The Cisco Route Switch Processor 4 is the powerful centralized engine that is designed to accommodate programmable deployment models and convergence of advanced Layer 2 and Layer 3 services. It addresses the evolving requirements for converged service provider networks, delivering a variety of advanced technologies for Mobile xHaul, Radio Access network Aggregation (RAN), Carrier Ethernet and Data-Center-Interconnect (DCI), such as MPLS, Segment Routing, Segment Routing Traffic Engineering, advanced Ethernet VPN technologies. The RSP4 helps service providers add innovative traffic management, packet switching, intelligent routing and service creation features.