• Gray metal arista dcs-7280cr3ak-24d12-s-f network switch with 24 100g ports 12 400g ports and ventilation slots
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Arista

Arista DCS-7280CR3AK-24D12-S-F | 7280R3A 24-Port 100G + 12-Port 400G Switch, 7.2 Tbps

DCS-7280CR3AK-24D12-S-F

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Description

The Arista DCS-7280CR3AK-24D12-S-F is a high-performance data center switch router featuring 24x 100GbE QSFP ports and 12x 400GbE QSFP-DD ports in a compact 1RU form factor. Designed for enterprise data centers and service providers, it delivers 7.2 Tbps throughput with 2.7 billion packets per second, advanced MACsec encryption, large routing tables supporting over 5 million routes via FlexRoute, and 8GB deep packet buffers for lossless performance. This secure boot-enabled model includes front-to-rear airflow and dual AC power supplies for robust redundancy.

Features

Non-blocking wire-speed Layer 2 and Layer 3 switching across all ports
- Advanced MACsec (IEEE 802.1AE) and TunnelSec (IPsec/VXLANsec) encryption at line rate up to 9.6 Tbps
- Arista FlexRoute engine supporting over 5 million IPv4/IPv6 routes for internet peering and DCI
- 8 GB dynamic deep packet buffers with Virtual Output Queuing (VOQ) for lossless forwarding
- Algorithmic ACLs for flexible, high-scale access control and policy-based forwarding
- Accelerated sFlow and IPFIX for embedded network telemetry and security monitoring
- Inband Network Telemetry (INT) for real-time per-flow monitoring of drops, latency, and congestion
- EVPN-VXLAN, MPLS, and Segment Routing support for overlay and carrier-grade networking
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topologies
- Precision Time Protocol (PTP) and SyncE for timing synchronization
- Comprehensive QoS with priority queuing, traffic shaping, and WRED
- VLAN, VRF, and multi-tenancy support with up to 4096 VLANs
- Hot-swappable redundant power supplies and fan modules
- Zero Touch Provisioning (ZTP) and automated configuration via CloudVision
- Arista EOS with Linux foundation for programmability, automation, and third-party integration

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: 24x 100GbE QSFP (25/40/50/100G multi-rate) + 12x 400GbE QSFP-DD
- Switching Capacity: 7.2 Tbps (full-duplex 14.4 Tbps)
- Forwarding Rate: 2.7 billion packets per second (Bpps)
- Latency: From 3.8 microseconds
- Packet Buffer: 8 GB deep buffer for burst absorption
- Routing Table: Large route scale supporting over 5 million routes with FlexRoute engine
- CPU: Eight-core x86 processor
- Memory: 64 GB system memory, 480 GB SSD storage
- Security: Line-rate AES-256-GCM MACsec and TunnelSec encryption, secure boot enabled
- Power: Dual redundant AC power supplies, 346W typical operational consumption
- Dimensions: 48.3 x 4.4 x 59.2 cm (19 x 1.75 x 23.3 inches), 1RU
- Weight: 14.8 kg (32.6 lbs)
- Airflow: Front-to-rear (F-R) cooling
- Management: Arista EOS, CLI, SNMP, REST API, NetDB, CloudVision

FAQs

Q: What is the difference between the DCS-7280CR3AK-24D12-S-F and standard R3A models?
A: The R3AK variant includes large-scale routing capabilities supporting over 5 million routes via FlexRoute, enhanced MACsec encryption, and advanced Algorithmic ACLs. The -S suffix indicates secure boot is enabled, providing firmware integrity validation at startup. The -F denotes front-to-rear airflow orientation.

Q: Can this switch support both 100G and 400G interfaces simultaneously?
A: Yes, the DCS-7280CR3AK-24D12-S-F is designed with dedicated port groups: 24 ports for 100GbE QSFP and 12 ports for 400GbE QSFP-DD. The QSFP ports support multi-rate operation at 25/40/50/100G, while QSFP-DD ports can operate at 100/200/400G, providing flexible deployment options.

Q: What are the typical deployment scenarios for this model?
A: The DCS-7280CR3AK-24D12-S-F is ideal for data center leaf-spine architectures, high-performance computing clusters, internet peering with large BGP tables, secure data center interconnect with encryption, content delivery networks requiring deep buffers, and AI/ML workloads with east-west traffic patterns.

Q: Does this switch require software licensing for full functionality?
A: Arista switches typically include base features with the hardware purchase. Advanced features like CloudVision integration, certain telemetry functions, or premium software subscriptions may require separate licensing. Contact your Arista account team or authorized reseller for specific licensing requirements for your deployment.

Q: What routing protocols and overlay technologies are supported?
A: The switch supports comprehensive Layer 3 routing including BGP, OSPF, IS-IS, and static routing with over 5M route capacity. It provides full EVPN-VXLAN overlay support, MPLS, Segment Routing, VPN services (L2/L3 VPN, VPLS), and IPv4/IPv6 dual stack with 24,000 multicast routes for advanced cloud and carrier networking.

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