• This black arista dcs-7280dr3a-54-dc-f server rack shows multiple slots with green-lit 400g qsfp-dd switch components
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Arista

Arista DCS-7280DR3A-54-FLX-F | 7280R3A 54-Port 400G Switch, 21.6Tbps, FLX License

DCS-7280DR3A-54-FLX-F

Stock Status: Enquire

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Description

The Arista DCS-7280DR3A-54-FLX-F is a purpose-built 2RU data center switch router delivering 54 wire-speed 400GbE QSFP-DD ports with 21.6 Tbps capacity and 8.1 billion packets per second throughput. Designed for high-performance cloud data centers, internet exchanges, and content delivery networks, it features deep packet buffers, FLX license with routing up to 256K routes, EVPN, VXLAN, MPLS LSR capabilities, and front-to-rear airflow with dual AC power supplies. Ideal for universal leaf-spine architectures requiring ultra-low latency and non-blocking performance.

Features

Non-blocking wire-speed 400GbE performance with 21.6 Tbps throughput across all 54 ports
- Deep packet buffers for burst absorption and lossless forwarding in high-performance environments
- FlexRoute engine with flexible forwarding profiles supporting up to 256K IPv4/IPv6 routes (FLX license)
- Comprehensive Layer 2 features: VLAN, MLAG, LACP, STP/RSTP/MSTP, 802.1Q, Q-in-Q
- Advanced Layer 3 routing: BGP, OSPF, IS-IS, ECMP, BFD, PIM, IGMP, VRF
- Overlay networking: VXLAN bridging and routing, EVPN-VXLAN, VRF-lite
- MPLS support: Base MPLS LSR with label switching and Segment Routing
- Accelerated sFlow for network telemetry and monitoring at wire speed
- Inband Network Telemetry (INT) for per-flow visibility, latency tracking, and congestion monitoring
- Quality of Service (QoS): 8 egress queues, DSCP/CoS marking, traffic shaping, and policing
- Security: ACLs (IPv4/IPv6), DHCP snooping, Dynamic ARP Inspection, IP Source Guard, AAA, RADIUS, TACACS+
- Precision timing: IEEE 1588v2 PTP for nanosecond-level clock synchronization
- Network automation: Zero Touch Provisioning (ZTP), CloudVision integration, REST API, Python scripting
- Advanced monitoring: LANZ (Latency Analyzer), streaming telemetry, syslog, SNMP v1/v2c/v3
- Arista EOS with stateful switchover, in-service software upgrades, and Linux shell access
- Support for 400G-ZR DWDM optics for long-reach data center interconnect
- Redundant hot-swappable power supplies and fan modules for high availability

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

54x 400GbE QSFP-DD ports (supports 1G/10G/25G/40G/50G/100G/200G/400G with breakout)
- Switching capacity: 21.6 Tbps full-duplex, non-blocking
- Forwarding rate: 8.1 billion packets per second (bpps)
- Latency: 3.8 microseconds (typical)
- Deep packet buffers for burst absorption and lossless performance
- FLX License: Full routing up to 256K routes, EVPN, VXLAN, Segment Routing, base MPLS LSR
- Layer 2 and Layer 3 feature set with MLAG, ECMP, BGP, OSPF, IS-IS
- Arista EOS operating system with CloudVision support
- Management: CLI, Web GUI, SNMP, SSH, REST API, OpenConfig
- Onboard storage: 120GB SSD
- Memory: High-capacity for control plane and routing tables
- Power supplies: 2x 3000W AC (PWR-3001-AC-RED), redundant hot-swappable
- Power consumption: 933W typical (25°C, 50% load, excluding transceivers)
- Airflow: Front-to-rear (port side to fan side)
- Form factor: 2RU rackmount
- Operating temperature: 0°C to 40°C (32°F to 104°F)
- Certifications: FCC, CE, NEBS compliance ready
- Hot-swappable fan modules for serviceability

FAQs

Q: What license is included with the DCS-7280DR3A-54-FLX-F?
A: The switch includes the FLX-Lite license for Arista Fixed switches Group 5, providing full routing up to 256K routes, EVPN, VXLAN, Segment Routing, and base MPLS LSR capabilities. This enables advanced Layer 3 functionality for data center spine, leaf, and WAN edge deployments.

Q: What port speeds and breakout configurations are supported?
A: Each 400G QSFP-DD port supports flexible speeds including native 400G, 200G (8x25G lanes), 100G, 50G, 40G, 25G, 10G, and 1G with appropriate transceivers and breakout cables. This allows mix-and-match connectivity for migration and multi-speed environments.

Q: What are the primary use cases for this switch?
A: The 7280DR3A-54 is ideal for high-performance data center spine and leaf architectures, internet peering, content delivery networks (CDN), AI/ML workloads with east-west traffic, high-bandwidth storage networks, and DCI (data center interconnect) applications requiring deep buffers and ultra-low latency.

Q: Can this switch be upgraded to support larger routing tables or encryption?
A: Yes, the platform can be upgraded with additional software licenses. The FLX license (not included) provides routing up to 2M routes and advanced MPLS LER/LSR features. Enhanced Security licenses enable line-rate AES-256 MACsec and TunnelSec encryption on encryption-capable models.

Q: What power supplies and fan modules are compatible?
A: The switch supports 2x PWR-3001-AC-RED (3000W AC forward airflow) or PWR-3001-DC-RED (3000W DC forward airflow) hot-swappable power supplies. Compatible fan modules include FAN-7012H-RED for high-speed front-to-rear airflow, ensuring optimal cooling in data center environments.

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