Arista DCS-7280CR3A-72-FLX-R | 7280R3A 72-Port 100G Switch, Rear Airflow, FLX

SKU:DCS-7280CR3A-72-FLX-R

Stock Status: Enquire

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Description

The Arista 7280R3A series is a 2RU fixed data centre and service provider switch router built around 72 x 100GbE QSFP100 ports and 7.2 Tbps of wire-speed throughput. It suits Internet border and peering roles, CDN backbones, data centre interconnect, large-scale Layer 2 and Layer 3 cloud and enterprise data centres, and service provider networks running EVPN services, carrier edge VPN or MPLS and SR transport.

This SKU is the rear-to-front airflow model with two hot-swap AC power supplies in a 1+1 redundant arrangement and four hot-swap fans in N+1. It delivers 2.7 Bpps, latency from 3.8 us and an 8 GB packet buffer, backed by an eight-core x86 CPU, 64 GB of system memory and a 120 GB SSD. The -FLX bundle includes the FLX routing licence for full routing, EVPN, VXLAN, SR and advanced MPLS, and this is the non-encrypted R3A model. Typical power draw is 406 W and maximum is 754 W.

The QSFP100 ports accept 100G QSFP optics and 40G QSFP+ optics, with breakout to 50G, 25G and 10G. The switch requires EOS 4.31.2 or later, uses fan tray FAN-7012H and supports PTP and SyncE precision timing.

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

Features

- FlexRoute engine provides Internet-scale routing in hardware for Internet border, peering, CDN backbone and DCI roles
- Ultra-deep packet buffers with Virtual Output Queues per port to eliminate head-of-line blocking
- Synchronous Ethernet and IEEE 1588 PTP precision timing
- Redundant hot-swap power supplies and fans, designed for NEBS
- Over 94% efficient power supplies
- EVPN-VXLAN, LANZ microburst detection, Zero Touch Provisioning and Accelerated sFlow
- Open programmable APIs (JSON-RPC, NETCONF) and Arista EOS with a single binary image and Linux shell access
- CloudVision management support

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: 72 x QSFP100 (100GbE, also 40G and breakout to 50G/25G/10G)
- Max 100G ports: 72
- Max 50G-2 ports: 102
- Max 40G ports (using QSFP+): 72
- Max 25/10G ports: 102
- Max total interfaces: 116
- Throughput (FDX): 7.2 (14.4) Tbps
- Packets per second: 2.7 Bpps
- Latency: From 3.8 us
- Packet buffer memory: 8 GB
- CPU: Eight-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Precision timing: PTP and SyncE with OCXO and PPS/10M/ToD inputs
- Management ports: 1 x 100/1000, 1 x RS-232 serial (RJ-45), 1 x USB
- Power supplies: 2 x hot-swap AC, 1+1 redundant
- Fans: 4 x hot-swap, N+1 redundant
- Airflow direction: Rear to front
- Form factor: 2RU
- Dimensions (W x H x D) including handles: 43.99 x 8.79 x 68.69 cm
- Weight: 22.41 kg
- Typical / maximum power draw: 406 W / 754 W
- Minimum EOS: 4.31.2
- Operating temperature: 0 to 40 C
- Relative humidity: 5 to 90%
- Operating altitude: 0 to 3,000 m

FAQs

Q: What does the -FLX suffix mean on this switch?
A: The -FLX suffix indicates the bundle that includes the FLX routing licence. It covers full routing up to 2M routes, EVPN, VXLAN, SR and advanced MPLS LER/LSR with TE and link/node protection. Other EOS licences such as Enhanced L3, Virtualization, and Monitoring and Automation are separate options.

Q: Which airflow direction does this model use?
A: This SKU is the rear-to-front airflow model, as indicated by the -R suffix. It uses fan tray FAN-7012H, and the rear-to-front variant is the blue one.

Q: What power supplies does it use?
A: It is supplied with two hot-swap AC power supplies in a 1+1 redundant arrangement. Compatible units are PWR-1513-AC, PWR-1512-AC and the DC option PWR-1511-DC, with the blue versions providing reverse airflow. The AC units run from 200-240 VAC at 1500 W output.

Q: Which port speeds and optics does it support?
A: The 72 QSFP100 ports run at 100GbE and also accept 40G QSFP+ optics. They support breakout to 50G, 25G and 10G, subject to transceiver capabilities.

Q: Does it support MACsec encryption?
A: No. This is the non-encrypted R3A model. MACsec and encryption licences are separate and apply to other models.

Q: What EOS version does it require?
A: It requires Arista EOS 4.31.2 or later.