SYSTEM, METHOD AND APPARATUS THAT EMPLOY VIRTUAL PRIVATE NETWORKS TO RESIST IP QoS DENIAL OF SERVICE ATTACKS - Patent 1374057

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EP 1 374 057 A1

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(43)	Date of publication:
	02.01.2004 Bulletin 2004/01

(21)	Application number: 02728525.3

(22)	Date of filing: 20.03.2002

(51)	International Patent Classification (IPC)⁷: G06F 11/30, G06F 12/14, H04L 9/00, H04L 9/32

(86)	International application number:
	PCT/US2002/008577

(87)	International publication number:
	WO 2002/075548 (26.09.2002 Gazette 2002/39)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

20.03.2001 US 276923 P
20.03.2001 US 276953 P
20.03.2001 US 276955 P
17.12.2001 US 23043

(71)	Applicant: Worldcom, Inc.
	Clinton, MS 39056 (US)

(72)	Inventor:
	MCDYSAN, David, E. Herndon, VA 20170 (US)

(74)	Representative: Hofmann, Harald
	Sonnenberg Fortmann,Postfach 33 08 65 80068 München 80068 München (DE)

(54)	SYSTEM, METHOD AND APPARATUS THAT EMPLOY VIRTUAL PRIVATE NETWORKS TO RESIST IP QoS DENIAL OF SERVICE ATTACKS