• Gray metal arista dcs-7280cr3k-32d4-f network switch with 32 100g ports ventilation slots for data centers
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Arista

Arista DCS-7280CR3K-32D4-F | 7280R3 32-Port 100G Switch, 4x 400G QSFP-DD

DCS-7280CR3K-32D4-F

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Description

The Arista DCS-7280CR3K-32D4-F is a high-performance 1RU data center switch router designed for cloud-scale deployments, content delivery networks, and IP storage environments. Featuring 32 ports of 100GbE QSFP28 and 4 ports of 400GbE QSFP-DD with 4.8 Tbps throughput and 8GB deep buffer architecture, this K-variant model supports over 5 million IPv4 routes via FlexRoute for Internet-scale peering. Front-to-rear airflow with dual redundant AC power supplies ensures optimal thermal management in densely populated data centers.

Features

Layer 2 and Layer 3 switching with full routing protocol support
- Virtual Output Queue (VOQ) architecture eliminates head-of-line blocking
- 8GB deep packet buffer for lossless forwarding and congestion management
- FlexRoute Engine for Internet-scale routing (5M+ IPv4/IPv6 routes)
- VXLAN routing and EVPN for network virtualization
- 512-way ECMP for load balancing and redundancy
- Multi-Chassis Link Aggregation (MLAG) for active-active topologies
- Algorithmic ACLs for scalable access control (100K+ rules)
- Accelerated sFlow and IPFIX for network telemetry
- Inband Network Telemetry (INT) for per-flow monitoring
- Precision timing with PTP and SyncE support
- Hot-swappable power supplies and fans with N+1 redundancy
- Zero-Touch Provisioning (ZTP) for automated deployment
- CloudVision integration for centralized management
- Arista EOS modular operating system with in-service software updates
- Standards-based interoperability with IEEE 802.1AE MACsec support

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: 32x 100GbE QSFP28 ports, 4x 400GbE QSFP-DD ports
- Switching Capacity: 4.8 Tbps throughput, 2 Bpps forwarding rate
- Packet Buffer: 8GB deep buffer with Virtual Output Queue (VOQ) architecture
- Latency: Ultra-low 3.8µs store-and-forward latency
- Routing Scale: Over 5M IPv4 routes, 5M IPv6 routes (FlexRoute K-variant)
- MAC Address Table: 736,000 entries
- System Memory: 64GB DRAM, 120GB SSD, x86 quad-core CPU
- Form Factor: 1RU rack-mountable, 48.3 x 4.4 x 55.8 cm, 12.3 kg
- Airflow: Front-to-rear airflow (-F suffix)
- Power Supplies: Dual hot-swappable 1000W AC power supplies (redundant 1+1)
- Management: Arista EOS, CLI, REST API, SNMP, CloudVision integration
- Certifications: IEEE, NEBS, RoHS compliant

FAQs

Q: What is the difference between the CR3K and CR3 variants?
A: The CR3K variant includes enhanced FlexRoute capabilities supporting over 5 million IPv4 routes with 64GB DRAM and 120GB SSD, making it ideal for Internet-scale peering and service provider applications. Standard CR3 models have lower routing scale.

Q: Can the 100G ports be broken out to lower speeds?
A: Yes, the QSFP28 ports support breakout configurations including 4x25G, 4x10G, and 2x50G, allowing flexible deployment options for mixed-speed environments up to 96 total interfaces.

Q: What does the -F suffix indicate?
A: The -F suffix denotes front-to-rear airflow, where cool air enters through the non-port side and exhausts from the port side. For rear-to-front airflow deployments, the -R variant is available.

Q: Is this switch suitable for VXLAN and EVPN deployments?
A: Yes, the 7280R3 series provides full support for VXLAN routing, EVPN, Layer 3 ECMP, and network virtualization with deep buffer architecture ideal for lossless forwarding in overlay networks.

Q: What routing protocols are supported?
A: The switch supports BGP, OSPF, IS-IS, MPLS (LDP, RSVP-TE, BGP LU), Segment Routing (SR-TE), EVPN, VXLAN, and 512-way ECMP for comprehensive Layer 3 routing capabilities.

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