• Gray metal arista dcs-7280r4k-32pe-f back with 32 ports ventilation grilles 800g switch 2ru tunnelsec encryption
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Arista

Arista DCS-7280R4K-32PE-F | 7280R4 32-Port 800G Switch, TunnelSec Encryption, 2RU

DCS-7280R4K-32PE-F

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Description

The Arista DCS-7280R4K-32PE-F is a high-performance 2RU data center switch router delivering 25.6 Tbps of non-blocking throughput with 32x 800GbE OSFP ports and 8x 25GbE SFP+ interfaces. Designed for AI/ML, high-performance storage, content delivery networks, and service provider backbones, it features large-scale routing up to 5M IP routes, line-rate TunnelSec AES-256-GCM encryption across MACsec, IPsec, and VXLANsec, and dynamic deep buffers up to 32GB for lossless forwarding. Ideal for demanding cloud, spine, and data center interconnect deployments requiring Internet-scale routing and wire-speed security.

Features

Layer 2 and Layer 3 wire-speed switching and routing with hardware-based forwarding
- Virtual Output Queue (VOQ) architecture eliminating head-of-line blocking for lossless forwarding
- Dynamic deep buffer memory up to 32GB with intelligent congestion management
- FlexRoute scalable routing engine supporting Internet-scale BGP (5M+ IPv4, 1.6M+ IPv6 routes)
- Line-rate TunnelSec encryption: MACsec, IPsec, VXLANsec with AES-256-GCM at 800G speeds
- Algorithmic ACLs with 100K+ policy rules for flexible access control and telemetry
- EVPN/VXLAN overlay support for network virtualization and multi-tenancy
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 redundancy
- Equal Cost Multi-Path (ECMP) routing up to 512-way for large-scale leaf-spine fabrics
- IEEE 1588v2 Precision Time Protocol (PTP) and Synchronous Ethernet (SyncE) support
- Accelerated sFlow generating up to 1.6M pps for advanced telemetry and network visibility
- Inband Network Telemetry (INT) for per-flow monitoring of drops, latency, and congestion
- Latency Analyzer (LANZ) for microburst detection and congestion visibility
- Advanced Event Management (AEM) for automated workflows and event-driven actions
- Zero Touch Provisioning (ZTP) and CloudVision for centralized management and automation
- Stateful switchover and in-service software upgrades without data plane interruption
- Support for 400G/800G ZR/ZR+ coherent DWDM optics and Arista ZR Line System
- Redundant hot-swappable AC power supplies and fan modules with front-to-rear airflow
- Field-replaceable supervisor module for reduced MTTR on control-plane failures
- Arista EOS unified operating system with Linux shell access, Python, and REST API

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 OSFP ports supporting 800G/400G/200G/100G/50G/25G breakout configurations
- 8x 25GbE SFP+ management/out-of-band ports
- Throughput: 25.6 Tbps (51.2 Tbps full-duplex)
- Forwarding rate: 9.6 billion packets per second
- Latency: from 3.8 microseconds
- Packet buffer memory: up to 32GB dynamic deep buffers with VOQ architecture
- System memory: 64GB DRAM, Eight-Core x86 CPU
- FlexRoute engine supporting 5M+ IPv4 routes with large routing tables
- Line-rate TunnelSec hardware encryption on all 800G OSFP ports (AES-256-GCM)
- Support for MACsec (IEEE 802.1AE), IPsec (RFC 4303), VXLANsec encryption
- Algorithmic ACLs for 100K+ policy rules with hardware acceleration
- Airflow: front-to-rear, 2x redundant AC power supplies
- Form factor: 2RU rack-mount with field-replaceable supervisor module
- Management: Arista EOS, CLI, eAPI, REST, SNMP, ZTP/ZTR, CloudVision integration
- Dimensions: 17.4" W x 3.5" H x 22.6" D (442mm x 89mm x 574mm) inc. handles

FAQs

Q: What is the difference between the 7280R4 and 7280R4K models?
A: The 7280R4K variant adds large-scale routing support with 5M+ IP routes, line-rate TunnelSec hardware encryption on all ports supporting MACsec, IPsec, and VXLANsec, and expanded Algorithmic ACL capabilities. The base 7280R4 offers standard routing tables and no encryption hardware acceleration. Both share the same 25.6 Tbps throughput and 32x 800G OSFP port density.

Q: What transceiver types and speeds are supported on the OSFP ports?
A: The 32x OSFP ports support 800GbE, 400GbE, 200GbE, 100GbE, 50GbE, and 25GbE with breakout cables (up to 256x 25G interfaces total). The switch is optimized for high-power 400G/800G ZR and ZR+ coherent DWDM optics with reach up to 120km, enabling direct data center interconnect without external transponders. Standard SR8/DR8/2xFR4 optics are also supported.

Q: Is TunnelSec encryption license-based and what does it enable?
A: Yes, TunnelSec encryption requires an EOS software license to activate. It enables wire-speed, hardware-accelerated AES-256-GCM encryption at line rate on all 800G OSFP ports without performance penalty. TunnelSec supports MACsec for point-to-point link encryption, and IPsec/VXLANsec for encrypted tunnels across multiple hops, ideal for secure WAN and DCI deployments.

Q: What are typical use cases for the 7280R4K-32PE-F?
A: This switch is ideal for data center spine deployments requiring ultra-high bandwidth and lossless performance, AI/ML fabric backbones with 32GB deep buffers to handle incast traffic, Internet peering and service provider edge routing with 5M+ route scale, high-performance storage networks with sub-4us latency, content delivery network aggregation, and secure data center interconnect using 800G-ZR optics and TunnelSec encryption.

Q: Does the DCS-7280R4K-32PE-F support field serviceability?
A: Yes, the 2RU chassis features a field-replaceable supervisor module that can be swapped in minutes by a single engineer without disconnecting network cables or removing the chassis from the rack. The switch also supports redundant hot-swappable AC power supplies and fan modules for maximum uptime and reduced MTTR during control-plane maintenance.

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