Arista DCS-7280CR3K-36A-F | 7280R3K 36x100G Switch, 2x 400G QSFP-DD, Large Routes

SKU:DCS-7280CR3K-36A-F

Stock Status: Enquire

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Description

The Arista 7280R3K is a fixed-configuration 2RU data centre switch router built for spine, leaf and routing roles in large data centres and service provider networks. It runs Arista EOS and pairs a large-route-scale (R3K) forwarding table with a deep packet buffer, which suits peering, WAN edge and high-density aggregation deployments.

This model, the 7280CR3K-36A, provides 36x 100G QSFP100 ports plus 2x 400G QSFP-DD ports. It delivers 2.4 Tbps of throughput (4.8 Tbps full duplex) and 1 Bpps, with latency from 3.8 us. An eight-core x86 CPU, 64 GB of system memory and a 4 GB packet buffer support the large route tables. It uses front-to-rear airflow with dual AC power supplies, with a typical power draw of 1003 W and a maximum of 1803 W.

The QSFP100 ports accept 40G and 100G optics, with 25G and 50G breakout options. The QSFP-DD ports accept 400G optics as well as 100G and 200G QSFP modules. The switch is managed with Arista EOS and CloudVision.

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

Features

- Wire-speed 100G and 400G ports, with 25G, 50G and 100G interface speeds on the QSFP100 ports
- Deep-buffer, cloud-grade routing platform for spine and edge roles
- Large route scale for peering and service provider deployments
- Arista EOS with accelerated sFlow and streaming telemetry
- Supports QSFP, OSFP and QSFP-DD optics for speeds from 10G to 400G
- Managed with Arista EOS and CloudVision

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: 36x 100G QSFP100 and 2x 400G QSFP-DD
- Maximum 400G ports: 2
- Maximum 100G ports: 40
- Maximum 40G ports (using QSFP+): 36
- Throughput: 2.4 Tbps (4.8 Tbps full duplex)
- Packets per second: 1 Bpps
- Latency: from 3.8 us
- CPU: Eight-core x86
- System memory: 64 GB
- Packet buffer memory: 4 GB
- Route scale: Large routes (R3K)
- Airflow: Front-to-rear
- Power supplies: 2x AC
- Typical / maximum power draw: 1003 W / 1803 W
- Dimensions (WxHxD): 43.99 x 8.79 x 76.1 cm (17.3 x 3.46 x 29.96 in)
- Rack height: 2RU
- Accelerated sFlow: Yes
- EOS feature licences: Group 3

FAQs

Q: What optics do the 100G and 400G ports accept?
A: The QSFP100 ports take 40G and 100G optics, with 25G and 50G breakout options. The 2x QSFP-DD ports take 400G optics as well as 100G and 200G QSFP modules.

Q: How is this model different from the standard 7280R3 versions?
A: The R3K designation means large route scale, with over 5M IPv4 routes on the 7280R3K family. This unit also has an eight-core CPU, front-to-rear airflow and dual AC power supplies.

Q: What power supplies and airflow does it use?
A: It uses 2x AC power supplies and front-to-rear airflow. Typical power draw is 1003 W, with a maximum of 1803 W.

Q: What operating system does it run?
A: It runs Arista EOS and can be managed with Arista CloudVision. The platform falls under EOS feature licence Group 3.

Q: What roles is it suited to?
A: It suits data centre spine and leaf layers, WAN and peering edge, and service provider routing that needs large route tables and deep packet buffers.