Re: Rate-limit Burst explanation

Bad news is your calculations are not correct, here see below:

Committed Access Rate (in bits)
must be in 8kbps increments

20Mbps 20000000bps (bits) 2500000Bps (Bytes)

Normal Burst (in bytes)
formula given by Cisco
Nb = CAR x (1/8) x 1.5

1/8 = 0.125 x 20000000 x 1.5 = Nb 3750000

Extended Burst (in bytes)
formula given by Cisco
Eb = 2 x Nb

3750000 x2 = Eb 7500000

Design practice says Nb should account for 1.5 secs of traffic and Eb x2 Nb

--
BR
Tony
Sent from my iPad
> On 22 Jul 2014, at 16:30, "R.B. Kumar" <seekumarin_at_gmail.com> wrote:
> 
> Hi All - I need your help to understand the Burst value in the Rate-Limit
> 
> Example: rate-limit input access-group 101 20000000 24000 32000
> 
> I understand the above configuration limit the traffic to 20Mbps. How to
> calculate the Burst-Normal (as per example above 24000 Bytes) and
> Burst-Max(as per above example 32000 Bytes). What is the logic for arriving
> the Burst-Normal & Burst-Max?
> 
> Thanks in advance
> 
> RB
> 
> 
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