Arista DCS-7050SX3-48YC8-F — Engineered for Dense, High-Performance Edge Deployments
The Arista DCS-7050SX3-48YC8-F is purpose-built to deliver ultra-low latency and high throughput in a compact 1RU form factor. It belongs to Arista’s 7050X3 series, optimized for high-performance leaf deployments in cloud-scale data centers, hyperscale infrastructure, and high-frequency trading environments.
With a dense port layout and wire-speed capabilities, the DCS-7050SX3-48YC8-F is engineered to support rapid east-west traffic, workload mobility, and bandwidth-intensive applications with minimal jitter.
Key Features at a Glance
- 48 x 10G/25G SFP28 ports supporting optics and direct-attach cables (DACs)
- 8 x 40G/100G QSFP28 ports with breakout capability
- 4.0 Tbps non-blocking throughput with 1 billion packets per second (1 Bpps) forwarding rate
- Sub-microsecond latency, typically ~800 nanoseconds with minimal jitter
- Front-to-rear airflow design (“-F” suffix) ideal for hot/cold aisle containment
- Redundant, hot-swappable power supplies and variable-speed fans
- Full L2/L3 feature set including VXLAN and EVPN for scalable overlays
- Telemetry support includes LANZ, sFlow, Arista Event Monitor (AEM), and streaming telemetry
- Runs on Arista’s Extensible Operating System (EOS) with automation and open APIs
- Centralized orchestration via CloudVision® platform
High-Throughput Architecture
Powered by a third-generation Broadcom Trident chipset, the Arista DCS-7050SX3-48YC8-F delivers 4.0 Tbps non-blocking throughput and forwards up to 1 billion packets per second. This architecture ensures consistent high I/O performance under full load, supporting demanding applications with low latency and minimal packet loss.
Ultra-Low Latency Switching and Jitter Performance
Latency is a critical factor in high-performance environments like financial trading, real-time analytics, and scientific simulations. The DCS-7050SX3-48YC8-F provides consistent sub-microsecond latency, typically around 800 nanoseconds, with low jitter. This ensures predictable and reliable performance for latency-sensitive applications where every nanosecond counts.
Port Density and Flexible Configuration
The Arista DCS-7050SX3-48YC8-F provides 48 SFP28 ports compatible with 10GBASE and 25GBASE optics and direct-attach cables (DACs), paired with 8 QSFP28 ports supporting native 40GBASE or 100GBASE speeds. QSFP28 interfaces also support breakout configurations into 4x25G or 4x10G links, enabling granular bandwidth allocation.
This flexible, mixed-speed architecture facilitates scalable leaf and aggregation deployments, allowing operators to implement phased migration strategies from 10G to 25G and 100G networks without disruption.
Optics, Cables, and Interoperability
The DCS-7050SX3-48YC8-F supports a broad ecosystem of standards-based optics and cables:
- SFP28: 10GBASE-SR/LR, 25GBASE-SR/LR, DACs, AOCs
- QSFP28: 100GBASE-SR4/LR4/ER4, 40GBASE-SR4/LR4, breakout cables (4x25G or 4x10G)
This ensures smooth integration into existing infrastructure and supports diverse deployment scenarios.
Modern Fabric Ready with VXLAN and EVPN Support
Designed as a high-performance leaf switch in spine-leaf architectures, the Arista DCS-7050SX3-48YC8-F enables scalable Layer 2 and Layer 3 deployments with robust support for overlay networks and advanced routing. VXLAN provides virtualized Layer 2 overlays, facilitating large-scale network virtualization. EVPN delivers scalable, multi-tenant segmentation with efficient control-plane learning and MAC mobility. The switch also supports up to 128-way Equal-Cost Multi-Path (ECMP) routing, optimizing path selection and load balancing across the fabric for maximum throughput and resilience.
Key features include:
- VXLAN for virtualized Layer 2 overlays supporting cloud-scale network virtualization
- EVPN for scalable, multi-tenant segmentation and advanced overlay control-plane capabilities
- Up to 128-way ECMP routing for optimal path distribution and traffic engineering
Telemetry, Monitoring, and Real-Time Insight
Operational visibility is a core design element of the DCS-7050SX3-48YC8-F. It includes support for Arista’s advanced telemetry stack:
- LANZ: Microburst detection
- sFlow: Real-time traffic sampling
- AEM (Arista Event Monitor): Rule-based alerting
- Streaming Telemetry: Integration with analytics platforms
These tools provide the data needed to troubleshoot issues before they affect applications.
