The current researches on traffic performance are commonly undergone by using network's state method

that we calculate the performance index of each state of network and then obtain the mean value of performance

by using the state probability.This paper discusses the effect of components' reliability on components' performance

and presents an approach

named by components' state method

which is based on the performance of components' unreliability.It can use the current performance analysis method of network with reliable components

and meantime can even analyze the breaking traffic because of components' failure

which can be used to analyze the performance of self-healing network.