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:
Jul. 26, 2001
C. Steven Lingafelt, Durham, NC (US);
Daniel Edward Mcconnell, Raleigh, NC (US);
Francis E. Noel, Jr., Durham, NC (US);
Charles J. Sannipoli, Raleigh, NC (US);
C. Steven Lingafelt, Durham, NC (US);
Daniel Edward McConnell, Raleigh, NC (US);
Francis E. Noel, Jr., Durham, NC (US);
Charles J. Sannipoli, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system comprising a network resource server or a server farm formed by a plurality of computer systems and a network processor which transfers data exchanged with an external network supported by the server farm at a data rate substantially the same as the data flow rate of the network and related method. The network processor protects the network resource server against attacks such as a denial of service attack by monitoring data flow, computing a derivative of the data flow over time to determine the rate of change of data flow, and modifying instructions for the discarding of packets in response to rates of change which are outside predetermined boundaries.