PRISM, is a SDN orchestration platform that abstract standard routing and switching over a clustered set of switches. PRISM lets centralized logical routing instances control any set of geo-distributed or local data planes. PRISM is engineered to take network OS functionality out of the white-boxes. By abstracting standard Linux networking stack on a set of supported virtual or physical Openflow switches, it is able to combine line rate performance with extremely flexible and familiar management tools. It operates on 1:N model, so the same software can centrally control and scale 1 to N switches elastically. PRISM also provides the choice of deploying it as NFV by utilizing Openflow V-switches.
PRISM has many use-cases :
1) Policy-driven, dynamic data center gateway: PRISM gives the option to deploy solid, pure OpenFlow-based L3 gateways to the software-defined data center. It also works on top of any vendor L2 fabric. PRISM data-center edge solution allows dynamic creation and management of centralized multi-tenant routing entities at scale needed in modern data-centers. By utilizing advanced features like table-typing, it provides a solid and robust alternative to traditional equipments with a software defined approach
2) Flexible software-defined provider or customer edge: PRISM is stackable and can readily replace traditional IP/MPLS label edge routers (LERs) or label switch routers (LSRs). PRISM can also act as a VLAN to MPLS translation edge between customer’s L2 and provider MPLS domains.This makes PRISM an extremely flexible framework for vPE or vCPE environments and provides a seamless upgrade path from legacy to SDN environments in enterprises or WAN.