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(11)

EP 4 548 557 A1

(12)

(43) Date of publication: 07.05.2025 Bulletin 2025/19 (21) Application number: 23745011.9 (22) Date of filing: 28.06.2023

(51) International Patent Classification (IPC):  H04L 45/02(2022.01) H04L 61/103(2022.01) H04L 45/74(2022.01) (52) Cooperative Patent Classification (CPC): H04L 2101/622; H04L 61/103; H04L 45/04; H04L 45/74; H04L 61/59; H04L 2101/668; H04L 45/28 (86) International application number: PCT/US2023/069251 (87) International publication number: WO 2024/006822 (04.01.2024 Gazette 2024/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 28.06.2022 IN 202241036888 29.07.2022 US 202217816341 (71) Applicant: Cisco Technology, Inc. San Jose, California 95134-1706 (US)	(72) Inventors: KRATTIGER, Lukas Pleasanton, California 94588 (US) KAPADIA, Shyam San Jose, California 95134 (US) ARDICA, Massimiliano 06560 Valbonne (FR) GOPALKRISHNAN, Shankar Bangalore 560076 (IN) (74) Representative: Mathys & Squire  The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)