[altq 35] Re: ALTQ/CBQ calculations

[Kenjiro Cho <kjc@csl.sony.co.jp>]

These parameters are described in
http://www.aciri.org/floyd/papers/params.ps.Z
and
http://www-nrg.ee.lbl.gov/floyd/cbq/notes.html

-Kenjiro

G Muthukumar <muthu@wipro.wipsys.soft.net> said:
>> Hi all,
>> 	I recently started going thru the source code for ALTQ (and CBQ) and 
>> came across the function cbq_class_spec (rsvp_cbq.c). I came across few 
>> calculations in this function which I am not able to understand how they 
>> are derived:

>> 	1. cptime = ptime * (1.0 - f) / f;
>> 	2. maxidle = ((1.0 / f - 1.0) * ((1.0 - gton) / gton));
>> 	3. offtime = cptime * (1.0 + 1.0/(1.0 - g) * (1.0 - gtom) / gtom);

>> 	I am sure there is some basis for these calculations.

>> 	Could you please help me understand these calculations?

>> Thanks,
>> Muthu