Arista DCS-7280CR3K-36A-FLX-F | 7280R3 36-Port 100G Switch, 2x 400G, FLX, 2x AC

SKU:DCS-7280CR3K-36A-FLX-F

Stock Status: Enquire

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Description

The Arista 7280R3 series is a 1RU fixed-configuration deep-buffer data centre switch router, built for spine and leaf designs, service provider peering, data centre interconnect and large-scale routing where deep buffers and big route tables matter. This 7280CR3K variant is the large-routes model, supporting more than 256K routes, and it runs Arista EOS.

It provides 36 ports in total: 28 x 100G QSFP100, 6 x 200G QSFP200 and 2 x 400G QSFP-DD. Switching throughput is 2.4 Tbps (4.8 Tbps full duplex) with a forwarding rate of 1 Bpps, latency from 3.8 microseconds and a 4 GB packet buffer. An eight-core x86 CPU and 64 GB of system memory support the control plane. This SKU is the FLX licence version (EOS Feature License Group 3), covering OSPF, ISIS, BGP, PIM, EVPN, VXLAN, Segment Routing and MPLS. Power comes from two hot-swap AC supplies in a 1+1 arrangement, with front-to-rear airflow and a typical draw of 262 W (437 W maximum).

Ports accept QSFP100, QSFP200 and QSFP-DD optics and cables, with 40G, 25G and 50G modes available, and the switch is managed through EOS and CloudVision.

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

Features

- Deep-buffer virtual output queue (VOQ) architecture that avoids head-of-line blocking
- FlexRoute engine for large route tables of 256K routes and above
- Flexible 10G, 25G, 40G, 50G, 100G and 400G port modes
- 512-way ECMP and 256-way MLAG with hitless MLAG ISSU
- EVPN, VXLAN, MPLS and Segment Routing support under the FLX licence
- LANZ microburst detection for buffer visibility
- CloudVision integration and zero touch provisioning
- Redundant hot-swap power supplies and fans, designed for NEBS

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: 28 x QSFP100, 6 x QSFP200, 2 x QSFP-DD (36 total)
- Maximum 400G ports: 2
- Throughput: 2.4 Tbps (4.8 Tbps full duplex)
- Forwarding rate: 1 Bpps
- Latency: from 3.8 microseconds
- Packet buffer: 4 GB
- CPU: eight-core x86
- System memory: 64 GB
- Route scale: large routes (K variant), over 256K routes
- Licence: FLX (EOS Feature License Group 3)
- Power supplies: 2 x AC, hot-swap, redundant
- Typical / maximum power draw: 262 W / 437 W
- Airflow: front to rear
- Rack units: 1RU
- Dimensions (W x H x D): 43.99 x 4.37 x 47.17 cm (17.3 x 1.72 x 18.57 in)

FAQs

Q: Does this switch need a separate software licence?
A: No. This SKU is the FLX version and includes EOS Feature License Group 3, covering OSPF, ISIS, BGP, PIM, EVPN, VXLAN, Segment Routing and MPLS.

Q: What does the K in 7280CR3K mean?
A: The K variant supports large route tables, over 256K routes, compared with the standard 7280R3 models.

Q: What airflow and power configuration does it use?
A: It uses front-to-rear airflow with two hot-swap AC power supplies in a 1+1 redundant arrangement. Typical draw is 262 W with a maximum of 437 W.

Q: Which optics and speeds does it support?
A: The ports accept QSFP100, QSFP200 and QSFP-DD 400G optics and cables, with 40G, 25G and 50G modes available through breakout.

Q: What is it best suited to?
A: It suits data centre spine and leaf, service provider peering, data centre interconnect and large-scale routing that needs deep buffers and large route tables.