• Gray metal arista dcs-7280cr3am-48d6-flx-f network switch with 48 100g ports and ventilation slots shown from back side
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Arista

Arista DCS-7280CR3AM-48D6-FLX-F | 7280R3A 48-Port 100G Switch, 6x 400G, Enhanced MACsec

DCS-7280CR3AM-48D6-FLX-F

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Description

The Arista DCS-7280CR3AM-48D6-FLX-F is a high-performance data center switch router designed for demanding enterprise and service provider environments. With 48x 100GbE QSFP ports and 6x 400GbE QSFP-DD uplinks, it delivers 7.2 Tbps switching capacity and 2.7 billion packets per second forwarding rate. This model features enhanced MACsec encryption, front-to-rear airflow, dual AC power supplies, and includes the FLX license with full routing capability up to 2M routes, advanced MPLS, EVPN, and VXLAN support for large-scale cloud and overlay networks.

Features

7.2 Tbps non-blocking switching fabric with virtual output queue (VOQ) architecture
- 8 GB deep packet buffers eliminate head-of-line blocking and packet loss under congestion
- Wire-speed Layer 2 and Layer 3 forwarding with hardware-accelerated ACLs
- Enhanced MACsec IEEE 802.1AE line-rate frame encryption and authentication on all ports
- TunnelSec for standards-based strong encryption at Layer 2 and Layer 3 with anti-replay protection
- FlexRoute engine for Internet-scale routing with up to 2M routes and flexible table allocation
- EVPN-VXLAN overlay networking with hardware VTEP support
- MPLS Label Edge Router (LER) and Label Switch Router (LSR) with Segment Routing
- Multi-Chassis Link Aggregation (MLAG) for active-active Layer 2 topologies
- ECMP Layer 3 routing with up to 128-way load balancing
- Accelerated sFlow for line-rate flow sampling and network telemetry
- Inband Network Telemetry (INT) for real-time path visibility and latency monitoring
- Precision Time Protocol (PTP) IEEE 1588v2 with hardware timestamping and SyncE
- Advanced QoS with weighted fair queuing, priority scheduling, and traffic shaping
- Algorithmic ACLs for scalable policy-based forwarding and flexible access control
- Hot-swappable redundant power supplies and fan modules for high availability
- Arista EOS with advanced automation, REST API, and open integration support

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

48x 100GbE QSFP ports, 6x 400GbE QSFP-DD ports
- Switching Capacity: 7.2 Tbps (14.4 Tbps full-duplex)
- Forwarding Rate: 2.7 billion packets per second
- Packet Buffer: 8 GB deep buffer memory
- Enhanced MACsec encryption on all ports with TunnelSec support
- CPU: Eight-core x86 processor
- System Memory: 64 GB RAM
- Storage: 120 GB SSD
- FLX License included: up to 2M routes, >24K ACL entries, EVPN, VXLAN, SR, advanced MPLS-LER/LSR
- Precision Timing: PTP, SyncE with OCXO and PPS/10M/ToD inputs
- Front-to-rear airflow, dual hot-swappable AC power supplies (1500W)
- Dimensions: 1RU, 48.3 x 4.4 x 59.2 cm (19 x 1.75 x 23.3 in)
- Management: Arista EOS, CLI, REST API, ZTP, LANZ, CloudVision
- Standards: IEEE 802.3, IEEE 802.1AE MACsec, OSPF, BGP, IS-IS

FAQs

Q: What is the difference between the R3AM and standard R3A models?
A: The R3AM variant includes enhanced MACsec encryption and TunnelSec capabilities on all ports for wire-speed AES-256-GCM encryption at mixed speeds from 1G to 400G, making it ideal for secure data center and WAN connectivity. The standard R3A does not include hardware encryption features.

Q: What does the FLX license provide on this model?
A: The FLX license (Group 4) enables full routing functionality with up to 2 million routes, over 24,000 ACL entries, EVPN, VXLAN, Segment Routing, and advanced MPLS Label Edge Router and Label Switch Router capabilities. This is ideal for large-scale Internet peering, service provider, and data center spine deployments.

Q: Can this switch support multiple port speeds simultaneously?
A: Yes, the QSFP ports support flexible breakout configurations for 10G, 25G, 40G, 50G, and 100G speeds, while the QSFP-DD ports can operate at 100G, 200G, or 400G. This allows mixed-speed deployments with industry-standard optics and cables.

Q: What deployment scenarios is this switch best suited for?
A: The 7280CR3AM-48D6-FLX is ideal for data center spine applications, high-performance leaf layers, Internet Exchange Points (IXPs), content delivery networks requiring deep buffers and lossless forwarding, AI/ML fabrics with east-west traffic, and secure WAN interconnects requiring strong encryption.

Q: Does this model support Arista CloudVision for network management?
A: Yes, the switch is fully compatible with Arista CloudVision for centralized network-wide automation, telemetry, and lifecycle management. CloudVision provides ZTP provisioning, configuration management, software upgrades, and comprehensive visibility across the network fabric.

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