• Gray metal arista dcs-7280qr-c36-m-f network switch with multiple ports and blue led indicators on the back panel
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Arista

Arista DCS-7280QR-C36-M-R | 7280R 24-Port 40G + 12-Port 100G Switch, 4.32 Tbps

DCS-7280QR-C36-M-R

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Description

The Arista DCS-7280QR-C36-M-R is a high-performance data center switch delivering 4.32 Tbps switching capacity with 24x 40GbE QSFP+ and 12x 100GbE QSFP ports. This model features expanded memory and SSD storage for enhanced buffering and advanced AlgoMatch capabilities. With rear-to-front airflow cooling, dual redundant power supplies, and deep packet buffers, it excels in demanding leaf-spine architectures, storage networks, and cloud environments requiring ultra-low latency and lossless forwarding.

Features

Arista EOS operating system with consistent feature set across entire portfolio
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking
- Deep packet buffering for lossless forwarding in congested scenarios
- VXLAN and EVPN support for network virtualization and overlay networks
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topology
- Equal Cost Multi-Path (ECMP) routing for scalable Layer 3 designs
- CloudVision integration for network-wide automation and telemetry
- LANZ (Latency Analyzer) for real-time microburst detection
- DANZ (Data Analyzer) for advanced traffic mirroring and TAP aggregation
- Zero Touch Provisioning (ZTP) for rapid deployment
- IEEE 1588v2 PTP hardware-assisted precision timing
- Comprehensive Layer 2 features including Spanning Tree, VLANs, LACP
- Advanced security with flexible ACLs and policy-based forwarding
- Hot-swappable power supplies and fan modules for high availability
- Streaming telemetry via gNMI, eAPI, and OpenConfig
- Python and REST API programmability for automation

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

Total Ports: 24x 40GbE QSFP+ and 12x 100GbE QSFP ports
- Switching Capacity: 4.32 Tbps
- Forwarding Rate: 1.44 billion packets per second
- MAC Address Table: 768,000 addresses
- Airflow: Rear-to-front (port side to fan side)
- Power Supply: Dual hot-swappable redundant AC power supplies
- Memory: Expanded memory with SSD included
- Management Ports: 1x RJ45 serial console, 1x RJ45 management, 2x USB
- Operating System: Arista EOS (Extensible Operating System)
- Deep Buffer Architecture: Virtual Output Queue (VOQ) for lossless forwarding
- Form Factor: 1RU rack-mountable

FAQs

Q: What is the difference between the DCS-7280QR-C36-M-R and the base C36-R model?
A: The M-R variant includes expanded memory and an integrated SSD for enhanced packet buffering, AlgoMatch capabilities, and advanced traffic analytics. This makes it ideal for high-scale deployments requiring deep buffers and sophisticated ACL processing.

Q: What does the R suffix indicate in the model number?
A: The R designates rear-to-front airflow, where cool air is drawn from the fan side (rear) and hot air exhausts from the port side (front). This is designed for data centers with hot-aisle/cold-aisle cooling configurations where equipment exhausts heat toward the hot aisle.

Q: What Layer 3 routing protocols does this switch support?
A: The 7280QR-C36-M-R supports comprehensive Layer 3 routing including BGP, OSPF, ISIS, MPLS, EVPN, VXLAN, and ECMP. It provides internet-scale routing with deep buffer architecture optimized for storage and data center fabric deployments.

Q: Can the QSFP+ ports be used at different speeds?
A: Yes, the 24 QSFP+ ports support 40GbE natively and can also be configured for 4x 10GbE breakout mode. The 12 QSFP ports support 100GbE and can be configured for 40GbE or various breakout configurations depending on transceiver and cabling.

Q: Is this switch suitable for VXLAN overlay networks?
A: Absolutely. The DCS-7280QR-C36-M-R fully supports VXLAN with EVPN control plane for multi-tenant overlay networks, data center interconnect, and modern spine-leaf fabric architectures. Arista EOS provides comprehensive VXLAN routing and bridging capabilities.

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