Arista Networks vs Cisco: Switching & NICs compared

November 2026 edition · assessment by Frontier Tech Intelligence

Arista Networks ranks 21 on the AI Infra 100 with a score of 96; Cisco ranks 51 with 90. Arista Networks is ahead on production, progress and positioning. Level on deployment, commercials, technology, firepower and leverage. Arista Networks is based in Santa Clara, United States, Cisco in San Jose, United States. Arista Networks is named in 24 signals and Cisco in 120.

Arista Networks →

Santa Clara, California, United States · AI Core · Networking & interconnect / Switching & NICs · arista.com

Arista Networks builds Ethernet switching platforms for data centers and AI fabrics, including 800G and 1.6T AI networking platforms and data-center interconnects.

AI Infra 100 · rank 21 · score 96

Scores, AI Core (of 10)

Deployment10
Production10
Commercials10
Progress10
Technology8
Positioning10
Firepower10
Leverage10

Darker bar: ahead of the other company on that measure.

Positioning

The leading merchant supplier of Ethernet switching for AI clusters (front-end and back-end fabrics, now 1.6T platforms), built on Broadcom silicon; the pure-play read on Ethernet's share against Nvidia's InfiniBand and NVLink.

Latest signals

  • Arista Networks unveiled an XPO concept offering up to 12.8 Tbps per pluggable optics module.The Register
  • The Optical Internetworking Forum began standardizing a 6.4 Tbps near-packaged optics interface with a path to 12.8 Tbps.The Register
  • d-Matrix rolled out the SquadRack reference design with Arista Networks, Broadcom, and Supermicro.The Next Platform

24 signals name Arista Networks.

Facts, with sources

  • >500mThe Register
  • OIF standardizing a 6.4 Tbps near-packaged optics interface with a path to 12.8 TbpsThe Register
  • XPO concept offering up to 12.8 Tbps per pluggable optics moduleThe Register

15 facts on file.

Cisco →

San Jose, California, United States · AI Core · Networking & interconnect / Switching & NICs · cisco.com

Cisco's core business is building and selling enterprise, cloud-provider, carrier, and data-center networking equipment, including high-end routers, aggregation equipment, and modular switches.

AI Infra 100 · rank 51 · score 90

Scores, AI Core (of 10)

Deployment10
Production8
Commercials10
Progress9
Technology8
Positioning8
Firepower10
Leverage10

Darker bar: ahead of the other company on that measure.

Positioning

The incumbent networking vendor turned second hyperscale AI switching supplier (Silicon One silicon, Nexus systems, optics); slower than Arista but now booking multi-billion hyperscaler AI orders.

Latest signals

  • Cisco and PSA Singapore will trial an AI platform to reduce Tuas Port outages.Tech in Asia
  • Cisco expanded its network platforms with AI-assisted operations, ThousandEyes testing, and secure access for AI agents.Heise
  • Cisco open-sourced Project Quarry to detect and evaluate AI agents engaged in hacking activity.The Register

120 signals name Cisco.

Facts, with sources

  • >500mwww.eenewseurope.com — 2026-09-16
  • Built an AI stack for government agencies with NVIDIA and Palantirwww.heise.de — 2026-09-15
  • Ranked first by revenue share in high-end routing and aggregation equipment and in the cloud-provider segmentElectronics Weekly

33 facts on file.

Questions this page answers

Arista Networks or Cisco: which is ahead in ai core?

Arista Networks ranks 21 on the AI Infra 100 with a score of 96; Cisco ranks 51 with 90. Arista Networks is ahead on production, progress and positioning. Level on deployment, commercials, technology, firepower and leverage. Arista Networks is based in Santa Clara, United States, Cisco in San Jose, United States. Arista Networks is named in 24 signals and Cisco in 120.

How do Arista Networks and Cisco compare?

Arista Networks ranks 21 on the AI Infra 100 with a score of 96; Cisco ranks 51 with 90. Arista Networks is ahead on production, progress and positioning. Level on deployment, commercials, technology, firepower and leverage. Arista Networks is based in Santa Clara, United States, Cisco in San Jose, United States. Arista Networks is named in 24 signals and Cisco in 120. Both company files carry the scores on eight measures, the facts with sources and the latest signals.

Every comparison here comes from the same files members use every day.

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