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by Arista
Product Line: Arista 7280R Series
Product Type: Data Center Switch
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Original price $0.00 - Original price $0.00
Original price
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Current price $0.00
Title: Surplus

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Product Description

The DCS-7280QR-C36 Arista switch features 24x40GbE QSFP+ and 12x100GbE QSFP ports, supported by a high-capacity, ultra-deep packet buffer up to 32GB, aimed at eliminating head-of-line blocking through Virtual Output Queues per port. It is equipped with redundant and hot-swap power supplies and fans, offering over 94% efficiency, and provides flexible cooling options with front-to-rear or rear-to-front airflow, ensuring operational reliability and adherence to NEBS standards. Advanced network features include CloudVision, VXLAN support, LANZ for microburst detection, DANZ for enhanced mirroring and TAP aggregation, and Zero Touch Provisioning (ZTP), powered by a high-performance x86 CPU, with up to 16GB DRAM and 4GB Flash, supporting user applications in a VM environment on a modular network OS.

FAQs for the DCS-7280QR-C36

  • What are the key features of the 24x40GbE QSFP+ & 12x100GbE QSFP switch?
    Answer: Key features include a 32GB ultra-deep packet buffer, virtual output queues per port, over 94% efficient power supplies, redundant & hot-swap power and fans, configurable fans and PSU, front-to-rear or rear-to-front cooling, designed for NEBS, tool-less rails, CloudVision, VXLAN, LANZ, DANZ, VM Tracer, Zero Touch Provisioning (ZTP), Advanced Event Monitoring, sFlow, a high-performance x86 CPU, up to 16GB DRAM, 4GB Flash, VM capabilities, a single binary image, and a fine-grained modular network OS.
  • How does the switch ensure efficient power usage?
    Answer: The switch uses power supplies that are over 94% efficient.
  • Can the switch's cooling direction be configured?
    Answer: Yes, the switch supports configurable cooling with options for front-to-rear or rear-to-front airflow.
  • What are the benefits of Virtual Output Queues per port?
    Answer: Virtual Output Queues per port eliminate head-of-line blocking, improving network efficiency and reducing latency.
  • Is the switch's power and cooling system reliable?
    Answer: Yes, the switch features redundant and hot-swappable power and fans for high reliability and uptime.
  • How does the switch support network visibility and analytics?
    Answer: It supports enhanced network visibility and analytics through features like LANZ for microburst detection, DANZ for advanced mirroring & TAP aggregation, and sFlow for traffic monitoring.
  • What provisions does the switch have for simplified deployment and management?
    Answer: The switch supports Zero Touch Provisioning (ZTP) for easy deployment, CloudVision for management, and tool-less rails for simple installation.
  • Does the switch have capabilities for virtualization?
    Answer: Yes, it supports virtualization with features like VM Tracer and the ability for user applications to run in a VM.
  • What hardware specifications does the switch have?
    Answer: The hardware specifications include a high-performance x86 CPU, up to 16GB DRAM, and 4GB Flash.
  • How does the switch handle network traffic and ensure smooth data flow?
    Answer: The switch employs an ultra-deep packet buffer up to 32GB and Virtual Output Queues per port to manage network traffic efficiently and ensure smooth data flow.

Product Review

The Arista DCS-7280QR-C36 switch offers a high-density configuration with 24x40GbE QSFP+ & 12x100GbE QSFP ports, catering to demanding data center environments. Its ultra-deep packet buffer of up to 32GB and Virtual Output Queues per port effectively mitigate congestion and head-of-line blocking, enhancing network performance. However, the complexity of its advanced features, such as DANZ for mirroring and TAP aggregation, VM Tracer, and CloudVision integration, may require a steep learning curve for network teams not familiar with Arista's ecosystem.


The Arista DCS-7280QR-C36 is a high-capacity switch designed to meet the demands of modern data centers. It features 24x40GbE QSFP+ and 12x100GbE QSFP ports, offering a versatile and scalable networking solution. The switch is equipped with configurable fans and power supply units (PSUs) to ensure optimal performance and reliability. It includes 2xC13-C14 cords for convenient connectivity. One of the standout features of the DCS-7280QR-C36 is its ultra-deep packet buffer, which can reach up to 32GB. This large buffer size enables the switch to handle sudden bursts of data traffic without packet loss, ensuring smooth and efficient data transmission. Additionally, the switch employs Virtual Output Queues per port, effectively eliminating head-of-line blocking and further enhancing the network's performance. The power supplies of the DCS-7280QR-C36 are designed to be over 94% efficient, contributing to lower operational costs and a reduced environmental footprint. The switch also supports redundant and hot-swap power and fans, allowing for uninterrupted operation and easy maintenance. Depending on the deployment requirements, it offers front-to-rear or rear-to-front cooling options and is designed to comply with NEBS standards, ensuring robustness in various operational environments. Installation is simplified with tool-less rails, making it easy to deploy the switch in data center racks. The DCS-7280QR-C36 is also equipped with several advanced features to enhance network management and visibility: - CloudVision and VXLAN support for efficient cloud networking and next-generation data centers. - LANZ for microburst detection, allowing for real-time identification and mitigation of network congestion. - DANZ Advanced Mirroring & TAP Aggregation, offering improved network visibility and monitoring. - VM Tracer, Zero Touch Provisioning (ZTP), and Advanced Event Monitoring for simplified network provisioning and management. - sFlow (RFC3176) for detailed network traffic monitoring. The switch is powered by a high-performance x86 CPU and supports up to 16GB of DRAM and 4GB of Flash memory, providing ample resources for running user applications in a virtual machine (VM). This capability allows for flexible deployment of network functions and services directly on the switch. Arista's network operating system is designed to be both modular and efficient, running a single binary image that simplifies management and upgrades. This fine-grained, truly modular OS ensures that the DCS-7280QR-C36 can adapt to the evolving needs of modern data centers, making it a future-proof investment for organizations looking to build or upgrade their network infrastructure. In summary, the Arista DCS-7280QR-C36 is a powerful and flexible networking switch that combines high-capacity connectivity, advanced features for network management and visibility, and efficient and reliable operation. It is an ideal choice for data centers looking to support high-speed data transmission, cloud networking, and next-generation data center architectures.


Model NumberDCS-7280QR-C36
Ports24 x 40GbE QSFP+ & 12 x 100GbE QSFP
Cooling and PowerModular fans and power supply units (PSUs)
Power Cables2 x C13-C14 cables
Packet Buffer CapacityUp to 32GB for deep buffering
Queueing MechanismVirtual Output Queues per port to prevent blocking
Efficiency of Power SuppliesAbove 94% efficiency
Power and Cooling RedundancySupports hot-swappable and redundant fans and power supplies
Cooling DirectionSelectable front-to-rear or rear-to-front airflow
ComplianceNEBS-compliant design
MountingTool-free rail kit for easy mounting
Software FeaturesCloudVision, VXLAN support for modern data centers
Microburst DetectionLANZ technology for identifying microbursts
Network VisibilityDANZ for enhanced mirroring and TAP aggregation
Virtual Machine MonitoringVM Tracer
ProvisioningZero Touch Provisioning (ZTP) for automation
MonitoringAdvanced Event and sFlow (RFC3176) monitoring
ProcessorHigh-performance x86 CPU
MemoryUp to 16GB DRAM
Storage4GB Flash memory
User ApplicationsSupport for running applications within a Virtual Machine (VM)
Software ArchitectureUnified software image with modular OS design

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