• Gray and black Arista DCS-7280DR3-24 network switch with multiple QSFP-DD 400G ports and sleek rectangular design
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Arista

Arista DCS-7280DR3-24 | 7280R3 24-Port 400G Switch, 9.6 Tbps, QSFP-DD

DCS-7280DR3-24

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Description

The Arista DCS-7280DR3-24 is a high-performance data center switch router featuring 24 ports of 400GbE QSFP-DD connectivity with 9.6 Tbps switching capacity. Designed for large-scale data centers and cloud environments, it supports advanced Layer 3 routing, VXLAN, EVPN, and MPLS protocols. With deep packet buffering up to 16GB and sub-microsecond latency, this 1U platform delivers wire-speed performance for spine-leaf architectures, IP storage, and high-bandwidth applications.

Features

24x 400GbE QSFP-DD ports with flexible 4x100G breakout support
- 9.6 Tbps wire-speed switching capacity and 4 billion packets per second forwarding
- 16GB ultra-deep packet buffer with Virtual Output Queues (VOQ) to eliminate head-of-line blocking
- Arista FlexRoute Engine for full internet routing table support up to 1.4M routes
- Advanced Layer 2 and Layer 3 forwarding with wire-speed performance
- Comprehensive VXLAN support for next-generation data center virtualization
- EVPN support for Layer 2 and Layer 3 overlay networks (EVPN-VXLAN, EVPN-MPLS)
- MPLS and Segment Routing for carrier-grade service provider applications
- Algorithmic ACLs for flexible, high-scale access control and policy enforcement
- Latency Analyzer (LANZ) for microburst detection and congestion monitoring
- Inband Network Telemetry (INT) for per-flow visibility and latency tracking
- Advanced mirroring and TAP aggregation (DANZ) for traffic visibility
- Precision Timing Protocol (PTP) IEEE 1588 and Synchronous Ethernet (SyncE)
- Hot-swappable redundant power supplies and fan modules
- Over 94% efficient power supplies
- Configurable front-to-rear or rear-to-front airflow
- Zero Touch Provisioning (ZTP) for automated deployment
- Arista CloudVision integration for centralized management and automation
- Programmable pipeline with sFlow, IPFIX, and eAPI support
- NEBS-compliant design for telecommunications environments

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

Port Configuration: 24x 400GbE QSFP-DD ports
- Port Flexibility: Supports 4x100G breakout for up to 96x 100G ports
- Switching Capacity: 9.6 Tbps
- Forwarding Rate: Up to 3600 Mpps (4 billion pps)
- Packet Buffer: 16GB deep packet buffer with Virtual Output Queues (VOQ)
- Latency: Sub-microsecond forwarding
- Routing Scale: Up to 1.4 million routes with FlexRoute Engine (R3K variant supports 2M routes)
- Power Consumption: Maximum 700W
- Power Supply Options: Configurable redundant PSUs (1500W or 2400W available)
- Form Factor: 1RU rackmount
- Dimensions: 1.75 x 19 x 17.7 inches (44.5 x 483 x 450 mm)
- Weight: 17.6 lbs (8 kg)
- Airflow: Configurable (front-to-rear or rear-to-front)
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Management: Arista EOS, CLI, API, CloudVision, Zero Touch Provisioning (ZTP)
- Certifications: FCC, CE, UL, NEBS

FAQs

Q: What is the difference between the DCS-7280DR3-24 and the DR3K-24 variant?
A: The DCS-7280DR3-24 is the standard model with FlexRoute supporting up to 1.4 million routes, while the DR3K-24 variant offers enhanced routing scale up to 2 million routes with expanded memory for large-scale internet peering and service provider applications.

Q: Can this switch support breakout cables for 100G connectivity?
A: Yes, each 400GbE QSFP-DD port supports 4x100G breakout configurations, allowing you to scale up to 96 ports of 100GbE connectivity using compatible breakout cables or transceivers.

Q: What power supply options are available for the DCS-7280DR3-24?
A: The switch supports configurable redundant power supplies including 1500W AC/DC (PWR-1511-AC-RED, PWR-1511-DC-RED) and 2400W AC/DC options (PWR-2411-AC-RED, PWR-2411-DC-RED) depending on deployment requirements and airflow configuration.

Q: Does this switch require additional licenses for Layer 3 routing features?
A: Arista 7280R3 switches require optional FlexRoute licenses for full routing capabilities. The FLX-Lite license provides up to 256K routes with EVPN, VXLAN, and base MPLS, while the full FLX license enables up to 2M routes with advanced MPLS-LER/LSR and expanded ACL support.

Q: Is the DCS-7280DR3-24 suitable for spine-leaf data center architectures?
A: Yes, the DCS-7280DR3-24 is ideal for spine-leaf deployments with its 9.6 Tbps capacity, 16GB deep buffer, Virtual Output Queuing for lossless forwarding, and comprehensive support for VXLAN, EVPN, and Layer 3 routing protocols required in modern data center fabrics.

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