  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.
