(19)

(11)

EP 1 815 332 A1

(12)

(43) Date of publication: 08.08.2007 Bulletin 2007/32 (21) Application number: 05737750.9 (22) Date of filing: 18.04.2005

(51) International Patent Classification (IPC):  G06F 9/46(2006.01) (86) International application number: PCT/US2005/013126 (87) International publication number: WO 2006/028521 (16.03.2006 Gazette 2006/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 07.09.2004 US 608173 P 07.09.2004 US 608177 P (71) Applicant: Starent Networks Corporation Tewksbury, MA 01876 (US)	(72) Inventor: MORTSOLF, Timothy, G. Palatine, IL 60074 (US) (74) Representative: Palmer, Jonathan R. et al Boult Wade Tennant, Verulam Gardens, 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)