From: Kay D (krsna83@gmail.com)
Date: Sat Jul 15 2006 - 18:31:37 ART
Hi,
The word "guaranteed" makes us think that we would have to use
"priority queue"
but the keyword "in case of congestion drop them randomly" makes me
think that
there is no difference between "priority queue" and " bandwidth "
,,,,as anyways packets would be dropped if there is congestion .
The second part of matching the packets with prec value of 2 and
assigning a bandwidth , should work with "bandwidth 128" .
Please correct me if i am wrong .
TIA
Kay D
Michael Stout wrote:
> i agree.
>
> i think the guaranteed minimum bandwidth of 128k makes a priority queue a
> requirement.
>
> --------------------------------------------------------------------
>
> From: "Victor Cappuccio" <cvictor@protokolgroup.com>
> Reply-To: "Victor Cappuccio" <cvictor@protokolgroup.com>
> To: "'Jeff Ryan'" <jeffryanwn@hotmail.com>, "'Cisco certification'"
> <ccielab@groupstudy.com>
> Subject: RE: congestion avoidance question
> Date: Sat, 15 Jul 2006 17:01:35 -0400
> Hi there Jeff,
>
> I think that
> class PREC_2 is using the priority 128 command.
>
> BTW I would like to know which workbook you are using, because I'm
> looking
> for a Workbook Specific to QOS Thanks
> Vmctor.-
>
> -----Mensaje original-----
> De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de
> Jeff
> Ryan
> Enviado el: Sabado, 15 de Julio de 2006 04:41 p.m.
> Para: Cisco certification
> Asunto: congestion avoidance question
>
> All, I'm doing a lab and it is aking me to make sure that all traffic
> leaving
> FA 0/0 (VlanX) set with Precedence 3 AND/OR traffic from VlanX
> destined to
> BB1
> vlan has a guaranteed minimum bandwidth of 128k. Also, make sure that
> in
> case
> of congestion that these packets get dropped randomly.
>
> Limit all traffic leaving FA 0/0 (VlanX) with Precedence 2 to 128k.
> DO NOT
> use
> policing or rate-limiting and DO NOT use an ACL to match IP
> Precedence.
>
> Does this look correct? Thanks in advance - Jeff
>
> --------
> R2#
> !
> ip cef
> !
> class-map match-any PREC_3_AND_OR_BB1
> match precedence 3
> match access-group 101
> class-map match-all PREC_2
> match precedence 2
> !
> !
> policy-map VLANX_OUT
> class PREC_3_AND_OR_BB1
> bandwidth 128
> random-detect
> class PREC_2
> shape average 128000
> !
> interface FastEthernet0/0
> service-policy output VLANX_OUT
> !
> access-list 101 permit ip 1.1.20.0 0.0.0.255 150.100.1.0 0.0.0.255
> !
>
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