Q2 2021 Financial Highlights & Product Launches

Arista Market Share vs Cisco High Speed Data Center Switching Market ARISTA 40% 78.1% 74.4% 35% Share in Dollars 71.4% 70.8% 80% 40% 75% 35% Share in Ports 65.9% 72% 67% 69.4% 60.6% 30% 70% 30% 64.7% 62% Arista 25% Arista 65% 25% 57% 51.6% 20% 18.0% 60% 20% 57.8% 16.9% 49.9% 17.3% 17.7% - 52% 17.0% 16.3% 14.6% 14.4% 14.7% 15% 55% 15% 47% 11.6% 12.0% 10.0% 42.4% 53.1% 49.8% 10% 7.8% 50% 10% 5.4% 3.5% Cisco 45.4% 5% 42.7% 45% 42% 36.5% 34.5% - 37% 0% 40% 0% 32% 2012 2013 2014 2015 2016 2017 2018 2019 2020 2012 2013 2014 2015 2016 2017 2018 2019 2020 9.3% 6.7% 4.9% Cisco 5% 12 Source: Crehan Research Datacenter Switch Market Share Report Q4'2020 Note: 10GbE and Higher - Excludes blade switches Copyright Arista 2021. All rights reserved.

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