As people become more and more connected to each other through Internet services, the needs to ensure reliability in Internet connection become unavoidable. To serve data traffic with varying degree of importance when maintaining the lowest operational expense is one of challenges faced by network engineers. Critical data traffic must be protected from termination caused by unwanted failures that could happen along the data path, but at the same time, the operational expense spent on the path protection must be kept as minimal as possible. It ensures that the Internet provider can still gain reasonable profits from its services. In this study, the operational expense of the path protection system with partial bandwidth based on the toggling dual cost (TDC) algorithm aims to be optimized. The algorithm is modeled by a Petri net, a powerful tool for modeling asynchronous and concurrent systems. The model is analyzed based on the Petri net properties, namely, boundedness and liveness. Based on boundedness and liveness, the proposed model can have no overflow or deadlock problem in its implementation. The network engineers can optimize the TDC algorithm to maximum efficiency, in order to gain reasonable profits without sacrificing the network reliability.
關聯:
Wireless Personal Communications，Vol. 90，P.1239-1259
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