For ISP network engineers implementing QOS policy for rate limiting. That is metering and policing.
This will help you in determining the proper burst size; Normal burst (in bytes) or Extended Burst (in bytes). The higher the burst size, the better the quality of experience for your subscribers when the configured bandwidth is over-utilized.
This calculation is based on a formula provided by CISCO.
Credits: Brian
Problem or Goal:
Burst-size limit is very important while implementing QOS policy
A policer burst-size limit controls the number of bytes of traffic that can pass unrestricted through a policed interface when a burst of traffic pushes the average transmit or receive rate above the configured bandwidth limit. The actual number of bytes of bursty traffic allowed to pass through a policed interface can vary from zero to the configured burst-size limit, depending on the overall traffic load.
Setting burst size helps to alleviate the aggressive bandwidth shaping caused by rate limiting configurations.
Solution:
Download Burst Size Calculator here
Download from my dropbox here
Problem Solved?
Yes
