Arista DCS-7280CR3AK-24D12-S-R | 7280R3A 24x 100G + 12x 400G Switch, Rear-to-Front

SKU:DCS-7280CR3AK-24D12-S-R

Stock Status: Enquire

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Description

The Arista 7280R3A is a 1RU fixed-configuration data centre switch router built for large-scale layer 2 and layer 3 cloud and enterprise data centres, service provider networks, secure internet peering and carrier edge VPN services. This R3AK variant adds large-route scale and TunnelSec wire-speed encryption, which also makes it suited to encrypted data centre interconnect.

It provides 24 x QSFP100 and 12 x QSFP-DD ports, with 7.2 Tbps throughput (14.4 Tbps full duplex), a 2.7 Bpps forwarding rate and latency from 3.8 us. An 8 GB packet buffer, an eight-core x86 CPU and 64 GB of system memory support demanding routing workloads. TunnelSec covers MACsec, IPsec and VXLANsec on all ports. This SKU is the rear-to-front airflow model with two hot-swap AC power supplies in 1+1 redundancy and secure boot enabled.

The QSFP-DD ports support 400G and breakout down to 50G and 25/10G, and the QSFP100 ports also take QSFP+ 40G optics. The switch runs Arista EOS 4.31.1 or later and is managed with CloudVision.

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

Features

- Large-route R3AK scale with over 5M IPv4 routes and up to 384K MAC addresses
- Line-rate TunnelSec encryption using MACsec, IPsec and VXLANsec with AES-256-GCM
- Deep packet buffers with virtual output queues per port to avoid head-of-line blocking
- PTP and Synchronous Ethernet precision timing
- Redundant hot-swap power supplies and fans with 94%+ efficient PSUs, designed for NEBS
- Arista EOS with CloudVision, EVPN-VXLAN, LANZ microburst detection, Zero Touch Provisioning and Accelerated sFlow
- Open programmable APIs (JSON-RPC, NETCONF) with full Linux shell access
- MPLS, segment routing and EVPN services for carrier edge and peering use cases

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 QSFP100, 12 x QSFP-DD
- Max 400G ports: 12
- Max 100G ports: 72
- Max 50G ports: 116
- Max 40G ports (using QSFP+): 36
- Max 25/10G ports: 116
- Throughput (full duplex): 7.2 (14.4) Tbps
- Packet forwarding rate: 2.7 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 8 GB
- CPU: eight-core x86
- System memory: 64 GB
- 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
- Fans: 3 x hot-swap (N+1 redundant), FAN-7011H
- Airflow direction: rear to front
- Typical / maximum power draw: 346 W / 845 W, excluding transceivers
- Form factor: 1RU
- Dimensions (WxHxD) including handles: 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 EOS licensing does this switch use?
A: It runs Arista EOS with feature licensing and sits under EOS Feature License Group 4. The minimum supported release is EOS 4.31.1.

Q: What power supplies does this SKU use?
A: It uses two hot-swap AC power supplies in 1+1 redundancy, PWR-1511-AC (1500 W class). Typical draw is 346 W and maximum is 845 W, excluding transceivers.

Q: Which airflow direction does this model have?
A: This -R SKU uses rear-to-front airflow with three hot-swap fans in N+1 redundancy. Match it to the airflow direction of your rack.

Q: What optics and speeds do the ports support?
A: The 12 QSFP-DD ports support 400G with breakout to 50G and 25/10G. The 24 QSFP100 ports support 100G and also take QSFP+ 40G optics, up to 36 ports at 40G.

Q: How does this model differ from other 7280R3A variants?
A: This is the large-route R3AK model with TunnelSec encryption on all ports, rear-to-front airflow, two AC power supplies and secure boot enabled.