Arista Networks was founded to deliver software defined cloud networking solutions for large data center and high-performance computing environments. The award-winning Arista 7500 Series introduced in April 2010 set new records for maximizing data center performance, efficiency and overall network reliability with port count densities that enabled consolidation of what was traditionally three-tier Core/Aggregation/Access designs into two-tier Spine/Leaf designs. The introduction of Arista 7500E Series linecards and fabrics in 2013 provided a 3x increase in capacity/density/performance on the Arista 7500 Series, cementing three-tier designs as designs of the past. With the introduction of the Arista 7300 Series switches, Arista now provides the flexibility to further collapse network layers with the introduction of the single-tier Spline™ (combined Spine/Leaf) network designs. This whitepaper details Arista’s two-tier Spine/Leaf and single-tier Spline Universal Cloud Network designs that provide unprecedented scale, performance and density without proprietary protocols, lock-ins or forklift upgrades.
