Arista DCS-7280CR3AK-24D12-FLX-F | 7280R3A 24x100G + 12x400G Switch, R3AK, FLX, Front-to-Rear

SKU:DCS-7280CR3AK-24D12-FLX-F

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Description

The Arista 7280R3A is a 1RU fixed data centre switch router built for Internet peering, carrier edge, data centre interconnect and large EVPN designs. This R3AK model pairs large routing and policy tables with line-rate TunnelSec encryption (MACsec, IPsec and VXLANsec) on all ports.

It provides 24 x 100GbE QSFP100 ports and 12 x 400GbE QSFP-DD ports, with breakout support up to 72 x 100G or 116 x 50G/25G/10G. Throughput is 7.2 Tbps (14.4 Tbps full duplex) at 2.7 Bpps, with latency from 3.8 us and 8 GB of packet buffer. This SKU has front-to-rear airflow, 2 x hot-swap AC power supplies (1+1) and the FLX licence tier, and runs Arista EOS with Group 4 fixed-switch licensing.

It works with QSFP, QSFP-DD and 10G to 400G optics, including breakout cabling. PTP and SyncE precision timing with OCXO and PPS/10M/ToD inputs make it suitable for timing-sensitive carrier and service provider networks.

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

Features

- FlexRoute engine for Internet-scale hardware routing, supporting over 5M IPv4 routes on the R3AK model
- Line-rate TunnelSec encryption (MACsec, IPsec, VXLANsec) on all ports
- Deep per-port buffers with Virtual Output Queues to avoid head-of-line blocking
- EVPN-VXLAN, segment routing and MPLS support
- PTP and SyncE precision timing
- LANZ microburst detection, Zero Touch Provisioning and Accelerated sFlow
- Open programmable APIs (JSON-RPC, NETCONF) and CloudVision integration
- Redundant hot-swap power supplies and fans, designed for NEBS

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: 24 x 100GbE QSFP100, 12 x 400GbE QSFP-DD
- Form factor: 1RU fixed
- Max 400G ports: 12
- Max 100G ports: 72
- Max 50G ports: 116
- Max 40G ports (using QSFP+): 36
- Max 25/10G ports: 116
- Throughput: 7.2 Tbps (14.4 Tbps full duplex)
- Packets per second: 2.7 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 8 GB
- System memory: 64 GB
- CPU: eight-core x86
- SSD storage: 480 GB
- Encryption: all ports (TunnelSec)
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap AC (1+1 redundant), PWR-1511-AC 1500 W
- Fans: 3 x hot-swap (N+1), FAN-7011H
- Airflow: front to rear
- Typical / maximum power draw: 346 W / 845 W
- Dimensions (W x H x D): 43.99 x 4.37 x 59.2 cm
- Weight: 14.79 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: What licensing does this SKU use?
A: It runs Arista EOS (minimum 4.31.1) with Group 4 fixed-switch licensing and the FLX licence tier. Encryption licences such as LIC-FIX-4-MACSEC and LIC-FIX-4-ENCR are separate EOS licences.

Q: What power supplies does it use?
A: It has two hot-swap AC power supplies in a 1+1 arrangement (PWR-1511-AC, 1500 W, 200-240 VAC). Typical power draw is 346 W and maximum is 845 W, excluding transceivers.

Q: Which optics and accessories work with it?
A: It supports QSFP, QSFP-DD and 10G to 400G optics, including breakout cabling. Spares are FAN-7011H-F/-R fan modules and PWR-1511-AC/DC power supplies, and rack kits KIT-7101-D, KIT-7101-RK, KIT-7101-LD-RK and KIT-ADJ-RLR are available.

Q: How does the R3AK model differ from the standard 7280R3A?
A: The R3AK adds large routing and policy tables plus line-rate TunnelSec encryption on all ports, making it suited to Internet peering, carrier edge and large EVPN deployments.

Q: Which airflow direction does this SKU have?
A: The -F suffix indicates front-to-rear airflow. Rear-to-front airflow is available on a separate SKU.