Technique of defending against network flooding attacks using a connectionless protocol

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7873991
SERIAL NO

09503608

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTERNATIONAL BUSINESS MACHINES CORPORATIONARMONK, NY46918

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Attwood, Kira Sterling Chapel Hill, US 4 119
Overby,, Jr Linwood Hugh Raleigh, US 16 27
Sun, Chien-En Chapel Hill, US 2 16

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FUJI XEROX CO., LTD. (1)
* 6125397 Data transfer apparatus and method using congestion recovery-type and congestion avoidance-type data transfers 52 1998
 
ATREVE SOFTWARE, INC. (1)
* 6317786 Web service 159 1998
 
MCAFEE, LLC (1)
* 6182226 System and method for controlling interactions between networks 373 1998
 
CISCO TECHNOLOGY, INC. (1)
* 6515963 Per-flow dynamic buffer management 87 1999
 
NYTELL SOFTWARE LLC (1)
* 5878224 System for preventing server overload by adaptively modifying gap interval that is used by source to limit number of transactions transmitted by source to server 56 1997
 
PURDUE RESEARCH FOUNDATION (1)
* 6725378 Network protection for denial of service attacks 113 1999
 
AVAYA INC. (1)
* 6219728 Method and apparatus for allocating shared memory resources among a plurality of queues each having a threshold value therefor 114 1996
 
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. (1)
* 6735702 Method and system for diagnosing network intrusion 108 1999
 
Network Engineering Software, Inc. (1)
* 6052788 Firewall providing enhanced network security and user transparency 161 1999
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Sprint Communications Company L.P. (3)
* 8464276 Channel monitoring in a messaging-middleware environment 1 2010
9092282 Channel optimization in a messaging-middleware environment 1 2012
9264338 Detecting upset conditions in application instances 0 2013
* Cited By Examiner

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