Arista Networks (ANET 6.68%) and Cisco Systems (CSCO 1.60%) represent two different ways to invest in the networking infrastructure and software market. Arista is a smaller, higher-growth player focused on data centers and cloud-scale networks, while Cisco is the more diversified market leader serving a wider range of sectors. Over the past five years, Arista's stock rallied nearly 540% as Cisco's stock advanced about 50%. The S&P 500 rose more than 90% during that period. Let's see why Arista consistently ...