Place application delivery and load-balancing capacity at the traffic-control tier with the Cisco RD-5208S-12G-HD. This configuration pairs the Alteon D-5208S platform designation with HPP Deliver and a stated 12 Gbps throughput level. It suits environments that need a defined application-delivery performance tier rather than an unspecified appliance configuration. The 12 Gbps figure is the primary sizing value associated with this ordering code. Within an application delivery architecture, this platform provides a location for traffic distribution and load-balancing functions ahead of application services. The stated throughput rating helps architects position the unit where aggregate application traffic must remain within a 12 Gbps capacity tier. Its purpose is application traffic handling, rather than access switching, routing, or endpoint connectivity. That distinction matters when selecting infrastructure for web applications, internal service pools, and other workloads that require application delivery control. The HPP Deliver designation differentiates this configuration by tying the D-5208S platform to its 12 Gbps delivery capacity. Use that designation when comparing configurations within the same application-delivery family, especially where throughput entitlement is the deciding technical requirement. Port layout, rack dimensions, SSL transaction capacity, monitoring limits, and management interfaces are not used here as selection criteria. The available product designation establishes the platform, HPP Deliver configuration, and 12 Gbps performance level.