Revisiting core traffic growth in the presence of expanding CDNs
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Arquitectura y Tecnología de Computadoras; Electrónica; Ingeniería Telemática; Tecnología Electrónica; Teoría de la Señal y las ComunicacionesPatrocinadores
The research leading to these results has received funding from the European Commission for the H2020-ICT-2016-2 METRO-HAUL project (G.A. 761727) and it has been partially funded by the Spanish national project ONOFRE-2(TEC2017-84423-C3-1-P, MINECO/AEI/FEDER, UE).Realizado en/con
Universidad Politécnica de CartagenaFecha de publicación
2019-03-08Editorial
ELSEVIERRevisión por pares
SiPalabras clave
CDNNetwork evolution
Traffic growth
Resumen
Traffic growth forecasts announce a dramatic future for core networks, struggling to keep the pace of traffic augmentation. Internet traffic growth primarily stems from the proliferation of cloud services and the massive amounts of data distributed by the content delivery networks (CDNs) hosting these services. In this paper, we investigate the evolution of core traffic in the presence of growing CDNs. Expanding the capacities of existing data centers (DCs) directly translates the forecasted compound-annual-growth-rate (CAGR) of user traffic to the CAGR of carried core link traffic. On the other hand, expanding CDNs by building new geographically dispersed DCs can significantly reduce the predicted core traffic growth rates by placing content closer to the users. However, reducing DC-to-user traffic by building new DCs comes at a trade-off with increasing inter-DC content synchronization traffic. Thus, the resulting overall core traffic growth will depend on the types of services supported ...
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