METHOD FOR LOGICAL NETWORK DESIGN FOR MULTISERVICE NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a method for designing and optimizing a multirate ATM network by integrally using a nonasymptatic analysis method and a asymptotic analysis method. SOLUTION: One price of routing for a virtual path inside a network 110 between communication device 105-1 and 105-2 is provided with nodes from 130-1 to 130-3 and links 140-1, 140-3, 140-5 and 140-7. Then, the blocking probability of the subset for the link of this set is determined, the sensitivity of network performance is determined as a function of load requested for that network, and that network performance is adjusted based on the sensitivity and the blocking probability. In this case, the asymptotic approximation is applied to both the network loss probability and the network sensitivity for applying their solutions. Next, a global optimizing is applied by using the repetitive steepest ascent procedure, and the virtual path routing and capacitance allocation of set are provided. Thus, when handing the link of wide band width, the complexity of calculation can be canceled.