Rate-limit

Unanswered Question
Aug 8th, 2008
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From the statement below,the normal and max burst(2000 2000),are these parameters set up arbitrary or by calculation?Please advise


rate-limit input access-group 120 360000 2000 2000 conform-action

transmit exceed-action drop

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rkhalil Fri, 08/08/2008 - 13:37
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We calculate as follows...as specifications of Cisco.


Bits per second = MBits*1000000

Normal burst bytes = (Bits per second)/8*1,5

Maximum burst bytes = (Normal burst bytes)*2


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Regards,

Raul

(please rate helpful posts)


mukendi Mon, 08/11/2008 - 00:33
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Hi Raul,


You are right,your answer can be verified by the statement below,keep it up!


rate-limit output 128000 24000 48000 conform-action transmit exceed-action drop

zamribesar Tue, 08/19/2008 - 07:28
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So, if we have 155 Mbps, then it will be:


Bits per second = MBits*1000000 = 155000000

Normal burst bytes = (Bits per second)/8*1,5 = 29062500

Maximum burst bytes = (Normal burst bytes)*2 = 58125000


e.g:


interface gigabitEthernet 0/3

rate-limit input 155000000 29062500 58125000 conform-action transmit exceed-action drop

rate-limit output 155000000 29062500 58125000 conform-action transmit exceed-action drop


-zamri-

rkhalil Tue, 08/19/2008 - 07:45
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Yes that's is ok.

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