SDN/legacy Hybrid Network Control System

The widespread replacement of traditional network to SDN is still restricted in the enterprise environment, and hybrid network where SDN and legacy network appliances coexist by necessity complementing each other is deployed usually. To answer the network parts integration issues, the hybrid network control system is developed and discussed in the present work. Thorough network topology assessment (BDDP complemented with LLDP/SNMP based legacy network discovery) and the possibility of converting SDN flow rules into the configurations of legacy appliances enables to orchestrate hybrid network as well as to enforce the network security.