• Gray metal arista dcs-7280r4k-32de-f server switch with multiple ports and ventilation grilles back side view
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Arista

Arista DCS-7280R4K-32DE-F | 7280R4 32-Port 800GbE Switch, 25.6Tbps, Layer 3

DCS-7280R4K-32DE-F

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Description

The Arista DCS-7280R4K-32DE-F is a high-performance 800GbE data center switch router delivering 25.6Tbps of line-rate throughput across 32 QSFP-DD ports. Engineered for AI/ML spine deployments, cloud data centers, and service provider networks, it features Virtual Output Queueing with dynamic deep buffers for lossless forwarding, enhanced encryption with TunnelSec supporting MACsec, IPsec and VXLANsec at wire speed, and large routing table capacity exceeding 5M IPv4 routes. The platform supports flexible speeds from 25GbE to 800GbE per port and includes front-to-rear airflow with configurable power supplies.

Features

Virtual Output Queueing (VOQ) architecture eliminates head-of-line blocking
- Dynamic deep packet buffering handles incast traffic and speed mismatches
- FlexRoute engine for internet-scale routing with over 5M IPv4 routes
- Wire-speed Layer 2 and Layer 3 forwarding on all ports simultaneously
- Algorithmic ACLs supporting 400K+ rules for flexible policy control
- TunnelSec line-rate encryption: MACsec, IPsec, VXLANsec (25G-800G)
- Advanced EVPN-VXLAN support for network virtualization and multi-tenancy
- Comprehensive routing protocols: BGP, OSPF, IS-IS, MPLS, Segment Routing
- High-precision timing with IEEE 1588v2 PTP and SyncE
- Arista EOS with stateful process separation and hitless upgrades
- Advanced telemetry: sFlow, NetFlow, LANZ, streaming telemetry
- Zero Touch Provisioning (ZTP) and CloudVision integration
- Hot-swappable redundant power supplies and fan modules
- Support for 400G/800G DWDM ZR/ZR+ coherent optics
- Configurable airflow direction with front-to-rear louver kit

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

32x 800GbE QSFP-DD ports (supports 25G/40G/50G/100G/200G/400G/800G speeds)
- Switching capacity: 25.6Tbps (51.2Tbps full duplex)
- Routing capacity: Over 5M IPv4 routes (7280R4K large route model)
- Virtual Output Queueing (VOQ) with dynamic deep packet buffering
- Wire-speed TunnelSec encryption (MACsec, IPsec, VXLANsec) with AES-256-GCM
- CPU: High-performance 8-core x86 processor
- Memory: 64GB DRAM, 480GB NVMe SSD storage
- Front-to-rear airflow with configurable fans and power supplies
- Management: Arista EOS with CLI, REST API, Python, Linux shell access
- Form factor: Fixed configuration switch router
- Power: Redundant hot-swappable power supplies (3200W capable)
- Standards compliance: IEEE 802.1AE, RFC 4303, Layer 2/3 protocols

FAQs

Q: What deployment scenarios is the DCS-7280R4K-32DE-F designed for?
A: This switch is purpose-built for AI/ML spine networks, cloud data center aggregation, high-performance compute clusters, data center interconnect (DCI), IP peering, and service provider edge deployments requiring 800GbE density with deep buffering and large routing tables.

Q: Does this model support encryption and security features?
A: Yes, the 7280R4K series includes TunnelSec technology providing wire-speed encryption across all ports simultaneously without performance penalty. It supports IEEE 802.1AE MACsec, IPsec (RFC 4303), and VXLANsec using AES-256-GCM cipher, enabling multi-layer security for Layer 2, Layer 3, and overlay networks.

Q: What transceiver types are supported on the QSFP-DD ports?
A: The 32 QSFP-DD ports support a wide range of pluggable optics including 800G, 400G, 200G, 100G, 50G, 40G, and 25G transceivers. The platform is optimized for high-power 400G and 800G ZR/ZR+ coherent DWDM optics with reach up to 120km, as well as standard SR/LR optics and DAC/AOC cables.

Q: What is the difference between 7280R4 and 7280R4K models?
A: The 7280R4K models include enhanced routing scalability with support for over 5 million IPv4 routes (compared to standard models), making them ideal for internet peering, carrier edge, and large-scale EVPN deployments. The 'K' designation indicates large routing table capacity and enhanced encryption capabilities.

Q: What operating system and automation capabilities does this switch include?
A: The switch runs Arista EOS (Extensible Operating System), a single 64-bit Linux-based network OS with stateful fault containment, full access to Linux shell and tools, and support for automation via REST APIs, Python, Ansible, and programmability through bash and C++. EOS provides consistent features across the entire Arista portfolio.

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