(19)

(11)

EP 3 935 818 A1

(12)

(43) Date of publication: 12.01.2022 Bulletin 2022/02 (21) Application number: 20765904.6 (22) Date of filing: 31.01.2020

(51) International Patent Classification (IPC):  H04L 29/08(2006.01) (52) Cooperative Patent Classification (CPC): H04L 67/1014; H04L 67/1027; H04L 67/1023; H04L 67/1029; H04L 67/28 (86) International application number: PCT/US2020/016276 (87) International publication number: WO 2020/180436 (10.09.2020 Gazette 2020/37)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 06.03.2019 US 201916294829 06.03.2019 US 201916294851 06.03.2019 US 201916294840 (71) Applicant: Arista Networks, Inc. Santa Clara, CA 95054 (US)	(72) Inventors: CAPPER, Simon Santa Clara, California 95054 (US) KRAISER, Tula Santa Clara, California 95054 (US) KRISHNAMURTHY, Prashanth Santa Clara, California 95054 (US) LAM, Peter Santa Clara, California 95054 (US) (74) Representative: Richardson-Bullock, James Sedgwick  Withers & Rogers LLP 2 London Bridge London SE1 9RA London SE1 9RA (GB)