Arista DCS-7280SR3MK-48YC8A-S-R | 7280R3 48-Port 25G Switch, 8x 100G, MACsec

Q: What is the MACsec capability of this switch?
A: The DCS-7280SR3MK-48YC8A-S-R provides line-rate AES-256-GCM MACsec encryption across all 48x 25G and 8x 100G ports, enabling wire-speed secure connectivity at mixed speeds from 1G to 100G without performance degradation, ideal for securing data center interconnects and sensitive traffic.

Q: What routing scale does this model support?
A: This is a large route table variant (K series) supporting over 2 million IPv4 routes with flexible forwarding profiles. The L3-Host-XL profile is supported on the 7280SR3MK-48YC8A models, making it suitable for internet peering, service provider edge, and large-scale cloud routing applications.

Q: Can the 100G QSFP ports be broken out?
A: Yes, the 8x 100GbE QSFP ports support flexible breakout configurations including 4x25G, 4x10G, 2x50G, and 1x40G modes, providing deployment flexibility for mixed-speed environments and enabling up to 80 total 25GbE ports when combined with the native SFP ports.

Q: What protocols and features does Arista EOS support?
A: Arista EOS provides comprehensive Layer 2/3 features including VXLAN, EVPN, MLAG, BGP, OSPF, MPLS, Segment Routing, IPsec, VXLANsec, LANZ microburst detection, Zero-Touch Provisioning, advanced ACLs, PTP/SyncE timing, and full integration with CloudVision for network-wide automation and telemetry.

Q: What is the difference between the -R and -F suffix models?
A: The -R suffix indicates rear-to-front airflow (fan side to port side), while -F models have front-to-rear airflow. The airflow direction must match your data center hot-aisle/cold-aisle design. This model uses redundant hot-swappable 1000W AC power supplies with reverse airflow configuration.