4. Conclusion

Since their arrival in the 1980s, IP networks have never ceased to evolve. From transport networks with no guarantees, IP networks can now support services with high quality of service requirements (voice, video, synchronization, etc.), thanks to new technological contributions in terms of both protocols and equipment hardware and software architectures.

Today, customers are increasingly demanding on-demand services, delivered quickly and flexibly. The need for network programming is therefore essential to meet this new demand. This transformation of networks requires new architectures to be built using new technologies. Instead of being configured and operated by humans, the network becomes application-driven. Applications can communicate via interfaces with network equipment, or via network controllers (SDN controllers) offering generally more advanced functionalities...