• Stack of four silver arista dcs-7280sr3am-48yc8-f 7280r3 48-port 25g network switches with ports and ventilation grilles
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Arista

Arista DCS-7280SR3AM-48YC8-F | 7280R3 48-Port 25G Switch, MACsec, 8x 100G QSFP28

DCS-7280SR3AM-48YC8-F

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Description

The Arista DCS-7280SR3AM-48YC8-F is a high-performance 1RU data center switch router featuring 48x 25GbE SFP28 ports and 8x 100GbE QSFP28 uplinks with wire-speed MACsec encryption. Built on the Jericho2 architecture with 4GB deep buffer and VOQ design, it delivers 2.4 Tbps switching capacity for lossless forwarding in cloud, leaf-spine, and storage networking environments. Front-to-rear airflow and dual AC power supplies ensure optimal data center deployment.

Features

Arista EOS (Extensible Operating System) with modular multi-process architecture
- Wire-speed IEEE 802.1AE MACsec encryption with AES-256-GCM on all ports
- 4GB deep buffer with Virtual Output Queuing (VOQ) for lossless forwarding
- Broadcom Jericho2 ASIC architecture with advanced traffic management
- FlexRoute engine supporting internet-scale routing (up to 1.45M IPv4 routes)
- VXLAN routing and bridging with EVPN control plane (RFC 7432, RFC 9136)
- Layer 2: VLAN (4096), MLAG, LACP, STP/RSTP/MSTP, LLDP
- Layer 3: BGP, OSPF, IS-IS, static routing, ECMP, VRF, multicast (PIM, IGMP)
- Algorithmic ACLs for scalable policy-based forwarding and telemetry
- Hardware-accelerated sFlow for line-rate traffic sampling and visibility
- Latency Analyzer (LANZ) for real-time congestion and microburst detection
- Precision Time Protocol (IEEE 1588 PTPv2) and Synchronous Ethernet
- Advanced Event Management (AEM) for event-driven automation
- Zero Touch Provisioning (ZTP) and CloudVision integration
- Dual hot-swappable redundant power supplies and fan modules
- Open APIs: eAPI (JSON-RPC), REST, OpenConfig, gNMI, gNOI

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

48x 25GbE SFP28 ports (1G/10G/25G support)
- 8x 100GbE QSFP28 uplinks (40G/100G, breakout to 4x10G or 4x25G)
- Switching Capacity: 2.4 Tbps wire-speed
- Forwarding Rate: 1 Bpps
- Packet Buffer: 4 GB deep buffer with Virtual Output Queuing (VOQ)
- Latency: From 3.8 microseconds
- MAC Address Table: Up to 384K addresses
- IPv4 Unicast Routes: Up to 1.45M (L3 profile), 800K (Balanced profile)
- System Memory: Up to 32GB DRAM, 8GB Flash
- Management: CLI, Arista EOS, eAPI, SNMP, NetConf, REST API
- Security: Line-rate IEEE 802.1AE MACsec AES-256-GCM encryption on all ports
- Power Supply: Dual hot-swappable 500W AC PSUs (front-to-rear airflow)
- Form Factor: 1RU rackmount
- Operating Temperature: 0°C to 40°C
- Dimensions: 1.75" H x 17.4" W x 20.7" D
- Weight: Approximately 10.5 kg

FAQs

Q: What encryption capabilities does the DCS-7280SR3AM-48YC8-F provide?
A: This switch features wire-speed IEEE 802.1AE MACsec encryption with AES-256-GCM across all 48x 25GbE and 8x 100GbE ports, providing secure point-to-point link-layer encryption without performance impact—ideal for securing data center interconnects and sensitive traffic flows.

Q: What are the typical deployment scenarios for the 7280SR3AM-48YC8-F?
A: This switch excels as a high-performance leaf switch in 25G/100G data center fabrics, secure routing edge platform, storage network switch with deep buffers, and VXLAN EVPN gateway requiring encryption. The deep buffer VOQ architecture ensures lossless forwarding under microburst and incast conditions.

Q: Can the QSFP28 ports support breakout configurations?
A: Yes, the 8x 100GbE QSFP28 uplinks support flexible breakout to 4x10G or 4x25G per port, enabling up to 80 logical interfaces. This allows mixed-speed fabric connectivity and smooth migration from 40G to 100G spine architectures.

Q: What is the airflow direction of the -F variant?
A: The -F suffix indicates front-to-rear (port-side intake to exhaust) airflow, designed for standard data center hot aisle/cold aisle configurations where cool air is drawn from the front and exhausted toward the rear hot aisle.

Q: Is this switch compatible with CloudVision management?
A: Yes, the DCS-7280SR3AM-48YC8-F runs Arista EOS and fully supports CloudVision for centralized network-wide provisioning, telemetry streaming, workflow automation, Zero Touch Provisioning (ZTP), and real-time network analytics across single or multi-site deployments.

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