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.

Date of Patent:
Nov. 11, 2014

Filed:

Nov. 19, 2010
Applicants:

Suresh Vobbilisetty, San Jose, CA (US);

Phanidhar Koganti, Sunnyvale, CA (US);

Arun Mahajan, Palo Alto, CA (US);

Inventors:

Suresh Vobbilisetty, San Jose, CA (US);

Phanidhar Koganti, Sunnyvale, CA (US);

Arun Mahajan, Palo Alto, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01); H04L 12/26 (2006.01); H04L 12/701 (2013.01); H04L 12/721 (2013.01);
U.S. Cl.
CPC ...
H04L 45/00 (2013.01); H04L 43/0811 (2013.01); H04L 45/66 (2013.01);
Abstract

One embodiment of the present invention provides a system for testing reachability between two nodes within a network. During operation, the system transmits a network-testing request frame from a source node to a destination node, and in response to receiving a network-testing response frame corresponding to the request frame, the system determines reachability of the destination node. The network-testing request or response frame is not processed on an Internet Protocol (IP) layer.


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