(19)

(11)

EP 1 472 831 A1

(12)

(43) Date of publication: 03.11.2004 Bulletin 2004/45 (21) Application number: 02705975.7 (22) Date of filing: 25.01.2002

(51) International Patent Classification (IPC)7: H04L 12/56 (86) International application number: PCT/US2002/002170 (87) International publication number: WO 2003/065663 (07.08.2003 Gazette 2003/32)

(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 (71) Applicant: Cyneta Networks, Inc. Richardson, TX 75081 (US)	(72) Inventors: PATHAK. K., Jogen Irving, TX 75063 (US) KRISHNAMURTHY, Shridhar Coppell, TX 75019 (US) GOVINDARAJAN, Rangaprasad Plano, TX 75025 (US) (74) Representative: Jackson, Richard Eric et al Carpmaels & Ransford,43 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)