• Stack of five silver arista dcs-7280cr3-32p4-m network switches with ethernet ports and blue accent lighting
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Arista

Arista DCS-7280CR3-32P4-M | 7280R3 32-Port 100G Switch, 4x 400G OSFP, 4.8Tbps

DCS-7280CR3-32P4-M

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Description

The Arista DCS-7280CR3-32P4-M is a high-performance 1RU data center switch router designed for cloud-scale environments and large enterprise networks. It delivers 32 ports of 100 Gigabit QSFP connectivity and 4 ports of 400 Gigabit OSFP uplinks with 4.8Tbps throughput and 8GB packet buffer memory. Built with expanded memory for large routing tables and configurable power supplies and fans, this switch excels in spine-leaf architectures, internet peering, and data center interconnect applications.

Features

Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking for lossless forwarding
- Comprehensive Layer 2 and Layer 3 switch router with BGP, OSPF, IS-IS, and 512-way ECMP
- MPLS support including LDP, RSVP-TE, and Segment Routing for carrier-grade deployments
- VXLAN and EVPN for cloud data center virtualization and multi-tenancy
- TunnelSec with line-rate MACsec, IPsec, and VXLANsec AES-256-GCM encryption
- Algorithmic ACLs for scalable access control with 100K+ rules without hardware expansion
- Inband Network Telemetry (INT) for per-flow latency, congestion, and path monitoring
- IEEE 1588v2 Precision Time Protocol (PTP) with Synchronous Ethernet for telecom timing
- Accelerated sFlow and IPFIX for high-capacity network security and traffic analysis
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 redundancy
- Hot-swappable redundant power supplies and fan modules for continuous operation
- Arista EOS with Linux-based programmability, Python scripting, and open APIs
- CloudVision integration for network-wide automation, visibility, and telemetry streaming
- Zero Touch Provisioning (ZTP) for automated deployment and configuration

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: 32 x 100GbE QSFP28 ports, 4 x 400GbE OSFP ports
- Switching Capacity: 4.8 Tbps wire-speed performance
- Forwarding Rate: 2 Bpps (billion packets per second)
- Packet Buffer: 8GB dynamic deep buffer memory
- Latency: 3.8 microseconds (store-and-forward)
- MAC Address Table: Up to 768,000 entries
- Routing Support: Over 256K IPv4 routes, MPLS, VXLAN, Segment Routing, EVPN
- Management: Arista EOS with CLI, REST API, NETCONF, SNMP, Zero Touch Provisioning
- Airflow: Configurable front-to-rear or rear-to-front with hot-swappable fans
- Power: Configurable hot-swappable redundant power supplies (1+1)
- Form Factor: 1RU rack-mountable
- Operating Temperature: 0°C to 40°C
- Certifications: RoHS, CE, FCC

FAQs

Q: What is the difference between the DCS-7280CR3-32P4-M and standard 7280CR3-32P4 models?
A: The -M suffix indicates expanded memory configuration, providing support for over 256K routing table entries compared to standard models. This makes it ideal for internet peering, edge routing, and large-scale Layer 3 deployments requiring extensive route tables.

Q: Can this switch be used in both spine and leaf roles?
A: Yes, the DCS-7280CR3-32P4-M is designed as a universal leaf-spine platform. Its 32 x 100G ports work well as leaf uplinks or spine downlinks, while the 4 x 400G OSFP ports provide high-capacity spine uplinks or data center interconnect.

Q: What optics are supported on the 400G OSFP ports?
A: The OSFP ports support native 400G optics as well as flexible breakout configurations including 4 x 100G and 2 x 200G modes. Arista provides a wide range of compatible transceivers for both short-reach and long-haul data center interconnect applications.

Q: Does this model require a software license?
A: Arista EOS is included with the hardware purchase. Advanced features such as CloudVision integration, VXLAN, and EVPN are available depending on the subscription tier. Contact your Arista representative for licensing details specific to your deployment.

Q: What is the typical power consumption of this switch?
A: Typical power consumption is approximately 450W under normal operating conditions. Actual consumption varies based on port utilization, optics installed, and ambient temperature. The configurable PSU option allows selection of appropriate power capacity for your environment.

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