Network simulator is the technique that predicts the behavior of network and this simulation is observed by tracing of network. These tracing also divided into two categories: consistence and non-consistence. Several algorithms had proposed already but almost of them have inconsistence level of traces. Consistence traces produce the more approximate result for prediction. Here, the authors compare two effective algorithms that are GSM & MTA model based traces. They use GSM traces in GSM model and generate error containing sub-traces by MTA algorithm.