Re: RED parameters

[Massimo Pegorer - stage <pegorer@tvdsp2.vim.tlt.alcatel.it>]

Pedram Bagheri wrote:
> 
> Hi
> 
> I am running a simulation where I am using RED at the nodes. My quastion
> is:
> how is it posible to change the RED parameters(maxp, minth and maxth)i ns?
> I am going to keep maxp fixed(0.2) and let maxth=3*minth and vary minth
> from 5 to 100.
> 

If you want to set parameters for all your RED queues, you
could set them at the beginning of your tcl file with:
Queue/RED set thresh_ "minth value"
Queue/RED set maxthresh_ "maxth value"
Queue/RED set linterm_ "1 / maxp value"

Max.

REF:
ns-default.tcl:

	Queue/RED set thresh_ 5
	Queue/RED set maxthresh_ 15
	...
	Queue/RED set linterm_ 10

red.cc:

	bind("thresh_", &edp_.th_min);		    // minthresh
	bind("maxthresh_", &edp_.th_max);	    // maxthresh
	...
	bind("linterm_", &edp_.max_p_inv);

red.h:
	double th_min;		/* minimum threshold of average queue size */
	double th_max;		/* maximum threshold of average queue size */
	double max_p_inv;	/* 1/max_p, for max_p = maximum prob.  */