DCS-7050SX3-48YC8-F Arista 48-Port 25GB SFP28 8x 100GB QSFP F-B Airflow 8GB Flash Switch

Overview of ARISTA 48x25Gb SFP28 & 8x100Gb QSFP Switch 

The ARISTA DCS-7050SX3-48YC8-F is a high-performance data center switch designed for scalability, efficiency, and advanced networking needs. With front-to-back airflow and robust hardware, it ensures reliable operation in demanding environments.

General Information

• Brand: Arista 
• Part Number: DCS-7050SX3-48YC8-F
• Product Type: Networking Switch

Technical Specifications

• 48x 25 Gigabit Ethernet SFP28 access ports
• 8x 100 Gigabit Ethernet QSFP uplink ports
• Quad-core x86 CPU for optimized performance
• Switching capacity of 4 Tbps
• Forwarding rate of 1 Bpps
• Ultra-low latency of 800ns

Management Interfaces

• 1x 1Gb RJ45 management port
• 1x RS-232 RJ45 console port
• 1x USB Type-A port

Performance Specifications

Memory & Buffer

• 32MB packet buffer
• 8GB DRAM
• 8GB Flash storage

MAC & VLAN Support

• MAC address table size: 288,000 entries
• Supports up to 4096 VLAN IDs

Cooling & Airflow

Fan Modules

• 2x FAN-7000H-F modules included
• Front-to-back airflow design

Power Supply

Included Units

• 2x PWR-511-AC-RED AC power supplies
• Redundant design for reliability

Software & Operating System

Switch OS

• Runs ARISTA EOS (Extensible Operating System)
• Advanced automation and programmability support

The Arista DCS-7050SX3-48YC8-F 48-Port 25Gbe Switch

The Arista DCS-7050SX3-48YC8-F 48-Port 25GB SFP28 8x 100GB QSFP F-B Airflow 8GB Flash USB Type A 32MB Packet Buffer Networking Switch is engineered for high-performance leaf-spine architectures, enterprise core deployments, and high-throughput aggregation layers. Built on the advanced 7050SX3 Series architecture from Arista Networks, this switch delivers wire-speed Layer 2 and Layer 3 services with ultra-low latency and deep programmability for modern data center fabrics. Designed to meet the bandwidth demands of virtualization, cloud computing, big data analytics, and hyper-converged infrastructure, the DCS-7050SX3-48YC8-F ensures consistent performance and operational efficiency in dense rack environments.

High-Performance 25Gbe and 100Gbe Port

The Arista DCS-7050SX3-48YC8-F networking switch provides 48 SFP28 ports supporting 10GbE and 25GbE connectivity, along with 8 QSFP ports capable of 40GbE or 100GbE uplinks. This versatile port configuration allows seamless integration into existing 10G infrastructures while enabling straightforward migration to 25G server access and 100G spine connectivity. The high port density makes it ideal for top-of-rack deployments in large-scale data centers and enterprise environments.

48 x 25GbE SFP28 Downlink Ports

The forty-eight SFP28 interfaces support both 10GbE and 25GbE transceivers, offering flexible deployment scenarios. Organizations can gradually transition from 10G to 25G without replacing the entire switching infrastructure. Each port operates at line rate, ensuring predictable throughput for east-west traffic flows commonly found in virtualized and containerized environments. The 25GbE standard provides a significant performance improvement over 10GbE while maintaining cost-effectiveness and power efficiency.

8 x 100GbE QSFP Uplink Ports

The eight QSFP ports can operate at 40GbE or 100GbE, providing high-speed uplinks to spine switches or core aggregation layers. These uplinks ensure that traffic from densely populated server racks is efficiently forwarded to the broader network fabric. With 100GbE uplink capability, the switch eliminates bottlenecks in spine-leaf architectures and supports scalable data center expansion.

Front-to-Back Airflow

The F-B airflow design of the DCS-7050SX3-48YC8-F ensures front-to-back cooling, making it compatible with hot aisle and cold aisle containment strategies in modern data centers. Proper airflow alignment is essential for maintaining consistent operating temperatures and reducing cooling costs. The switch’s airflow pattern supports efficient heat dissipation and enhances long-term hardware reliability.

Data Center Rack Compatibility

Designed for high-density rack environments, this networking switch aligns with standardized airflow requirements found in enterprise and hyperscale data centers. The front-to-back airflow configuration enables seamless installation alongside other networking and compute devices that follow similar cooling patterns.

Advanced Packet Buffering and Low-Latency Architecture

The 32MB packet buffer integrated into the Arista DCS-7050SX3-48YC8-F enhances traffic handling capabilities during microbursts and congestion scenarios. This feature ensures minimal packet loss and stable performance for latency-sensitive applications such as real-time analytics, financial trading systems, and high-performance computing clusters.

8GB Flash Storage and Management Capabilities

The integrated 8GB flash memory allows for robust operating system storage, configuration files, logging, and software updates. The presence of a USB Type-A port enhances flexibility for local file transfers, system recovery, and configuration backups. These features contribute to simplified management and operational resilience.

Enhanced System Logging and Monitoring

With ample flash storage, administrators can maintain detailed logs and historical performance data. This capability supports proactive troubleshooting and compliance auditing, ensuring that network operations remain transparent and well-documented.

Arista EOS Software Integration

The DCS-7050SX3-48YC8-F runs on Arista EOS, a highly reliable and extensible network operating system. EOS is built on a Linux foundation and features a modular architecture that separates protocol processing from the state database. This design increases fault isolation and enhances system uptime.

High Availability Features

EOS offers stateful fault containment, in-service software upgrades, and comprehensive monitoring capabilities. These features reduce downtime and ensure continuous network operation, which is critical in mission-critical enterprise and cloud deployments.

Scalable Leaf-Spine Architecture

The 48 x 25GbE access ports and 8 x 100GbE uplinks position the Arista DCS-7050SX3-48YC8-F as a powerful leaf switch in scalable spine-leaf topologies. Its high throughput capacity supports rapid east-west data movement between servers while maintaining efficient north-south connectivity to core networks.

Optimized Power Consumption

The advanced hardware design minimizes power draw without sacrificing performance. This balance is essential for enterprises seeking to reduce total cost of ownership while scaling their networking infrastructure.

Comprehensive Layer 2 and Layer 3 Capabilities

The Arista DCS-7050SX3-48YC8-F supports a wide range of Layer 2 switching features and Layer 3 routing protocols. This versatility allows it to function as an access, aggregation, or even core device in certain enterprise environments.

VXLAN and Network Virtualization

Modern data centers increasingly rely on overlay technologies such as VXLAN to enable scalable multi-tenant architectures. The DCS-7050SX3-48YC8-F provides hardware-accelerated VXLAN capabilities, facilitating network virtualization at scale.

Hot-Swappable Components

Hot-swappable fans and power supplies enable maintenance without disrupting network operations. This capability is vital for data centers that require continuous availability.