Patent ID: 7180853

Claim:
A method for performing a connection admission control in an asynchronous network node, comprising the steps of: storing approximation parameters obtained by approximating a traffic parameter function defining an effective bandwidth of a connection, determining a value representing the effective bandwidth of a requested new connection by using the stored approximation parameters, increasing a value representing a total effective bandwidth by the determined value so as to obtain an increased value, and admitting the requested new connection, if the increased value representing the total effective bandwidth is not larger than the predetermined value, wherein the value representing the effective bandwidth of the requested new connection is determined by using the following equation, b eff =a·PCR α ·SCR β ·C γ wherein a, α, β, and γ represent the stored approximation parameters, PCR represents a peak cell rate of the requested connection, SCR a sustainable or average cell rate of the requested connection and C a link capacity, and wherein the approximation is a linear approximation of a function which is a logarithm of the traffic parameter function.