The proprietary nature of existing Content Delivery Networks (CDNs) means they are closed and do not naturally cooperate. A CDN is expected to provide high performance Internet content delivery through global coverage, which might be an obstacle for new CDN providers, as well as affecting commercial viability of existing ones. Finding ways for distinct CDNs to coordinate and cooperate with othe...

We are witnessing two trends in Web content access: (a) increasing amounts of dynamic and personalized Web content, and (b) a significant growth in “on-the-move” access using various mobile resource-constrained devices by nomadic users. Web caching and the content distribution network (CDN) are popular solutions for improving Web access latency and have the effect of moving content closer to th...

Network Function Virtualization (NFV) has increasingly gained importance to address some emerging networking challenges like agility and cost-effectiveness. NFV enables run Virtualized Functions (VNF) on top of any generic, Commercial-Off-The-Shelf (COTS) hardware, anytime anywhere in the network. Specific service providers offer VNFs prospective network providers. Service publish dedicated mar...

Traffic engineering (TE) is a method of managing and controlling IP networks efficiently. This paper proposes a dynamic TE architecture that provides a QoS (Quality of Service) guaranteed service in addition to an existing best-effort service in a content delivery network (CDN). This architecture selects the optimum route and server for a user request based on the load of the network and conten...

This paper discusses user specific request redirection for personalizing responses to user requests in Content Delivery Networks (CDN). User specific request redirection refers to the process of redirecting user requests to a server on the content delivery network based on user specific information carried in the user request. Current redirection schemes in CDNs are either based on the authorit...

Content delivery networks (CDNs) such as Akamai and Mirror Image place web server clusters in numerous geographical locations to improve the responsiveness and locality of the content it hosts for end-users. However, their services are priced out of reach for all but the largest enterprise customers. An alternative approach to content delivery could be achieved by leveraging existing infrastruc...

Distributing digital media contents to a large number of users in a cost-effective manner is a challenging task for the content provider. Traditionally, the content provider either deploys a set of high capacity servers or contracts a content delivery network (CDN) to transport contents to users. The first approach requires a significant investment to set up and administer the servers. While in...

An effective solution to delivery static contents are the Content Delivery Networks (CDNs). However, when the network size increases, they show limits and weaknesses related to their size, dynamic nature, and due to the centralized/heirarchical algorithms used for their management. Decentralized algorithms and protocols can be usefully employed to improve their efficiency. A bio-inspired algori...

Web content delivery is one of the most important services on the Internet. A secure access to websites is typically granted via SSL. However, traffic hijacking on the network layer may break this security model and makes additional protective mechanisms necessary. This paper presents a first quantitative analysis of the protection of web servers by RPKI, a recently deployed Resource Public Key...

Recent years have witnessed an explosive growth in multimedia streaming applications over the Internet. Notably, Content Delivery Networks (CDN) and Peer-to-Peer (P2P) networks have emerged as two effective paradigms for delivering multimedia contents over the Internet. One salient feature shared between these two networks is the inherent support for path diversity streaming where a receiver re...