Lawrence Horvath wrote:
have you considered percentages?
Using percentages is equivalent to using the corresponding values.
It doesn't solve my problem.
or using a script to inject ips into
a tables based queue setup?
I already use a script to generate the pf.conf file, but I cannot
understand what do you mean with "tables based queue".
How can it change the way the bandwidth in excess is distributed between
queues?
Bye.
On 16/04/07, Federico Giannici <[EMAIL PROTECTED]> wrote:
As there was no reply to this email of mine, anybody can tell me if
there is some other place where I can submit this question?
At least, anybody can tell me if my theory about bandwidth assignments
is wrong?
Thanks.
Federico Giannici wrote:
> I have a problem creating a policy to make a fair use of available
> bandwidth in a situation with a lot of potential users.
>
> We have a certain number of users, each one with a committed bandwidth
> of X or Y. We setup a queue system with an HFSC queue for each user,
> with a bandwidth ("linkshare" parameter) proportional to X or Y.
>
> This system doesn't seem to work in a fair way: when an user does a
HUGE
> download with a very large number of packets and bytes per second, it
> steals almost all bandwidth to the other users requiring only a little
> of bandwidth.
>
> It seems that the borrowed bandwidth is distributed to the queues based
> on the amount of required packets (or bytes). Indeed I'd like that the
> bandwidth is distributed strictly proportional to the assigned
bandwidth.
>
> Let's make and example:
> Both users A and B have an assigned bandwidth of 1 bps.
> User A currently requires 4 bps.
> User B currently requires 100 bps.
> There are currently available 10 bps.
>
> I'd like that the 10 bps would be equally distributed to both users (as
> they have the same assigned bandwidth), so both had 5 bps. User A
uses 4
> bps and leaves 1 bps to user B that so uses 6 bps.
>
> Indeed it seems that, as user B requires 25 times more bandwidth of
user
> A, then it is assigned almost ALL bandwidth, and user A is not able to
> use more then it's committed 1 bps, and so 3 out of 4 bits are dropped!
>
> Is this true?
> Is there a way to obtain my desired behavior?
>
> Please note that I cannot simply increase the commited bandwidth of
both
> users to 5 bps because there are a lot of other "potential" users (that
> currently are not using bandwidth) so the sum of bandwidths would
> exceeds the bandwidth of the parent queue.
>
>
> Thanks.
>
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|ederico Giannici http://www.neomedia.it
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