Re: [ns] Blocking a DropTail queue

[kunchanl <kunchanl@pollux.usc.edu>]

My guess is that blocked_ only gets bound in C++ space 
when queue is initialized (i.e. when simulation starts).

Kun-chan Lan

On Fri, 10 Aug 2001, Gustavo Da Costa wrote:

> Hi,
> 
> Does anybody know how to set the variable blocked_ for a DropTail queue
> at a specified time?
> 
> If I use:
> 
> $ns duplex-link $n0 $n1 10ms DropTail
> set q [[$ns link $n0 $n1] queue]
> $q set blocked_ 1
> 
> Then the queue is successfuly blocked at the beggining of the
> simulation. However if I try to block the queue later instead of at the
> start of the simulation:
> 
> $ns at 6.0 "$q set blocked_ 1"
> 
> Then there are no error messages but the queue is never blocked.
> 
> Any ideas would be greatly appreciated.
> 
> Cheers,
> 
> Gustavo.
> 
> 
> 
> 
>