Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
Cisco ASR 5000 Series Packet Data Serving Node Administration Guide ▄
OL-22939-01
Chapter 2
Understanding the Service Operation and Configuration
The system provides wireless carriers with a flexible solution that can support both Simple IP and Mobile IP
applications (independently or simultaneously) within a single scalable platform. Simple IP and Mobile IP applications
are described in detail in the System Overview Guide.
applications (independently or simultaneously) within a single scalable platform. Simple IP and Mobile IP applications
are described in detail in the System Overview Guide.
When supporting Simple IP data applications, the system is configured to perform the role of a Packet Data Serving
Node (PDSN) within the carrier's 3G CDMA2000 data network. The PDSN terminates the mobile subscriber‘s Point-to-
Point Protocol (PPP) session and then routes data to and from the packet data network (PDN) on behalf of the
subscriber. The PDN could consist of Wireless Application Protocol (WAP) servers or it could be the Internet.
Node (PDSN) within the carrier's 3G CDMA2000 data network. The PDSN terminates the mobile subscriber‘s Point-to-
Point Protocol (PPP) session and then routes data to and from the packet data network (PDN) on behalf of the
subscriber. The PDN could consist of Wireless Application Protocol (WAP) servers or it could be the Internet.
When supporting Mobile IP data applications, the system can be configured to perform the role of the PDSN/Foreign
Agent (FA) and/or the Home Agent (HA) within the carrier's 3G CDMA2000 data network. When functioning as an
HA, the system can either be located within the carrier‘s 3G network or in an external enterprise or ISP network.
Regardless, the PDSN/FA terminates the mobile subscriber‘s PPP session, and then routes data to and from the
appropriate HA on behalf of the subscriber.
Agent (FA) and/or the Home Agent (HA) within the carrier's 3G CDMA2000 data network. When functioning as an
HA, the system can either be located within the carrier‘s 3G network or in an external enterprise or ISP network.
Regardless, the PDSN/FA terminates the mobile subscriber‘s PPP session, and then routes data to and from the
appropriate HA on behalf of the subscriber.
Prior to connecting to the command line interface (CLI) and beginning the system's configuration, there are important
things to understand about how the system supports these applications. This chapter provides terminology and
background information that must be considered before attempting to configure the system.
things to understand about how the system supports these applications. This chapter provides terminology and
background information that must be considered before attempting to configure the system.