Arista DCS-7280CR3AM-24D12-F | 7280R3A 24x 100G, 12x 400G Switch, MACsec, Front-to-Rear

SKU:DCS-7280CR3AM-24D12-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a fixed-configuration 1RU data centre switch router built for leaf and spine deployments, cloud and enterprise data centres, and service provider edge and core roles. This is the encryption model, with line-rate TunnelSec and MACsec on all ports, so it suits sites and racks that need encrypted links without a separate appliance.

The port layout is 24 x 100GbE QSFP100 and 12 x 400GbE QSFP-DD, with breakout support down to 200G, 100G, 50G, 25G and 10G. It delivers 7.2 Tbps of throughput (14.4 Tbps full duplex) and 2.7 Bpps, with latency from 3.8 us and an 8 GB packet buffer with Virtual Output Queues. Precision timing is covered by PTP and SyncE with an OCXO and PPS/10M/ToD inputs. Power is two hot-swap AC supplies in 1+1 redundancy and three hot-swap fans in N+1, with front-to-rear airflow.

The switch runs Arista EOS with CloudVision management, EVPN-VXLAN, LANZ microburst detection and accelerated sFlow. EOS Feature License Group 4 applies and the minimum EOS release is 4.31.1. The 400G ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR optics.

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

Features

- Line-rate MACsec and TunnelSec encryption on all ports
- Deep packet buffers with Virtual Output Queues per port to avoid head-of-line blocking
- Synchronous Ethernet and IEEE 1588 precision timing
- Redundant hot-swap power supplies and fans, designed for NEBS
- Arista EOS with CloudVision, EVPN-VXLAN, LANZ microburst detection, ZTP and accelerated sFlow
- Open programmable APIs including JSON-RPC and NETCONF for provisioning and telemetry
- Supports 400G ZR/ZR+ optics and 25G, 50G, 100G, 200G and 400G speeds via breakouts

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
- Encryption: MACsec / TunnelSec on all ports
- 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
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management: 1 x 100/1000 port, 1 x RS-232 serial (RJ-45), 1 x USB
- 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: Front to rear
- Rack units: 1 U
- Dimensions (W x H x D): 43.99 x 4.37 x 59.2 cm
- Weight: 14.79 kg
- Typical / max power draw: 346 W / 845 W
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does this switch need a software licence?
A: It runs Arista EOS and falls under EOS Feature License Group 4, with a minimum EOS release of 4.31.1. The hardware encryption capability (TunnelSec/MACsec) is built into this model. Advanced feature licences are separate, so check Arista's licensing guide for your design.

Q: What power supplies does it use?
A: It uses two hot-swap AC supplies in 1+1 redundancy, model PWR-1511-AC (1500 W output, 200-240 VAC, IEC C14 inlet). Typical draw is 346 W and maximum is 845 W.

Q: Which optics and cables work in the 400G and 100G ports?
A: The 400G QSFP-DD ports support 400GBASE-CR8, AOC, SR8, DR4, XDR4, FR4, LR4, PLR4 and ZR, plus 200G, 100G, 50G, 25G and 10G breakout modes. The 100G QSFP100 ports support 100G and 40G QSFP+ optics and cables.

Q: How does this SKU differ from other 7280R3A models?
A: This is the encryption model with MACsec and TunnelSec on all ports, front-to-rear airflow and two AC supplies. Rear-to-front airflow is available as the -R variant, and DC supplies are offered on other SKUs.

Q: Which fan tray does it take?
A: It uses the FAN-7011H fan tray, with three hot-swap fans in N+1 redundancy.