The IP Services Gateway (IPSG) is a stand-alone device capable of providing managed services to IP flows. The IPSG is situated on the network side of legacy, non-service capable GGSNs, PDSNs, HAs, and other subscriber management devices. The IPSG can provide per-subscriber services such as Enhanced Charging Service, Application Detection and Control, and others.
The IPSG allows the carrier to roll out advanced services without requiring a replacement of the HA, PDSN, GGSN, or other access gateways and eliminates the need to add multiple servers to support additional services.
Pre StarOS Release 21.3, IPSG supported only for 3G RAT type. From StarOS Release 21.3, 4G RAT Type and EPS QoS is supported. Support has been extended for IPSG to operate in the 4G RAT environment which enables IPSG to act as an inline service agent in the core 4G network.
For the list of AAA attributes supported by IPSG, refer to the IP Services Gateway AAA AVP Support appendix.
IPSG is a StarOS™ application that runs on Cisco® ASR 5500 and virtualized platforms. For additional platform information, refer to the appropriate System Administration Guide and/or contact your Cisco account representative.
The IP Services Gateway is a licensed Cisco product. Separate session and feature licenses may be required. Contact your Cisco account representative for detailed information on 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.