• Gray metal arista dcs-7280cr3k-32p4a-f network switch router with 32x 100g and 4x 400g ports and ventilation slots
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Arista

Arista DCS-7280CR3K-32P4A-F | 7280R3 32x 100G + 4x 400G Switch Router, 4.8 Tbps

DCS-7280CR3K-32P4A-F

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Description

The Arista DCS-7280CR3K-32P4A-F is a high-performance 1RU switch router delivering 4.8 Tbps of non-blocking switching capacity with 32x 100GbE QSFP28 ports and 4x 400GbE OSFP ports. Built on a deep buffer VOQ architecture with 8 GB packet buffer and quad-core x86 CPU, this K-variant offers expanded routing scale with over 5 million IPv4 routes, full Layer 3 capabilities including BGP, OSPF, MPLS, SR-TE, and VXLAN. Ideal for data center spine, aggregation, and DCI deployments requiring high throughput, low latency, and advanced network virtualization.

Features

Arista EOS (Extensible Operating System) with modular Linux-based architecture and in-service software upgrades
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking and provides deterministic latency
- 8 GB deep packet buffer for burst absorption, traffic shaping, and congestion management
- Full Layer 2/3 switching and routing with BGP, OSPF, IS-IS, and advanced MPLS support
- VXLAN and EVPN for network virtualization and multi-tenancy
- Segment Routing (SR-TE) for traffic engineering and path optimization
- 512-way ECMP for load balancing across parallel paths
- FlexRoute K-variant with over 5M IPv4 routes and 5M IPv6 routes for large-scale routing tables
- MACSec hardware encryption for line-rate security on all ports
- Precision timing with IEEE 1588v2 PTP and Synchronous Ethernet (SyncE)
- Zero-Touch Provisioning (ZTP) for automated deployment and configuration
- CloudVision integration for centralized management, telemetry, and analytics
- Advanced telemetry with sFlow, LANZ (Latency Analyzer), AEM (Advanced Event Management), and DANZ
- Ethernet OAM with CFM, loss measurement, delay measurement, and TWAMP
- Hot-swappable redundant power supplies and fan modules for high availability
- Front-to-rear airflow design optimized for hot/cold aisle data center deployments

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

32x 100GbE QSFP28 ports supporting 100G, 50G, 40G, 25G, and 10G with breakout cables
- 4x 400GbE OSFP ports supporting 400G, 200G, and 100G line rates
- Switching capacity: 4.8 Tbps (9.6 Tbps full duplex)
- Forwarding rate: 2 Bpps
- Packet buffer: 8 GB deep buffer with Virtual Output Queue (VOQ) architecture
- Latency: 3.8 µs store-and-forward
- CPU: Quad-core x86 processor
- System memory: 64 GB DRAM
- Storage: 120 GB SSD
- FlexRoute K-variant: Over 5M IPv4 unicast routes, over 5M IPv6 routes, 384K MAC addresses, 100K+ algorithmic ACL rules
- Management: 1x 10/100/1000 Ethernet, 1x RS-232 console, 1x USB port
- Dimensions: 48.3 x 4.4 x 55.8 cm (19 x 1.75 x 22.0 inches), 1RU
- Weight: 12.3 kg (27.0 lbs)
- Airflow: Front-to-rear (port side to fan side)
- Power supplies: 2x AC (redundant, hot-swappable)
- Operating temperature: 0°C to 40°C (32°F to 104°F)
- Operating humidity: 5% to 90% non-condensing

FAQs

Q: What is the difference between the 32P4A and standard 32P4 models?
A: The DCS-7280CR3K-32P4A is an enhanced variant offering large route table support with the K-variant FlexRoute capability (over 5M IPv4 routes), 64 GB system memory, and 120 GB SSD storage as standard. The 'A' suffix typically indicates advanced routing scale optimized for service provider and large enterprise deployments.

Q: Can this switch support port breakout configurations?
A: Yes, the 32x 100GbE QSFP28 ports support breakout to 50GbE, 40GbE (QSFP+), 25GbE, and 10GbE for increased port density up to 96 total interfaces. The 4x OSFP ports support 400G, 200G, and 100G line rates with appropriate optics.

Q: What routing protocols and features does this switch support?
A: The 7280CR3K-32P4A-F supports full Layer 2/3 routing including BGP, OSPF, IS-IS, MPLS (LDP, RSVP-TE, BGP LU), Segment Routing (SR-TE), EVPN, VXLAN, and 512-way ECMP. It also includes advanced features like MACSec encryption, PTP/SyncE timing, and comprehensive telemetry.

Q: Is this switch suitable for data center spine or leaf deployments?
A: This model is optimized for spine, aggregation, and data center interconnect (DCI) roles due to its high port count, deep buffer architecture, and expanded routing scale. The 4.8 Tbps throughput and low 3.8 µs latency make it ideal for high-performance overlay and underlay fabrics.

Q: Does the switch include software licensing or support subscription costs?
A: Arista switches run EOS (Extensible Operating System) which is included with the hardware. CloudVision integration is available for centralized management. Check with your Arista partner for specific licensing models and support subscription options.

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