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Arista DCS-7280CR3K-36A-F Switch Router, 36x100GbE QSFP Main Ports and 2x400GbE Uplinks, Large Routes, Front to Rear Airflow, 2 x AC PSU REF

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MPN:
DCS-7280CR3K-36A-F
Condition:
Refurbished
Shipping:
Calculated at Checkout
$39,999.00
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Description

Arista DCS-7280CR3K-36A-F Switch Router, 36x100GbE QSFP Main Ports and 2x400GbE Uplinks, Large Routes, Front to Rear Airflow, 2 x AC PSU

Overview

The Arista DCS-7280CR3K-36A-F is a high-performance, fixed-configuration switch from the Arista 7280R3 Series, optimized for data centers and service provider networks requiring advanced routing capabilities, deep packet buffering, and high-speed port densities. It is designed for high-performance environments, offering robust Layer 2 and Layer 3 switching, with flexible 100GbE and 400GbE interfaces. This switch is ideally suited for cloud, content delivery, and high-frequency trading environments where performance and scalability are crucial.

The Arista DCS-7280CR3K-36A-F is a high-density, high-performance 400GbE switch designed for data centers, cloud networks, and service providers. It offers 36 QSFP-DD ports capable of supporting 400GbE, 100GbE, and breakout configurations for 50/25/10GbE. With a switching capacity of 28.8 Tbps, robust Layer 2/3 functionality, advanced security, and automation capabilities, it is an ideal choice for high-performance, scalable networking environments.

