From: Usama Pervaiz (chaudri@gmail.com)
Date: Sun Jun 15 2008 - 19:35:00 ART
Thank you guys for your prompt replies!!
couple of questions though.
Joseph: First thanks for the link, its very useful. I agree with you
that the bandwidth command should be used. I am however a little
confused as the article implies to set a parent policy map that shapes
the traffic. I do not know what I should shape the traffic to! I guess
i need to do a bit more research.
Peter: I understand what you mean about the output queues. I am a bit
concerned though as the question states that you have to guarantee
10Mbps traffic FROM these 2 routers. i.e. you cannot touch the other 2
routers. If I use CBWFQ I am guaranteeing 10Mbps TO those routers.
Thanks again guys for the help.
Usama.
On Sun, Jun 15, 2008 at 5:43 PM, Peter Stephan <engpeter@gmail.com> wrote:
> Usama,
>
> There's no meaning to apply shaping on input direction. It's an output queue
> that you create for your data to flow outside smoothly, to either increase
> your chance of interleaving higher priority data or to reduce the rate at
> which you send data packets out on the trasmit ring for transmission.
>
> So in this case, you could you use policing to policy at 10 Mbps, which you
> can do on the input direction (but this is not shaping), as you won't need a
> queue. Or you go on the other transmitting router and you apply shaping on
> it facing this interface.
>
> Also, saying "during congestion" that's CBWFQ not policing. Cz policing will
> work all the time. So your traffic will be limited to 10 Mbps at any moment.
>
> HTH
>
> On Sun, Jun 15, 2008 at 2:14 PM, Usama Pervaiz <chaudri@gmail.com> wrote:
>>
>> Hello all,
>>
>> I had a question on QoS. router R1 is connected to two other routers
>> through sub interfaces (fa0/1.1 and fa0/1.2). I want to GUARANTEE
>> 10Mbps for traffic coming from both these routers when there is
>> congestion. Does this mean to police the traffic? I tried to use the
>> bandwidth command but I cannot apply it to the interface in the input
>> direction. Is there a better way of doing this?
>>
>> This is what I did:
>>
>> class-map match-all test
>> match access-group 110
>> !
>> !
>> policy-map TEST
>> class test
>> police 10000000
>>
>> access-list 110 permit ip 10.2.1.0 0.0.0.255 any
>> access-list 110 permit ip 10.3.1.0 0.0.0.255 any
>>
>> interface FastEthernet0/1
>> no ip address
>> duplex auto
>> speed auto
>> service-policy input TEST
>>
>>
>> Any and all help is appreciated!!
>>
>> Usama
>>
>>
>> _______________________________________________________________________
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>>
>>
>>
>>
>
>
>
> --
> Cheers,
> Peter.
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