Modifying The Active Session Qos Policy Using Radius; Configuring Qos Actions On A Traffic Class; Removing Classes And Qos Actions - Cisco 10000 Series Configuration Manual

Configuring Parameterized Services

Modifying the Active Session QoS Policy Using RADIUS

The RADIUS attribute used to modify the active QoS policy on a session is defined as a RADIUS VSA 1
command, which has the following format:
av-pair = "<policy-type>=<command> 9<parameter1>,...,<parametern>"
The Cisco VSA 1 is used to add and remove classes and QoS actions to and from the QoS policy that is
currently active on a session, and has the following format:
qos-policy-in=add-class(target,(class-list),QoS-actions-list)
qos-policy-out=add-class(target,(class-list),QoS-actions-list)
qos-policy-in=remove-class(target,(class-list))
qos-policy-out=remove-class(target,(class-list))
RADIUS uses the Cisco VSA 1 in either Access-Accept messages or change of authorization (CoA)
messages. A QoS policy must be active on the session before RADIUS uses the Cisco VSA 1. If a QoS
policy is not active in the specified direction, the policy is not created.
When implementing changes in the VSA, the ISG does not make the changes on the originally
configured QoS policy on the ISG. Instead, the ISG copies the active QoS policy for the session and then
makes any changes required to the copied, transient policy. The configured QoS policy on the ISG is not
changed.
The following sections describe the RADIUS attributes and Cisco VSAs used to configure
parameterization of QoS services:
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Configuring QoS Actions on a Traffic Class

To configure QoS actions on a traffic class, use the add-class primitive. The RADIUS attribute has the
following format:
qos-policy-in=add-class(target,(class-list)[,QoS-actions-list])
qos-policy-out=add-class(target,(class-list)[,QoS-actions-list)]
•
•
For example, the following class list identifies the new class named VoIP, which must be added under
the class-default class of the nested child policy attached to the target session.
(class-default,voip)
The following class list adds the voip-1 class under the voip-aggregate class of a nested child policy.
The voip-aggregate class is in turn nested under the class-default class of the QoS policy attached to the
target session.
(class-default, voip-aggregate,voip-1)
Cisco 10000 Series Router Access Network Control Protocol Configuration Guide
5-16
Configuring QoS Actions on a Traffic Class, page 5-16
Removing Classes and QoS Actions, page 5-17
target field—Indicates the QoS policy to be modified. The only valid value for this field is sub,
which indicates the active QoS policy attached to the subscriber session. The Access-Accept or
CoA message that includes this attribute must be targeting a subscriber session.
class-list field—Is a list of class names enclosed in parentheses that identifies the traffic class to
which the specified QoS action applies. The class names you specify must be either user-configured
class-maps or the system-generated class-default class. The order in which you specify the class
names indicates the hierarchical level of the class within the QoS policy.
Chapter 5 Dynamic Service Policy Modifications
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