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:
Oct. 02, 2007

Filed:

Jul. 11, 2002
Applicants:

Myongsu Choe, Montreal, CA;

Jack C. Wybenga, Plano, TX (US);

Pradeep Samudra, Plano, TX (US);

Inventors:

Myongsu Choe, Montreal, CA;

Jack C. Wybenga, Plano, TX (US);

Pradeep Samudra, Plano, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/66 (2006.01); H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A parallel router comprising: 1) a plurality of routing nodes, each of the plurality of routing nodes capable of receiving message packets from and transmitting message packets to external devices, wherein the each of the plurality of routing nodes maintains a routing table suitable for routing message packets from transmitting ones of the plurality of routing nodes to receiving ones of the plurality of routing nodes; and 2) a switch fabric capable of transmitting the messages packets between the transmitting nodes and the receiving nodes, wherein a designated one of the plurality of routing nodes is operable to transmit to at least one non-designated one of the plurality of routing nodes a hello request message operable to cause the non-designated routing node to transmit back a hello acknowledgment message, wherein the designated routing node monitors a time duration between transmission of the hello request message and receipt of the hello acknowledgment message to determine if the non-designated routing node has failed.


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