Cisco Cisco Packet Data Interworking Function (PDIF) Guía De Administador
Gx Interface Support
▀ Rel. 7 Gx Interface
▄ Cisco ASR 5x00 Home Agent Administration Guide
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Supported Networks and Platforms
This feature is supported on all chassis with StarOS Release 8.1 and later running GGSN service for the core network
services.
services.
License Requirements
The Rel. 7 Gx interface support 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.
Supported Standards
The Rel 7. Gx interface support is based on the following standards and RFCs:
3GPP TS 23.203 V7.6.0 (2008-03): 3rd Generation Partnership Project; Technical Specification Group Services
and System Aspects; Policy and charging control architecture (Release 7)
3GPP TS 29.212 V7.8.0 (2009-03): 3rd Generation Partnership Project; Technical Specification Group Core
Network and Terminals; Policy and Charging Control over Gx reference point (Release 7)
3GPP TS 29.213 V7.4.0 (2008-03): 3rd Generation Partnership Project; Technical Specification Group Core
Network and Terminals; Policy and Charging Control signalling flows and QoS parameter mapping; (Release
7)
7)
RFC 3588, Diameter Base Protocol; September 2003
RFC 4006, Diameter Credit-Control Application; August 2005
Terminology and Definitions
This section describes features and terminology pertaining to Rel. 7 Gx functionality.
Policy Control
The process whereby the PCRF indicates to the PCEF how to control the IP-CAN bearer.
Policy control comprises the following functions:
Binding: Binding is the generation of an association between a Service Data Flow (SDF) and the IP CAN bearer
(for GPRS a PDP context) transporting that SDF.
The QoS demand in the PCC rule, as well as the SDF template are input for the bearer binding. The selected
bearer will have the same QoS Class as the one indicated by the PCC rule.
bearer will have the same QoS Class as the one indicated by the PCC rule.
Depending on the type of IP-CAN and bearer control mode, bearer binding can be executed either by the
PCRF, or both PCRF and PCEF.
PCRF, or both PCRF and PCEF.
For UE-only IP-CAN bearer establishment mode, the PCRF performs bearer binding. When the PCRF
performs bearer binding, it indicates the bearer (PDP context) by means of Bearer ID. The Bearer ID
uniquely identifies the bearer within the PDP session.
uniquely identifies the bearer within the PDP session.