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Intelligent Traffic Control
▀ Overview
▄ Cisco ASR 5x00 Home Agent Administration Guide
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Overview
Intelligent Traffic Control (ITC) enables you to configure a set of customizable policy definitions that enforce and
manage service level agreements for a subscriber profile, thus enabling you to provide differentiated levels of services
for native and roaming subscribers.
manage service level agreements for a subscriber profile, thus enabling you to provide differentiated levels of services
for native and roaming subscribers.
In 3GPP2 service ITC uses a local policy look-up table and permits either static EV-DO Rev 0 or dynamic EV-DO Rev
A policy configuration.
A policy configuration.
Important:
ITC includes the class-map, policy-map and policy-group commands. Currently ITC does not
include an external policy server interface.
ITC provides per-subscriber/per-flow traffic policing to control bandwidth and session quotas. Flow-based traffic
policing enables the configuring and enforcing bandwidth limitations on individual subscribers, which can be enforced
on a per-flow basis on the downlink and the uplink directions.
policing enables the configuring and enforcing bandwidth limitations on individual subscribers, which can be enforced
on a per-flow basis on the downlink and the uplink directions.
Flow-based traffic policies are used to support various policy functions like Quality of Service (QoS), and bandwidth,
and admission control. It provides the management facility to allocate network resources based on defined traffic-flow,
QoS, and security policies.
and admission control. It provides the management facility to allocate network resources based on defined traffic-flow,
QoS, and security policies.
ITC and EV-DO Rev A in 3GPP2 Networks
Important:
The Ev-Do Rev is a licensed Cisco feature. A separate feature license may be required. Contact your
Cisco account representative for detailed information on specific licensing requirements. For information on installing
and verifying licenses, refer to the Managing License Keys section of the Software Management Operations chapter in
the System Administration Guide.
and verifying licenses, refer to the Managing License Keys section of the Software Management Operations chapter in
the System Administration Guide.
You can configure your system to support both EV-DO Rev A and ITC. ITC uses flow-based traffic policing to
configure and enforce bandwidth limitations per subscriber. Enabling EV-DO Rev A with ITC allows you to control the
actual level of bandwidth that is allocated to individual subscriber sessions and the application flows within the sessions.
configure and enforce bandwidth limitations per subscriber. Enabling EV-DO Rev A with ITC allows you to control the
actual level of bandwidth that is allocated to individual subscriber sessions and the application flows within the sessions.
For more information on EV-DO Rev A, refer to the Policy-Based Management and EV-DO Rev A chapter. For setting
the DSCP parameters to control ITC functionality, refer to the Traffic Policy-Map Configuration Mode Commands
chapter in the Command Line Reference.
the DSCP parameters to control ITC functionality, refer to the Traffic Policy-Map Configuration Mode Commands
chapter in the Command Line Reference.
Bandwidth Control and Limiting
Bandwidth control in ITC controls the bandwidth limit, flow action, and charging action for a subscriber, application,
and source/destination IP addresses. This is important to help limit bandwidth intensive applications on a network. You
can configure ITC to trigger an action to drop, lower-ip-precedence, or allow the flow when the subscriber exceeds the
bandwidth usage they have been allotted by their policy.
and source/destination IP addresses. This is important to help limit bandwidth intensive applications on a network. You
can configure ITC to trigger an action to drop, lower-ip-precedence, or allow the flow when the subscriber exceeds the
bandwidth usage they have been allotted by their policy.