Arista DCS-7280DR3A-54-F | 7280R3A 54-Port 400G QSFP-DD Switch, Front-to-Rear

SKU:DCS-7280DR3A-54-F

Stock Status: Enquire

Request Quote

Sale Sold out

Shipping calculated at checkout.

20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

The Arista 7280R3A is a 2RU fixed data centre switch router built for cloud-scale leaf and spine fabrics, service provider edge and core transport, and large enterprise data centre networks. This DCS-7280DR3A-54-F model is the standard R3A variant, with no encryption, front-to-rear airflow and two AC power supplies.

It provides 54 wire-speed 400G QSFP-DD ports, which can break out to 216 x 100G or up to 348 x 25/10G interfaces, plus 2 OSFP-LS ports for line systems. Throughput is 21.6 Tbps (43.2 Tbps full duplex) at 8.1 Bpps, with latency from 3.8 us and a 24 GB packet buffer. Power comes from two hot-swap PWR-3001 AC supplies in a 1+1 arrangement, with four hot-swap fans in an N+1 arrangement. It draws 933 W typical and 1715 W maximum, excluding transceivers.

The switch runs Arista EOS 4.29.1 or later and is a Group 5 platform, so optional feature licences use the LIC-FIX-5 family. It accepts QSFP-DD 400G optics as well as QSFP56, QSFP28 and QSFP+ with breakout cabling, and supports 400ZR/ZR+ optics.

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

Features

- Up to 54 ports of wire-speed 400G in 2RU
- Deep 24 GB packet buffer with Virtual Output Queues to avoid head-of-line blocking
- 400G ZR/ZR+ support and dedicated OSFP-LS ports for dense DWDM
- PTP (IEEE 1588) and Synchronous Ethernet precision timing
- Arista EOS with CloudVision, EVPN-VXLAN, LANZ microburst detection, ZTP and accelerated sFlow
- Open programmable APIs including JSON-RPC, NETCONF and the EOS SDK
- Up to 384K MAC addresses and algorithmic ACLs for 400K+ rules
- Carrier-grade routing including LDP, RSVP-TE, SR-TE, TI-LFA and FRR
- Redundant hot-swap power 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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Ports: 54 x 400G QSFP-DD
- OSFP-LS ports: 2
- Maximum 100G ports: 216
- Maximum 50G ports: 348
- Maximum 40G ports (using QSFP+): 54
- Maximum 25/10G ports: 348
- Maximum total interfaces: 348
- Throughput: 21.6 Tbps (43.2 Tbps full duplex)
- Packet forwarding: 8.1 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 24 GB
- CPU: eight-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Management: 1 x 100/1000 port, 1 x RS-232 RJ-45 serial, 1 x USB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Encryption: none
- Power supplies: 2 x PWR-3001 AC, 3000 W, 200-240 VAC, 1+1 redundant, hot-swap
- Fans: 4 x hot-swap, N+1 redundant, FAN-7012H tray
- Airflow: front to rear
- Typical / maximum power draw: 933 W / 1715 W (excluding transceivers)
- Rack units: 2RU
- Dimensions (W x H x D) including handles: 43.99 x 8.79 x 76.39 cm
- Weight: 27.94 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.29.1

FAQs

Q: Does this switch support MACsec or encryption?
A: No. DCS-7280DR3A-54-F is the standard R3A model with no encryption. MACsec and TunnelSec are features of the R3AM and R3AK models.

Q: What feature licences does it use?
A: It runs Arista EOS and is a Group 5 fixed switch, so optional licences come from the LIC-FIX-5 family, such as LIC-FIX-5-E for enhanced L3 and LIC-FIX-5-Z for monitoring and automation.

Q: What power supplies does it use?
A: It uses two PWR-3001 AC supplies in a 1+1 redundant arrangement, each rated at 3000 W for 200-240 VAC. Typical draw is 933 W and maximum 1715 W, excluding transceivers.

Q: Can the 400G ports run at lower speeds?
A: Yes. The QSFP-DD ports accept QSFP56, QSFP28 and QSFP+ optics, and breakout cabling provides 200G, 100G, 50G, 40G, 25G and 10G connectivity, up to 348 interfaces in total.

Q: What airflow direction does this model have?
A: Front-to-rear airflow, using four hot-swap fans in an N+1 arrangement (FAN-7012H tray).

Q: What EOS version is required?
A: This platform requires Arista EOS 4.29.1 or later.