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:
Jan. 18, 2011
Filed:
Feb. 11, 2000
Kira Sterling Attwood, Chapel Hill, NC (US);
Linwood Hugh Overby, Jr., Raleigh, NC (US);
Chien-en Sun, Chapel Hill, NC (US);
Kira Sterling Attwood, Chapel Hill, NC (US);
Linwood Hugh Overby, Jr., Raleigh, NC (US);
Chien-En Sun, Chapel Hill, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The invention prevents server overload and possible server crippling due to a flooding of connectionless datagrams caused by intentional attack or otherwise. In response to a datagram from a host for a specified port, the number of datagrams already queued to the port from the host is determined. If this number exceeds a first threshold, the datagram is discarded. In the preferred embodiment, the threshold is determined by multiplying a percentage P by the number of available queue slots remaining for the port.