Distributing large video files or operating system images over the Internet requires file servers with high bandwidth and large storage capacity. Overlay networks, including content distribution networks (CDN) and peer-topeer (P2P) systems, are promising network models for large file distributions. Both CDN and P2P leverage bandwidth and storage resources between content distribution servers an...

The paper presents a survey of the current replica placement strategies on surrogates in Content Delivery Networks and proposes novel ways in which mining social networks can help derive useful insights in predicting user traffic on websites thereby helping CDNs to prepare for the abnormal spurts and traffic outages (called Shashdot Effect or Flash crowds). In this paper, we present metrics to ...

IP anycast routes packets to the topologically nearest server according to BGP proximity. In the last years, new players have started adopting this technology to serve web content via Anycast-enabled CDNs (A-CDN). To the best of our knowledge, in the literature, there are studies that focus on a specific A-CDN deployment, but little is known about the users and the services that A-CDNs are serv...

The Content Delivery Networks (CDNs) federation, also named Content Distribution Internetwork (CDI) has been proposed by the CDI IETF Working Group, but currently there are not running examples. In this position paper we analyses the issues concerning this new research area and propose a possible architecture for a CDI.

W ith the emergence of broadband access networks and powerful personal computer systems, the demand for network-delivered full-motion streaming video is growing. While the traditional Web service model can be applied to IP-based streaming content, the user experience of quality does not compare favorably with cable, satellite, or broadcast television. On the other hand, current television broad...

Akamai o ers the largest Content Delivery Network (CDN) service in the world. Building upon its CDN, it recently started to offer High De nition (HD) video distribution using HTTP-based adaptive video streaming. In this paper we experimentally investigate the performance of this new Akamai service aiming at measuring how fast the video quality tracks the Internet available bandwidth and to what...

It is difficult to build contents delivery platform over the unstructured P2P network because the traffic generated by P2P clients are unmanageable. By applying percolation theory to propagate newly defined reverse-query messages over the unstructured P2P network, we propose novel contents delivery network architecture built over existing unstructured P2P network. We analyzed our algorithm and ...

We present CDN-on-Demand, a software-based defense that administrators of small to medium websites install to resist powerful DDoS attacks, with a fraction of the cost of comparable commercial CDN services. Upon excessive load, CDNon-Demand serves clients from a scalable set of proxies that it automatically deploys on multiple IaaS cloud providers. CDN-onDemand can use less expensive and less t...

The report provides a literature review of the state-of-the-art for content distribution. The report’s contributions are of threefold. First, it gives more insight into traditional Content Distribution Networks (CDN), their requirements and open issues. Second, it discusses Peer-to-Peer (P2P) systems as a cheap and scalable alternative for CDN and extracts their design challenges. Finally, it e...