Qos Parameterization In Vsa 250/252 - Cisco 10000 Series Configuration Manual

Chapter 5 Dynamic Service Policy Modifications
The QoS-actions-list field indicates an action, followed by the action parameters enclosed in parentheses
and separated by commas. For example, the following sample configuration specifies the police action
and defines the parameters bps, burst-normal, burst-max, conform-action, exceed-action, and
violate-action. Parentheses enclose the action parameters.
police(200000,9216,0,transmit,drop,drop))
The example above shows a double-parenthesis at the end because the syntax of the VSA specifies to
Note
enclose the target, class-list, and QoS-actions-list in parentheses.
For information about the QoS policy actions to specify in the QoS-actions-list field, see the
Parameterized Actions" section on page
Removing Classes and QoS Actions
To remove or modify traffic classes and QoS actions defined in a QoS policy that is active on a session,
use the remove-class primitive. The RADIUS attribute has the following format:
qos-policy-in=remove-class(target,(class-list))
qos-policy-out=remove-class(target,(class-list))
•
•
For example, the following VSA 1attribute removes the VoIP class and all associated QoS policy actions
from the nested child policy of the transient policy attached to the subscriber session. The transient
policy is the parameterized copy of the originally configured policy. The configured QoS policy remains
unchanged.
qos-policy-out=remove-class(sub,(class-default,voip))
When you remove a traffic class from a QoS policy, all of the attributes for this class are also removed.
To readd the class with the same attributes, you must reissue the add-class RADIUS attribute and provide
the required parameters and values.

QoS Parameterization in VSA 250/252

To prevent RADIUS server from fragmenting the VSA string, use the AAA recommended string of 252
bytes. To accommodate multiple ISG and QoS services commands in a 252-byte string, described in the
following sections:
OL-14660-03
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—A list of class names enclosed in parentheses that identifies the class or classes to
be removed. 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.
Cisco 10000 Series Router Access Network Control Protocol Configuration Guide
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QoS Parameterization in VSA 250/252
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