Arista DCS-7280CR3AM-24D12-R | 7280R3A 24x100G + 12x400G Switch, TunnelSec, Rear-Front

SKU:DCS-7280CR3AM-24D12-R

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Description

The 7280R3A is a 1RU fixed-configuration data centre switch router from Arista, built for spine and leaf designs, carrier edge and security roles, and data centre interconnect. This AM model adds TunnelSec encryption on all ports, making it suited to encrypted site-to-site and overlay transport in cloud, enterprise and service-provider networks.

It provides 24 x 100G QSFP100 ports and 12 x 400G QSFP-DD ports, with breakout support for up to 72 x 100G or 116 x 25/10G interfaces. Throughput is 7.2 Tbps (14.4 Tbps full duplex) with a forwarding rate of 2.7 Bpps, latency from 3.8 us and an 8 GB packet buffer. TunnelSec covers MACsec, IPsec and VXLANsec at line rate. This SKU has rear-to-front airflow and two hot-swap AC power supplies in a 1+1 arrangement, with a typical draw of 346 W and a maximum of 845 W.

The switch runs Arista EOS (4.31.1 or later) and uses Group 4 fixed-switch feature licences, with the LIC-FIX-4-ENCR licence file needed to enable encryption. The 100G ports accept QSFP+, QSFP28 and QSFP100 optics, the 400G ports take QSFP-DD optics, and 400G ZR/ZR+ coherent modules are supported for DCI.

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

Features

- TunnelSec line-rate AES-256-GCM encryption with MACsec, IPsec and VXLANsec on all interface speeds from 10G to 400G
- Supports QSFP, OSFP and QSFP-DD optics for 10G to 400G connectivity
- Supports 400G ZR/ZR+ coherent DWDM optics for data centre interconnect
- Runs Arista EOS with deep packet buffers, large routing tables and algorithmic ACLs
- Precision timing with PTP and SyncE using OCXO
- Hot-swap redundant power supplies and N+1 redundant fans
- Accelerated sFlow for traffic visibility

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

- Model: 7280CR3AM-24D12
- Ports: 24 x QSFP100, 12 x QSFP-DD
- Maximum 400G ports: 12
- Maximum 100G ports: 72
- Maximum 50G ports: 116
- Maximum 40G ports (using QSFP+): 36
- Maximum 25/10G ports: 116
- Encryption: All ports (TunnelSec)
- Throughput (full duplex): 7.2 (14.4) Tbps
- Forwarding rate: 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 port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x hot-swap (1+1 redundant), PWR-1511-AC or PWR-1511-DC
- Fans: 3 x hot-swappable (N+1 redundant), fan tray FAN-7011H
- Airflow direction: Rear to front
- Typical/maximum power draw: 346 W / 845 W (excludes transceivers)
- Size (W x H x D) including handles: 43.99 x 4.37 x 59.2 cm, 1RU
- Weight: 14.79 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does TunnelSec need a licence?
A: Yes. TunnelSec is an EOS licensed feature, and the LIC-FIX-4-ENCR licence file (Enhanced Security Encryption: TunnelSec, IPsec and MACsec) is needed to enable encryption. This switch uses Group 4 fixed-switch feature licences.

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

Q: What optics do the ports take?
A: The 24 x 100G ports accept QSFP+, QSFP28 and QSFP100 optics, and the 12 x 400G ports accept QSFP-DD optics. Breakout is supported for 4x10G, 4x25G, 2x50G and 4x100G, and 400G ZR/ZR+ modules are supported.

Q: What airflow direction does this SKU have?
A: The -R SKU has rear-to-front airflow, using fan tray FAN-7011H. Make sure this matches the airflow design of your rack or cold aisle.

Q: Which EOS version is required?
A: Minimum EOS is 4.31.1. The switch runs Arista EOS with Group 4 feature licences.