Arista DCS-7280CR3K-32D4A-FLX-F | 7280R3K 32-Port 100G Switch, 4x 400G, FLX, Front-to-Rear

SKU:DCS-7280CR3K-32D4A-FLX-F

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Description

The Arista 7280R3K is a 1RU fixed data centre switch router built for cloud, content delivery, service provider, IP storage and large routing table deployments. It suits leaf and spine roles, Internet peering and carrier edge work where deep buffers and Internet-scale routing matter.

This model provides 32 x QSFP100 ports and 4 x QSFP-DD 400G ports, with 4.8 Tbps throughput (9.6 Tbps full duplex), a 2 Bpps forwarding rate, latency from 3.8 us and 8 GB of packet buffer. It runs Arista EOS on an eight-core x86 CPU with 64 GB of system memory and a 120 GB SSD. The FLX licence is bundled, covering full routing, EVPN, VXLAN, Segment Routing and advanced MPLS. This SKU has front-to-rear airflow and two AC power supplies, which separates it from rear-to-front and DC variants.

The switch supports 1G, 10G, 25G, 50G, 100G, 200G and 400G pluggable optics and cables across its SFP, QSFP and QSFP-DD port types, subject to transceiver capability and breakout requirements. It requires EOS 4.27.2 or later. Compatible spares include FAN-7011H fan modules, PWR-1011 power supplies and KIT-7001 and KIT-7101 series rack kits.

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

Features

- FlexRoute engine for Internet-scale routing, with flexible forwarding profiles supporting up to 5M IP routes
- Algorithmic ACLs for scalable IPv4 and IPv6 access control, policy-based forwarding and telemetry
- Inband Network Telemetry (INT) for real-time per-flow visibility
- Runs Arista EOS, a single binary image across all Arista switches
- FLX licence enables full routing, EVPN, VXLAN, Segment Routing and advanced MPLS
- 8 GB deep buffers for IP storage, content delivery and cloud workloads
- Hot-swap redundant power supplies and fans for resilient operation

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: 32 x QSFP100, 4 x QSFP-DD
- Maximum 400G ports: 4
- Maximum 100G ports: 48
- Maximum 50G ports: 96
- Maximum 40G ports (using QSFP+): 36
- Maximum 25/10G ports: 96
- Throughput: 4.8 Tbps (9.6 Tbps full duplex)
- Forwarding rate: 2 Bpps
- Latency: from 3.8 us
- CPU: eight-core x86
- System memory: 64 GB
- Packet buffer memory: 8 GB
- SSD storage: 120 GB
- Management ports: 1 x 100/1000, 1 x RS-232 (RJ-45), 1 x USB
- Power supplies: 2 x hot-swap 1000W PWR-1011, 1+1 redundant, AC
- Fans: 3 x hot-swap, N+1 redundant (FAN-7011H)
- Airflow: front to rear
- Form factor: 1RU
- Dimensions (W x H x D): 43.99 x 4.37 x 55.83 cm
- Weight: 12.27 kg
- Operating temperature: 0 to 40 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 3,000 m
- Minimum EOS: 4.27.2

FAQs

Q: Which licence is bundled with this switch?
A: The -FLX bundle includes the FLX licence for Group 3 fixed switches. It enables full routing, EVPN, VXLAN, Segment Routing and advanced MPLS with traffic engineering and link and node protection.

Q: What power does it use and which way does the air flow?
A: It uses two hot-swap 1000W PWR-1011 AC power supplies in a 1+1 redundant arrangement. Airflow is front to rear.

Q: What optics and speeds does it support?
A: The 32 QSFP100 ports take 100G optics and cables, and the 4 QSFP-DD ports take 400G. Lower speeds such as 40G, 50G, 25G and 10G are available through breakout and adapter options, subject to transceiver and cable capabilities.

Q: What is the minimum software version?
A: This model requires Arista EOS 4.27.2 or later.

Q: How does this SKU differ from its siblings?
A: The -F suffix means front-to-rear airflow, and this SKU pairs it with two AC power supplies and the FLX licence. Rear-to-front airflow, DC power and other licence tiers are separate SKUs.