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The Arista DCS-7050SX3-48YC8-R is a high-density, ultra-low-latency 1RU switch built on Arista’s 7050X3 architecture. It’s optimized for modern leaf roles in cloud-scale data centers, high-frequency trading environments, and large virtualization clusters that require predictable performance and flexible 25G/100G connectivity.
The “-R” suffix denotes rear-to-front airflow, making this model ideal for data centers, labs, and mixed-equipment racks that standardize on reverse thermal design.
Powered by a third-generation Broadcom Trident-based ASIC, the DCS-7050SX3-48YC8-R delivers up to 4.0 Tbps of non-blocking switching capacity and a forwarding rate of approximately 1 billion packets per second (1 Bpps). This architecture provides consistent performance even under heavy east-west traffic, ensuring deterministic behavior for mission-critical applications and large-scale virtualized workloads.
Latency-sensitive networks such as financial trading platforms, real-time analytics systems, and performance-critical storage fabrics demand predictable behavior at every hop. The 7050SX3-48YC8-R offers sub-microsecond latency, typically around 800 nanoseconds, with low jitter. This makes it particularly well suited for environments where microbursts and transient congestion must be managed without compromising application performance.
This switch provides a balanced mix of high-density server ports and flexible uplink capacity:
This layout makes it easy to support a wide mix of legacy 10G servers and modern 25G infrastructure while scaling uplink capacity as fabrics grow.
The DCS-7050SX3-48YC8-R supports a broad ecosystem of standards-based optics and cables so you can design around cost, distance, and power budgets:
That flexibility allows you to standardize on Arista or third-party optics while maintaining full interoperability across your leaf-spine fabric.
The 7050SX3-48YC8-R is designed as a high-performance leaf switch for spine-leaf and cloud-scale architectures. It supports:
These capabilities make it easy to build scalable, multi-tenant data centers with clean separation between customer, application, or environment tiers.
Operational visibility is central to Arista’s design philosophy. The DCS-7050SX3-48YC8-R includes a rich telemetry stack:
These tools help you identify congestion, degraded links, or abnormal flows before they escalate into service-impacting incidents.
Running on Arista EOS®, the DCS-7050SX3-48YC8-R is built for automation-centric operations:
EOS’s single-binary image and stateful architecture simplify upgrades, rollback, and large-scale automation across hundreds or thousands of switches.
The “-R” airflow configuration provides rear-to-front (reverse) cooling, ideal for:
The switch also includes variable-speed fans and redundant, hot-swappable power supplies to balance efficiency with uptime requirements.
The Arista DCS-7050SX3-48YC8-R aligns with modern environmental and safety standards, including RoHS and WEEE. Its energy-efficient silicon and compact 1RU form factor contribute to lower power consumption per gigabit and reduced data center footprint.
Security is integrated at multiple layers of the platform:
Combined with VXLAN and EVPN, these features help enforce scalable multi-tenant isolation and secure segmentation across large fabrics.
The DCS-7050SX3-48YC8-R is versatile enough to support a wide range of real-world deployments:
Arista platforms like the 7050SX3-48YC8-R are designed for long operational lifecycles, with high MTBF ratings and consistent EOS release cadence. This stability helps operators standardize on a proven hardware and software stack while adopting new features such as intent-based networking, AI-driven operations, and advanced telemetry without hardware churn.
When compared to previous-generation Arista and competing data center switches, the DCS-7050SX3-48YC8-R provides a compelling blend of performance and operability:
If you’re evaluating the Arista DCS-7050SX3-48YC8-R, the following models offer closely related capabilities with different airflow directions, uplink densities, or performance profiles:
Together, these switches form a practical comparison set for architects designing 25G/100G leaf-spine fabrics, storage clusters, or mixed enterprise/data center environments.
To explore the broader Arista 7050X/7050X3 portfolio and understand how the DCS-7050SX3-48YC8-R fits into a complete design, start with this overview:
Arista 7050SX3 Switches: Your Go-To Guide & Battle Card Breakdown
The Arista DCS-7050SX3-48YC8-R combines dense 25G access, flexible 100G uplinks, advanced telemetry, and automation-friendly EOS in a compact 1RU platform. Its reverse-airflow design makes it particularly attractive for data centers and labs that standardize on rear-to-front cooling. Whether you’re building a low-latency trading fabric, scaling out cloud infrastructure, or modernizing an enterprise data center, this switch delivers the performance, visibility, and flexibility required for next-generation network designs.
Related Arista 7050X Series model: DCS-7050SX3-48C8-F.
The DCS-7050SX3-48YC8-R switch offers 48 x 25G SFP28 ports and 8 x 100G QSFP28 uplinks, providing flexible and high-speed connectivity options.
The DCS-7050SX3-48YC8-R operates on Arista’s Extensible Operating System (EOS), which provides advanced features for automation, programmability, and network management.
Yes, the DCS-7050SX3-48YC8-R supports Virtual Extensible LAN (VXLAN) and Ethernet VPN (EVPN), enabling efficient network virtualization and segmentation.
The DCS-7050SX3-48YC8-R is designed for low power consumption and efficient cooling, making it an energy-efficient choice for data center deployments.
The DCS-7050SX3-48YC8-R supports a comprehensive range of Layer 3 routing protocols, including BGP, OSPF, and ISIS, ensuring efficient and flexible network traffic management.
