• Gray metal arista dcs-7280cr3mk-32d4s-flx-f network switch with 32 ports and ventilation slots front view
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Arista

Arista DCS-7280CR3MK-32D4S-FLX-F | 7280R3 32-Port 100G Switch, 4x 400G QSFP-DD, MACsec

DCS-7280CR3MK-32D4S-FLX-F

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Description

The Arista 7280CR3MK-32D4S-FLX-F is a high-performance data center switch router designed for spine and leaf deployments, cloud networking, and secure data center interconnect. Equipped with 32 x 100GbE QSFP ports and 4 x 400GbE QSFP-DD uplinks, it delivers 4.8 Tbps switching capacity with wire-speed MACsec encryption and TunnelSec technology. The switch features front-to-rear airflow, dual AC power supplies, and supports advanced routing with up to 256K routes using the FLX-Lite license, making it ideal for large-scale Layer 2 and Layer 3 cloud designs, VXLAN overlay networks, and DCI applications.

Features

FlexRoute Engine with scalable forwarding profiles for Internet-scale routing
- Dynamic deep buffering (8GB) with VOQ architecture for lossless forwarding
- Hardware-based MACsec encryption on all ports with line-rate performance
- TunnelSec technology: MACsec, IPsec, and VXLANsec for multi-hop encrypted tunnels
- VXLAN hardware acceleration with EVPN control plane for network virtualization
- Algorithmic ACLs for high-scale access control and pattern matching
- sFlow and IPFIX embedded for network telemetry and monitoring
- Arista Latency Analyzer (LANZ) for real-time performance visibility
- MLAG (Multi-Chassis Link Aggregation) for active-active Layer 2 topology
- ECMP routing with up to 128-way load balancing
- VRF support for Layer 3 network segmentation
- CloudVision integration for network-wide automation and telemetry
- Zero Touch Provisioning (ZTP) for automated deployment
- Hot-swappable redundant power supplies and fan modules
- Advanced QoS with 8 egress queues per port for traffic prioritization
- Control Plane Policing (CoPP) for control plane protection
- Precision Time Protocol (PTP) for network timing synchronization
- Inband Network Telemetry for flow and packet forensics
- Support for BGP, OSPF, ISIS, RIP, VRRP routing protocols
- Comprehensive Layer 2 features: STP, RSTP, MSTP, 802.1Q VLAN, 802.1ad Q-in-Q

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: 32 x 100GbE QSFP28 ports, 4 x 400GbE QSFP-DD ports
- Switching Capacity: 4.8 Tbps full duplex
- Forwarding Rate: 2 Bpps (billion packets per second)
- Packet Buffer: 8 GB deep buffer memory for lossless forwarding
- Routing Scale: Supports up to 256K routes with FLX-Lite license (over 2M routes with full FLX license)
- Layer 2/3: Wire-speed Layer 2 and Layer 3 forwarding with FlexRoute engine
- Security: Hardware-based MACsec encryption, TunnelSec (MACsec, IPsec, VXLANsec), AES-256-GCM
- Port Breakout: QSFP28 supports 40GbE, 4x25GbE, 4x10GbE breakout; QSFP-DD supports 100G and 400G optics
- Management: Arista EOS with CLI, SNMP, REST API, Zero Touch Provisioning (ZTP)
- Protocols: BGP, OSPF, VXLAN, EVPN, MPLS LSR, MLAG, ECMP (up to 128-way)
- Power Supply: Dual redundant hot-swappable AC power supplies
- Airflow: Front-to-rear (port-side intake, fan-side exhaust)
- Form Factor: 1RU 19-inch rack-mountable
- Dimensions: 1.75 in H x 19 in W x 18 in D (4.45 cm x 48.26 cm x 45.72 cm)
- Weight: Approximately 26.2 lbs (11.9 kg)
- Operating System: Arista EOS (Extensible Operating System)

FAQs

Q: What is the difference between FLX-F and FLX-R SKUs?
A: The FLX-F designation indicates front-to-rear airflow (port-side air intake), while FLX-R models have rear-to-front airflow. The FLX suffix indicates the switch includes the FLX-Lite license supporting up to 256K routes, EVPN, VXLAN, SR, and base MPLS LSR capabilities. Both include dual AC power supplies.

Q: What encryption capabilities does this switch support?
A: The DCS-7280CR3MK-32D4S-FLX-F supports hardware-based MACsec encryption at line rate on all ports, plus TunnelSec technology which includes MACsec (802.1AE), IPsec, and VXLANsec. It uses AES-256-GCM encryption for secure data center interconnect and multi-hop encrypted tunnels without performance degradation.

Q: Can the 400GbE QSFP-DD ports be used for 100GbE connectivity?
A: Yes, the 4 x QSFP-DD ports are flexible and support both 100GbE and 400GbE optics, providing deployment flexibility for mixed-speed environments and future-proofing for bandwidth growth. They can also be configured for 200G operation when interoperating with 100G QSFP and 25G SFP ports.

Q: Is this switch suitable for data center spine or leaf deployment?
A: Yes, the DCS-7280CR3MK-32D4S-FLX-F is designed for both spine and leaf roles in data center architectures. Its high port density, deep buffers, and support for VXLAN, EVPN, MLAG, and ECMP make it ideal for modern leaf-spine topologies, cloud data centers, and overlay network designs.

Q: What license is included with the FLX-F model?
A: The FLX suffix indicates the switch includes the FLX-Lite license, which provides full routing capabilities up to 256K routes, EVPN, VXLAN, Segment Routing, and base MPLS LSR functionality. For larger routing tables (up to 2M routes) and advanced MPLS-LER/LSR features, the full FLX license is available separately.

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