Hi everyone, I'm trying to run the script run.tcl (~ns/ns-src/cmu/scripts/run.tcl) which comes with the cmu wireless extension to learn how it works, but I get the following error: invalid command name "Agent/IMEP" while executing "Agent/IMEP set sport_ 0" (file "run.tcl" line 62) Thanks in advance for your help. Fabio Nieri