Arista DCS-7280CR3AK-48D6-F | 7280R3A 48x 100G Switch, 6x 400G QSFP-DD, TunnelSec

SKU:DCS-7280CR3AK-48D6-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a 2RU fixed data centre switch router built for large-scale layer 2 and layer 3 cloud and enterprise data centres, spine and leaf fabrics, Internet border and peering roles, data centre interconnect and carrier edge networks. This 7280CR3AK-48D6 model adds large route scale and line-rate TunnelSec encryption for protected DCI and WAN links.

It provides 48 x 100G QSFP100 ports and 6 x 400G QSFP-DD ports, plus a dedicated OSFP-LS port for 400G ZR/ZR+ DWDM optics. Throughput is 7.2 Tbps (14.4 Tbps full duplex) with a 2.7 Bpps forwarding rate, latency from 3.8 us and 8 GB of packet buffer. The FlexRoute engine supports over 5M IPv4 routes, and TunnelSec delivers AES-256-GCM MACsec, IPsec and VXLANsec on all ports at speeds from 10G to 400G. This SKU uses front-to-rear airflow with dual 1500 W AC hot-swap power supplies in a 1+1 arrangement.

It runs Arista EOS 4.31.1 or later with Group 4 fixed-switch feature licences, and is managed with CloudVision. It works with QSFP+, QSFP28, QSFP-DD and breakout optics, with FAN-7012H fan trays and PWR-1512-AC power supplies.

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

Features

- Virtual output queue architecture with deep packet buffering to avoid head-of-line blocking
- FlexRoute engine for Internet-scale routing, over 5M IPv4 routes
- Line-rate AES-256-GCM TunnelSec encryption on all ports from 10G to 400G
- 400G ZR/ZR+ support through a dedicated OSFP-LS port
- EVPN-VXLAN, CloudVision, LANZ microburst detection, ZTP and accelerated sFlow
- Synchronous Ethernet and IEEE 1588 precision timing
- Redundant hot-swap power supplies and fans, designed for NEBS
- Arista EOS single binary image with Linux shell access and bash, Python and C++ extensibility

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: 48 x QSFP100, 6 x QSFP-DD, 1 x OSFP-LS
- Throughput: 7.2 Tbps (14.4 Tbps full duplex)
- Forwarding rate: 2.7 Bpps
- Latency: from 3.8 us
- Packet buffer: 8 GB
- System memory: 64 GB
- CPU: Eight-core x86
- SSD storage: 120 GB
- Encryption: TunnelSec on all ports (MACsec, IPsec, VXLANsec)
- Max 400G ports: 6
- Max 100G ports: 68
- Max 25/10G ports: 114
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management: 1 x 100/1000 port, 1 x RJ-45 serial, 1 x USB
- Power supplies: 2 x 1500 W AC hot-swap (1+1), PWR-1512-AC
- Fans: 4 x hot-swap (N+1), FAN-7012H, front-to-rear airflow
- Power draw: 388 W typical, 979 W maximum (excludes transceivers)
- Dimensions (WxHxD): 43.99 x 8.79 x 68.38 cm, 2RU
- Weight: 22.04 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.31.1

FAQs

Q: Does this switch need a licence?
A: It runs Arista EOS and uses Group 4 fixed-switch feature licences such as LIC-FIX-4-E for Enhanced L3. TunnelSec encryption is a licensed EOS feature that needs a licence file to enable.

Q: What power does it need?
A: It uses dual hot-swap 1500 W AC power supplies (PWR-1512-AC) on 200-240 VAC, with typical draw of 388 W and a maximum of 979 W excluding transceivers.

Q: Which optics and modules does it work with?
A: It supports QSFP, QSFP+ and QSFP28 for 40G and 100G, QSFP-DD for 400G, breakout to 50G, 25G and 10G, and 400G ZR/ZR+ on the OSFP-LS port. Replacement fan trays are FAN-7012H.

Q: How does this model differ from other 7280R3A variants?
A: This is the 7280R3AK, which adds large route scale and TunnelSec encryption, with front-to-rear airflow and two AC power supplies.

Q: What airflow direction does this SKU use?
A: This SKU uses front-to-rear airflow.