From: Ronny Jonathan (rjonathan@hotpop.com)
Date: Wed Oct 08 2003 - 11:23:41 GMT-3
If my understanding is correct, the word "limit" in the question would mean
that excess traffic should be dropped rather that being "buffered/shaped"
hence the 2nd config is more likely to be the answer.
Anyway in the lab exam, don't hesitate to clarify with the proctor if you
have any doubt in the wordings ...
Ronny
#11324
----- Original Message -----
From: "Donny MATEO" <donny.mateo@sg.ca-indosuez.com>
To: "Hunt Lee" <hunt_lee@bigpond.net.au>
Cc: <ccielab@groupstudy.com>; <nobody@groupstudy.com>
Sent: Wednesday, October 08, 2003 3:33 PM
Subject: Re: Which one should I pick ?
> I'll probably pick the second one for the sake of making sure that VLANA
> traffic should be limited to 5mbps and not more at any time.
> Shape will enforce queuing mechanism, thus it's possible for VLAN A to
> send more than 5mbps for a short period of time as the excess traffic
> would get buffered in the queue and ultimately delivered. One can argue
> that the actual physical bandwidth usage will stay below 5mbp, which is
> true. So this could be a valid solutions provided the intention of the
> question writer is just to make sure the bandwidth interface should be
> limited to 5mbp. However I read the requirement below a bit different, it
> specifically say to limit VLAN A traffic to 5 mbps (as oppose to limit
> physical bandwidth used by VLAN A to 5mbp which would make option 1 and 2
> valid), and that means police.
>
> But then again it really depens on how you read the question, you might
> read it differently then I did.
>
> Donny
> #11189
>
>
>
>
> Hunt Lee <hunt_lee@bigpond.net.au>
> Sent by: nobody@groupstudy.com
> 10/08/2003 10:05 AM
> Please respond to Hunt Lee
>
>
> To: ccielab@groupstudy.com
> cc: (bcc: Donny MATEO/ADPC/ASIA/BANQUE_INDOSUEZ/FR)
> Subject: Which one should I pick ?
>
>
> If I have a question:
>
> Configure CBWFQ on R1's Ethernet interface such that it allocates min
> bandwidth of 3mbps for VLANA. VLANA traffic should limit to 5mbps and
> cannot utilize more physical bandwidth during non-congestion period.
>
> Should I use:
>
> policy-map cbwfq
> class VLAND
> bandwidth 3000
> shape peak 5000000
>
> OR
>
> policy-map cbwfq
> class VLAND
> bandwidth 3000
> police 5000000 937500 1875000 conform-action transmit exceed-action drop
> violate-action drop
>
> And if you could give me reasoning on why you pick that one, it would be
> greatly appreciated.
>
> Thank you so much in advance,
> H.
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