• Silver-colored Arista DCS-7280R4K-64QC-10PE-F rack-mountable network switch with black ports and ventilation slots
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Arista

Arista DCS-7280R4K-64QC-10PE-F | 7280R4 64-Port 100G + 10-Port 800G Switch, 25.6Tbps

DCS-7280R4K-64QC-10PE-F

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Description

The Arista DCS-7280R4K-64QC-10PE-F is a high-performance data center switch router delivering 25.6Tbps of non-blocking bandwidth with 64x100GbE QSFP ports and 10x800GbE OSFP ports. Purpose-built for AI/ML clusters, cloud data centers, and high-speed storage networks, this 7th generation 7280R4K model features enhanced encryption with line-rate TunnelSec AES-256-GCM support, scalable routing tables supporting up to 5M routes, and deep virtual output queue buffers up to 32GB for lossless performance. Front-to-rear airflow design with dual AC power supplies ensures optimal cooling in demanding spine and leaf deployments.

Features

Wire-speed Layer 2 and Layer 3 forwarding across all ports
- 7th generation Arista 7280R4 Series architecture with FlexRoute engine
- Support for MLAG (Multi-Chassis Link Aggregation) and up to 512-way ECMP
- EVPN-VXLAN overlay networking for network virtualization
- Advanced Algorithmic ACLs scaling to hundreds of thousands of entries
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for network-wide orchestration and workflow automation
- Stateful fault containment and in-service software upgrades
- Comprehensive support for MPLS and Segment Routing
- High-rate sFlow sampling on all interfaces at full forwarding capacity
- Support for 800G ZR Line System with AMP-ZR optical amplifiers
- DWDM coherent optics support for long-reach connectivity up to 120km
- Advanced traffic scheduling with weighted fair queueing and hybrid schemes
- Open API support with eAPI for automation and integration
- Standards-based protocols including BGP, OSPF, IS-IS, MPLS, and VXLAN

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

64x 100GbE QSFP ports
- 10x 800GbE OSFP ports
- Total throughput: 25.6 Tbps non-blocking
- FlexRoute engine with support for up to 5M IP routes
- Deep packet buffers up to 32GB with Virtual Output Queueing (VOQ)
- Line-rate TunnelSec encryption: MACsec, IPsec, VXLANsec (AES-256-GCM)
- Supports 400G and 800G ZR/ZR+ coherent DWDM modules
- Front-to-rear airflow (-F)
- Dual AC power supplies (2x AC)
- Arista EOS operating system with comprehensive automation and telemetry
- 1RU form factor
- Supports PTP IEEE 1588v2 and SyncE for precision timing
- Advanced sFlow and streaming telemetry

FAQs

Q: What deployment scenarios is the DCS-7280R4K-64QC-10PE-F optimized for?
A: This switch is ideal for AI/ML cluster spine architectures, high-performance data center leaf deployments requiring mixed 100G and 800G connectivity, data center interconnect (DCI), IP storage networks, and service provider backbones demanding large routing scale and deep buffering.

Q: What encryption capabilities does the 7280R4K model provide?
A: The 7280R4K series supports line-rate TunnelSec encryption using AES-256-GCM on all ports at all speeds without performance penalty. It offers MACsec for Layer 2 point-to-point encryption, IPsec for Layer 3 encrypted tunnels, and VXLANsec for overlay network security, eliminating the need for external encryption appliances.

Q: How does the routing scale differ from standard 7280R4 models?
A: The 7280R4K variant includes enhanced routing scale supporting up to 5 million IP routes with the FlexRoute engine and EOS NetDB, compared to Internet-scale routing in standard models. This makes it suitable for large-scale service provider and content delivery network deployments.

Q: Can this switch support both 100G and 800G optics simultaneously?
A: Yes, the DCS-7280R4K-64QC-10PE-F provides 64 dedicated 100GbE QSFP ports and 10 dedicated 800GbE OSFP ports, allowing simultaneous operation of both interface speeds. It also supports multi-speed operation including 25G, 50G, 100G, 200G, 400G, and 800G with appropriate optics.

Q: What makes the virtual output queueing architecture beneficial?
A: The VOQ architecture with up to 32GB of deep buffers eliminates head-of-line blocking and virtually eliminates packet drops in congested scenarios. This is critical for AI training workloads, IP storage, and data analytics applications requiring lossless, low-latency performance with mixed traffic patterns.

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