Rate-limit

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Oct 27th, 2009
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Hi,

Can anyone help me to understand what is this rate-limit and how does this command Rate-limit work?

I have a requirment wherein i have to place rate-limit for certain type of traffic and cap that traffic to say smoe 10MBPS of bandwidth.


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ohassairi Tue, 10/27/2009 - 23:01
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The difference between CAR and traffic shaping is that CAR is a policing scheme. CAR sets maximum limits on traffic but does not shape traffic to a specified rate. CAR typically drops traffic that exceeds the rate; in contrast, traffic shaping delays traffic in a buffer to delay packets to shape the flow of traffic.

interface Hssi0/0/0


description 45Mbps Link with CAR


ip address 1.1.1.1 255.255.255.252


rate-limit input access-group 1 25000000 30000 30000 conform-action transmit exceed-action drop


rate-limit output access-group 1 25000000 30000 30000 conform-action transmit exceed-action drop


!


Access-list 1 permit 192.168.1.0 0.0.0.255



azharuddininamdar Wed, 10/28/2009 - 02:46
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Ohassairi thanks for the info.

i have one doubt. can you please help me if i have to cap the traffic for 18Mbps,then how the config looks like.how abt if i want to cap the traffic to 18Mbps on 18Mbps link itself?

what is the need to apply ratelimit in input and output both the directions?


in the above example on what are these values and on wat basis you have calculated these values 25000000 30000 30000?


Thanks

azharuddininamdar Wed, 10/28/2009 - 19:43
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Hi Ohassairi,

can you please help me in this?


can anyone help me for this config.


Thanks.

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