[ns] qtrace

[Agissilaos Ziotopoulos <aziot@engin.umich.edu>]

				Hi
Does anybody know what the qtrace variable in the QueueMonitor object
represent?What is the default value?
I use the following code 
"set q($i) [new QueueMonitor]
set q($i) [$ns monitor-queue $n($i) $n([expr $i+1]) 0]"  
and get the error
can't read "link_(0:1)": no such variable
    while executing
"$link_([$n1 id]:[$n2 id]) init-monitor $self $qtrace $sampleInterval"
    (procedure "_o3" line 3)
    (Simulator monitor-queue line 3)
    invoked from within
"$ns monitor-queue $n($i) $n([expr $i+1]) 0"

The links between nodes are normally created.Do you have any idea where it
comes from?
				Thanks
				Ayis


--
"Provability is a weaker notion than truth, no matter what axiom system is
involved ... "

Kurt Godel (1906-1978)