Inspect and control traffic at a network boundary with the Cisco 8010 Secure Firewall appliance. SD-AR1K-8G1X2Y4A provides a defined interface layout for security deployments that need to connect multiple network segments while retaining higher-speed links for aggregation, core connectivity, or traffic-heavy protected zones. The appliance is suited to perimeter, data-center edge, and segmented enterprise network designs where the firewall is the policy enforcement point between networks. The hardware configuration includes 12 × 1 GbE interfaces, 12 × 1/10 GbE interfaces, and 4 × 1/10/25 GbE interfaces. That combination lets architects allocate 1 GbE connections to existing network segments while reserving 10 GbE and 25 GbE-capable interfaces for higher-bandwidth connections. Interface planning can account for current link speeds without requiring every attached network to operate at the same rate. This Cisco 8010 configuration is distinguished by its 12/12/4 interface allocation: twelve 1 GbE connections, twelve interfaces supporting 1 GbE or 10 GbE operation, and four interfaces supporting 1 GbE, 10 GbE, or 25 GbE operation. Verify the required interface counts and link-speed requirements against the firewall placement before deployment, particularly where protected uplinks and segmented networks share the same appliance.