From: Swaroop Potdar (swarooppotdar@hotmail.com)
Date: Wed Nov 17 2004 - 03:48:35 GMT-3
As far as the explanantion in the DOC about the change in the 12.1 goes
Is my config below applicable to the packet sizes and percentages you have
given;
300 byte-count for http
450 byte-count for UDP
750 byte-count for Default.
as if the byte-count doesnt match the packet size the credit will be give
and serviced in the next cycle.
so every alternate cycle the default packet would be serviced and every
approx 4 cycles UDP and
so forth.
Is this correct ????
>To: ccielab@groupstudy.com
>Subject: CQ was modified in Cisco IOS Release 12.1
>Date: Tue, 16 Nov 2004 07:43:43 -0500
>
>Hi,
>
>I just found this note about changing on Custom Queue:
>
>=================
>Note CQ was modified in Cisco IOS Release 12.1. When the queue is
>depleted early, or the last packet from the queue does not exactly match
>the configured byte count, the amount of deficit is remembered and
>accounted for the next time the queue is serviced. Beginning with Cisco IOS
>Release 12.1, you need not be as accurate in specifying byte counts as you
>did when using earlier Cisco IOS releases that did not take deficit into
>account.
>
>http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_chapter09186a00800b75a9.html#48685
>=================
>
>No examples. Just the old way of calculating byte-count.
>
>Also, on Wendell and Vegesna, there is no word about this (at least I could
>not found it).
>
>Would the changing on IOS make the way of implementing CQ be different?
>For example:
>
>Old Style
>tcp http, packet size 1000, bandwidth 20%
>udp port 68, packet size 2000, bandwidth 30%
>default, packet size 1500
>
>20/1000= 0.02
>30/2000= 0.015
>50/1500= (default) 0.033
>
>0.02/0.015 = 1.33 -> 2
>0.015/0.015 = 1 -> 1
>0.033/0.015 = 2.2 -> 3
>
>Byte count would be 2 x 1000 for tcp http
> 1 x 2000 for udp port 68
> 3 x 1500 for any other (default)
>
>Now, would it be any different on 12.1 (and after)?
>
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Regards,
Swaroop.
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