Arista DCS-7280DR3AK-36-DC-F | 7280R3A 36-Port 400G Switch, TunnelSec, 2x DC PSU

SKU:DCS-7280DR3AK-36-DC-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-configuration data centre switch router with 36 x 400G QSFP-DD ports. It suits spine and leaf roles in large-scale data centre and cloud networks, Internet peering, and carrier core or edge routing. The R3AK variant adds large route scale and line-rate TunnelSec encryption, which makes it a fit for secure DCI and WAN links and for deep-buffer workloads.

The 36 QSFP-DD ports deliver 14.4 Tbps of wire-speed capacity (28.8 Tbps FDX) and 5.4 Bpps of packet forwarding, with latency from 3.8 us and a 16 GB packet buffer. Ports break out to up to 144 x 100G or 232 x 25/10G or 50G, and two OSFP-LS ports support 400G-ZR deployments. This SKU has front-to-rear airflow and two PWR-2411-DC hot-swap power supplies rated -48 to -60 VDC, with a typical draw of 643 W and a maximum of 1283 W.

The switch runs Arista EOS and integrates with CloudVision. The 36 QSFP-DD ports accept 400G QSFP-DD optics and cables, and QSFP+ 40G is supported on up to 36 ports. It uses FAN-7012H fan trays and PWR-2411 AC or DC power supplies.

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

Features

- Line-rate TunnelSec encryption (AES-256-GCM) with MACsec, IPsec and VXLANsec on all interface speeds
- Large route scale on the R3AK variant, with over 5M IPv4/v6 routes via FlexRoute
- 16 GB ultra-deep dynamic packet buffers with Virtual Output Queues to avoid head-of-line blocking
- Two OSFP-LS ports for dense 400G-ZR deployments
- SyncE and IEEE 1588 PTP precision timing
- Accelerated sFlow and Inband Network Telemetry
- EVPN-VXLAN support, 512-way ECMP and 256-way MLAG
- Arista EOS and CloudVision integration
- Redundant, hot-swap power supplies and fans

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: 36 x 400G QSFP-DD
- Breakout: up to 144 x 100G, 232 x 50G or 232 x 25/10G
- 40G ports (using QSFP+): up to 36
- Additional ports: 2 x OSFP-LS for 400G-ZR
- Throughput (FDX): 14.4 (28.8) Tbps
- Packet forwarding: 5.4 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 16 GB
- Encryption: TunnelSec on all ports
- Power supplies: 2 x PWR-2411-DC, -48 to -60 VDC, 55 A
- Typical/Max power draw: 643 W / 1283 W
- Fan tray: FAN-7012H
- Airflow: front-to-rear
- Rack units: 2RU
- Size (W x H x D) inc. handles: 43.99 x 8.79 x 61.2 cm
- Weight: 24.09 kg
- Operating temperature: 0 to 40 C
- Storage temperature: -25 to 70 C
- Operating altitude: 0 to 3,000 m
- Relative humidity: 5 to 90% (non-condensing)

FAQs

Q: Does this switch support encryption?
A: Yes. The R3AK variant includes TunnelSec with line-rate AES-256-GCM encryption on all ports, supporting MACsec, IPsec and VXLANsec.

Q: What power does this DC model require?
A: It uses two hot-swap PWR-2411-DC supplies rated -48 to -60 VDC, 55 A. Typical draw is 643 W and maximum draw is 1283 W with 20 W optics on all ports.

Q: Which optics and speeds can the ports use?
A: The 36 QSFP-DD ports accept 400G QSFP-DD optics and cables and break out to 100G, 50G, 25G or 10G. QSFP+ 40G is supported on up to 36 ports, and the two OSFP-LS ports support 400G-ZR.

Q: Which software does it run and does it need a licence?
A: It runs Arista EOS. The 7280DR3A-36 family is listed under EOS feature licence Group 5, with a minimum of EOS 4.30.0. Confirm the exact licence bundle for your deployment.

Q: How does this SKU differ from other 7280R3A variants?
A: This SKU is the R3AK variant with large route scale and TunnelSec, front-to-rear airflow and two DC power supplies. Other SKUs in the family differ in route scale, airflow direction or AC versus DC power.