  With recent developments in cloud computing, a paradigm shift from rather
static deployment of resources to more dynamic, on-demand practices means more
flexibility and better utilization of resources. This demands new ways to
efficiently configure networks.
  In this paper, we will characterize a class of competitive cloud services
that telecom operators could provide based on the characteristics of telecom
infrastructure through an applicable streaming service architecture. Then, we
will model this architecture as a cost-based mathematic model. This model
provides a tool to evaluate and compare the cost of software services for
different telecom network topologies and deployment strategies. Additionally,
with each topology it acts as a means to characterize the deployment solution
that yields the lowest resource usage over the entire network. These
applications are illustrated through numerical analysis. Finally, a
proof-of-concept prototype is deployed to shows dynamic properties of the
service in the architecture and the model above.
