From: Dan Shechter (danshtr@yahoo.com)
Date: Mon Jun 28 2004 - 07:44:15 GMT-3
So what would be the solution??
Maybe custom queue with queue length of 1?
Bob Sinclair wrote:
>Joe,
>
>WRED will drop UDP traffic, based on precedence or dscp values, but as you
>point out, the sender is not going to back off as it would for TCP traffic.
>The FRED solution I suggested earlier is UDP-based, but would probably not
>be appropriate, since it cannot be combined with a CBWFQ bandwidth
>reservation.
>
>Perhaps something along the following lines is what is needed??
>
>
>policy-map test
> class test
> bandwidth percent 10
> random-detect
> set ip precedence 5
> police 154400 conform-action transmit exceed-action set-prec-transmit 0
>
>The set/police combo above should result in the first 10% of a T1 set to
>prec 5, the remaining set to 0. WRED will more aggressively drop the prec 0
>traffic.
>
>Bob Sinclair
>CCIE #10427, CISSP, MCSE
>www.netmasterclass.net
>
>----- Original Message -----
>From: "Joe Chang" <changjoe@earthlink.net>
>To: <C.Sammarcellino@sirtisistemi.it>; <ccielab@groupstudy.com>
>Sent: Sunday, June 27, 2004 6:12 PM
>Subject: Re: Help on QOS
>
>
>
>
>>Can WRED have any affect at all on UDP traffic? WRED works by manipulating
>>the TCP layer congestion avoidance mechanisms.
>>
>>----- Original Message -----
>>From: <C.Sammarcellino@sirtisistemi.it>
>>To: <ccielab@groupstudy.com>
>>Sent: Sunday, June 27, 2004 1:56 PM
>>Subject: Help on QOS
>>
>>
>>
>>
>>>I have the following doble:
>>>
>>>I want reserve for a application thath use UPD port from 3000 to 5000,
>>>
>>>
>>this
>>
>>
>>>application may use 10% of bandwith, but if the taffic excede the 10% i
>>>want drop packet aggressively, a other applicatio use ftp-data, ftp-data
>>>may use 20% of bandwith.
>>>
>>>
>>>I ask for the correct configuration , because i am not shure if use
>>>
>>>
>>Police,
>>
>>
>>>or WRED for aggressive dropping in CBWFQ.
>>>
>>>Bye
>>>
>>>Ciro
>>>
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>
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