file 위치 : /ns-2.29/indep-utils/cmu-scen-gen/setdest That's because in the new version you have to specify the maximum speed using -M and not with -s. The option -s is used to specify the speed type: uniform, normal. You can also specify the minimum speed using -m. These are the options: -s speed type (uniform, normal) -m minimum speed > 0 -M maximum speed -P pause type (constant, uniform) -p pau..