Feature History For Parameterized Services; Default Qos Policy - Cisco 10000 Series Configuration Manual

Parameterized Services
The ISG and RADIUS server communicate using access and change of authorization (CoA) messages.
Based on ANCP-signaled rates and Cisco vendor specific attributes (VSAs) configured in RADIUS
service profiles, the RADIUS server uses Access-Accept and CoA messages to notify the ISG to
dynamically configure and activate services, deactivate services, or implement parameterized QoS
settings in a service policy.
Cisco VSAs 250 and 252, defined in RADIUS profiles, control the following QoS operations related to
the ANCP:
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After constructing the dynamic service policy, the ISG applies the policy to subscriber sessions and
sends a CoA message to notify the RADIUS server of the success of the operation. In addition, the ISG
might send a CoA request for a session accounting update from RADIUS. This update includes all of the
currently active ISG services and a copy of the QoS VSA. However, if the ISG was not able to
successfully apply the parameterized services and settings, RADIUS does not send a session accounting
update.
The following sections describe the QoS policy types that the router uses for parameterized services and
the precedence rules for applying parameterized services to subscriber sessions:
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Feature History for Parameterized Services

Cisco IOS Release
Release 12.2(31)ZV1
Release 12.2(34)SB

Default QoS Policy

A default QoS policy is a policy-map that shapes subscriber traffic that does not belong to any other
traffic class. The default policy contains the class-default class and specifies the shaping rate using the
shape command. For example, you can specify the shape command and set the shaping rate to the lowest
DSL rate.
A QoS policy can have only one default policy map. The ISG uses a virtual template to attach the default
policy to a VLAN subinterface or ATM PVC on which the subscriber session terminates. During session
establishment, the ISG applies the default policy to each default subscriber session and service.
Cisco 10000 Series Router Access Network Control Protocol Configuration Guide
5-2
Adding and removing classes
Adding and removing actions: shape, police, priority, bandwidth, and set cos commands
Modifying the average rate for the above actions
Activating and deactivating child policy-maps
Default QoS Policy, page 5-2
ATM Virtual Circuit QoS Policy, page 5-5
Dynamic and Default QoS Policy Precedence, page 5-5
Description
This feature was introduced on the Cisco 10000 series
router for the PRE3.
This feature was integrated into Cisco IOS
Release 12.2(34)SB and introduced on the PRE4.
Chapter 5 Dynamic Service Policy Modifications
PRE Required
PRE3
PRE4
OL-14660-03