Converting QoS policy specification into fuzzy logic parameters

The policy based management is a technique to coordinate the configuration of several equipments in a network based on Service Level Agreements(SLAs). These abstract policies are difficult to be interpreted and implemented by network equipments, that requires absolute values, and fuzzy logic has been showed to be efficient to represent abstract values. A fuzzy controller should implement a dynamic provisioning mechanism used to reconfigure all nodes according ingress traffic. This work proposes a methodology to map policies in fuzzy parameters to achieve the desired QoS in a DiffServ domain. The functionality are demonstrated by simulation of an IP Telephony application crossing a DiffServ domain.