Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual page 124

JUNOSe 11.1.x Quality of Service Configuration Guide
The simple shared shaper uses the following formula to calculate the new measured
Step 1: Calculate the
rate:
New Measured Rate
The simple shared shaper maintains a VOQL, which cannot become less than zero,
Step 2: Calculate the
using the following formulas:
VOQL
Each rate period, the simple shared shaper calculates the new dynamic rate (the
Step 3: Calculate the
shaping rate of the best-effort node or queue) using the following formula. The system
New Dynamic Rate
prevents the new dynamic rate from becoming less than zero.
The simple shared shaper determines the larger of the new dynamic rate and a
Step 4: Determine the
minimum dynamic rate, where the minimumDynamicRate is a fraction of the
Larger Value of the New
shared-shaping rate, using the following formula:
Dynamic Rate and the
Minimum Dynamic Rate
Related Topics
92
Variables of the Simple Shared Shaper Algorithm
Simple Shared Shaping Algorithm Overview on page 89
Sample Process for Controlling the Simple Shared Shaper Algorithm on page 95