• Gray metal arista dcs-7280cr3mk-32p4s-r network switch with 32 ports 100g 4x 400g osfp and ventilation slots
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Arista

Arista DCS-7280CR3MK-32P4S-R | 7280R3 32-Port 100G Switch, 4x 400G OSFP, MACsec

DCS-7280CR3MK-32P4S-R

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Description

The Arista DCS-7280CR3MK-32P4S-R is a 1RU data center switch router delivering 4.8 Tbps wire-speed performance with 32x 100GbE QSFP ports and 4x 400GbE OSFP uplinks. Featuring hardware-accelerated MACsec encryption, 8GB deep buffer architecture, and large routing table support for over 256K routes, this switch is engineered for high-performance cloud data centers, service provider networks, DCI deployments, and IP storage environments. Built on Arista EOS with FlexRoute technology, it supports advanced L2/L3 forwarding, VXLAN, MPLS, and comprehensive network telemetry.

Features

Wire-speed L2 and L3 forwarding with non-blocking architecture
- Dynamic deep buffer Virtual Output Queue (VOQ) eliminating head-of-line blocking
- FlexRoute engine for Internet-scale routing with flexible forwarding profiles
- Hardware-accelerated MACsec, IPsec, and VXLANsec encryption at line rate
- EVPN-VXLAN overlay networking with gateway capabilities
- MPLS and Segment Routing for service provider applications
- Comprehensive Layer 2 features: VLANs, STP/RSTP/MSTP, MLAG, LACP
- Advanced Layer 3 routing: BGP, OSPF, IS-IS, ECMP, VRF-lite
- Algorithmic ACLs for high-scale policy-based forwarding
- Accelerated sFlow and IPFIX for network telemetry at full line rate
- Inband Network Telemetry (INT) for per-flow monitoring and deep visibility
- Precision Time Protocol (PTP) IEEE 1588v2 for accurate timing
- QoS: 8 egress queues per port, WRED, strict priority, weighted fair queuing
- Comprehensive security: 802.1X, RADIUS, TACACS+, SSH, SNMPv3
- Arista CloudVision integration for centralized management and automation
- Zero Touch Provisioning (ZTP) and REST API for programmable infrastructure

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

32x 100GbE QSFP ports supporting 100G, 40G, and breakout to 4x 25G or 4x 10G on alternate ports
- 4x 400GbE OSFP/QSFP-DD ports for flexible capacity expansion with both 100G and 400G optics
- Switching capacity: 4.8 Tbps wire-speed, 2 Bpps forwarding rate
- Deep packet buffer: 8GB using dynamic VOQ architecture for lossless forwarding
- Routing scale: Over 256K IPv4/IPv6 routes with FlexRoute engine, up to 5M routes with flexible profiles
- MAC address table: 768,000 entries
- Latency: Ultra-low starting from 3.8 microseconds
- Line-rate MACsec encryption: AES-256-GCM, supporting TunnelSec, IPsec, and VXLANsec
- Memory: x86 control-plane CPU with ECC-protected system memory and internal flash/SSD storage
- Management: Arista EOS, CLI, Web UI, SNMP, REST API, CloudVision integration
- Airflow: Rear to front (port-side exhaust), 2x AC power supplies
- Redundancy: 1+1 hot-swappable power supplies, N+1 hot-swappable fans
- Form factor: 1RU rack-mountable chassis
- Certifications: NEBS compliant, industry standard safety and EMC certifications

FAQs

Q: What encryption capabilities does the DCS-7280CR3MK-32P4S-R support?
A: This model supports line-rate AES-256-GCM hardware encryption using Arista TunnelSec technology, including IEEE 802.1AE MACsec for point-to-point link encryption, IPsec for layer 3 tunnels, and VXLANsec for overlay network encryption, all at full wire speed with no performance impact.

Q: Can the 400GbE OSFP ports be used with 100GbE optics?
A: Yes, the 4x 400GbE OSFP/QSFP-DD ports support backward compatibility with 100GbE QSFP optics and can also support 200GbE configurations, providing flexible capacity expansion options for various deployment scenarios.

Q: What are typical deployment scenarios for this switch?
A: The DCS-7280CR3MK-32P4S-R is ideal for data center spine and leaf architectures, high-performance storage networks, service provider edge and peering applications, data center interconnect with encryption requirements, content delivery networks, and cloud infrastructures requiring lossless forwarding and deep buffers for incast traffic patterns.

Q: Does this model require additional software licensing?
A: The switch runs Arista EOS with comprehensive L2/L3 features included. Advanced features like large routing tables, MACsec, and FlexRoute profiles are built into the hardware platform. CloudVision portal integration may require separate subscription licensing depending on deployment requirements.

Q: What redundancy and high availability features are included?
A: The switch includes 1+1 redundant hot-swappable AC power supplies, N+1 redundant hot-swappable fans with dynamic temperature control, ECC-protected memory, hitless software upgrades, and comprehensive hardware monitoring. It supports MLAG for active-active L2 topologies and ECMP for resilient L3 designs.

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