Re: random detect under a policy-map

From: Schulz, Dave (DSchulz@dpsciences.com)
Date: Tue Mar 21 2006 - 21:04:09 GMT-3


Hmmm, I am not sure if you can control "when" RED is in effect. Other than based on dscp or precedence. Maybe someone else has some ideas on this one.

Dave Schulz
*** Sent from my Blackberry ***

-----Original Message-----
From: david robin <robindavi@gmail.com>
To: Schulz, Dave <DSchulz@dpsciences.com>
CC: Cisco certification <ccielab@groupstudy.com>
Sent: Tue Mar 21 18:16:35 2006
Subject: Re: random detect under a policy-map

yep,
thats what i want , if traffic exceed 60 % enable random detect on the interface

 
On 3/21/06, Schulz, Dave <DSchulz@dpsciences.com> wrote:

        That is an interesting lab question....it appears the first scenario
        would provide a minimum of 60 percent of the link for all traffic and
        also do random detect on the same traffic, since they are both part of
        the same class. The second one is similar, but shaping to 60% and also
        doing random detect on that traffic. However, the way I read your
        question is...to only do random detect when the threshold of 60% is
        exceeded. Is this what you are looking to do?
        
        
        Dave Schulz,
        Email: dschulz@dpsciences.com
        
        
        
        -----Original Message-----
        From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
        david robin
        Sent: Tuesday, March 21, 2006 3:20 PM
        To: Cisco certification
        Subject: random detect under a policy-map
        
        dear all,
        I have a question, if said all traffic on an interface will use 60 % and
        you
        must enable random detection if traffic pass this limit,
        I have 2 things in minds but i dont know who will be the correct answer.
        
        1- by using the bandwidth command
        
        policy-map xx
        class all-traffic
        bandwidth percent 60
        random detect
        !
        where class all-traffic will match all the traffic
        but as far as I know the bandwidth command will not reserve the 60 %
        untill
        there is a congetion on the physical interface itself, and random detect
        will not work there is a main interface congestion and the traffic will
        exceed 60 % Am i right about that ????
        
        
        2- by using the shaping command and i think this will be the right
        answer:
        
        policy-map xx
        class all-traffic
        shape average percent 60
        random detect
        !
        I think this will be the solution?
        any comment or any other solutions about that?
        
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