Comparisons of Different VPC Capacity Management Methods in ATM Networks

The fact that there is a lack of comparisons between methods for VPC management makes it important to evaluate fundamentally different methods. We have tried to find representatives of different ways of calculating the capacity distribution. A central approach uses global information about demands and resources [1, 2], while decentralised approaches can be categorised into iterative and local. The local approaches that we have evaluated [3, 4] uses the number of ongoing connections to decide how much capacity that is needed during the next updating period. An iterative approach uses a distributed way of calculating the capacity distribution [5, 6, 7]. By evaluating these, we have then been able to do a survey over the performances.