DCCN density on resource utilization = 40% (when logically isolated) and 60% (when not logically isolated). Average resource availability response for DCCN = 38.46%, DCell = 33.33%, and BCube = 28.21%. From the validation analysis of the DCCN, the following results were obtained: average throughput (bytes/Sec) for DCCN = 40.00%, DCell = 33.33% and BCube = 26.67%. The QoS metrics considered in the analysis are: the service delay time, resource availability, throughput and utilization. The validation of the DCCN performance was carried out using trace files from Riverbed Modeller 17.5 in order to ascertain the influence of virtualization on server resource pool. Virtualization services such as resource allocation and task scheduling were employed in heterogeneous server clusters. In this paper, the architectural decomposition of a proposed DCCN was carried out while exploring its functionalities for grid performance. Such failure has been identified in the University of Nigeria datacenter network situated in the south eastern part of Nigeria. This is highly undesirable in Distributed Cloud Computing Networks (DCCNs) running mission critical services. Network failure in cloud datacenter could result from inefficient resource allocation scheduling and logical segmentation of physical machines (network constraints).
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