Enterprise and Core Networking is Arista's stable base — the foundation of proven, recurring revenue that supports the AI Cloud bet. Arista's Enterprise/Financials customers account for approximately one-third of total revenue, with steady growth driven by data center refresh cycles and the newer campus/branch push via the CX series. This segment grows predictably at mid-to-high single digits, anchored to comparable company multiples for enterprise networking.
The growth engine within enterprise is the campus push. Arista launched the CX series in 2023 and is targeting nearly doubling campus revenue to $1.25B in FY2026. Success here would open a large addressable market currently dominated by Cisco and its Meraki platform. However, campus is greenfield for Arista — the company has no installed base, no channel partnerships comparable to Cisco's, and must win customers one by one against an entrenched incumbent.
Why enterprise is the low-risk foundation
Enterprise networking is a proven, profitable business with predictable refresh cycles. Arista's operating margins far exceed networking peers — a function of the lean cost structure (5,115 employees vs Cisco's 85,000) and EOS software leverage. Even in the bear case, enterprise alone provides meaningful support for the stock.
Arista is expanding from data center into campus networking via its CX series, targeting $1.25B campus revenue in FY2026, up from ~$750M in FY2025 (a roughly 60% growth rate). Campus networking is a large TAM currently dominated by Cisco and its Meraki platform. Arista was recognized in the Visionaries Quadrant of the 2025 Gartner Magic Quadrant for Enterprise Wired and Wireless LAN Infrastructure, positioned as the vendor with the highest Ability to Execute in that quadrant. In December 2025, Arista announced VESPA (Virtual Ethernet Segment with Proxy ARP) for WLAN mobility and expanded AVA agentic AI for network operations. The campus push extends Arista's EOS platform advantage beyond the data center, but success requires building channel partnerships and an installed base from scratch against Cisco's entrenched position.
Arista targets $1.25B campus revenue in FY2026, up from ~$750M in FY2025, representing approximately 67% growth. CEO stated campus networking growth expected in the 60% range for 2...
Arista's WAN and routing business is bundled with campus under the broader enterprise expansion strategy. The combined campus and WAN business is targeting $1.25B in FY2026. Arista's routing portfolio spans data center interconnect (DCI), WAN edge, and peering, leveraging EOS as a unified platform for routing and switching. The WAN edge opportunity is smaller than campus but represents incremental TAM as Arista customers extend their EOS-managed network perimeter beyond the data center and campus. Competition comes from Juniper Networks (now part of HPE) and Cisco's traditional routing stronghold.
Arista's campus and WAN business combined is targeting $1.25B in FY2026, with WAN edge routing representing an incremental portion alongside the larger campus switching opportunity...