Specifying Rates Within Rate-Limit Profiles - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - POLICY MANAGEMENT CONFIGURATION GUIDE 2010-10-04 Configuration Manual

JunosE 11.3.x Policy Management Configuration Guide

Specifying Rates Within Rate-Limit Profiles

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If you do not specify a value for this parameter in Interface Configuration mode, then the
Global configuration value is used.
You can modify the value of this parameter in Global Configuration mode or Interface
Configuration mode. In Interface Configuration mode, you can change the value using
the increase keyword.
If you use the no version of the command in Interface Configuration mode, the parameter
value is set to the global default value. The no version of the command with the increase
keyword decrements the value. The parameter value cannot have a negative value. The
no version of the command in Global Configuration mode deletes the parameter if it is
not used anywhere else.
Modified values affect the rates in the rate-limit profiles that are using the reference-rate
parameter.
NOTE: Beginning with JunosE Release 10.3.x, you cannot modify the policy
reference-rate parameter in Interface Configuration mode, if the
percent-based rate-limit profile is used in external parent groups. If you
attempt to change the reference-rate parameter that is referenced by multiple
classification operations using the policy-parameter reference-rate command
at the interface level, an error message is displayed in the CLI interface. This
restriction exists because multiple interfaces might refer to the same external
parent group resource and to prevent such interfaces from losing their
reference to the older external parent group resources. However, you can
modify the percent-based rate-limit profiles for external parent groups at
the hierarchical rate-limit profile level.
Within a rate-limit profile you can specify the rate either as a percentage or a specific
value. In two-rate rate-limit profiles, you can select committed rate and peak rate. You
can specify one rate in terms of percentage and another as a specific value. Also, one
rate can be a percentage of one parameter and another rate can be a percentage of
another parameter.
If the rate in a rate-limit profile is x percent, then the actual rate can be calculated from
a parameter value as:
Actual rate (in bits per second) = (parameter value *x)/100
The committed rate can be in the range 0—100 percent of the parameter value. The peak
rate can be in the range 0—1000 percent of the parameter value.
The parameter value derives the appropriate rate within the rate-limit profile using a
percentage. There are no validations to make the total rate less than or equal to the
parameter value.
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