Specifications

  • Model: Arista DCS-7280CR3K-36A-F **Refurbished
  • Series: Arista 7280R3 Series
  • Type: Fixed-configuration, high-performance data center switch
  • Form Factor: 2 RU (Rack Unit)
  • Airflow: Front-to-back airflow (denoted by the -F in the model number).
  • 2. Interfaces and Ports
  • 36 x 400GbE QSFP-DD ports:
  • Each QSFP-DD port can operate at 400GbE or be broken down into smaller bandwidths using breakout cables:
  • 4x100GbE (using 4x100GbE breakout cables)
  • 8x50GbE (using 8x50GbE breakout cables)
  • 4x25GbE or 10GbE (using 4x25GbE or 4x10GbE breakout cables).
  • Provides flexible port configurations for high-density, high-speed connectivity.
  • Management Ports:
  • 1 x 10/100/1000 management RJ45 Ethernet port.
  • 1 x USB 2.0 Type-A port.
  • 1 x RJ45 console port.
  • 3. Performance
  • Switching Capacity: 28.8 Tbps (terabits per second).
  • Forwarding Rate: 11.2 Bpps (billion packets per second).
  • Latency: Ultra-low latency, typically sub-microsecond, optimized for high-performance and latency-sensitive applications such as high-frequency trading.
  • Packet Buffer: 64 MB of packet buffer shared across all ports to handle traffic bursts.
  • MAC Address Table: Supports up to 288,000 MAC addresses.
  • 4. Layer 2 and Layer 3 Features
  • Layer 2 Features:
  • VLAN Support: Up to 4,000 VLANs with IEEE 802.1Q VLAN tagging.
  • Spanning Tree Protocols: STP, RSTP, and MSTP support for loop prevention and redundancy.
  • Link Aggregation: Supports IEEE 802.3ad LACP for bundling multiple physical links into one logical link.
  • Jumbo Frames: Supports jumbo frames with an MTU of up to 9,216 bytes for larger data packets.
  • Layer 3 Features:
  • Full support for IPv4 and IPv6 routing.
  • Dynamic Routing Protocols: Supports OSPF, BGP, IS-IS, and RIP.
  • Multicast Routing: PIM-SM, PIM-DM, PIM-SSM, and IGMP snooping for multicast traffic management.
  • Equal-Cost Multi-Path (ECMP): Supports up to 128-way ECMP routing for load balancing and redundancy.
  • Virtual Routing and Forwarding (VRF-lite): Provides network segmentation for creating multiple virtual routing instances.
  • VXLAN: Supports Virtual Extensible LAN for network virtualization, allowing Layer 2 extensions over Layer 3 infrastructure.
  • 5. Quality of Service (QoS)
  • Traffic Prioritization: Supports 8 hardware queues per port for prioritizing critical traffic.
  • Traffic Shaping and Policing: Provides advanced traffic management features to ensure efficient use of bandwidth.
  • Congestion Management: Supports congestion avoidance features such as Weighted Random Early Detection (WRED) and Explicit Congestion Notification (ECN).
  • Data Center TCP (DCTCP): Optimized for low-latency environments and helps to reduce network congestion.
  • 6. Security Features
  • Access Control Lists (ACLs): Provides Layer 2, Layer 3, and Layer 4 ACLs for controlling traffic based on source/destination, protocol, and other parameters.
  • Dynamic ARP Inspection (DAI): Protects against ARP spoofing attacks by validating ARP requests and responses.
  • DHCP Snooping: Prevents rogue DHCP servers from assigning incorrect IP addresses.
  • IP Source Guard: Prevents IP address spoofing by ensuring that only authorized IP addresses can access the network.
  • AAA Support: Provides integration with RADIUS and TACACS+ for secure user authentication and authorization.
  • 7. Network Management and Monitoring
  • Command Line Interface (CLI): Provides a full-featured CLI for configuration, troubleshooting, and management.
  • Zero Touch Provisioning (ZTP): Automates the initial setup of the switch, simplifying deployment in large-scale environments.
  • SNMP: Supports SNMP v1, v2, and v3 for remote network management and monitoring.
  • sFlow: Provides real-time traffic monitoring and flow analysis for performance visibility.
  • Telemetry: Offers streaming telemetry for real-time network performance and monitoring.
  • Arista EOS: Runs on Arista's Extensible Operating System (EOS), which is fully programmable and provides APIs for automation.
  • 8. Stacking and Redundancy
  • Multi-Chassis Link Aggregation (MLAG): Provides redundancy without the need for physical stacking cables, allowing for link aggregation across multiple switches.
  • Redundant Power Supplies: Supports dual hot-swappable, redundant power supplies to ensure high availability.
  • Hot-Swappable Fans: Hot-swappable, redundant fan trays ensure continued cooling even in case of fan failure.
  • 9. Power and Cooling
  • Power Supply:
  • Dual hot-swappable, redundant power supplies for uninterrupted operations.
  • Power Options: Available in both AC and DC power supplies.
  • Typical power consumption: Approximately 900W, depending on the configuration and traffic load.
  • Cooling:
  • Front-to-back airflow ensures optimal cooling for data center deployments with hot aisle/cold aisle configurations.
  • Hot-swappable, redundant fan trays provide efficient cooling and maintain system reliability.
  • 10. Environmental Specifications
  • Operating Temperature: 0°C to 40°C (32°F to 104°F).
  • Storage Temperature: -40°C to 70°C (-40°F to 158°F).
  • Operating Humidity: 5% to 95% non-condensing.
  • Acoustic Noise: Typically less than 70 dBA under full load conditions.
  • 11. Compliance and Certifications
  • RoHS Compliance: Fully compliant with the Restriction of Hazardous Substances (RoHS) directive.
  • Safety Certifications: UL, CSA, CE, IEC/EN, and other global certifications.
  • EMI/EMC Compliance: Meets international standards for electromagnetic emissions and susceptibility, including FCC, CE, and EN certifications.
  • 12. Use Cases
  • Data Center Spine and Leaf: Ideal for use in spine or leaf roles in modern data centers that require high-speed, low-latency, and high-density 400GbE connectivity.
  • Cloud and Service Provider Networks: Optimized for large-scale cloud networks and service providers needing flexible, scalable network infrastructure.
  • Content Delivery Networks (CDN): Well-suited for environments that demand high bandwidth and low-latency networking to deliver rich content across the globe.
  • High-Frequency Trading: Provides ultra-low latency and high performance, making it suitable for financial markets and high-frequency trading applications.
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Contact

WARRANTY:
365 days
CALL:
877-263-8436
E-MAIL:
sales@networkgenetics.net
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