Arista 7280R Series 48-Ports 10GbE SFP+ Layer 3 Rack-mountable Managed Rear-to-front Airflow Network Switch with 6-Ports QSFP – DCS-7280SR-48C6-R

Arista 7280R 48-Port 10GbE SFP+ Layer 3 Managed Switch with 6 QSFP Uplinks — Rear-to-Front Airflow

The Arista DCS-7280SR-48C6-R is a 48-port 10GbE SFP+ Layer 3 managed network switch with 6 QSFP uplink ports and rear-to-front (port-side intake) airflow, part of Arista”s 7280R series built on the Jericho merchant silicon. Designed for high-density data center spine and leaf deployments, it delivers wire-rate L3 forwarding, deep buffer architecture, and Arista EOS for consistent, programmable network operations.

Key Features

• 48x 10GbE SFP+ ports for high-density server and storage connectivity
• 6x QSFP uplinks for 40GbE or 100GbE spine connectivity
• Rear-to-front airflow for hot-aisle/cold-aisle data center cooling alignment
• Arista EOS — consistent, programmable network operating system
• Deep buffer architecture for congestion management in mixed workload environments
• Layer 3 — full routing with BGP, OSPF, ISIS, and VXLAN support

Product Specifications

• Part Number: DCS-7280SR-48C6-R
• Manufacturer: Arista
• OEM Status: OEM
• Model: 7280SR
• Ports: 48x 10GbE SFP+ + 6x QSFP
• Switching Layer: Layer 3
• Airflow: Rear-to-Front (R)
• Form Factor: 2U Rack-mountable

Switch & Port Specifications

• SFP+ Ports: 48x 10GBASE-X (10GbE)
• QSFP Ports: 6x (40GbE or 100GbE)
• Switching Capacity: Up to 1.28 Tbps
• Forwarding Rate: Wire-rate L3
• Buffer: Deep buffer (Jericho ASIC)
• Airflow: Rear-to-Front (port-side intake)

Network & Protocol Specifications

• Routing: BGP, OSPF, ISIS, RIP
• Overlay: VXLAN, MPLS
• Management: Arista EOS, OpenConfig, gNMI, NETCONF
• VLAN: IEEE 802.1Q
• QoS: IEEE 802.1p, DSCP
• Multicast: PIM-SM, PIM-SSM, IGMP

Use Cases

• Data center leaf switch in spine-leaf architecture with 10GbE server connectivity
• High-density ToR (Top-of-Rack) switching for server and storage connectivity
• Deep buffer switching for mixed workloads requiring congestion management
• VXLAN overlay fabric deployment with Arista EOS

Compatibility

• Compatible with standard 10GBASE-SR/LR/ER SFP+ transceivers and DAC/AOC cables
• QSFP ports support 40GbE QSFP+ and 100GbE QSFP28 transceivers
• Rear-to-front airflow — match with rear-to-front fan/PSU modules
• Managed via Arista EOS CLI, REST API, OpenConfig

Frequently Asked Questions

What does rear-to-front airflow (-R) mean on Arista switches?

Rear-to-front (R) airflow means air enters from the rear (non-port side) and exhausts from the front (port side) — designed for cold-aisle containment where switch ports face the cold aisle.

What QSFP speeds are supported?

The 6 QSFP ports on the DCS-7280SR-48C6-R support 40GbE (QSFP+) and can support 100GbE (QSFP28) depending on transceiver — verify with Arista”s transceiver compatibility matrix.

What is Arista EOS?

Arista EOS (Extensible Operating System) is a single, consistent network OS running across all Arista switches — providing CLI, REST API, OpenConfig, and gNMI management with full state streaming for network automation.

The Arista DCS-7280SR-48C6-R delivers 48-port 10GbE SFP+ high-density switching with 6 QSFP uplinks and rear-to-front airflow — a purpose-built data center leaf switch with deep buffer architecture and Arista EOS programmability. Order today and build a high-performance, automated data center fabric.