Arista DCS-7280QR-C72-F | 7280R 72-Port 40G Switch, 16x 100G, Front-to-Rear

SKU:DCS-7280QR-C72-F

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Description

The Arista 7280R Series DCS-7280QR-C72-F is a 2RU fixed-configuration data centre switch router for leaf and spine deployments that need dense 10/40/100G connectivity with deep packet buffers. It also suits internet-edge and peering roles that depend on large routing tables, as well as IP storage and cloud designs.

It provides 72 QSFP ports, made up of 56 QSFP+ 40GbE ports and 16 QSFP100 ports, with 6.4 Tbps of full-duplex throughput and 2.88 Bpps of packet forwarding. Ports can be configured for up to 16x 100GbE, 32x 50GbE, 72x 40GbE, 64x 25GbE or 160x 10GbE. It has 16 GB of packet buffer memory and latency from 3.8 us. This SKU uses front-to-rear airflow with two 1900W AC hot-swap power supplies (1+1) and four hot-swap fans (N+1). It runs Arista EOS and sits in EOS Feature License Group 3, with a minimum of EOS 4.18.1.

QSFP+ ports accept 40GBASE-SR4, XSR4, LR4, LRL4, ER4, UNIV, SRBD and PLR4/PLRL4 optics, plus CR4 DAC and AOC cables. QSFP100 ports accept 100GBASE-SR4, XSR4, SWDM4, SRBD, LR, LR4/LRL4, CWDM4, XCWDM4, FR, DR, PSM4 and ERL4 optics, plus AOC and CR4 DAC cables.

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

Features

- Virtual output queue (VoQ) architecture with deep packet buffering to avoid head-of-line blocking
- Up to 128-way ECMP for large leaf-spine designs
- MLAG, VXLAN gateway, bridging and routing with VMTracer
- Large routing tables supporting internet route peering
- QSFP100 ports support 10GbE, 25GbE, 40GbE and 100GbE speeds depending on breakout and cable
- Flexible allocation of L2 and L3 forwarding table resources
- PTP, sFlow, DANZ and multi-port mirroring for visibility and monitoring
- Zero Touch Provisioning and Advanced Event Monitoring
- Runs Arista EOS, a single binary image across all Arista products
- NEBS compliant with hot-swap redundant power supplies and fans

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 QSFP (56 x QSFP+ and 16 x QSFP100)
- Maximum 100GbE ports: 16
- Maximum 50GbE ports: 32
- Maximum 40GbE ports: 72
- Maximum 25GbE ports: 64
- Maximum 10GbE ports: 160
- Throughput (full duplex): 6.4 Tbps
- Packet forwarding: 2.88 Bpps
- Latency: from 3.8 us
- Packet buffer memory: 16 GB
- CPU: Multi-core x86
- System memory: 8 GB (16 GB optional)
- Flash storage: 4 GB
- Management port: 1 x 100/1000
- Serial console: 1 x RS-232 (RJ-45)
- USB ports: 1
- Power supplies: 2 x 1900W AC hot-swap (1+1 redundant)
- Fans: 4 hot-swap (N+1 redundant)
- Airflow: front to rear
- Typical / maximum power draw: 696W / 1200W
- Rack units: 2 RU
- Dimensions (W x H x D): 48.3 x 8.9 x 56.3 cm
- Weight: 21.5 kg
- Operating temperature: 0 to 40 C
- MAC addresses: 768K
- IPv4 unicast LPM routes: over 1M
- IPv6 unicast LPM routes: 928K
- Minimum EOS: 4.18.1

FAQs

Q: What operating system does it run and which licence group applies?
A: It runs Arista EOS and is placed in EOS Feature License Group 3, with a minimum of EOS 4.18.1. Specific feature licence bundles such as advanced routing or VXLAN are ordered separately.

Q: What power does this switch need?
A: It uses two 1900W AC hot-swap power supplies in a 1+1 redundant arrangement, operating on 200-240V AC at 50/60Hz. Typical draw is 696W and maximum is 1200W.

Q: Which airflow direction does this SKU use?
A: This -F SKU uses front-to-rear airflow, from the port side to the fan side. It does not offer reversible airflow.

Q: Which optics and cables work with the QSFP ports?
A: QSFP+ 40G ports support 40GBASE-SR4, XSR4, LR4, LRL4, ER4, UNIV, SRBD and PLR4/PLRL4 optics, plus CR4 DAC (0.5-5m) and AOC (3-100m). QSFP100 ports support 100GBASE-SR4, XSR4, SWDM4, SRBD, LR, LR4/LRL4, CWDM4, XCWDM4, FR, DR, PSM4 and ERL4 optics, plus AOC and CR4 DAC.

Q: Can the ports run at lower speeds than 100G?
A: Yes. The QSFP100 ports support 10GbE, 25GbE, 40GbE and 100GbE, with 10G and 25G depending on breakout and cable, using 10G SFP+ and 25G SFP25 optics for breakout.