RE: Calculation of queue lenghts

From: Popgeorgiev, Nikolay (nikolay.popgeorgiev@nsn.com)
Date: Tue Feb 26 2008 - 14:08:53 ARST


Hi,

For example:

I will have 4 queues.

1 priority for voice (50% of the line)
2 for signalling 30%
3 for other important traffic 15%
4 default for other 5%

On all these queues according to some principals queue lenghts(or
depths) should be configured. As far as I know average packet size, %of
the link usage and other stuff should be considered when deciding these
lenghts.

For example I have read somewhere this formula:

Length = (link bw * %max used in case of congestion / 8) / average
packet size

Any directions and thoughts on this will be well appreciated.

Thank you,
Nikolay

 

-----Original Message-----
From: ext Gary Duncanson [mailto:gary.duncanson@googlemail.com]
Sent: Monday, February 25, 2008 6:07 PM
To: Popgeorgiev, Nikolay
Cc: ccielab@groupstudy.com
Subject: Re: Calculation of queue lenghts

Hi Nikolay,

Have you anymore details?
----- Original Message -----
From: "Popgeorgiev, Nikolay" <nikolay.popgeorgiev@nsn.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Monday, February 25, 2008 3:22 PM
Subject: Calculation of queue lenghts

> Hi all,
>
>
> Can somebody tell me a formula on which to calculate the best queue
> length to be set in a queue.
>
> Regards,
> Nikolay
>
>



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