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Re: [ns] How to measure the queue length at a node?



On Wednesday 01 August 2001 13:27, zhilin su wrote:
> Hi, all,
>
> I am new to NS. But I have a simple question as
> follows:
>
> I built a topology with 3 nodes as a line. Then I
> attached a UDP agent with a Expoo traffic generator to
> one end of it and a Null sink to the other. When the
> network running, how can I measure the queue length at
> the middle node? Thanks

Use a Queue Monitor.  Described in chapter 22 of the ns Manual, 
section 22.6 specifically.

You will probably need a "record" function.  See Marc Greis' 
tutorial, section "VIII.  Creating Output Files for Xgraph".  The 
whole tutorial is available at:
	http://www.isi.edu/nsnam/ns/tutorial/

-- 
Brian Lee Bowers	|	RADIANT Team (Summer Intern)
bowersb@lanl.gov	|	Los Alamos National Laboratory