Arista DCS-7280CR3K-32P4A-FLX-R | 7280R3 32x100G + 4x400G Switch, FLX, Rear-to-Front

SKU:DCS-7280CR3K-32P4A-FLX-R

Stock Status: Enquire

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Description

The Arista 7280R3 is a 1RU fixed-configuration data centre switch router built for spine, edge and WAN or peering roles where deep buffers and large routing tables matter. This 7280CR3K-32P4A variant is the large-routes model with the FLX licence and rear-to-front airflow, so the fans sit at the port end for hot-aisle port layouts.

It provides 32 x 100GbE QSFP100 ports and 4 x 400GbE OSFP ports, with 4.8 Tbps of throughput (9.6 Tbps full duplex), up to 2 Bpps forwarding and latency from 3.8 us. An eight-core x86 CPU, 64 GB of system memory, a 120 GB SSD and 8 GB of packet buffer support heavy routing workloads. Power comes from two hot-swap 1000W AC supplies in a 1+1 arrangement, with three hot-swap fans in N+1.

The FLX licence provides full routing up to 2M routes, plus EVPN, VXLAN, Segment Routing and advanced MPLS. The 100G ports also handle 40G optics and 50G, 25G or 10G through breakout, and the OSFP ports support 400G optics with breakout. The switch runs Arista EOS, with a minimum release of 4.27.2.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Deep-buffer, high-performance routing for data centre spine, edge and WAN or peering roles
- Large route table support on the K large-routes variant
- Runs Arista EOS, a single-image modular network operating system
- Wire-speed performance on all ports with 1/10/25/40/50/100/200/400G flexibility via optics and breakouts
- FLX licence adds full routing to 2M routes, EVPN, VXLAN, Segment Routing and advanced MPLS
- Hot-swap redundant power supplies and N+1 fans
- Accelerated sFlow support
- Rear-to-front airflow for layouts where the ports face the hot aisle

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

- Ports: 32 x 100GbE QSFP100, 4 x 400GbE OSFP
- Throughput: 4.8 Tbps (9.6 Tbps full duplex)
- Packet forwarding: up to 2 Bpps
- Latency: from 3.8 us
- Packet buffer: 8 GB
- CPU: eight-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Management: 1 x 100/1000 port, 1 x RS-232 serial (RJ-45), 1 x USB
- Power supplies: 2 x hot-swap PWR-1011 1000W AC (1+1), 100-240V AC, 93% efficiency
- Fans: 3 x hot-swap FAN-7011H (N+1)
- Airflow: rear-to-front
- Typical/max power draw: approx. 535-543 W / 851-865 W
- Form factor: 1RU
- Dimensions (W x H x D): 43.99 x 4.37 x 55.83 cm
- Weight: 12.27 kg
- Operating temperature: 0 to 40 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 3,000 m
- Minimum EOS: 4.27.2

FAQs

Q: Which licence does this SKU include?
A: The FLX part number includes the Arista FLX licence for fixed switches. It provides full routing up to 2M routes, EVPN, VXLAN, Segment Routing and advanced MPLS.

Q: What power does it use?
A: It uses two hot-swap PWR-1011 1000W supplies in a 1+1 redundant arrangement on 100-240V AC. Typical draw is about 535-543 W.

Q: What airflow direction does this model have?
A: This SKU is rear-to-front, with the fans on the port side. Use it where the ports face the hot aisle. The matching spares are PWR-1011-AC-BLUE and the FAN-7011H-R fan module.

Q: What can the 400G OSFP ports run?
A: The four OSFP ports accept 400G OSFP optics and DACs and support breakout. The 32 QSFP100 ports run 100G and 40G (QSFP+), and 50G, 25G or 10G via breakout.

Q: How does this differ from other 7280R3 SKUs?
A: This is the K large-routes model with the eight-core 32P4A CPU, the FLX licence, rear-to-front airflow and two AC power supplies.