Arista Modular Switches Aim At Scale Across Networks, Hit Scale Out, Too

Arista Modular Switches

Chip designs are expanding beyond lithography machine limits, making chiplets and high-bandwidth interconnects necessary.

AI training workloads are also driving the need for scale-out networks, connecting multiple datacenters or regions.

Given all the attention on leaf and spine architectures, it may seem retro to focus on big, modular switches.

However, suppliers like Arista are still developing modular switches, such as the "Magnum" InfiniBand with 3,456 ports.

Author's summary: Arista develops modular switches for scale-out networks.

The Next Platform — 2025-11-04