Arista DCS-7280DR3-24 | 7280R3 24-Port 400G QSFP-DD Data Centre Switch

SKU:DCS-7280DR3-24

Stock Status: Enquire

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Description

The 7280R3 DCS-7280DR3-24 is a 1RU fixed data centre switch router from Arista's 7280R3 family, built around 24 wire-speed 400GbE QSFP-DD ports. It is aimed at large-scale leaf/spine and layer 2/3 cloud designs, overlay networks using EVPN/VXLAN, internet peering and interconnect, DCI, carrier edge VPN services, 5G/MEC and metro aggregation, MPLS and Segment Routing cores, and AI/HPC clusters that need deep buffers.

The 24 x 400G ports can be broken out to up to 96 x 100G, 192 x 50G or 192 x 25/10G interfaces. Throughput is 9.6 Tbps (19.2 Tbps FDX) at 4 Bpps, with latency from 3.8 us and a 16 GB packet buffer. A quad-core x86 CPU is paired with 8 GB of system memory, with 64 GB optional. This ordering line is configurable for fans and power supply, with 2 hot-swap PSUs (1+1) and 3 hot-swap fans (N+1) using front-to-rear airflow. Typical power draw is 650 W with a 1100 W maximum. The switch runs Arista EOS (minimum EOS 4.23.1) under EOS Feature License Group 4.

It supports 400G QSFP-DD optics and cables including 400GBASE-SR8, DR4, XDR4, FR4, LR4, PLR4, ZR, CR8 DAC and AOC, plus 200G, 100G, 50G and 25G breakout cables. It is managed with CloudVision.

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

Features

- Wire-speed L2 and L3 forwarding with up to 24 x 400G ports in 1RU
- Ultra-deep 16 GB packet buffer with Virtual Output Queues to avoid head-of-line blocking
- FlexRoute engine holds the full internet routing table in hardware, over 1.4M IPv4/IPv6 routes
- 512-way ECMP, MLAG, EVPN/VXLAN and MPLS/Segment Routing (LDP, RSVP-TE, SR-TE, TI-LFA)
- Algorithmic ACLs, Inband Network Telemetry and Accelerated sFlow
- LANZ microburst detection, DANZ and CloudVision integration
- Precision timing with PTP (IEEE 1588) and SyncE
- Cluster Load Balancing for AI/RDMA workloads

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: 24 x 400GbE QSFP-DD
- Max 400G ports: 24
- Max 100G ports: 96
- Max 50G ports: 192
- Max 40G ports (using QSFP+): 24
- Max 25/10G ports: 192
- Throughput (FDX): 9.6 (19.2) Tbps
- Packets per second: 4 Bpps
- Latency: From 3.8 us
- CPU: Quad-core x86
- System memory: 8 GB (64 GB optional)
- Packet buffer memory: 16 GB
- Flash storage: 8 GB
- SSD storage: 120 GB with 64 GB system
- Management port: 1 x 100/1000
- Serial port: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 hot-swap, 1+1 redundant (PWR-1511, AC or DC)
- Fans: 3 hot-swap, N+1 redundant (FAN-7011H)
- Airflow: Front to rear
- Typical/max power draw: 650 W / 1100 W
- Dimensions (WxHxD): 43.99 x 4.37 x 57.4 cm (1RU)
- Weight: 12.7 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.23.1

FAQs

Q: Which licence group does this switch fall under?
A: It runs Arista EOS and is listed under EOS Feature License Group 4, which covers Enhanced L3, Virtualization, Extensions/Security, Monitoring & Automation and FlexRoute licences such as LIC-FIX-4-E and LIC-FIX-4-FLX.

Q: What power supplies does it use?
A: It uses PWR-1511 power supplies, available in AC or DC, in a 1+1 redundant configuration. Typical draw is 650 W with a 1100 W maximum. The AC unit takes 200-240V AC input.

Q: Which optics and cables work with the 400G ports?
A: The QSFP-DD ports support 400GBASE-SR8, DR4, XDR4, FR4, LR4, PLR4, ZR, CR8 DAC and AOC, plus 200G, 100G, 50G and 25G breakout cables.

Q: How many ports can I get using breakouts?
A: The 24 x 400G ports can be broken out to up to 96 x 100G, 192 x 50G or 192 x 25/10G interfaces.

Q: How does this model differ from other 7280R3 SKUs?
A: This SKU is the 24 x 400GbE QSFP-DD model with configurable fans and power supply, 8 GB system memory as standard and 64 GB optional.