Arista DCS-7280DR3AK-54-DC-F | 7280R3A 54-Port 400G QSFP-DD Switch, DC, Front-to-Rear

SKU:DCS-7280DR3AK-54-DC-F

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Description

The Arista 7280R3A is a 2RU fixed-configuration data centre and service provider switch router, and this R3AK model is the Large Scale variant with TunnelSec encryption. It suits large-scale Layer 2 and Layer 3 cloud and enterprise data centres, spine and leaf fabrics, Internet peering, carrier edge VPN services, metro EVPN and encrypted data centre interconnect. The DC power option also suits telco, NEBS and central-office environments.

It provides 54 QSFP-DD ports, each running at up to 400G, with breakout options for up to 216 x 100G, 348 x 50G or 348 x 25/10G interfaces. Throughput is 21.6 Tbps (43.2 Tbps full duplex) at 8.1 Bpps with latency from 3.8 us. A 24 GB packet buffer, 64 GB of system memory, a 120 GB SSD and an eight-core x86 CPU support deep-buffered, high-scale routing, with over 5M IPv4 routes on the R3AK model. Power comes from two hot-swap PWR-3001 DC supplies in a 1+1 arrangement, with four hot-swap fans in an N+1 arrangement and front-to-rear airflow.

The switch runs Arista EOS, minimum version 4.29.1, and supports 400G ZR and ZR+ optics, two OSFP-LS ports, and PTP and SyncE precision timing. It pairs with FAN-7012H fan modules and PWR-3001 DC power supplies.

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

Features

- Wire-speed 10G to 400G encryption with TunnelSec (MACsec, IPsec and VXLANsec)
- 400G ZR and ZR+ optics support plus dedicated OSFP Line System ports
- Synchronous Ethernet and IEEE 1588 PTP precision timing
- Deep 24 GB packet buffer with Virtual Output Queues to avoid head-of-line blocking
- Over 5M IPv4 routes, up to 384K MAC addresses and algorithmic ACLs for 400K+ rules
- Carrier-grade routing including LDP, RSVP-TE, SR-TE, FRR, TI-LFA and EVPN-VXLAN
- Redundant hot-swap DC power supplies and fans, designed for NEBS
- Arista EOS with CloudVision, LANZ microburst detection, ZTP, Accelerated sFlow, JSON-RPC and NETCONF

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

- Model: 7280DR3AK-54
- Ports: 54 x QSFP-DD
- Maximum 400G ports: 54
- Maximum 100G ports: 216
- Maximum 50G ports: 348
- Maximum 25/10G ports: 348
- Maximum 40G ports (using QSFP+): 54
- Throughput: 21.6 Tbps (43.2 Tbps full duplex)
- Packets per second: 8.1 Bpps
- Latency: from 3.8 us
- CPU: eight-core x86
- System memory: 64 GB
- Packet buffer memory: 24 GB
- SSD storage: 120 GB
- OSFP-LS ports: 2
- Management: 1 x 100/1000 port, 1 x RJ-45 RS-232 console, 1 x USB
- Encryption: TunnelSec on all ports
- Power supplies: 2 x hot-swap PWR-3001 DC, 1+1 redundant
- PWR-3001 DC input: -48 to -60 VDC, 3000 W output, 94% efficiency
- Fans: 4 x hot-swap FAN-7012H, N+1 redundant
- Airflow: front to rear
- Typical / maximum power draw: 933 W / 1715 W, excluding transceivers
- Size (WxHxD) including handles: 43.99 x 8.79 x 76.39 cm, 2RU
- Weight: 27.94 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.29.1

FAQs

Q: What software does the 7280R3AK run, and does it need a licence?
A: It runs Arista EOS, minimum version 4.29.1, and is listed under EOS Feature Licence Group 5. The R3AK model includes large-route-scale and TunnelSec encryption capability in hardware.

Q: What power supplies does this model use?
A: It uses two hot-swap PWR-3001 DC supplies in a 1+1 redundant arrangement. Each accepts -48 to -60 VDC and delivers 3000 W through an SAF-D input connector.

Q: How does the -DC-F version differ from other 7280R3A SKUs?
A: This SKU is the R3AK Large Scale model with TunnelSec encryption, DC power and front-to-rear airflow. Other SKUs in the range differ by scale, encryption capability, power type or airflow direction.

Q: Which optics and modules does it work with?
A: It accepts 1G to 400G pluggable optics and cables in QSFP, QSFP-DD and OSFP form factors, including 400G ZR and ZR+ and 40G QSFP+. Fan modules are FAN-7012H and power supplies are PWR-3001 DC.

Q: Does it support encryption?
A: Yes. The R3AK model supports TunnelSec on all ports, providing wire-speed MACsec, IPsec and VXLANsec encryption.