A Case for Peering of Content Delivery Networks

TL;DR

This paper advocates for peering among Content Delivery Networks (CDNs) to enhance cooperation, scalability, and QoS adherence through an open, service-oriented architecture enabling resource sharing across networks.

Contribution

It introduces a novel open, scalable, service-oriented architecture to facilitate interconnection and cooperation among CDNs, addressing current isolation and QoS challenges.

Findings

Proposes an architecture for CDN peering and cooperation.

Supports resource sharing among multiple CDNs.

Enhances scalability and QoS management.

Abstract

The proliferation of Content Delivery Networks (CDN) reveals that existing content networks are owned and operated by individual companies. As a consequence, closed delivery networks are evolved which do not cooperate with other CDNs and in practice, islands of CDNs are formed. Moreover, the logical separation between contents and services in this context results in two content networking domains. But present trends in content networks and content networking capabilities give rise to the interest in interconnecting content networks. Finding ways for distinct content networks to coordinate and cooperate with other content networks is necessary for better overall service. In addition to that, meeting the QoS requirements of users according to the negotiated Service Level Agreements between the user and the content network is a burning issue in this perspective. In this article, we present an open, scalable and Service-Oriented Architecture based system to assist the creation of open Content and Service Delivery Networks (CSDN) that scale and support sharing of resources with other CSDNs.