Performance Evaluation of Potential and Management based Network Admission Control Methods

In this paper we will introduce a congestion control method suitable for Carrier Ethernet Networks. Ethernet is seen as a replacement technology to ATM for provider access aggregation networks due to its cost efficiency, but it still lacks many necessary features to provide Quality of Service (QoS) as required from carrier-grade networks. This congestion control method is based on network potentials, which is a new concept to make the network traffic load aware and to implicitly prevent overload situations. Network potentials are scalar measures of the the network´s ability to carry traffic of services demanding QoS. We will compare this method with explicit resource reservation methods such as budget-based network admission control methods.