The Cisco® I-Flex approach combines shared port adapters (SPAs) and
SPA interface processors (SIPs), providing an extensible design that enables
service prioritization for data, voice, and video services. Enterprise and
service provider customers can take advantage of improved slot economics
resulting from modular port adapters that are interchangeable across Cisco
routing platforms. The I-Flex design maximizes connectivity options and offers
superior service intelligence through programmable interface processors that
deliver line-rate performance. I-Flex enhances speed-to-service revenue and
provides a rich set of quality of service (QoS) features for premium service
delivery while effectively reducing the overall cost of ownership.