In order to meet the demand of dual leaky bucket models for traffic flow

this paper proposes a bandwidth demand research program based on statistical network calculus theory.Making use of the advantages of the statistical network calculus in analyzing traffic delay performance

this program establishes a statistical model for the bandwidth demand of the dual leaky bucket model traffic flow on the basis of the relationship between delay and bandwidth and conducts in-depth research and analysis on traffic bandwidth demand.Numerical analysis results show that this program is effective and superior and has much value of reference for rational allocation of network bandwidth resource.