EOS Automation and Extensibility
Running on Arista EOS®, the DCS-7050SX3-48YC8-F benefits from a fully programmable and modular operating system. EOS enables automation at every layer of the stack:
- Native support for Python and Bash scripting
- JSON-based APIs for northbound integration
- CloudVision® for centralized automation and state streaming
- OpenConfig and gRPC for modern network management
EOS’s consistent state management architecture ensures network changes are predictable and recoverable.
Front-to-Rear Airflow and Environmental Efficiency
The “-F” in the model denotes front-to-rear airflow, making it ideal for hot/cold aisle containment in traditional data center layouts. The Arista DCS-7050SX3-48YC8-F includes:
- Redundant, hot-swappable power supplies
- Variable-speed fans for cooling efficiency
- Energy-efficient silicon delivering high performance per watt
These features help reduce operational costs while maximizing rack density.
Compliance and Sustainability
Designed for environmental responsibility, the DCS-7050SX3-48YC8-F complies with RoHS and WEEE regulations, and aligns with ENERGY STAR® power efficiency goals. Its hardware design minimizes toxic materials and supports recycling initiatives.
Security Features for Multi-Tenant Environments
Security is integrated in both hardware and software:
- Secure boot and digitally signed images
- Role-Based Access Control (RBAC)
- TACACS+/RADIUS/LDAP authentication
- Access Control Lists (ACLs)
Combined with VXLAN and EVPN, these features enforce scalable tenant isolation and segmentation.
Deployment Scenarios and Industry Applications
The Arista DCS-7050SX3-48YC8-F is versatile and well-suited to a variety of environments:
- Hyperscale Cloud: Leaf switch with high east-west traffic support
- Financial Services: Low-latency architecture ideal for trading floors
- Telecom: Dense port counts simplify access aggregation
- Research Labs: High throughput for data-heavy simulations
- Enterprise DCs: Seamless migration path from 10G to 25G and 100G
Lifecycle, Reliability, and Future-Proofing
Arista’s hardware lifecycle strategy includes long-term support for platforms like the DCS-7050SX3-48YC8-F. With MTBF ratings in the millions of hours and robust firmware release schedules, this switch is a long-term investment in infrastructure stability.
Future enhancements to EOS and CloudVision ensure the platform stays up to date with evolving network paradigms like intent-based networking and AI-driven operations.
Competitive Comparison
Compared to previous-generation Arista switches (e.g., 7050SX2), the SX3 offers higher port density, double the throughput, and enhanced telemetry support. When placed side-by-side with alternatives like the Cisco Nexus 9300 series or Juniper QFX5120:
- Lower Latency: Arista delivers more consistent microsecond-level latency
- Software Flexibility: EOS offers deeper programmability than many competitors
- Power Efficiency: Lower watts-per-gigabit performance in high-density configurations
These factors give the Arista DCS-7050SX3-48YC8-F a clear edge in modern data center deployments.
Similar Arista 7050 & 7060 Models to Consider
If you’re evaluating the
Arista DCS-7050SX3-48YC8-F, the following models offer comparable capabilities across 25G, 100G, and mixed-density deployments. These switches provide alternative port layouts, airflow options, and throughput levels depending on your specific data center architecture.
Together, these models form a practical comparison set for engineers designing 25G/100G leaf layers, spine uplinks, or mixed-workload data center fabrics.
Related 7050SX3 Resources
Explore this guide to compare models, evaluate alternatives, and understand the full 7050SX3 portfolio:
Arista 7050SX3 Switches: Your Go-To Guide & Battle Card Breakdown
The Definitive Switch for Agile, High-Density Network Fabrics
The Arista DCS-7050SX3-48YC8-F is a compact, high-density switch that bridges today’s data center demands with tomorrow’s scalability needs. Its combination of performance, telemetry, automation, and hardware efficiency makes it a powerful asset for operators building modern, agile network fabrics. Whether deployed in high-frequency trading, large-scale virtualization environments, or distributed storage fabrics, this switch delivers the control, insight, and speed needed at the edge of the network core.
