[ns] enque and deque the queue of a node in trace file

[linda rep]

Hello ,

in my simulation i have the  length of the queue of each node is 50, but in
my trace file i have not (+) enque and ( - )deque i don't know how enabling
this. in the tcl script i have:agentTrace OFF -routerTrace OFF -macTrace ON
-movementTrace OFF.

Is there any way to know how many packet in the queue?

Thanks in advance;
Regards,

Lynda