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 12000 Series One-Port OC-48c/STM-16c POS/SDH ISE Line Card (1-Port OC-48 POS ISE) provides an extensive set of service-enabling edge features while performing at line-rate simultaneously on all ports.The 1-Port OC-48 POS ISE features the Cisco 12000 Series IP Services Engine (ISE) technology - a unique, edge-optimized, programmable adaptive network-processing feature that combines the hardware performance of application-specific integrated circuits (ASICs) with the flexibility of software. It enables a broad range of edge services that also accommodates future customer requirements with simple software upgrades instead of costly hardware replacements.Combined, the Cisco 12000 Series Routers and ISE technology uniquely offer the advantages of a distributed architecture to 10G-enable the high-speed service provider edge by delivering linear performance scalability, a complete range of chassis form-factors, application-optimized line cards, and 10 Gbps uplinks. Together, they offer the industry's only per-customer, guaranteed priority packet delivery for the edge by providing thousands of queues that can be dynamically assigned per port, unlimited input and output filters per port, and the most comprehensive set of quality-of-service (QoS) features available today, including packet classification, congestion avoidance, and low-latency queuing (LLQ).