Dell PowerSwitch vs Arista
Dell PowerSwitch
Arista
Dell PowerSwitch and Arista both build open, merchant-silicon data center switches for spine-leaf fabrics, but they sit at different points on the buying spectrum. Arista is the purpose-built networking specialist with a single, mature operating system and a deep cloud and AI-fabric pedigree, while Dell PowerSwitch leads with open networking flexibility, OS choice (SmartFabric OS10 or Enterprise SONiC), and the leverage of a full-stack server-storage-network vendor. The right pick usually comes down to whether the customer values networking depth and a unified NOS, or open-NOS freedom and single-vendor infrastructure consolidation.
Side by side
| Dell PowerSwitch | Arista | |
|---|---|---|
| Operating system | Choice of Dell SmartFabric OS10 (Linux-based, enterprise feature set) or Enterprise SONiC Distribution by Dell; hardware is ONIE-based so third-party NOSes can also be installed | Arista EOS, a single Linux-based OS image used across the entire portfolio from 1U top-of-rack to modular chassis |
| Hardware approach | Open networking switches built largely on Broadcom merchant silicon, sold disaggregated (hardware and OS licensed separately) | Merchant-silicon switches (primarily Broadcom, with some other ASICs) sold as integrated appliances with EOS |
| Management and automation | SmartFabric Manager / SmartFabric Services for fabric orchestration; OpenConfig, REST API, gNMI and streaming telemetry on SONiC | CloudVision for fabric-wide telemetry, change management with rollback, topology visualization and ZTP; eAPI and OpenConfig |
| Open standards and lock-in | Strong open-networking posture: ONIE boot, SONiC (open-source-rooted NOS), and the ability to run alternate operating systems on the same hardware | EOS is proprietary, but runs standard protocols (BGP EVPN/VXLAN) and uses open telemetry standards; some EOS deployment on white-box hardware is possible |
| AI / high-performance fabrics | Enterprise SONiC adds RoCE congestion control, dynamic load balancing, resilient hashing and adaptive routing aimed at GenAI/RDMA workloads | Long track record in large-scale cloud and AI back-end fabrics, with high-radix and high-speed (including 400G/800G-class) platforms and mature EVPN/VXLAN |
| Vendor scope | Part of Dell Technologies' full server, storage and networking stack, enabling single-vendor purchasing, support and lifecycle alignment | Networking-focused specialist; deep switching and routing expertise but not a server/storage supplier |
| Support and lifecycle | Dell ProSupport / ProSupport Plus, including support tiers for SONiC; OS10 requires a perpetual license after the trial period | Arista TAC, widely regarded for networking-specialist support quality, plus A-Care service options |
Shop these now
Live configurations from our catalog with partner pricing. Add to your cart to request a firm quote, or build a full BOM.
Dell PowerSwitch
Arista
Choose Dell PowerSwitch when
Choose Dell PowerSwitch when the customer wants open-networking flexibility and OS choice — SmartFabric OS10 or Enterprise SONiC on ONIE hardware, with freedom to run alternate NOSes and avoid single-NOS lock-in. It is especially compelling when the account is already standardizing on Dell servers and storage (PowerEdge, PowerStore, PowerFlex) and values single-vendor purchasing, support and lifecycle alignment, or when SONiC and open standards are a strategic requirement. Budget-sensitive deployments often benefit from the disaggregated hardware-plus-OS licensing model.
Choose Arista when
Choose Arista when networking depth and operational consistency are the priority. A single EOS image across every platform, mature CloudVision telemetry and change-management-with-rollback, and a long pedigree in hyperscale cloud and AI back-end fabrics make it a strong fit for large, automation-heavy spine-leaf and AI/ML clusters. It also suits teams that want a networking-specialist vendor with a dedicated TAC reputation and are comfortable standardizing on a proprietary (but standards-based) NOS.
Both are credible, merchant-silicon, standards-based choices, and many fabrics could be built well on either. Arista tends to win on networking specialization: one consistent EOS image, CloudVision operations, and a deep cloud/AI-fabric track record that reassures large, automation-driven networking teams. Dell PowerSwitch tends to win on openness and consolidation: real NOS choice (OS10 or SONiC), ONIE flexibility, and the pull of a single Dell stack for accounts already invested in PowerEdge and PowerStore. As a reseller, qualify on three questions — is the customer a Dell server/storage shop, do they want open SONiC or a single proprietary NOS, and how large and automation-intensive is the fabric — and the recommendation usually becomes clear.
Talk to a specialistFrequently asked
Do Dell PowerSwitch and Arista use the same kind of hardware?
Largely yes. Both lean heavily on Broadcom merchant silicon for their data center switches, so raw forwarding capability is often comparable at similar port speeds and configurations. The bigger differences are in the operating system, management tooling, and commercial model rather than the underlying ASICs. Exact throughput, port density and buffer specs vary by individual model, so always validate against the specific platform in a deal.
Can I run open-source SONiC on both?
They take different paths. Dell sells Enterprise SONiC Distribution by Dell Technologies and ships ONIE-based PowerSwitch hardware, so SONiC (and alternate NOSes) is a first-class, supported option. Arista's switches run Arista EOS, a proprietary OS; EOS is the standard way to operate Arista hardware. If open-NOS flexibility and SONiC are a hard requirement, that favors Dell PowerSwitch.
Which is better for an AI or high-performance cluster fabric?
Both target this space and either can work. Arista brings a long, proven track record in large cloud and AI back-end fabrics with mature EVPN/VXLAN and high-speed platforms. Dell counters with Enterprise SONiC features such as RoCE congestion control, dynamic load balancing, resilient hashing and adaptive routing aimed at GenAI/RDMA traffic. The right answer depends on scale, existing tooling, and whether the customer prefers EOS/CloudVision operations or an open SONiC stack — design the fabric against the specific platforms and speeds (for example 400G/800G-class) the project needs.
Build your Dell bill of materials.
Send us the requirement, the project, or an existing quote to beat. We come back with a validated, TAA-compliant Dell configuration and a real price, often below list.
[email protected] · Chicago, IL