A content delivery network (CDN) is a distributed infrastructure to deliver digital contents to
end users with high performance. CDNs are critical to provide and protect the availability of …

Peer-assisted content delivery networks have recently emerged as an economically viable
alternative to traditional content delivery approaches: the feasibility studies conducted for …

The emerging class of wide-area streaming analytics faces the challenge of scarce and
variable WAN bandwidth. Non-adaptive applications built with TCP or UDP suffer from …

Low latency analytics on geographically distributed datasets (across datacenters, edge
clusters) is an upcoming and increasingly important challenge. The dominant approach of …

Maintaining the highest levels of availability for content providers is challenging in the face
of scale, network evolution and complexity. Little, however, is known about failures large …

The Covid-19 pandemic has led to unprecedented changes in the way people interact with
each other, which as a consequence has increased pressure on the Internet. In this paper …

Large content providers build points of presence around the world, each connected to tens
or hundreds of networks. Ideally, this connectivity lets providers better serve users, but …

Content Hypergiants deliver the vast majority of Internet traffic to end users. In recent years,
some have invested heavily in deploying services and servers inside end-user networks …

The Tier-1 ISPs have been considered the Internet's backbone since the dawn of the
modern Internet 30 years ago, as they guarantee global reachability. However, their …

DNS is a vital component for almost every networked application. Originally it was designed
as an unencrypted protocol, making user security a concern. DNS-over-HTTPS (DoH) is the …