Modifying Qos Configurations With Service Manager; Modifying Parameter Instances; Table 140: Sample Modifications Using The Add And Initial-Value Keywords - Juniper JUNOSE SOFTWARE 11.2.X - BROADBAND ACCESS CONFIGURATION GUIDE 7-20-2010 Configuration Manual

JunosE 11.2.x Broadband Access Configuration Guide

Modifying QoS Configurations with Service Manager

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When deactivating the service, Service Manager locates the QoS parameter instance
and subtracts the value in the command from the existing instance value. If the parameter
is no longer referenced, the parameter instance is removed.
This section describes how to modify QoS configurations with Service Manager.

Modifying Parameter Instances

Service Manager activates services without considering current parameter instance
values. For example, when you deactivate a video service, Service Manager can add
5 Mbps to a parameter associated with the shaping rate of a video queue.
Similarly, Service Manager can deactivate services and restore parameter instances to
their previous value. For example, when you deactivate a video service, Service Manager
can subtract 5 Mbps from a parameter associated with the shaping rate of a video queue.
Table 140 on page 636 lists the results of a series of activations and deactivations of
parameters using the add and initial-value keywords.
Table 140: Sample Modifications Using the Add and Initial-Value
Keywords
Action QoS Parameter Instance
Activate qos-parameter video-bw add 5000000
initial-value 0
Activate qos-parameter video-bw add 1000000
initial-value 0
Deactivate qos-parameter video-bw add 1000000
initial-value 0
Deactivate qos-parameter video-bw add 5000000
initial-value 0
Removing a parameter instance using profiles is based on the number of times a
parameter instance is modified, not the value added.
Modifying parameter instances in profiles and modifying explicit parameter instances
can cause invalid parameter instance values. Table 141 on page 637 lists a series of
activations and deactivations using parameter instances in profiles and explicit parameter
instances. By the second deactivation, the parameter has a negative value (-4000000).
NOTE: We recommend that you do not configure negative values for Service Manager.
Result
Parameter instance video-bw is created
with a value of 5000000
Parameter instance video-bw is
increased by 1000000, for a total of
6000000
Parameter instance video-bw is
decreased by 1000000, for a total of
500000
Parameter instance video-bw is
removed
Copyright © 2010, Juniper Networks, Inc.