Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Configuration Manual

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Step 1: Calculate the
New Measured Rate
The simple shared shaper uses the following formula to calculate the new measured
rate:
Step 2: Calculate the
VOQL
The simple shared shaper maintains a VOQL, which cannot become less than zero,
using the following formulas:
Step 3: Calculate the
New Dynamic Rate
Each rate period, the simple shared shaper calculates the new dynamic rate (the
shaping rate of the best-effort node or queue) using the following formula. The system
prevents the new dynamic rate from becoming less than zero.
Step 4: Determine the
Larger Value of the New
The simple shared shaper determines the larger of the new dynamic rate and a
minimum dynamic rate, where the minimumDynamicRate is a fraction of the
shared-shaping rate, using the following formula:
Dynamic Rate and the
Minimum Dynamic Rate
Related Topics
Simple Shared Shaping Algorithm Overview on page 89
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Sample Process for Controlling the Simple Shared Shaper Algorithm on page 95
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Variables of the Simple Shared Shaper Algorithm
JUNOSe 11.1.x Quality of Service Configuration Guide