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:
Feb. 02, 2016
Filed:
Oct. 04, 2013
Applicant:
Rpx Clearinghouse Llc, San Francisco, CA (US);
Inventors:
Haldon Sandick, Durham, NC (US);
Matthew Squire, Raleigh, NC (US);
Bradley Cain, Cambridge, MA (US);
Ian Duncan, Ottawa, CA;
Brian Haberman, Hillsborough, NC (US);
Assignee:
RPX CLEARINGHOUSE LLC, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 29/06 (2006.01); H04L 12/803 (2013.01); H04L 12/751 (2013.01); H04L 12/24 (2006.01);
U.S. Cl.
CPC ...
H04L 65/1069 (2013.01); H04L 41/00 (2013.01); H04L 43/0811 (2013.01); H04L 45/02 (2013.01); H04L 45/026 (2013.01); H04L 47/125 (2013.01);
Abstract
A method and apparatus for quickly determining the status of a network device in a network communicates status inquiry messages over the forwarding plane of one network device to at least one neighboring network device. The status inquiry messages indicate the connectivity status with at least one neighboring network device.