SPA: Smart Placement Approach for Cloud-service Datacenter Networks

Business disciplines expand rapidly, so does the tendency to rely on computer applications and its varying services to support such expansion. Often, this is achieved through introducing physical network infrastructures that provide the appropriate environ- ments to run such applications. The required services change rapidly, and accordingly its resource requirements. In most cases, this may require building new physical networks which could lead to low utilization rates and high service-costs. A promising ap- proach that is becoming increasingly popular to overcome such a problem is known as Virtual Datacenter Networks (VDNs). These VDNs are usually hosted over physical networks; overlaying its resources to gain the dynamic required services. Cloud-service Datacenter Networks (CDNs) can provide such a service under a delivery model that is called Infrastructure as a Service (IaaS). In this paper, we present a Smart Placement Approach (SPA) that provides for smart placement maps of VDNs over CDNs. In this, we point out that choosing the placement maps for such VDNs should satisfy its requirements while: maintaining load-balancing over the hosting CDNs, guaranteeing its Quality of Service (QoS) levels, and assuring low placement costs