RE: Custom Queueing

From: DAN DORTON (DHSTS68@xxxxxxxxxxxxxxx)
Date: Mon Apr 01 2002 - 16:43:30 GMT-3


   
When the formula for calculating percent & byte count exactly is applied
I get.

queue-list 1 protocol ip 1
queue-list 1 protocol bridge 2
queue-list 1 protocol dlsw 3
queue-list 1 queue 1 byte-count 2048
queue-list 1 queue 2 byte-count 1024
queue-list 1 queue 3 byte-count 1024

Dan

>>> "Carl Phelan" <carlphelan@hotmail.com> 04/01/02 01:02PM >>>
Hi Todd

Thanks for the reply, I should have made the ip queue 1 and not 0.
How
about this instead:

queue-list 1 protocol ip 1
queue-list 1 protocol bridge 2
queue-list 1 protocol dlsw 3
queue-list 1 queue 1 byte-count 3000 limit 1
queue-list 1 queue 2 limit 3
queue-list 1 queue 3 limit 6

So the ip queue will be allocated 1 packet at 2048 bytes, bridging and
dlsw although configured as 1500 bytes do not appear with their
byte-count in the running config because it is the default MTU size
and
both these queues are limited to 3 and 6 packets respectively
totalling
1536 bytes.

Thanks for your help.

-----Original Message-----
From: Todd Carswell [mailto:acarswell@nc.rr.com]
Sent: 01 April 2002 19:54
To: Carl Phelan; ccielab@groupstudy.com
Subject: Re: Custom Queueing

Carl,

No, your config will not allocate 50% of the bandwidth for IP traffic.

Try this one out...

queue-list 1 protocol ip 0
queue-list 1 protocol bridge 2
queue-list 1 protocol dlsw 3
queue-list 1 queue 1 byte-count 6000
queue-list 1 queue 2 byte-count 3000
queue-list 1 queue 3 byte-count 3000

Using the "limit" option will only change the number of packets
allowed
in
the queue. To allocate bandwidth percentages, you need to specify the
byte-count for each queue so that you get the desired bandwidth
percentages.

Custom Queueing works in a round robin fashion. It will go to queue
#1
and
send the specified number of bytes, then it will go to queue #2, and
so
on.
In the config that I've put here, IP gets 50% of the bandwidth and the
other
2 protocols get 25% each.

Here's another way to look at it: In this scenario, custom queueing
will
transmit a total of 12,000 bytes of traffic each time it cycles
through
all
of the queues. Since IP's byte-count is set at 6000, it will get 50%
of
the
bandwidth.

Hope that helps!

Todd

----- Original Message -----
From: "Carl Phelan" <carlphelan@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Monday, April 01, 2002 12:07 PM
Subject: Custom Queueing

> Hi All,
>
> Can anyone tell me if this custom queue list is ok to allocate 50%
of
> bandwidth to IP, 25% to bridging and 25% to dlsw considering IP has
a
> packet size of 2048, bridging a packet size of 512 and dlsw a packet
> size of 256?
>
>
>
> queue-list 1 protocol ip 0
> queue-list 1 protocol bridge 2
> queue-list 1 protocol dlsw 3
> queue-list 1 queue 1 byte-count 6000 limit 2048
> queue-list 1 queue 2 limit 512
> queue-list 1 queue 3 limit 256
>
> Many thanks,
>
> Carl



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