• 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-7280DR3AM-36-FLX-F | 7280R3A 36-Port 400G Switch, 14.4 Tbps, MACsec

DCS-7280DR3AM-36-FLX-F

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Description

The Arista DCS-7280DR3AM-36-FLX-F is a high-performance data center switch router designed for large-scale cloud, service provider, and enterprise environments. Featuring 36 ports of 400GbE QSFP-DD connectivity with wire-speed MACsec encryption, it delivers 14.4 Tbps throughput and 5.4 Bpps forwarding capacity with 16 GB deep packet buffers. The FLX license enables advanced routing with over 256K routes, full MPLS, VXLAN, EVPN, and Segment Routing capabilities for demanding data center interconnect, internet peering, and AI/ML workloads.

Features

Wire-speed Layer 2 and Layer 3 forwarding with hardware-based routing
- FlexRoute engine with algorithmic forwarding for internet-scale routing
- Enhanced MACsec and TunnelSec for comprehensive encryption
- Virtual Output Queue (VOQ) architecture for lossless, low-latency forwarding
- 16 GB deep packet buffers to absorb microbursts and prevent packet loss
- Algorithmic ACLs for high-scale policy-based forwarding and telemetry
- EVPN-VXLAN for overlay networking and data center virtualization
- MPLS and Segment Routing for traffic engineering and service provider deployments
- IEEE 1588v2 Precision Time Protocol (PTP) with OCXO and Synchronous Ethernet
- Inband Network Telemetry (INT) for real-time per-flow visibility
- Accelerated sFlow for line-rate flow sampling and network analytics
- Multi-Chassis Link Aggregation (MLAG) for active-active redundancy
- Equal-Cost Multi-Path (ECMP) routing with flexible hashing
- BGP, OSPF, ISIS routing protocols with large route scaling
- 400G-ZR and DWDM coherent optics support for long-haul DCI
- Hot-swappable redundant power supplies and fan modules
- Zero Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for network-wide orchestration and telemetry
- Full REST API, Python, and automation support via Arista EOS
- NEBS Level 3 compliant for service provider 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

36 x 400GbE QSFP-DD ports (support 400G/200G/100G/50G/40G/25G/10G with compatible optics)
- Switching Capacity: 14.4 Tbps (28.8 Tbps full-duplex)
- Forwarding Rate: 5.4 billion packets per second
- Packet Buffer: 16 GB deep buffers with Virtual Output Queue (VOQ) architecture
- CPU: Eight-core x86 processor
- System Memory: 64 GB
- Enhanced MACsec: Wire-speed AES-256-GCM encryption on all ports
- FLX License: Full routing up to 256K+ routes, advanced MPLS-LER/LSR, EVPN, VXLAN, Segment Routing
- Routing Table: Supports large-scale IPv4/IPv6 routing with FlexRoute engine
- Precision Timing: IEEE 1588 PTP and Synchronous Ethernet with OCXO
- 2 x OSFP-LS ports for 400G-ZR DWDM deployment
- Management: CLI, EOS Web UI, REST API, SNMP, Zero Touch Provisioning
- Airflow: Front-to-rear (port-to-fan)
- Power Supplies: 2 x redundant hot-swappable AC PSU
- Dimensions: 2RU form factor
- Operating Temperature: 0°C to 40°C

FAQs

Q: What is the difference between the FLX and base license on this switch?
A: The FLX license included with this model enables advanced routing capabilities including support for over 256K routes (compared to basic routing on unlicensed models), full MPLS LER/LSR functionality, EVPN, VXLAN, Segment Routing, and over 24K ACL entries. This makes it suitable for internet peering, large-scale data center interconnect, and service provider edge deployments.

Q: What encryption capabilities does the 7280DR3AM series provide?
A: The DR3AM variant includes wire-speed Enhanced MACsec (IEEE 802.1AE) with AES-256-GCM encryption on all 36 ports at any supported speed from 10G to 400G. It also supports Arista TunnelSec for Layer 2 and Layer 3 encryption including IPsec and VXLANsec, providing comprehensive data-in-transit protection for data center interconnect and wide area deployments.

Q: Can this switch support 100G and 25G connections?
A: Yes, all 36 QSFP-DD ports are flexible and support multiple speeds including native 400G, 200G, 100G (4x100G with breakout), 50G, 40G, and 25G/10G via compatible transceivers and breakout cables. The switch can be configured for mixed-speed environments to support equipment migrations and heterogeneous data center fabrics.

Q: What are the primary use cases for the 7280R3A series?
A: The 7280R3A series is designed for high-performance data center spine and leaf architectures, AI/ML cluster networking with lossless forwarding, internet peering and DCI with large routing tables, content delivery networks requiring deep buffers, storage networks, and service provider edge routing. The deep 16 GB buffers and VOQ architecture eliminate head-of-line blocking for demanding workloads.

Q: Is Arista EOS included with this switch?
A: Yes, the switch runs Arista EOS (Extensible Operating System), a fully featured modular network operating system built on a Linux kernel. EOS provides advanced Layer 2/3 features, automation via REST APIs, in-service software updates, CloudVision integration, and comprehensive telemetry including accelerated sFlow and Inband Network Telemetry (INT).

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