Cisco Cisco Packet Data Gateway (PDG) Manuel De L’Administrateur
Gx Interface Support
▀ Rel. 8 Gx Interface
▄ Cisco ASR 5x00 Home Agent Administration Guide
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Terminology and Definitions
This section describes features and terminology pertaining to Rel. 8 Gx functionality.
Volume Reporting Over Gx
This section describes the 3GPP Rel. 9 Volume Reporting over Gx feature.
License Requirements
The Volume Reporting over Gx 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.
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.
Important:
In 12.0 and later releases, no separate license is required for Charging over Gx / Volume Reporting
over Gx feature. This feature can be enabled as part of "Policy Interface" license.
Supported Standards
The Volume Reporting over Gx feature is based on the following standard:
3GPP TS 29.212 V9.5.0 (2010-06): 3rd Generation Partnership Project; Technical Specification Group Core Network
and Terminals; Policy and Charging Control over Gx reference point (Release 9).
and Terminals; Policy and Charging Control over Gx reference point (Release 9).
Feature Overview
The Volume Reporting over Gx feature provides PCRF the capability to make real-time decisions based on the data
usage by subscribers.
usage by subscribers.
Important:
Volume Reporting over Gx is applicable only for volume quota.
Important:
In release 10.0, only total data usage reporting is supported, uplink/downlink level reporting is not
supported. In 10.2 and later releases, it is supported.
Important:
The PCEF only reports the accumulated usage since the last report for usage monitoring and not from
the beginning.
Important:
If the usage threshold is set to zero (infinite threshold), no further threshold events will be generated
by PCEF, but monitoring of usage will continue and be reported at the end of the session.
Important:
In 12.2 and later releases, usage reporting on bearer termination is supported.
The following steps explain how Volume Reporting over Gx works:
1. PCEF after receiving the message from PCRF parses the usage monitoring related AVPs, and sends the
information to IMSA.