Abstract: The network size is evolving rapidly now-a-days and there is a need to provide high degree of Quality of Service (QOS) to the users.In this study, the technique of optimal routing is used to determine the best business decision for link capacity upgradation . Business decision is used to find out the time beyond which the existing network link capacity will not provide the required level of QOS to users and the time by which capacity of link should be upgraded. This helps to increase the revenue and also to maintain the optimal QOS that the users trust on the network. Before admitting a flow of data its flow specification must be checked and it must be optimally routed. Delay is an element which has to be reduced to provide better QOS. To reduce this delay, the link utilization has to be decreased. Link utilization is defined as the ratio between total flow demand and link capacity. This can be achieved by limiting the flow of data in the corresponding link, through increase in cost of the link. We propose a new methodology to identify the optimal time period for deploying network devices for link bandwidth upgradation. This is achieved through optimal routing technique by identification and cycle deduction.
P. Ganesh Kumar and K. Thyagarajah , 2007. A Framework for Upgradation of Network Link Bandwidth to Network Service Provider . Asian Journal of Information Technology, 6: 685-691.