04-24-2009 01:25 PM - edited 03-04-2019 04:30 AM
Dear All,
In committed Access Rate the syntax is as follows
rate-limit {input | output} [access-group [rate-limit] acl-index | qos-group number] bps burst-normal burst-max conform-action action exceed-action action
e.x
rate-limit output 20000000 24000 24000 conform-action transmit exceed-action drop
Can any one explain how we achive Normal burst rate like
Burst Rate= CIR * (1/8) * 1.5
What is that 1.5 is for......
Many Thanks,
Saran
Solved! Go to Solution.
04-25-2009 01:33 AM
Hello Saran,
in CAR configuration the second and the third parameters are the normal burst size and the extended burst size expressed in bytes.
They are the size of buffers that can hold packets.
The idea is to allow for some burstiness of traffic.
So going to the formula it says:
Burst Size [B ] = CIR [ bps ] * 1/8 [B/b] * 1,5 s
that 1,5 is a time interval expressed in seconds.
so the command says:
allocate X bytes for normal buffer to be able to accomodate 1.5 seconds of traffic at CIR rate.
Hope to help
Giuseppe
04-25-2009 01:33 AM
Hello Saran,
in CAR configuration the second and the third parameters are the normal burst size and the extended burst size expressed in bytes.
They are the size of buffers that can hold packets.
The idea is to allow for some burstiness of traffic.
So going to the formula it says:
Burst Size [B ] = CIR [ bps ] * 1/8 [B/b] * 1,5 s
that 1,5 is a time interval expressed in seconds.
so the command says:
allocate X bytes for normal buffer to be able to accomodate 1.5 seconds of traffic at CIR rate.
Hope to help
Giuseppe
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