Virtual Path Slicing Engine

Software Defined Networks (SDN), Network Function Virtualization (NFV) and OpenFlow are techniques that provide high flexibility and can cut costs in packet data networks. Virtual Path Slicing (VPS) is a method that has evolved from studies on how to implement end to end QoS in packet networks.

RedZinc has implemented a VPS engine called VELOX™ that can steer traffic on the edge of the network based on the request of the application and coordinate this traffic steering with other autonomous systems.

In traditional 3GPP EPC the VPS engine can provide services to the application layer and invoke them using the Rx interface in the Policy Charging Rules Function (PCRF) of the EPC where differentiated QoS Class Identifier can be used for different service levels.