• Gray metal arista dcs-7280dr3a-36-dc-f 36-port 400g network switch with indicator lights and 16gb buffer shown from front
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Arista

Arista DCS-7280DR3AK-36-DC-F | 7280R3A 36-Port 400GbE Switch, TunnelSec, DC Power

DCS-7280DR3AK-36-DC-F

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Description

The Arista DCS-7280DR3AK-36-DC-F is a high-performance data center switch router delivering 36 ports of 400GbE QSFP-DD connectivity with 14.4 Tbps switching capacity. Engineered for large-scale cloud and service provider networks, it features FlexRoute support for over 5 million routes, TunnelSec AES-256-GCM encryption, deep packet buffers, and front-to-rear airflow with DC power supplies. Ideal for spine and leaf architectures, data center interconnect, internet peering, and high-bandwidth AI/ML workloads.

Features

Arista EOS (Extensible Operating System) with single-image consistency across all Arista platforms
- FlexRoute algorithmic routing table with support for 5M+ routes
- Arista TunnelSec strong encryption for secure Layer 2/Layer 3 tunnels
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking
- 16GB deep packet buffers for lossless performance under congestion
- EVPN-VXLAN overlay networking for multi-tenant virtualization
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topologies
- Accelerated sFlow and IPFIX for line-rate telemetry and flow monitoring
- Precision Time Protocol (PTP) IEEE 1588v2 for nanosecond-level timing accuracy
- CloudVision integration for network-wide automation and analytics
- Advanced QoS with weighted fair queuing, strict priority, and traffic shaping
- BGP, OSPF, IS-IS, MPLS, Segment Routing, and MPLS-TE support
- VXLAN routing and bridging with hardware VTEP
- Comprehensive ACLs including algorithmic ACLs for scalable policy enforcement
- Zero Touch Provisioning (ZTP) for automated deployment
- Hot-swappable redundant fan modules and power supplies
- OpenConfig and gNMI for model-driven programmability
- Inband Network Telemetry (INT) for real-time congestion visibility

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

36x 400GbE QSFP-DD ports supporting 400G/200G/100G/40G/25G/10G with breakout cables
- Switching capacity: 14.4 Tbps
- Forwarding rate: 5.4 billion packets per second (Bpps)
- Deep packet buffers: 16GB virtual output queue (VOQ) architecture
- FlexRoute engine: Supports over 5 million IPv4/IPv6 routes
- TunnelSec: Wire-speed AES-256-GCM encryption and IEEE 802.1AE MACsec
- Memory: 64GB system memory, 8-core CPU
- Form factor: 2RU fixed configuration
- Power: DC power supplies (PWR-2411-DC-RED, 2400W), no PSU included in base SKU
- Airflow: Front-to-rear (port side to fan side)
- Management: Arista EOS with CLI, REST API, gNMI, OpenConfig, SNMP
- Latency: Sub-microsecond, deterministic
- Operating temperature: 0°C to 40°C
- Compliance: IEEE 802.3, 802.1Q, 802.1AE, RoHS

FAQs

Q: What routing scale does the DCS-7280DR3AK-36-DC-F support?
A: This model features the FlexRoute engine with large route table support, scaling to over 5 million IPv4/IPv6 routes in hardware. It's designed for internet peering, MPLS core, and carrier edge applications requiring Internet-scale routing.

Q: Does this switch include power supplies?
A: No, the -DC-F suffix indicates DC power with configurable fans and PSU. Power supplies must be ordered separately. Compatible DC PSUs are PWR-2411-DC-RED (2400W, front-to-rear airflow).

Q: What encryption capabilities does this model provide?
A: The DCS-7280DR3AK-36-DC-F supports both IEEE 802.1AE MACsec for line-rate Layer 2 frame encryption and Arista TunnelSec for advanced AES-256-GCM encryption at Layer 2 or Layer 3, providing secure data center interconnect and WAN encryption.

Q: Can the 400GbE ports be broken out to lower speeds?
A: Yes, each QSFP-DD port supports flexible breakout configurations including 2x200G, 4x100G, 8x50G, or 4x25G/10G using compatible breakout cables and transceivers, providing deployment flexibility for mixed-speed environments.

Q: What are the typical use cases for this switch?
A: Ideal for high-performance data center spine and leaf deployments, AI/ML fabric infrastructure, data center interconnect with long-haul optics, internet peering and BGP route reflection, content delivery networks, and secure multi-tenant cloud environments requiring encryption.

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