• 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-F | 7280R3A 54-Port 400G QSFP-DD Switch, 21.6Tbps, 2RU

DCS-7280DR3A-54-F

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Description

The Arista DCS-7280DR3A-54-F is a high-performance data center switch router delivering 54 ports of 400GbE QSFP-DD connectivity with 21.6 Tbps switching capacity and 8.1 billion packets per second forwarding rate. Designed for hyperscale cloud, content delivery, and service provider environments, it features dynamic deep packet buffers up to 24GB, FlexRoute internet-scale routing capabilities, and line-rate MACsec encryption. This 2RU fixed system offers front-to-rear airflow cooling with redundant AC power supplies, making it ideal for high-density leaf-spine architectures and data center interconnect applications.

Features

FlexRoute Engine for internet-scale routing with flexible forwarding table allocation
- Dynamic deep packet buffer up to 24GB for lossless forwarding and VOQ architecture
- Wire-speed Layer 2 and Layer 3 forwarding with sub-4 microsecond latency
- Advanced traffic management with Quality of Service (QoS) and congestion control
- MLAG (Multi-Chassis Link Aggregation) for Layer 2 high availability
- 512-way ECMP (Equal Cost Multi-Path) routing for Layer 3 scalability
- VXLAN hardware VTEP with EVPN control plane for network virtualization
- Accelerated sFlow and IPFIX for line-rate network telemetry and monitoring
- Precision Time Protocol (PTP) IEEE 1588 and SyncE for accurate time synchronization
- Advanced Event Management (AEM) for automation and event-driven operations
- CloudVision integration for network-wide monitoring and orchestration
- Hitless ISSU (In-Service Software Upgrade) for zero-downtime maintenance
- Hot-swappable redundant power supplies and fan modules (N+1 redundancy)
- Comprehensive security features including DHCP snooping, dynamic ARP inspection, and 802.1X
- Flexible port breakout supporting 400G, 200G, 100G, 50G, and 25G configurations

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: 54 x 400GbE QSFP-DD ports
- Switching Capacity: 21.6 Tbps full-duplex
- Forwarding Rate: 8.1 billion packets per second
- Latency: <3.8 microseconds (64-byte packets)
- Packet Buffer: Dynamic deep buffer up to 24GB
- Routing Table: Supports internet-scale routing with FlexRoute engine
- Management: CLI, web GUI, SNMP, NETCONF, JSON-RPC, SSH
- Power Supply: 2 x 3000W AC power supplies (redundant, hot-swappable)
- Typical Power Draw: 933W / Maximum: 1715W
- Airflow: Front-to-rear (port side to fan side)
- Form Factor: 2RU rack-mountable (19 x 3.46 x 30.08 inches / 48.3 x 8.8 x 76.4 cm)
- Weight: Approximately 77 lbs (35 kg)
- Operating System: Arista EOS (Extensible Operating System)
- Operating Temperature: 0°C to 40°C (32°F to 104°F)
- Certifications: FCC Class A, CE, NRTL, BSMI, KCC, RCM, VCCI, UKCA, NEBS

FAQs

Q: What transceiver types are supported on the DCS-7280DR3A-54-F?
A: The switch supports a wide range of QSFP-DD 400G transceivers including 400GBASE-DR4, SR8, FR4, LR8, ER8, ZR, and direct attach copper cables. It also supports breakout configurations for 100G, 50G, and 25G connectivity using appropriate optics and cables.

Q: What is the typical use case for this switch?
A: The DCS-7280DR3A-54-F is designed for hyperscale data center spine and leaf architectures, high-performance computing clusters, content delivery networks, internet peering applications, and service provider core networks requiring ultra-high bandwidth and low latency.

Q: Does this model support encryption?
A: The base DCS-7280DR3A-54-F model supports standard features. For enhanced MACsec encryption capabilities, the DCS-7280DR3AM-54-F variant is available. For large-scale routing with encryption, the DCS-7280DR3AK-54-F offers both features.

Q: What routing protocols and features does this switch support?
A: The switch supports comprehensive Layer 2 and Layer 3 protocols including BGP, OSPF, IS-IS, MLAG, ECMP, VXLAN, EVPN, MPLS, segment routing, and internet-scale routing with the FlexRoute engine. It also supports IPv4 and IPv6 with full internet routing table capabilities.

Q: Is NEBS compliance available for this model?
A: Yes, NEBS compliance is available using an optional ground extender kit (KIT-GND-EXT-2RU) specifically designed for the DR3A-54 models, making it suitable for service provider and telecom environments.

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