Nowadays, the trend of Public Switched Telephone Network (PSTN) is changing from Hierarchical Alternate Routing to Nonhierarchical Alternate Routing which is more complex and flexible.
The purpose of this study lies in determining optimal routing using only one alternate path and link size while satisfying given end-to-end blocking probability in Nonhierarchical Alternate Routing.
On the otherhad, this method will be applied to 5-node and 8-node full meshed network.