• Gray metal Arista DCS-7280CR3A-24D12-R network switch with 24 100G ports and 12 400G ports and ventilation slots
1 1

Arista

Arista DCS-7280CR3A-24D12-R | 7280R3A 24-Port 100G + 12-Port 400G Switch, 7.2 Tbps

DCS-7280CR3A-24D12-R

Stock Status: Enquire

Request Quote
Sale Sold out
Shipping calculated at checkout.
20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Arista DCS-7280CR3A-24D12-R 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. It delivers wire-speed performance with 7.2 Tbps switching capacity and 2.7 Bpps forwarding rate, with 8 GB packet buffer for demanding workloads. This model features rear-to-front airflow and dual AC power supplies, ideal for spine-leaf architectures, cloud data centers, and service provider networks requiring high-density 100G and 400G connectivity with advanced Layer 2 and Layer 3 capabilities.

Features

Wire-speed Layer 2 and Layer 3 switching with non-blocking architecture
- Advanced routing protocols: BGP, OSPF, IS-IS, MPLS, Segment Routing
- EVPN-VXLAN for network virtualization and overlay networking
- Multi-Chassis Link Aggregation (MLAG) for active-active topologies
- Equal-Cost Multi-Path (ECMP) routing for scalable Layer 3 designs
- Flexible forwarding table allocation with configurable profiles
- Accelerated sFlow for hardware-based network telemetry at 1:500 sampling rates
- Inband Network Telemetry (INT) for per-flow visibility
- Algorithmic ACLs for scalable access control and policy-based forwarding
- Quality of Service (QoS) with priority queuing and traffic shaping
- VLAN support with 4K VLAN IDs and VLAN translation
- Rapid Spanning Tree Protocol (RSTP) and Multiple Spanning Tree Protocol (MSTP)
- IEEE 1588v2 Precision Time Protocol (PTP) with OCXO
- Synchronous Ethernet (SyncE) for carrier-grade timing
- Hot-swappable redundant power supplies and fan modules
- Zero Touch Provisioning (ZTP) for automated deployment
- Arista EOS with in-service software upgrades and self-healing architecture
- CloudVision integration for network-wide automation and analytics
- RADIUS and TACACS+ authentication with role-based access control

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

24x 100GbE QSFP ports
- 12x 400GbE QSFP-DD ports
- Maximum 72x 100G or 12x 400G ports
- Switching capacity: 7.2 Tbps (14.4 Tbps full-duplex)
- Forwarding rate: 2.7 billion packets per second
- Packet buffer: 8 GB
- Latency: From 3.8 microseconds
- CPU: Eight-core x86 processor
- System memory: 64 GB DDR4
- Onboard storage: 480 GB SSD
- Airflow: Rear-to-front (R suffix)
- Power supplies: Dual hot-swappable AC
- Typical power consumption: 346W operational
- Dimensions: 48.3 x 4.4 x 59.2 cm (1RU)
- Weight: 14.8 kg (32.6 lbs)
- Management: CLI, SNMP, Telnet, EOS API
- Precision timing: PTP, SyncE with OCXO

FAQs

Q: What is the difference between the R, F, and # suffix models?
A: The R suffix indicates rear-to-front airflow, F indicates front-to-rear airflow, and # indicates configurable fans and power supplies. All models have identical port configurations and performance specifications.

Q: Does this switch support MACsec encryption?
A: The base DCS-7280CR3A-24D12-R model does not include MACsec. For encryption capabilities, consider the DCS-7280CR3AM-24D12-R which includes MACsec on all ports, or the DCS-7280CR3AK-24D12-R which adds enhanced encryption with TunnelSec and large routing table support.

Q: What routing scale does this switch support?
A: The standard R3A model supports typical data center routing scales. For internet peering or large-scale routing with over 256K routes, the FlexRoute-enabled variant or the R3AK model with support for over 5 million routes is recommended.

Q: Can this switch be deployed in a spine-leaf architecture?
A: Yes, the DCS-7280CR3A-24D12-R is ideal for both spine and leaf roles in modern data center architectures. It supports MLAG for Layer 2 designs, ECMP for Layer 3 routing, and EVPN-VXLAN for overlay networking.

Q: What optics are supported on the QSFP and QSFP-DD ports?
A: The 24 QSFP ports support 40G and 100G transceivers including QSFP+, QSFP28, and breakout configurations for 10G/25G/50G. The 12 QSFP-DD ports support 400G optics and are backward compatible with 100G QSFP28 modules, offering maximum deployment flexibility.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us