(19)

(11)

EP 4 825 028 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24828279.0 (22) Date of filing: 09.12.2024

(51) International Patent Classification (IPC):  H04L 45/24(2022.01) H04L 45/302(2022.01) (52) Cooperative Patent Classification (CPC): H04L 45/24; H04L 45/308; H04L 45/306; H04L 45/124 (86) International application number: PCT/US2024/059190 (87) International publication number: WO 2025/128486 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 13.12.2023 US 202363609842 P 18.03.2024 US 202418608769 (71) Applicant: Cisco Technology, Inc. San Jose, California 95134-1706 (US)	(72) Inventors: BARUAH, Pritam Fremont, California 94555 (US) MAHADEVAN, Satish San Ramon, California 94582 (US) SHAH, Avinash Pleasanton, California 94588 (US) SREENATH, Sanjay San Jose, California 95129 (US) (74) Representative: Mathys & Squire  32 London Bridge Street The Shard London SE1 9SG London SE1 9SG (GB)