From: Godswill Oletu (oletu@inbox.lv)
Date: Thu Dec 15 2005 - 02:30:10 GMT-3
Chacko,
WRED only work for TCP traffic. LLQ aka strict priority queuing was design
with voice in mind, since voice are UDP traffic, a particular priority class
can not be configured for WRED.
You can expereiment with parent/child policies and see if that will work for
you. Remember that, you also have the burst parament that you can use with
llq.
If you want some WRED, try CBWFQ instead.
ie
bandwidth 2000
random-detect prec-based
However, if you review the context of your original question, there are two
things that sticked out:
1. Give the traffic priority forwarding.
2. Drop traffic excess of 2Meg during congestion.
In my view LLQ fits more as the solution to meet the requirement than
anything else. CBWFQ will guarantee the bandwidth during congestion, but
will not give it priority forwarding. It is just like during this holiday
season, the post-office will guarantee that, your gifts will get to your
love ones before christmas, but they will not send them using priority
class. If you want better service or priority service, you have to pay more
$$$ and your package will always by pass every other package in queue in the
load dock/Air port, etc and be number 1, why other "poor guaranteed"
packages will be waiting for their turn in the queue.
HTH
Godswill Oletu
----- Original Message -----
From: "Chacko, Raj" <RChacko@DRAFTNET.com>
To: "'Godswill Oletu'" <oletu@inbox.lv>; "Chacko, Raj"
<RChacko@DRAFTNET.com>; "'Cisco certification'" <ccielab@groupstudy.com>
Sent: Wednesday, December 14, 2005 8:12 PM
Subject: RE: QOS question ; IE lab
> But where are you configuring WRED on here? If the matched traffic goes
> over
> 2Mbps, I need to set WRED on it. How do I do that? Nested policy may be?
> TIA
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Godswill Oletu
> Sent: Wednesday, December 14, 2005 12:58 PM
> To: Chacko, Raj; 'Cisco certification'
> Subject: Re: QOS question ; IE lab
>
> Wouldn't
>
> class-map matched_traffic
> match <match criteria>
> !
> policy-map mime
> class matched_traffic
> priority 2000
> !
>
> Be a better approached?
>
> HTH
> Godswill Oletu
>
> ----- Original Message -----
> From: "Chacko, Raj" <RChacko@DRAFTNET.com>
> To: "'Cisco certification'" <ccielab@groupstudy.com>
> Sent: Wednesday, December 14, 2005 1:25 PM
> Subject: QOS question ; IE lab
>
>
>> Hi GS,
>>
>> If I am asked to match some kind of traffic, give it priority forwarding
>> and
>> also required to configure so that if the traffic matched goes over
>> 2Mbps,
>> it should be candidate for drop during congestion, how do I accomplish
>> this?
>>
>>
>>
>> Here is what I have. I don't' think this is correct because all matched
>> traffic seems to be randomly discarded?
>>
>> !
>>
>> >
>> class aud_vid
>>
>> bandwidth 2000
>>
>> random-detect
>>
>> set dscp ef
>>
>> class class-default
>>
>> fair-queue
>>
>> !
>>
>>
>>
>> (this is from IE Vol2 lab 5, task 8)
>>
>>
>>
>> TIA
>>
>> Raj
>>
>>
>>
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