• Gray metal Arista DCS-7280QR-C72-F network switch with 72 ports and blue lights for high-speed 40G and 100G connections
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Arista

Arista DCS-7280QR-C72-F | 7280R 72-Port 40G Switch, 6.4Tbps, 16x 100G QSFP

DCS-7280QR-C72-F

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Description

The Arista DCS-7280QR-C72-F is a high-density data center switch designed for large-scale cloud and enterprise environments. Featuring 72 QSFP ports that deliver 56x 40GbE and 16x 100GbE connectivity, this 2RU switch provides 6.4 Tbps switching capacity with ultra-low latency of 3.8 microseconds. With deep 32GB packet buffers, advanced Layer 2 and Layer 3 capabilities, and front-to-rear airflow, it is ideal for spine-leaf architectures, hyperscale deployments, and demanding workloads requiring wire-speed performance and flexible port breakout options.

Features

Wire-speed Layer 2 and Layer 3 forwarding with ultra-low latency
- 32 GB ultra-deep packet buffer with virtual output queuing per port
- Flexible multi-speed port support: 10G, 25G, 40G, 50G, and 100G
- Advanced routing: BGP, OSPF, IS-IS, MP-BGP with 128-way ECMP
- VXLAN support for network virtualization and overlay networks
- MLAG (Multi-Chassis Link Aggregation) for high availability
- CloudVision integration for network-wide visibility and automation
- LANZ (Latency Analyzer) for real-time microburst detection
- DANZ (Data Analyzer) with advanced mirroring and TAP aggregation
- Zero Touch Provisioning (ZTP) for simplified deployment
- Comprehensive Layer 2 features: RPVST+, MST, LACP, 4096 VLANs
- Advanced security: 802.1X, MACsec, Control Plane Policing
- Precision timing support for financial and broadcast applications
- Arista EOS: single-image modular operating system with in-service upgrades
- Hot-swappable redundant power supplies and fans
- Energy-efficient design with over 94% efficient power supplies
- OpenFlow and programmable hardware for SDN deployments
- Jumbo frame support up to 9216 bytes

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

Form Factor: 2RU rack-mountable
- Port Configuration: 72x QSFP ports (56x 40GbE QSFP+ and 16x 100GbE QSFP100)
- Port Flexibility: Supports breakout to 160x 10GbE, 64x 25GbE, or 32x 50GbE
- Switching Capacity: 6.4 Tbps
- Forwarding Rate: 2.88 Bpps (billion packets per second)
- Latency: As low as 3.8 microseconds
- Packet Buffer: 32 GB deep buffer memory
- System Memory: 8 GB (16 GB optional)
- Flash Storage: 4 GB
- MAC Address Table: 768,000 entries
- Management Ports: 1x Gigabit Ethernet, 1x RS-232 console, 1x USB
- Power Supply: 2x 1900W hot-swappable AC PSUs (redundant)
- Airflow: Front-to-rear (port side to fan side)
- Cooling: 4x hot-swappable fans
- Dimensions: 3.5 in H x 19 in W x 22.2 in D (8.9 x 48.3 x 56.3 cm)
- Weight: 47.2 lb (21.4 kg)
- Operating Temperature: 0 to 40°C
- Power Cables Included: 2x C19-C20 cords

FAQs

Q: What port breakout options does the DCS-7280QR-C72-F support?
A: The switch supports flexible port configurations including 72x 40GbE, 160x 10GbE, 64x 25GbE, 32x 50GbE, and up to 16x 100GbE depending on your connectivity requirements. Not all ports support every breakout combination, so refer to Arista documentation for specific port capabilities.

Q: Is this switch suitable for spine-leaf data center architectures?
A: Yes, the DCS-7280QR-C72-F is purpose-built for large-scale data center deployments including spine-leaf and CLOS architectures. Its high port density, deep buffers, and wire-speed Layer 3 performance make it ideal for both spine and leaf roles in hyperscale and enterprise data centers.

Q: What are the differences between the F and R suffix models?
A: The F suffix indicates front-to-rear airflow (port side to fan side), while the R suffix indicates rear-to-front airflow (fan side to port side). Choose based on your data center hot aisle/cold aisle configuration for optimal cooling efficiency.

Q: Does this switch support VXLAN and network virtualization?
A: Yes, the 7280R Series running Arista EOS supports VXLAN for overlay networks, CloudVision integration, advanced mirroring, DANZ, LANZ for microburst detection, and comprehensive network virtualization features required for modern data center operations.

Q: What routing protocols and Layer 3 features are supported?
A: The switch supports a full suite of enterprise routing protocols including BGP, OSPF, OSPFv3, IS-IS, and RIPv2, along with 128-way ECMP, VRF, BFD, policy-based routing, VRRP, and Virtual ARP for advanced Layer 3 deployments.

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