@inproceedings{ed83e9b5a90f464e81961ed0703eac49,
title = "Investigating Inter-NF Dependencies in Cloud-Native 5G Core Networks",
abstract = "The increasing popularity of cloud-native approaches has led to their wide adoption in the telecommunications industry. 5G Core Networks (5GCN) are developed to take advantage of cloud-native design principles, with a high degree of functional decomposition and distributed deployment. This results in implications in inter-Network Function (NF) dependencies that need to be studied. This work focuses on investigating the effect that these dependencies have in how the resources are utilized from the 5GCN NFs. We consider a private cloud environment where a reference 5G Core implementation, namely Free5GC, is deployed and orchestrated with Kubernetes. In addition, a gNB UE Emulator is developed to allow for the execution of different control plane procedures. Our evaluations highlight the importance of catering for the inter-NF dependencies in achieving efficient resource utilization as well as avoiding deployments where a single NF can bottleneck the entire 5GCN.",
keywords = "5G, Cloud-Native, Kubernetes, VNF",
author = "Endri Goshi and Michael Jarschel and Rastin Pries and Mu He and Wolfgang Kellerer",
note = "Publisher Copyright: {\textcopyright} 2021 IFIP.; 17th International Conference on Network and Service Management, CNSM 2021 ; Conference date: 25-10-2021 Through 29-10-2021",
year = "2021",
doi = "10.23919/CNSM52442.2021.9615565",
language = "English",
series = "Proceedings of the 2021 17th International Conference on Network and Service Management: Smart Management for Future Networks and Services, CNSM 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "370--374",
editor = "Prosper Chemouil and Mehmet Ulema and Stuart Clayman and Muge Sayit and Cihat Cetinkaya and Stefano Secci",
booktitle = "Proceedings of the 2021 17th International Conference on Network and Service Management",
}