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Arista

Arista DCS-7280CR3-36S-FLX-F | 7280R3 36-Port 100G Switch Router, 2x 400G, 2.4 Tbps

DCS-7280CR3-36S-FLX-F

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Description

The Arista DCS-7280CR3-36S-FLX-F is a high-performance 1RU data center switch router delivering 2.4 Tbps wire-speed throughput with 36x100GbE QSFP ports and 2x400GbE uplinks. With FLX advanced routing license supporting up to 2M routes, EVPN, VXLAN, MPLS, and SR capabilities, this switch router is purpose-built for cloud-scale data centers, service provider networks, and internet peering environments requiring carrier-grade routing scale and ultra-low latency performance.

Features

Arista EOS operating system with state-sharing architecture and in-service software upgrades
- CloudVision integration for centralized network-wide visibility and automation
- Virtual Output Queue architecture eliminates head-of-line blocking
- 4GB deep packet buffer for burst absorption and TCP incast mitigation
- Advanced Layer 2 features: VLAN, STP/RSTP/MSTP, LACP, MLAG multi-chassis LAG
- Layer 3 routing: Static, OSPF, ISIS, BGP with 512-way ECMP load balancing
- MPLS support: LDP, RSVP-TE, Segment Routing, traffic engineering
- EVPN control plane for VXLAN overlay networks
- IPsec and MACsec encryption for secure data transmission
- Precision timing: IEEE 1588 PTPv2 and Synchronous Ethernet for 5G and financial applications
- Comprehensive QoS: 8 priority queues, traffic shaping, policing, WRED
- Advanced telemetry: LANZ latency monitoring, DANZ tap aggregation, sFlow, IPFIX
- Zero Touch Provisioning for automated deployment
- Redundant hot-swappable AC power supplies and fan modules
- Front-to-rear airflow optimized for cold aisle deployment

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

36x 100GbE QSFP ports with flexible breakout support for 1/10/25/40/50/100/200/400G speeds
- 2x 400GbE uplink ports for high-bandwidth spine connectivity
- 2.4 Tbps wire-speed throughput with 1.2 Bpps forwarding rate
- 4GB packet buffer with Virtual Output Queue architecture
- Ultra-low latency: 3.8 microseconds store-and-forward
- FLX routing license: Up to 2M IPv4/IPv6 routes, OSPF, ISIS, BGP, PIM, AlgoMatch
- EVPN, VXLAN, Segment Routing, advanced MPLS-LER/LSR support
- MAC address table: Up to 256K entries
- Dual redundant AC power supplies (2x AC PSU included)
- Front-to-rear airflow cooling design
- 1RU form factor: 1.73 x 17.5 x 22 inches (HxWxD)
- Operating system: Arista EOS with CloudVision support
- Management: CLI, NETCONF, JSON-RPC, REST API, ZTP, LANZ, sFlow
- IEEE 1588 PTPv2 and Synchronous Ethernet timing support
- MACsec line-rate encryption support

FAQs

Q: What routing protocols does the FLX license support on this switch?
A: The FLX license enables full Layer 3 routing with support for OSPF, ISIS, BGP, PIM multicast, up to 2 million IPv4/IPv6 routes, EVPN, VXLAN, Segment Routing, and advanced MPLS capabilities including LDP, RSVP-TE, and BGP Label Unicast for carrier-grade deployments.

Q: Can the 100G QSFP ports be broken out to lower speed interfaces?
A: Yes, the 36x 100GbE QSFP ports support flexible breakout configurations to 1G, 10G, 25G, 40G, 50G, 100G, 200G, and 400G speeds using appropriate transceivers and DAC/AOC cables, providing deployment flexibility for mixed-speed environments.

Q: What is the typical use case for this switch router model?
A: The DCS-7280CR3-36S-FLX-F is designed for data center spine and super-spine applications, cloud service provider networks, internet peering, and large-scale campus aggregation requiring high-density 100G connectivity with carrier-grade routing scale and deep buffering for burst absorption.

Q: What does the F suffix in the model number indicate?
A: The F suffix denotes front-to-rear airflow, where cool air enters through the port side and exhausts through the rear. This airflow direction is designed for standard hot aisle/cold aisle data center deployments. Rear-to-front models use the R suffix.

Q: Does this switch support network automation and telemetry?
A: Yes, it runs Arista EOS with full support for CloudVision network management, Zero Touch Provisioning, programmable APIs including NETCONF and REST, LANZ for congestion monitoring, sFlow, and comprehensive streaming telemetry for modern network automation workflows.

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