SYSTEM, METHOD AND APPARATUS THAT ISOLATE VIRTUAL PRIVATE NETWORK (VPN) AND BEST EFFORT TRAFFIC TO RESIST DENIAL OF SERVICE ATTACKS - Patent 1371178

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EP 1 371 178 A1

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(43)	Date of publication:
	17.12.2003 Bulletin 2003/51

(21)	Application number: 02719278.0

(22)	Date of filing: 20.03.2002

(51)	International Patent Classification (IPC)⁷: H04L 12/28

(86)	International application number:
	PCT/US0208/345

(87)	International publication number:
	WO 0207/6029 (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 23332

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

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

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

(54)	SYSTEM, METHOD AND APPARATUS THAT ISOLATE VIRTUAL PRIVATE NETWORK (VPN) AND BEST EFFORT TRAFFIC TO RESIST DENIAL OF SERVICE ATTACKS