Arista DCS-7280CR3-36S-R | 7280R3 36-Port 100G Switch, 2x 400G

Q: What is the difference between -F and -R airflow variants?
A: The -R suffix indicates rear-to-front airflow, where air enters from the fan side and exhausts through the port side. This is ideal for hot-aisle/cold-aisle deployments. The -F variant provides front-to-rear airflow in the opposite direction.

Q: Does this switch support full Layer 3 routing capabilities?
A: Yes, the 7280CR3-36S-R is a full Layer 3 switch router supporting BGP, OSPF, IS-IS, MPLS, Segment Routing, VXLAN, EVPN, and 512-way ECMP, making it suitable for internet peering, data centre interconnect, and advanced routing scenarios.

Q: Can the 100G QSFP28 ports be broken out to lower speeds?
A: Yes, the QSFP28 ports support flexible breakout configurations including 4x25G, 4x10G, 2x50G, and 1x40G, providing deployment flexibility for mixed-speed environments.

Q: What licensing model does Arista use for the 7280R3 series?
A: Arista EOS software is included with the hardware at no additional cost. There are no feature licenses or subscription fees required for Layer 2/3 functionality, routing protocols, or management features.

Q: Is this switch suitable for high-frequency trading or low-latency applications?
A: Yes, with 3.8µs store-and-forward latency, deep buffers to handle microbursts, and deterministic performance, the 7280CR3-36S-R is well-suited for latency-sensitive applications including financial trading, content delivery, and high-performance computing.