Arista DCS-7280CR3K-32P4-F | 7280R3 32-Port 100G Switch, 4x 400G OSFP, Front-to-Rear

Q: What deployment scenarios is the DCS-7280CR3K-32P4-F best suited for?
A: This switch is ideal for high-density data center spine-leaf architectures, large-scale cloud environments, and edge deployments requiring massive routing tables and ultra-low latency. The 8 GB deep buffer handles transient congestion and TCP incast events in oversubscribed topologies.

Q: What routing protocols does this switch support?
A: The DCS-7280CR3K-32P4-F supports full Layer 3 routing including BGP, OSPF, IS-IS, MPLS (LDP, RSVP-TE, BGP LU), Segment Routing (SR-TE), EVPN, VXLAN, and 512-way ECMP for advanced traffic engineering and load balancing.

Q: What does the K-variant FlexRoute feature provide?
A: The K-variant offers massive routing table capacity with over 5 million IPv4 unicast routes, over 5 million IPv6 routes, 384K MAC addresses, and over 100,000 ACL rules using algorithmic ACLs—ideal for large internet peering routers and data center gateways.

Q: Can the QSFP28 ports be used at speeds lower than 100G?
A: Yes, all 32x 100GbE QSFP28 ports support flexible breakout configurations to 50GbE, 40GbE, 25GbE, and 10GbE, allowing up to 96 total interfaces for maximum deployment flexibility.

Q: What is the difference between the -F and -R airflow models?
A: The -F suffix denotes front-to-rear airflow (port side to fan side), while the -R model offers rear-to-front airflow. Select the airflow direction that matches your data center hot aisle/cold aisle cooling design.