Hi ! I have read the document which I attached. However, I still don't know clearly the meaning of these lines below : (puts "Loading connection pattern ..." ) source "../$traffic/$traffic-$senders-$receivers-2-256.aodv.$nodes" (If I chance this path like : source "/home/mylaptop/traffic/cbr1", is it ok? ) (puts "Loading scenarios file..." ) source "../scen-1500x300/scen-1500x300-$nodes-$pausetime-$mobility-$scenario" (If I change this path like : ource "/home/mylaptop/traffic/cenario1", is it ok ?) If anyone have implemented MAODV successfully, please explain clearly about these lines. Thanks Vo