Network Slice Robustness with Function Sets

Nour-El-Houda Yellas (1, 2) , Jeongku Choi (2) , Prosper Chemouil (2) , Stefano Secci (2) , Deep Medhi (3)

1 NPA - Networks and Performance Analysis
2 CEDRIC - ROC - CEDRIC. Réseaux et Objets Connectés
3 NSF - National Science Foundation [Arlington]

Network slicing allows leveraging virtualization techniques for the creation of multiple, logically-isolated network instances over a shared infrastructure. In general, it is composed of a set of unique network functions with a specific physical capacity request. In order to improve network and service robustness, ETSI has introduced the concept of Network Function Set where network functions are replicated and deployed in different physical nodes. In this paper, we integrate this concept of the network function set to implement load-balancing and efficient resource distribution in 5G networks by leveraging on an existing network slice design formulation without the network function set. This helps relieve the burden on the nodes and links and prevent QoS degradation, in particular during failures. We describe how the baseline approach is impacted for the placement of network functions. We then show that our approach improves load balancing and latency with respect to the baseline solution.

Mots clés: Network Function (NF); NSDP (Network Slice Design problem); Network Slicing (NS); NF set; load-balancing

Domaines: Réseaux et télécommunications [cs.NI]

Nour-El-Houda Yellas, Jeongku Choi, Prosper Chemouil, Stefano Secci, Deep Medhi. Network Slice Robustness with Function Sets. IEEE/IFIP Network Operations and Management Symposium (NOMS 2024), May 2024, Séoul, South Korea. ⟨hal-04429291⟩