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. 20, 2010
Filed:
Nov. 25, 2005
Applicants:
Saravan Arunachalam, Sunnyvale, CA (US);
Hugh Barrass, Milpitas, CA (US);
Inventors:
Saravan Arunachalam, Sunnyvale, CA (US);
Hugh Barrass, Milpitas, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/66 (2006.01); H04L 5/16 (2006.01); H04B 1/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method, system and apparatus are provided for detecting a loop-back in a physical layer on an Ethernet link. In the physical layer, a device sends a base page on the Ethernet link. The base page has at least one next page capability bit set. Subsequently, the device receives a received base page. Thereafter, for detecting the loop-back, the next page capability bit is set in the received base page is determined.