• Gray metal arista dcs-7280cr3am-72-flx-f network switch with 72 100g ports and ventilation slots shown from the back side
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Arista

Arista DCS-7280CR3AM-72-FLX-F | 7280R3A 72-Port 100G Switch, MACsec, FLX License

DCS-7280CR3AM-72-FLX-F

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Description

The Arista DCS-7280CR3AM-72-FLX-F is a high-density 2RU data center switch router delivering 14.4 Tbps of switching capacity across 72 x 100GbE QSFP ports. Built for large-scale cloud and service provider environments, it features wire-speed AES-256-GCM MACsec encryption, deep packet buffering up to 16GB, and includes the FLX license for advanced routing with over 256K routes, MPLS, VXLAN, and Segment Routing. Ideal for spine, aggregation, DCI, and high-performance storage networks requiring both throughput and security.

Features

14.4 Tbps non-blocking Layer 2/3 switching with 5.4 Bpps forwarding capacity
- 72 x 100GbE QSFP ports with breakout support for flexible 10G/25G/40G/50G/100G deployments
- Wire-speed MACsec, IPsec, and VXLANsec encryption using AES-256-GCM cipher
- 16 GB intelligent deep packet buffer with VOQ architecture for lossless forwarding
- FlexRoute engine supporting Internet-scale routing tables beyond 256K IPv4/IPv6 routes
- Advanced MPLS capabilities: LER, LSR, L3VPN, EVPN-MPLS, Segment Routing
- VXLAN with hardware VTEP for overlay networking and multi-tenancy
- Algorithmic ACLs with over 24K entries for scalable security and traffic policies
- Accelerated sFlow and IPFIX for high-capacity network telemetry and monitoring
- Precision Time Protocol (PTP) and SyncE for timing synchronization
- Multi-Chassis Link Aggregation (MLAG) for active-active redundancy
- 128-way ECMP for load balancing across large-scale leaf-spine topologies
- Hot-swappable redundant power supplies and fans with N+1 redundancy
- Arista EOS with stateful switchover, in-service software upgrades, and Linux integration
- Front-to-rear airflow optimized for hot-aisle/cold-aisle data center deployments

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

Port Configuration: 72 x 100GbE QSFP ports (breakout capable to 25G/50G)
- Switching Capacity: 14.4 Tbps full-duplex, non-blocking
- Forwarding Rate: Up to 5.4 billion packets per second
- Packet Buffer: 16 GB deep buffer per system
- Routing: FLX license included - supports over 256K IPv4/IPv6 routes with FlexRoute engine
- Security: Wire-speed IEEE 802.1AE MACsec encryption (AES-256-GCM) on all ports
- Layer 2/3 Features: MLAG, VXLAN, EVPN, MPLS, Segment Routing, BGP, OSPF, IS-IS
- Management: Arista EOS, CLI, REST API, CloudVision integration, ZTP, LANZ
- Power Supply: Dual redundant 1500W AC PSU (PWR-1512-AC)
- Airflow: Front-to-rear (port side to fan side)
- Form Factor: 2RU rackmount
- Dimensions: 17.5 x 3.5 x 24 inches (445 x 88 x 610 mm)
- Operating Temperature: 0°C to 40°C
- Certifications: NEBS Level 3, UL, CE, FCC Class A

FAQs

Q: What does the FLX license include with this model?
A: The FLX license enables full routing with over 256K routes, advanced MPLS LER/LSR, Segment Routing, EVPN, VXLAN, and algorithmic ACLs with more than 24K entries. It provides the scalability needed for internet peering, service provider edge, and large-scale data center deployments.

Q: What is the difference between the CR3AM and standard CR3A models?
A: The CR3AM variant includes TunnelSec encryption capabilities with hardware-accelerated MACsec, IPsec, and VXLANsec at line rate. This enables secure data-in-motion encryption across all 72 ports without performance degradation, ideal for DCI and WAN connectivity.

Q: Can this switch support both 100G and lower-speed optics?
A: Yes, each QSFP port supports 100G, 40G, and can break out to 4x25G or 4x10G interfaces using appropriate transceivers or cables. This provides deployment flexibility for mixed-speed environments and future migration paths.

Q: What deployment scenarios is the 7280CR3AM-72 best suited for?
A: This model excels as a spine switch in large leaf-spine fabrics, aggregation layer for high-density environments, DCI gateway with encryption, IP edge router for service providers, and high-performance storage networks requiring deep buffering and low latency.

Q: Is the switch compatible with Arista CloudVision management?
A: Yes, the switch runs Arista EOS and fully integrates with CloudVision for centralized network automation, telemetry, change control, and compliance. CloudVision licenses are sold separately as a subscription service.

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