Arista DCS-7280CR3-36S-F | 7280R3 36-Port 100G Switch, 2x 400G, Front-to-Rear

SKU:DCS-7280CR3-36S-F

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Description

The Arista 7280R3 series DCS-7280CR3-36S-F is a 1RU fixed data centre switch router built for cloud, data centre and service provider routing. It suits large-scale layer 2/3 leaf and spine designs, EVPN/VXLAN overlay networks, internet peering, inter-DC interconnect and carrier edge VPN services.

It provides 36 QSFP ports (28 x QSFP100, 6 x QSFP200 and 2 x QSFP-DD) with up to 2 x 400G ports and a maximum of 40 x 100G. Switching performance is 2.4 Tbps (4.8 Tbps FDX) with 1 Bpps packet forwarding, latency from 3.8 us and a 4 GB deep packet buffer. A quad-core x86 CPU, 64 GB of system memory and 8 GB of flash support Arista EOS. This variant has front-to-rear airflow with 2 x hot-swap AC power supplies in a 1+1 redundant arrangement, typical power draw of 254 W and maximum of 423 W.

The QSFP100 and QSFP200 ports accept QSFP100 and QSFP+ optics and cables, and the two 400G ports take QSFP-DD, with breakout to 4x25G/10G or 2x50G depending on the transceiver and cable. The switch uses fan tray FAN-7011M-F and PWR-1011 power supplies, and requires EOS 4.26.1 or later. It sits in EOS Feature License Group 3.

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

Features

- Flexible 1/10/25/40/50/100/200/400G port speed support
- Deep packet buffers with Virtual Output Queues per port to avoid head-of-line blocking
- Wire-speed layer 2 and layer 3 forwarding
- EVPN/VXLAN, MPLS and segment routing for peering, DCI and cloud designs
- Over 2M IPv4 unicast routes
- LANZ microburst detection, Zero Touch Provisioning, Accelerated sFlow and CloudVision integration
- Arista EOS single binary image with open programmable APIs (JSON-RPC, NETCONF)
- PTP and SyncE timing support, 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
- Maximum 400G ports: 2
- Maximum 100G ports: 40
- Maximum 50G ports: 80
- Maximum 40G ports (using QSFP+): 36
- Maximum 25/10G ports: 120
- Maximum 1G ports: 24
- Throughput (FDX): 2.4 (4.8) Tbps
- Packets per second: 1 Bpps
- Latency: from 3.8 us
- CPU: Quad-core x86
- System memory: 64 GB
- Packet buffer memory: 4 GB
- Flash storage: 8 GB
- Management: 1 x 100/1000 port, 1 x RS-232 serial (RJ-45), 1 x USB
- Power supplies: 2 x hot-swap PWR-1011 AC (1+1 redundant)
- Fans: 2 x hot-swappable (1+1 redundant), FAN-7011M-F
- Airflow: front to rear
- Typical/maximum power draw: 254 W / 423 W
- Dimensions (WxHxD): 43.99 x 4.37 x 47.17 cm, 1U
- Weight: 10.47 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.26.1

FAQs

Q: Which EOS licence group does this switch belong to?
A: It runs Arista EOS and is in EOS Feature License Group 3. Optional Group 3 licences such as LIC-FIX-3-E (Enhanced L3 including BGP, OSPF, ISIS, PIM and NAT) and LIC-FIX-3-V (VMTracer and VXLAN) are available for added features.

Q: What power supplies does this model use?
A: It uses 2 x hot-swap PWR-1011 AC power supplies in a 1+1 redundant arrangement. Each is rated at 1000 W for 100-240V AC input at 50/60Hz.

Q: Which optics do the ports accept?
A: The 28 QSFP100 and 6 QSFP200 ports accept QSFP100 and QSFP+ optics and cables, and the 2 QSFP-DD ports support 400G. Breakout to 4x25G/10G or 2x50G is available depending on the transceiver and cable used.

Q: How does this SKU differ from the -R and 7280CR3K variants?
A: The -F suffix means front-to-rear airflow, whereas the -R variant is rear-to-front. The 7280CR3K variants support larger route tables of over 5M IPv4 routes, compared with over 2M on this standard route model.

Q: What is the minimum EOS version required?
A: EOS 4.26.1 is the minimum version supported on this switch.