[ns] Fw: Is this a bug of NS?

[zhengyq@sdp.ee.tsinghua.edu.cn (Zheng Youquan)]

Sorry for a mistake in the previous mail, it should be:
 
 when I use 
     $ns at 0 "$tcp1 tracevar cwnd_"
     $ns at 0 "$tcp2 tracevar cwnd_"
 in .tcl file, then the flow 2 is better.
 
 while,
 when I use 
     $ns at 0 "$tcp2 tracevar cwnd_"
     $ns at 0 "$tcp1 tracevar cwnd_"
 in .tcl file, then the flow 1 is better.