Arista DCS-7280CR3AK-24D12-S-F | 7280R3A 24x100G 12x400G Switch, TunnelSec, Secure Boot

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

Stock Status: Enquire

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Description

The Arista 7280R3A is a 1RU fixed data centre switch router built for spine and leaf deployments in large-scale cloud and enterprise data centres. It also suits service provider networks, Internet peering, carrier edge VPN services, EVPN for 5G and metro, and secure inter-DC links. This is the Large Scale (R3AK) variant with TunnelSec encryption and secure boot enabled.

It provides 24 x 100GbE QSFP100 and 12 x 400GbE QSFP-DD ports with 7.2 Tbps throughput (14.4 Tbps full duplex), 2.7 Bpps forwarding and latency from 3.8 us. An 8 GB packet buffer sits alongside an eight-core x86 CPU, 64 GB system memory and a 480 GB SSD. TunnelSec delivers line-rate MACsec, IPsec and VXLANsec encryption on all ports. This SKU uses front-to-rear airflow with two hot-swap AC power supplies in a 1+1 configuration and three hot-swap fans.

It runs Arista EOS (minimum 4.31.1) and belongs to EOS Feature License Group 4. It supports 400G ZR/ZR+ optics, and breakout to 50G, 25G and 10G is available, with 40G via QSFP+. It is managed with Arista CloudVision and EOS.

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

Features

- TunnelSec line-rate AES-256-GCM encryption with MACsec (IEEE 802.1AE), IPsec and VXLANsec from 10G to 400G
- Large Scale (R3AK) model with over 5M IPv4 routes and up to 384K MAC addresses
- Algorithmic ACLs for 400K+ rules
- Virtual Output Queues per port to eliminate head-of-line blocking
- PTP and SyncE precision timing
- EVPN-VXLAN, LANZ microburst detection, Zero Touch Provisioning and accelerated sFlow
- Open programmable APIs (JSON-RPC, NETCONF, eAPI) and full Linux shell access via Arista EOS
- Secure boot enabled, with 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.

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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 (FDX): 7.2 (14.4) Tbps
- Packets per second: 2.7 Bpps
- Latency: From 3.8 us
- CPU: Eight-core x86
- System memory: 64 GB
- Packet buffer memory: 8 GB
- SSD storage: 480 GB
- Encryption: TunnelSec on all ports
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management port: 1 x 100/1000
- Serial console: 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: Front to rear
- Typical/Max power draw: 346 W / 845 W
- Size (W x H x D) inc. handles: 43.99 x 4.37 x 59.2 cm
- Weight: 14.79 kg
- Rack units: 1 RU
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does this switch need a licence for TunnelSec encryption?
A: Encryption is an EOS licensed feature that needs a licence file. The switch belongs to EOS Feature License Group 4, with optional LIC-FIX-4 licences such as -MACSEC and -ENCR for TunnelSec, IPsec and MACsec.

Q: What power supplies does it use and what is the power draw?
A: It uses two hot-swap AC supplies (PWR-1511-AC) in a 1+1 redundant configuration. Typical draw is 346 W and maximum is 845 W, measured at 25 C ambient with 50% load on all ports and excluding transceivers.

Q: Which airflow direction does this SKU use?
A: This SKU uses front-to-rear airflow. Matching spares are PWR-1511-AC-RED power supplies and FAN-7011H-F fans for forward airflow.

Q: Can the 100G and 400G ports break out to lower speeds?
A: Yes. Breakout to 50G, 25G and 10G is supported, and 40G works via QSFP+, subject to the transceiver and cable used. The switch also supports 400G ZR/ZR+ optics.

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