Junos supports YANG-based abstraction to orchestrate guest network functions (GNFs), using single touchpoint. In the single touchpoint method, the SDN controller (for example, OpenDaylight or ODL) communicates only with the base system (BSYS). The BSYS receives the RPC requests from the ODL controller, parses the RPC, and then forwards the adequate RPC to the JDM (based on scripts available at the BSYS). After receiving the response from the JDM, the BSYS parses and forwards the response back to the ODL.
