Arista DCS-7280CR3A-72-FLX-F | 7280R3A 72-Port 100G QSFP Switch, FLX License

Q: What does the FLX-Lite license include?
A: The FLX-Lite license provides full routing support with up to 256K routes, OSPF, ISIS, BGP, PIM, EVPN, VXLAN, Segment Routing, and base MPLS LSR functionality. It is ideal for spine and aggregation deployments requiring internet-scale routing without the overhead of advanced MPLS-TE or multi-million route tables.

Q: Can this switch be used for internet peering or DCI?
A: Yes, the 7280R3A Series with FlexRoute engine is specifically designed for internet peering and data center interconnect roles. It supports flexible forwarding profiles, advanced routing protocols, and deep buffers for lossless performance across high-latency or congested links.

Q: What optics are compatible with the QSFP ports?
A: The QSFP ports support a wide range of 10G, 25G, 40G, 50G, and 100G optics and DACs. This includes breakout configurations (e.g., 100G to 4x25G or 40G to 4x10G). Refer to the Arista transceiver compatibility guide for specific module support and EOS version requirements.

Q: Is stacking or MLAG supported?
A: Yes, the 7280R3A Series supports MLAG for Layer 2 redundancy and active-active uplink designs. For Layer 3, ECMP routing provides resilient, load-balanced connectivity across spine topologies.

Q: What is the difference between -F, -R, and -FLX SKU suffixes?
A: The -F suffix denotes front-to-rear airflow with dual AC power supplies. The -R suffix indicates rear-to-front airflow. The -FLX designation adds the FLX-Lite license for advanced routing up to 256K routes, while base models support standard Layer 2/3 features with more limited route scale.