Service providers face the challenge of meeting customer demand by building scalable, feature-rich edge networks that can deliver value-added services such as Multiprotocol Label Switching virtual private networks (MPLS VPNs), voice, video, and data integration and tiered service offerings at all interface rates without compromising density or line-rate performance. The Cisco IP Services Engine (ISE) technology offers an extensive set of service-enabling edge features while protecting line-rate performance simultaneously on all ports.The 4-Port OC-12 POS ISE Cards feature the Cisco 12000 Series ISE technology - a unique, edge-optimized, programmable adaptive network processor that combines the hardware performance of application-specific integrated circuits (ASICs) with the flexibility of software. Together, the 12000 Series and ISE technology enable a broad range of edge services and accommodate future customer requirements with simple software upgrades instead of costly hardware replacements.