RT Journal Article
T1 Service Shifting: a Paradigm for Service Resilience in 5G
A1 Malandrino, Francesco
A1 Chiasserini, Carla-Fabiana
A1 Landi, Giada
AB Many real-world services can be provided through multiple virtual network function (VNF) graphs, corresponding, e.g., to high- and low-complexity variants of the service itself. Based on this observation, we extend the concept of service scaling in network orchestration to service shifting, i.e., upgrading or downgrading the VNF graph to use among those implementing the same service. Service shifting can serve multiple goals, from reducing operational costs to reacting to infrastructure problems. Furthermore, it enhances the flexibility of service-level agreements between network operators and third party content providers (“verticals”). In this paper, we introduce and describe the service shifting concept, its benefits, and the associated challenges, with special reference to how service shifting can be integrated within real-world 5G architectures and implementations. We conclude that existing network orchestration frameworks can be easily extended to support service shifting, and its adoption has the potential to make 5G network slices easier for the operators to manage under high-load conditions, while still meeting the verticals’ requirements.
PB IEEE
SN 0163-6804
YR 2019
FD 2019-09
LK https://hdl.handle.net/10016/29127
UL https://hdl.handle.net/10016/29127
LA eng
NO This work is supported by the European Commission through the H2020 projects 5G-TRANSFORMER (Project ID 761536) and 5G-GROWTH (Project ID 856709 ).
DS e-Archivo
RD 5 jul. 2024