Q2 2021 Financial Highlights & Product Launches

Product and Market Sector Contributions Product Trends* Cognitive ARISTA Market Sector Trends* Providers Network (Telco SP & Specialty Cloud) Core ~20-25% Cloud Titans ~25%-30% ~35%-39% ~10-15% ~60-65% ~35%-39% Cognitive Adjacencies 13 - Core Data Center & Cloud Networks Cognitive Adjacencies - Campus & Routing Cognitive Network - SW & Services Enterprise (incl. Financials) *Management estimates of expected quarterly business mix trends over-time Copyright Arista 2021. All rights reserved. Geographic Mix Q2'21 APAC EMEA 11% 16% 73% Americas

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