Arista DCS-7280CR3K-32D4A-F | 7280R3 32x 100G + 4x 400G QSFP-DD Switch, Front-to-Rear

SKU:DCS-7280CR3K-32D4A-F

Stock Status: Enquire

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Description

The Arista 7280R3 is a 1RU fixed-configuration data centre switch and router built for deep-buffer, large-route roles. This 7280CR3K variant uses the large-route FlexRoute profile and suits leaf and spine deployments, internet exchanges, content delivery networks, IP storage and data analytics fabrics.

It provides 32 x 100G QSFP100 ports and 4 x 400G QSFP-DD ports, with 4.8 Tbps of wire-speed throughput, a 2 Bpps forwarding rate and latency from 3.8 us. An 8 GB deep packet buffer helps absorb microbursts and congestion. This -F SKU is the front-to-rear airflow, configurable fans and PSU option, with typical and maximum power draw of 543 W and 865 W. It accepts PWR-1011-AC or PWR-1011-DC hot-swap power supplies in a 1+1 arrangement.

The QSFP100 ports support 100G, 40G, and breakout to 4x25G or 4x10G, while the QSFP-DD ports provide 400G. The switch runs Arista EOS and is managed with CloudVision.

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

Features

- Deep-buffer virtual output queue (VOQ) architecture avoids head-of-line blocking and minimises packet drops under congestion
- FlexRoute engine holds the full internet routing table in hardware
- Runs Arista EOS, a single binary image across Arista platforms
- 512-way ECMP and 256-way MLAG
- LANZ microburst detection, DANZ advanced mirroring, sFlow and Inband Network Telemetry
- IEEE 1588 precision timing
- Hot-swap redundant power supplies and fans
- Live software patching, Stateful Fault Repair and Smart System Upgrade
- VXLAN and EVPN support, zero touch provisioning and eAPI

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

- Port configuration: 32 x 100G QSFP100 + 4 x 400G QSFP-DD
- Throughput: 4.8 Tbps
- Packets per second: 2 Bpps
- Latency: From 3.8 us
- Packet buffer memory: 8 GB
- Form factor: 1RU
- Airflow: Front-to-rear
- Typical / max power draw: 543 W / 865 W
- Supported power supplies: PWR-1011-AC, PWR-1011-DC (1+1 hot-swap)
- Dimensions (W x H x D): 48.3 x 4.4 x 55.8 cm
- Weight: 12.3 kg
- Max 10G ports: 96
- Max 25G ports: 96
- Max 40G ports: 36
- Max 50G ports: 96
- Max 100G ports: 48
- Max 400G ports: 4
- CPU: Multi-core x86
- Grounding kit: KIT-GND-EXT-1RU

FAQs

Q: Which power supplies does this switch use?
A: It takes PWR-1011-AC or PWR-1011-DC hot-swap power supplies in a 1+1 redundant arrangement. Typical power draw is 543 W with a maximum of 865 W.

Q: What does the large-route (K) variant mean?
A: The K designation indicates the large-route FlexRoute profile, which allows the full internet routing table to be held in hardware. This suits internet edge and routing roles in the data centre.

Q: What airflow does the -F version provide?
A: The -F suffix denotes front-to-rear airflow. Fans and power supplies are configurable for this SKU.

Q: What port speeds can the QSFP100 and QSFP-DD ports run?
A: The QSFP100 ports run 100G and 40G, and can break out to 4x25G or 4x10G. The QSFP-DD ports provide 400G.

Q: Which operating system and management tools does it use?
A: It runs Arista EOS and is managed with CloudVision, with eAPI and zero touch provisioning available for automation.