Clarence Filsfils, Brussels, BE;
Ian Michael Charles Shand, Cobham, GB;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An example method is provided and includes advertising information to network elements in a network environment. The information advertises a reachability characteristic of a first Internet protocol (IP) address associated with a first network element, and a second IP address associated with a second network element to which packets are to be sent instead of the first network element. The method also includes receiving the packets at the first network element, the packets being delivered from the second network element based on the information. In specific implementations, a preferred adjacency characteristic is identified in the information by a sub-TLV for routing the packets from the second network element to the first network element. If a failure occurs and a loop free alternate (LFA) protection mechanism is provisioned, the packets are sent via a label distribution protocol (LDP) label switched path (LSP) toward a designated interface of a network element.