[squid-users] Re: Regarding delay pools

From: Adam Aube <aaube01@dont-contact.us>
Date: Tue, 29 Jun 2004 23:36:04 -0400

Pundaleek P Belamge wrote:

> Hi List-mates,

Hi. Why did you post your question three times? The most you can accomplish
by doing that is annoying the list - which likely isn't what you want.

> delay_pool 1
> delay_class 1 3
> delay_parameters 1 2mbps/2mbps 64kbps/64kbps 5kbps/5kbps

> I have first n/w level A
> 2nd n/w level B C
> 3rd n/w level D E F G

> According to Delay_parameters 2mbps line for aggregate bucket, 64kbps for
> subnetworks B and C(according to what i knew) and 5kbps for per individual
> hosts D, E, F and G.

Yes - provided A is a class B network and B and C are class C networks. That
is what the delay pool assumes when allocating bandwidth.

> What happens, if B subnetwork is not using any of the allocated
> bandwidth. Is that allocated bandwidth gets wasted or other subnetwork C
> can use that bandwidth. If not, is there any way to use that unused
> bandwidth.

By your configuration, no matter how much bandwidth is available, neither
subnet will use more than 64Kbps total. Excess available bandwidth is
wasted. The same is true of the per-IP limits - no matter how much
bandwidth is available, any given IP address can only get 5kbps.

To enable "sharing", you need to set your delay pools to oversubscribe your
bandwidth. The general rule of thumb is to set the limits so that one third
of your users (at the permitted full speed) would saturate your link.

Adam
Received on Tue Jun 29 2004 - 21:34:15 MDT

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