Дорожная карта для Cisco Cisco Tunnel Terminating Gateway (TTG)
GGSN Support in GPRS/UMTS Wireless Data Services
▀ How GGSN Works
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
Figure 116.
HA Assigned IP Address Proxy Mobile IP Call Flow
1. The Mobile Station (MS) goes through the process of attaching itself to the GPRS/UMTS network.