Cisco ASR 5000 series Product Overview page 265

CDMA2000 Wireless Data Services
Figure 74.
Table 52. Simple IP Call Flow Description
Step Description
1 Mobile Node (MN) secures a traffic channel over the airlink with the RAN through the BSC/PCF.
2 The PCF and PDSN establish the R-P interface for the session.
3 The PDSN and MN negotiate Link Control Protocol (LCP).
4 Upon successful LCP negotiation, the MN sends a PPP Authentication Request message to the PDSN.
5 The PDSN sends an Access Request message to the RADIUS AAA server.
OL-22938-02
Simple IP Call Flow
Understanding Simple IP and Mobile IP ▀
Cisco ASR 5000 Series Product Overview ▄