• Gray metal arista dcs-7280cr3k-32p4-flx-f switch with 32x 100g qsfp28 ports and ventilation slots visible on the back side
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Arista

Arista DCS-7280CR3K-32P4-FLX-F | 7280R3 Switch, 32x 100G QSFP28, 4x 400G OSFP, 4.8Tbps

DCS-7280CR3K-32P4-FLX-F

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Description

The Arista DCS-7280CR3K-32P4-FLX-F is a high-performance 1RU data center switch router delivering 4.8 Tbps non-blocking throughput with 32x 100GbE QSFP28 ports and 4x 400GbE OSFP ports. Built with an 8GB deep packet buffer VOQ architecture and FlexRoute scalability supporting over 256K routes with MPLS, VXLAN, EVPN, and Segment Routing, it is optimized for cloud-scale data centers, service provider networks, and high-performance computing environments. Front-to-rear airflow and dual AC power supplies ensure efficient cooling and redundancy.

Features

Full Layer 2/3 switch router with BGP, OSPF, IS-IS routing protocols
- MPLS support: LDP, RSVP-TE, BGP Labeled Unicast
- Segment Routing with Traffic Engineering (SR-TE)
- EVPN and VXLAN for data center overlay networks
- 512-way ECMP for load balancing and redundancy
- Virtual Output Queue (VOQ) architecture eliminating head-of-line blocking
- 8 GB deep packet buffer for burst absorption and lossless forwarding
- Algorithmic ACLs supporting 100K+ rules with flexible pattern matching
- Precision timing: PTP (IEEE 1588v2), SyncE
- Advanced telemetry: LANZ (latency analysis), Accelerated sFlow, DANZ (tap aggregation)
- CloudVision integration for centralized management and automation
- Zero Touch Provisioning (ZTP) for automated deployment
- MLAG (Multi-Chassis Link Aggregation) for active-active topologies
- In-service software upgrades with stateful fault repair
- Redundant hot-swappable power supplies and fan trays
- Supports wide range of 1G to 400G pluggable optics and DAC/AOC cables

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 QSFP28 ports with breakout support to 50G, 40G, 25G, and 10G
- 4x 400GbE OSFP ports supporting 400G, 200G, and 100G line rates
- Switching capacity: 4.8 Tbps non-blocking, 2 Bpps forwarding rate
- 8 GB deep packet buffer with Virtual Output Queue (VOQ) architecture
- Latency: 3.8 microseconds store-and-forward
- FlexRoute with 256K+ IPv4/IPv6 routes (FLX license), MPLS, VXLAN, Segment Routing, EVPN
- Quad-core x86 CPU, 64 GB DRAM, 120 GB SSD
- Operating system: Arista EOS with CloudVision support
- Front-to-rear airflow, 2x hot-swappable AC power supplies (PWR-1511)
- Power consumption: 650W typical, 1100W maximum
- Dimensions: 17.3 x 1.72 x 22.6 in (43.99 x 4.37 x 57.4 cm), 1RU
- Weight: 28 lbs (12.7 kg)

FAQs

Q: What is the difference between the CR3K and CR3 variants?
A: The CR3K variant includes FlexRoute scalability supporting over 256K routes and larger routing tables, making it suitable for Internet peering and carrier-grade deployments. The CR3 models have standard routing scale.

Q: Does this model include a software license?
A: Yes, the FLX suffix indicates this model includes a FlexRoute FLX-Lite license supporting up to 256K routes with EVPN, VXLAN, Segment Routing, and base MPLS LSR functionality. Advanced MPLS LER/LSR and 2M+ route scale require the FLX license upgrade.

Q: Can the 100G QSFP28 ports be used with lower-speed transceivers?
A: Yes, the QSFP28 ports support breakout configurations to 50G, 40G (QSFP+), 25G, and 10G transceivers. The 400G OSFP ports also support 200G and 100G optics.

Q: What does the -F suffix indicate?
A: The -F suffix denotes front-to-rear (port-side exhaust) airflow. For rear-to-front airflow configurations, refer to the -R variant. This ensures compatibility with your data center hot/cold aisle design.

Q: Is this switch suitable for spine or leaf deployments?
A: Yes, the 7280CR3K-32P4 is designed for both spine and leaf roles in modern data center fabrics. Its deep buffers, high port density, and advanced routing features make it ideal for large-scale EVPN-VXLAN, MPLS, and IP peering networks.

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