Service providers need to scale their IP networks with high-speed optical interfaces to provide the throughput necessary for delivering next generation IP services. The Cisco OC-192c/STM-64c packet over SONET/Synchronous Digital Hierarchy (POS/SDH) Line Card delivers unmatched forwarding performance and an extensive Internet Protocol and Multiprotocol Label Switching (IP+MPLS) feature set to scale core networks to 10Gbps speeds.The Cisco OC-192c/STM-64c POS Line Card offers guaranteed priority packet delivery for both IP and MPLS applications. This includes the Modified Deficit Round Robin (MDRR) queuing algorithm (enables low latency queuing for high priority applications such as voice over IP), unique priority-based Weighted Random Early Detection (WRED) (provides congestion control), and packet sequence integrity that is not compromised under any condition. Peering and transit services are supported with industry leading features such as advanced Border Gateway Protocol (BGP) policy routing, input rate limiting, and output rate shaping and per port accounting. Also supported is the industry's only element management system, the Cisco GSR Element Manager.