Cisco
Depends
Confidence: Medium
Buy if you're a large organization with dedicated network engineers and a multi-year infrastructure budget . it remains the default for enterprise networking.
Comparison
Cisco and Arista both land on Depends.
Buy if you're a large organization with dedicated network engineers and a multi-year infrastructure budget . it remains the default for enterprise networking.
Buy if you run large data center or campus networks with skilled network engineers on staff.
| Compare | Cisco | Arista |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Enterprises with dedicated network teams | Large data centers and cloud-scale networks |
| Who it's not for | Small businesses needing a few switches or Wi-Fi | Small businesses needing a handful of switches |
| Privacy | Active issues: an exploited ISE zero-day, a CISA KEV-listed email gateway CVE, and a claimed major breach . patch discipline is essential.⁶ | Active PSIRT program, but a VeloCloud Orchestrator flaw saw active exploitation and one exploited EOS vulnerability reportedly went unpatched. |
| Support quality | 1.7/5 Trustpilot; partner-dependent support | Users call TAC support the best |
| Public sentiment | Practitioners still rate Cisco's core networking as the preferred choice, but complain about licensing, pricing, and support.³ | Network engineers on Reddit strongly favor Arista over Cisco, especially praising its TAC support.15 |
| Biggest gotcha | Deep ecosystem lock-in; switching later to Arista or Juniper is a known pain | If you run Arista SD-WAN/VeloCloud, patch fast . orchestrator flaw was actively exploited |