Configuring Simple Shared Shaper Algorithm Variables; Table 8: Guidelines For Configuring Simple Shared Shaper Algorithm; Variables - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - QUALITY OF SERVICE CONFIGURATION GUIDE 2010-09-22 Configuration Manual

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Configuring Simple Shared Shaper Algorithm Variables

Copyright © 2010, Juniper Networks, Inc.
Table 8 on page 89 displays guidelines for configuring the most liberal shared shaper to
the most conservative shared shaper.
Most liberal—Appropriate when over-queuing is not a concern
Liberal—Appropriate when over-queuing is not a concern and a smoother rate
adjustments are desirable
Moderate—Default settings
Conservative—Appropriate when over-queuing is a major concern
Most conservative—Rarely appropriate.

Table 8: Guidelines for Configuring Simple Shared Shaper Algorithm

Variables

Most
Control Liberal
convergence-factor 0
maximum-voql 0
reaction-factor 0
Simple Shared Shaping Algorithm Overview on page 85
Configuring Simple Shared Shaper Algorithm Variables on page 89
To configure the variables for all simple shared shapers on the router:
Enter QoS Shared Shaper Control Configuration mode.
1.
host1(config)#qos-shared-shaper-control
host1(config-qos-shared-shaper-control)#
(Optional) Configure the convergence factor for all simple shared shapers on the
2.
router.
host1(config-qos-shared-shaper-control)#convergence-factor 25
The convergence factor determines how quickly the dynamic shaping rate converges
with the calculated dynamic shaping rate, and is expressed as a percentage of the
available bandwidth.
The range for the convergence factor is 0–99 percent, with 0 being the most liberal
and 99 the most conservative. The default value is 50.
(Optional) Configure the specify the reaction factor for all simple shared shapers on
3.
the router.
host1(config-qos-shared-shaper-control)#reaction-factor 50
Chapter 11: Configuring Variables in the Simple Shared Shaping Algorithm
Liberal Moderate
25 50
25 400
50 200
Most
Conservative Conservative
75 99
600 1000
300 1000
89