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:
May. 16, 2006
Filed:
Sep. 28, 2001
Richard Bradford, Westford, MA (US);
Daniel C. Tappan, Boxborough, MA (US);
Richard Bradford, Westford, MA (US);
Daniel C. Tappan, Boxborough, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Systems and methods for link discovery and verification that minimize the need for line termination resources to generate and interpret packets. To verify a link between two nodes, a first of the nodes toggles light or another signal output by one of its ports while the other node attempts to detect the toggling through its own ports. A link is therefore verified between the port that is toggling and the port that detects the toggling. This link verification technique does not require packet termination capability at either node. Furthermore, this link verification technique is very simple and may be executed very quickly even at nodes having a very large number of ports to which links maybe established.