YouTube all around: Characterizing YouTube from mobile and fixed-line network vantage points

YouTube is the most popular service in today´s Internet. Its own success forces Google to constantly evolve its functioning to cope with the ever growing number of users watching YouTube. Understanding the characteristics of YouTube´s traffic as well as the way YouTube flows are served from the massive Google CDN is paramount for ISPs, specially for mobile operators, who must handle the huge surge of traffic with the capacity constraints of mobile networks. This papers presents a characterization of the YouTube traffic accessed through mobile and fixed-line networks. The analysis specially considers the YouTube content provisioning, studying the characteristics of the hosting servers as seen from both types of networks. To the best of our knowledge, this is the first paper presenting such a simultaneous characterization from mobile and fixed-line vantage points.